Luzon Agricultural Research and Extension Center (LAREC)
- 2009 Preliminary Yield Test (May 2012 – May 2014)
Thirty test clones from 2009 row test series were entered in the preliminary yield test at LAREC using RCBD to compare their agronomic and yield potential with two check varieties, Phil 8013 and Phil 7544, under natural field condition at LAREC.
Based on the tonnage and sugar yield, ten clones were found to be comparable with check variety Phil 8013 and Phil 7544. The clones also passed the selection criteria for disease resistance to smut and downy mildew.
The clones which are recommended to undergo ecological testing are Phil 09-1-0015, Phil 09-2-0037, Phil 09-7-0081, Phil 09-7-0093, Phil 09-27-0323, Phil 09-77-0919, Phil 09-86-1045, Phil 09-94-1145, Phil 09-107-1261 and Phil 09-217-1969
- Screening of Phil 2008 series for resistance to smut (May 2012 – May 2014)
Thirty clones of the 2008 series PYT from LGAREC were planted and tested for their reaction to sugarcane smut in the plant and ratoon cane
Among the thirty clones, rated very highly resistant were Phil 08-0004, 08-0155, 08-0161, 08-1001, 08-1009, 08-1123, 08-1451 and 08-1643; highly resistant, Phil 08-1005 08-1891, and 08-1957; resistant, Phil 08-0129, 08-0909, 08-1175, 08-1231 and 08-1253; intermediate resistant, Phil 08-003, 08-0553, 08-0649, 08-0747, 08-1307, 08-1355 and 08-1443; intermediate average, Phil 08-0415, 08-0571, 08-1003, 08-1179 and 08-1181. The remaining clones rated intermediate susceptible to very highly susceptible to the disease.
- Screening of Phil 2007 series for resistance to downy mildew (July 2012 – May 2014)
Ten clones of Phil 2007 series from LGAREC were screened and evaluated for resistance to sugarcane downy mildew in the plant and ratoon cane.
Among the ten clones of 2007 series, five clones were rated very highly resistant. These clones are Phil 06-0025, Phil 07-0027, Phil 07-0021, Phil 07-0243 and Phil 07-0573. Two were highly resistant, namely: Phil 07-0181 and Phil 07-0275. Phil 07-2081 was rated resistant. Phil 07-0299 was rated intermediate resistant while Phil 07-2319 was rated susceptible to downy mildew.
- Performance of Selected Phil Varieties in Luzon and Mindanao (20016 Ecological Test) (June 2011 – June 2014)
Ten test varieties selected from the 2006 series Preliminary Yield Test were planted to evaluate their yield performance in six mill districts of Luzon and Mindanao.
Among the test varieties, Phil 02-0421 and Phil 05-1763 showed better performance against the check varieties. The two varieties had more gains and/or evens than losses over the check varieties in tonnage, sucrose content and sugar yield. Phil 02-421 has a potential yield of 178.60 TC/Ha and 1.92 LKg/TC. Phil 05-1763 has a potential yield of 178.96 TC/Ha and 2.01 LKg/TC . Phil 02-0421 is resistant and very highly resistant to smut and downy mildew, respectively while Phil 05-1763 is highly resistant to both smut and downy mildew
Phil 02-0421 and Phil 05-1763 are recommended for further evaluation by the variety committee.
- Chlorophyll Stability Index (CSI) of Sugarcane Varieties Under Irrigated and Non – Irrigated Conditions (January 2012 – May 2014)
Leaf sampling on 4 month old canes in the plant crop and 3 month old canes in the ratoon crop which showed consistency in the chlorophyll Stability Index (CSI) values in both the irrigated and non-irrigated areas were selected as sampling periods.
Color, size and degree of rolling of leaves did not show consistency in relation to the CSI values.
The TC/Ha of the varieties in both irrigated and non – irrigated areas generally were significantly different.
Among the varieties, Phil 8013 and Phil 99-1793 which had highly stable CSI also produced higher TC/Ha and LKg/Ha under non – irrigated conditions.
CSI has the potential as tool for selection for resistance to dry or moisture stress conditions but sufficient data still has to be generated for its use.
- Cane and Sugar Yields as Affected by Variety and Season of Planting under Conventional Farming (November 2012 – May 2014)
Cane and sugar yields were significantly affected by variety (Phil 97-3501, Phil 97-3533, Phil 98-0255, Phil 99-1793 Phil 00-0659 and Phil 02-0359) and season of planting (early season in November, middle season in January and late season planting in March)
Highest TC/Ha was obtained on Phil 99-1793 in the early and late season planting and on Phil 00 -2569 in middle season planting LKg/TC was highest on Phil 97-3933 in early and middle season planting and on Phil 97-3501 in late season planting.
Highest LKg/Ha was obtained on Phil 97-3933, Phil 97-3501 and Phil 97- 1793 in early, middle and late season planting, respectively.
- Performance of Selected Phil 2007 Varieties in Three Mill Districts in Luzon (2007 Ecological Test) (July 2012 – November 2014)
Ten test varieties selected from the 2007 series Preliminary Yield Test were planted to evaluate their yield performance in three mill districts of Luzon.
Among the test varieties, Phil 07-0221 and Phil 07-0243 showed better performance against the check varieties. The two varieties have more gains and/or evens than losses over the check varieties in tonnage, sucrose content and sugar yield. Phil 07- 0221 has a potential yield of 148.32 TC/Ha and 2.10 LKg/TC. Phil 07-0243 has a potential yield of 148.13 TC/HA and 2.03 LKg/TC. Phil 07-0221 is very highly resistant to both smut and downy mildew while Phil 07-0243 is intermediate resistant to smut and very highly resistant to downy mildew.
Phil 07-0221 and Phil 07- 0243 are recommended for further evaluation by the variety committee.
La Granja Agricultural Research and Extension Center (LGAREC)
- Single Seedling Plot Test, Phil 2012 Series
The 2012 hybridization work which produced a total of 57,662 seedlings from 257 bi-parental crosses were transplanted from June 29 to July 11, 2013. From these, 34,115 seedling form 256 bi-parental crosses survived in the field or a survival rate of 59.16 percent which was mainly due to the effects of poor and much delayed land preparation. Selection in April 2014 using Phil 56-226 as control variety gave 939 promising clones from 171 bi-parental crosses. All promising clones were recommended to the next stage, the Row Test for further screening. The project was conducted form May 2013 to May 2014.
- Multiplication I, Phil 2011 Series
Three hundred fifty Phil 2011 Series clones selected from Row Test were multiplied (Multiplication I) and simultaneously tested for smut. Multiplication I was laid out and planted in January 2014. Number of clones will be selected again for Multiplication II and Downy mildew screening on July 2014 based on their agronomic and morphological characteristics. Multiplication I, Phil 2011 Series started in January 2014 and ended in June 2014.
- Multiplication II, Phil 2010 Series
The top thirty clones were selected from Multiplication II, Phil 2010 series as entries to the next stage, the Preliminary Yield Test 2010 based on their agronomic and morphological characteristics. One thousand canepoints for each clone were provided for LGAREC and LAREC Preliminary Yield Tests in Preparation for the Ecologic Test. Multiplication II started in August 2013 and ended in May 2014.
- Preliminary Yield Test, Phil 2009 Series
The Preliminary Yield Test of Phil 2009 Series was conducted at SRA, La Granja, La Carlota City from March 2013 to June 2014 to determine the yield and agronomic performance of sugarcane clones under representative environmental conditions and to select and recommend promising clones/varieties for ecological testing. There were 30 entries selected from Phil 2009 series Multiplication II with Phil 8013 and VMC 86550 as control varieties. Preliminary Yield Test is the Stage VI of the on-going Sugarcane Variety Improvement Program of SRA. The yield performance of Phil 2009 series clones showed that twelve clones stood out in tonnage over the two control varieties, Phil 8013 and VMC 86550. One clone was statistically higher in tonnage over the control, four clones were comparable. Two clones were numerically higher in LKg/TC but statistically comparable to the controls as well as the rest of the fourteen clones and fourteen clones were statistically lower than the two control varieties. LKg/Ha, two clones showed statistically higher sugar yield over the control Phil 8013 and VMC 86550, five were statistically lower to control varieties while the rest were statistically comparable. Results of the study showed ten selected promising clones recommended for further evaluation to the next stage of SVIP, the Ecologic Test.
- Propagation II, Phil 2009 Series
Thirty selected varieties of Phil 2009 Series were planted and propagated in SRA-LGAREC from November 2013 to May 2014 in preparation for Propagation III, the source of planting materials for the Ecologic Test in different locations nationwide. From these varieties, 10 were selected as entries to the Ecologic Test to be laid out in November 2014. The ten varieties selected and to be propagated in Propagation III are: Phil 2009-1963, Phil 2009-1867, Phil 2009-1969, Phil 2009-0125, Phil 2009-1567, Phil 2009-0037, Phil 2009-2147, Phil 2009-0097, Phil 2009-0919 and Phil 2009-0015.
- Ecologic Test, Phil 2007 Series
The performance of eight Phil 2007 series sugarcane varieties was evaluated in five mill districts in Negros and Panay islands from November 2012 to June 2014. The eight test varieties were as follows: Phil 07-0027, Phil 07-0243, Phil 07-0359, Phil 07-0411, Phil 07-0573, Phil 07-2018, Phil 07-2319, and Phil 07-0563. Phil 8013 was the national control variety and VMC 86550 was the local control. The study was laid out in had. Progreso, Isabela, Negros Occidental; Had. Tamaraw, Manapla, Negros Occidental; Sycip Plantation Farmworkers Multipurpose Cooperative Farm, Manjuyod, Negros Oriental; SRA La Granja, La Carlota City and Had. Hermont, Dingle, Iloilo. Results of the study in the different locations are being evaluated and report writing is in progress.
- Downy Mildew Resistance Test, Phil 2010 Series (Plant Cane and Ratoon)
The test was conducted in SRA, La Granja, La Carlota City from July 2013 to June 2014. One hundred ninety seven Phil 2010 Series clones were tested against downy mildew of sugarcane. In the plant cane, 184 clones were rated very highly resistant, 9 highly resistant, 3 resistant and 1 intermediate average to the disease. In the ratoon crop, 157 clones were very highly resistant, 27 highly resistant, 10 resistant, 2 intermediate resistant and 1 intermediate to the disease. All clones in the plant cane are recommended for further testing in the next stage.
- Smut Resistance Test, Phil 2011 Series (Row Test)
Three hundred fifty Phil 2009 series clones selected from the Row Test were evaluated for their resistance to smut disease of sugarcane from January to June 2014. Twenty single-eyed cuttings were used per test clone and 2 standard varieties were included as susceptible and resistant check varieties. Dipping method was followed in inoculating each entry. Inoculation was done by dipping the cane cuttings of the test clones and standard varieties in standardized smut spore suspension with a concentration of 5×106 spores/ml for 10 minutes. Inoculated seedpieces were incubated for 24 hours under plastic sheet covering before planting in plastic bags. Observations on the appearance of smut ships was done a month after planting and weekly thereafter until the plant reached 6 months old. Result of the experiment will be finalized after the last data collection scheduled on the last week of June 2014.
- Efficacy Test on the Use of Mycorrhizal Fungi (Mycoplex or Endoroots ) on Sugarcane
The study was conducted at Sugar Regulatory Administration, La Granja Agricultural Research and Extension Center, La Carlota City, Negros Occidental in Guimbalaon clay foam soil from February 2013 to February 2014. This was laid out in a randomized complete block design 9RCBD) replicated four times, generally, to determine the effectiveness of mycoplex or endoroots in promoting growth and yield of sugarcane in Guimbalaon clay loam soil and specifically (1) To determine the effectiveness of mycoplex or endoroots combination with 100% P and 100% NK or 50% P and 100% NK as manifested on yield of sugarcane and (2) to compare the yield of the recommended rate of NPK with or without mycoplex or endoroots.
Phil 99-1793 applied with mycoplex gave an improvement in tonnage yield by 20.02 TC/Ha over the unfertilized control without mycoplex.
Mycoplex plus the recommended NPK gave higher tonnage (117.02 TC/Ha) than the recommended rate (111.19) TC/Ha). A difference of 5.83 TC/Ha was realized. Likewise mycoplex + recommended NK without P gave an increase of 7.03 TC/Ha against recommended NK without P.
Mycoplex added to 50% recommended P and 100% NK gave an increase of 12. 32 TC/Ha agains 50% recommended P and 100% NK did not decrease the tonnage yield of Phil 99-1793 when supplemented with mycoplex.
Endoroots application improved the tonnage by 15.48 TC/Ha agains the unfertilized control without endoroots.
Endoroots added to recommended rate NK + 50% P improved the tonnage by 5.3 TC/Ha over RR NK + 50% P.
Recommended rate NK + endoroots gave an increase of 8.08 TC/Ha more than the recommended rate of NK.
- Ratoon Performance of Phil 99-1793, Phil 2000-0791, Phil 2000-2569 and Phil 2002-0359
The experiments were conducted at Sugar Regulatory Administration-LGAREC, La Granja, La Carlota City from February 2011 to February 2014. The study aims to evaluate the ratoon performance of the new sugarcane HYVs, Phil 99-1793, Phil 2000-0791, Phil 2000-2569, Phil 2001-0295 and Phil 2002-0359. The treatments were arranged in Randomized Complete Block Design using 6m x 9m experimental plots, replicated four times (4x).
Plant cane tonnage did not vary among test varieties but data showed that Phil 2000-2569 obtained the highest cane tonnage (109.61 TC/Ha) and lowest cane tonnage was noted in Phil 2001-0295 (84.78 TC/Ha)
First ratoon crop showed that Phil 2000-0791 significantly obtained the highest cane tonnage (103.43) but result was comparable with Phil 2000-2569 (98.16 TC/Ha) and Phil 99-1793 (93.59 TC/Ha). Phil 2002-0359 had 83.49 TC/Ha, while Phil 2001-0295 consistently gave the lowest cane tonnage (66.46 TC/Ha). It was noted that there was a reduction of 10.73% in the mean value of cane tonnage. High cane tonnage of Phil 2000-0791 was due to its longer stalks compared to the other test varieties.
Second ratoon crop showed that Phil 2000-0791 consistently got the highest cane tonnage (89.27 TC/Ha) but statistically comparable with Phil 99-1793 (77.63 TC/Ha), and significantly higher than Phil 2000-2569 (73.75 TC/Ha), Phil 2002-0359 (55.52 TC/Ha) and Phil 2001-0295 with the lowest cane tonnage of 31.82 TC/Ha. There was a great reduction of about 34.22% in the mean value of cane tonnage. High cane tonnage of Phil 2000-0791 was likewise attributed to longer stalk per plot and most number of millable stalks per plot.
Sugar yield did not differ among varieties on the plant cane but differed in the first and second ratoon. Sugar yield had a mean value of 210.22 LKg/Ha in the plant crop while the first ratoon had a mean value of 197.51 thereby having a reduction of 6.05 percent. First ratoon crop showed that Phil 2000-0791 significantly produced the highest sugar yield of 231.73 LKg/Ha but statistically similar with Phil 2000-2569 (214.44), Phil 99-1793 (211.45) AND Phil 2002-0359 (193.87). The lowest LKg/Ha was still noted on Phil 2001-0295 (136.04 LKg/Ha).
Second ratoon crop likewise exhibited significant results in sugar yield among test varieties. Sugar yield had a mean value of 152.15 LKg/Ha and the reduction of 27.62 percent over the plant cane was obtained. Phil 2000-0791 consistently produced the highest sugar yield of 210.71 LKg/Ha, statistically similar with Phil 99-1793 with 181.10 LKg/Ha but significantly higher than the other test varieties. The lowest sugar yield was still observed in Phil 2001-0295 (67.55 LK/Ha).
Sucrose content of the plant crop significantly differed among test varieties with Phil 99-1793 obtaining the highest LK/TC (2.33), comparable with Phil 2000—0791 (2.20) and Phil 2002-2569 (1.91). Sucrose content of the plant crop had a mean value of 2.13 LKg/TC.
First ratoon crop LKg/TC ranged from 2.06 to 2.32 LKg/TC ranged from 2.06 to 2.32 LKg/TC with a mean value of 2.21, higher than the plant cane by 3.62 percent. It was noted that Phil 2002-0359 obtained the highest LKg/TC on the first ratoon (2.32), however statistically comparable with Phil 2000-0791 (2.25 LKg/TC), Phil 99.1793 (2.26 LKg/TC) and Phil 200-2569 (2.18 LKg/TC) but statistically higher than Phil 2001-0295 (2.06).
Second ratoon sucrose content ranged from 2.07 LKg/TC to 2.45 LKg/TC and had a mean value of 2.29 which was higher than the plant cane by about 6.99 percent. Phil 2002-0359 gave the highest LKg/TC (2.45), comparable with Phil 99-1793 (2.33) and Phil 2000-0791 (2.37 and statistically higher than Phil 2000-2569 (2.24) and Phil 2001-0295 (2.07).
Phil 2000-0791 is considered a good ratooner, giving the highest cane and sugar yield and had a lesser percent yield reduction when compared to other test varieties in the first and second ratoon, however it is best recommended up to the second ratoon only.
- Effect of Different Foliar Fertilizers on Canepoint Production (Cutback) of Phil 2003-1389 Micropropagated Plantlets
The study was conducted at Sugar Regulatory Administration (SRA), La Granja Agricultural Research and Extension Center (LGAREC) from October 2012 to October 2013.
Hardened micropropagated plantlets of Phil 2003-1389 were planted in the field and applied with different foliar fertilizers and evaluated for its canepoint production.
No significant differences were observed on the plant height and tiller number of Phil 2003-1389 applied with different foliar fertilizers.
Although not significant, the highest plant height was observed on Humipure Nitrogen (T8) both on 3 and 6 months after planting (MAP) at 77.4 cm and 199.6 cm, respectively. The lowest plant height was at Better Yield (T5) and IBG (T4) at 53.4 and 144.8 cm for 3 and 6 months after planting, respectively.
For ratoon crop, the highest plant height was obtained on the control (T1) at 128.0 cm and 240.o cm FOR 3 TO 6 MAR, respectively.
At 3 and 6 MAP, the highest tiller number was both observed at T8 and 3.8 and 3.0, respectively. For ratoon crop, all treatments has equal number of tillers (4) both at 3MAR and 6MAR except at T7 for 6 MAR which has 5 number of tillers.
Plant cane canepoint production of Phil 2003-1389 was highly significant among treatments. Highest canepoin production was obtained at Humipure Nitrogen (T8) at 53.0 lacsa/hectare and the lowest was obtained at Better Yield (T5) at 22.0 lacsa/hectare.
For ratoon crop, no significant differences were observed among treatments for canepoint production. Although not significant, the highest number of canepoints was obtained on T8 (58.0 lacsa/hectare while the lowest was obtained at 48.0 lacsa/hectare both at T4 and T5.
Sugar rendement (LKg/TC) of Phil 99-1793 were comparable among the different treatments. Generally canes applied with mycoplex gave higher LKg/TC than canes applied with endoroots.
Phil 99-1793 applied with mycoplex gave an increase in sugar yield by 44.55 LKg/Ha compared with the unfertilized control.
Mycoplex plus the recommended rate gave higher sugar yield than the recommended rate with a difference of 6.57 LKg/Ha. Likewise application of mycoplex + recommended NK gave more in sugar by 20.35 LKg/Ha over the recommended NK.
Phil 99-1793 highest sugar yield of 274.91 LKg/Ha was obtained on 50% P + 100% NK + 50 kgs/ha mycoplex. Improvement in sugar yield against 50% recommended P and 100% NK without mycoplex was 31.75/Ha.
Application of endoroots increased the sugar yield by 31.19 LKg/Ha over the unfertilized control.
Endoroots added to recommended rate NK + 50% P improved the sugar yield by 7.46 LKg/Ha compared with RR NK + 50% P.
Recommended rate NK without P + endoroots gave an increase of 23.59 LKg/Ha against recommended rate NK.
Application of mycoplex alone gave higher sugar yield of 13.36 LKg/Ha compared with endoroots alone.
Improvements in TC/Ha and LKg/Ha of Phil 99-1793 was due to improvement in all parameters with the application of mycoplex and endoroots.
- Efficacy Trial On The Use Of High Yield (18-6-0) On Sugarcane (Cooperative study between PHILVIN and SRA)
The study was conducted at Sugar Regulatory Administration (SRA), La Granja Agricultural Research and Extension Center (LGAREC), La Carlota City, Negros Occidental in a Guimbalaon sandy loam soil from November 2012 to November 2013. This was laid out in a randomized complete block design replicated four times, (1) to evaluate the growth and yield response of sugarcane to application ofHigh Yield, (2) to evaluate the combined effect of high yield, urea, better yield and microsil; and (3) to evaluate the economics of using High Yield fertilizer on sugarcane.
Application of 11 bags/ha High Yield fertilizer (HY)+ 4 bags/ha urea + 1 kg/ha better yield (BY) + 4 kgs/ha microsil gave the highest sugar yield of 238.06 LKg/Ha with a difference of 70.64 LKg/Ha against the control (167.42 LKg/Ha) and 20.92 LKg/Ha against the recommended rate (217.14 LKg/Ha).
Application of 15 bags/ha HY gave higher sugar yield of 208.24 LKg/Ha, a difference of 40.82 LKg/Ha against the control.
Addition of 15 bags/ha HY to one-half of the recommended rate gave 226.37 LKg/Ha, a difference of 25.02 LKg/Ha against one-half of the recommended rate alone (201.35 LKg/Ha).
Addition of 7.5 bags/ha HY to the recommended rate gave an increase of 15.66 LKg/Ha over the recommended rate alone (232.80 LKg/Ha vs. 217.14 LKg/Ha).
All fertilized canes gave slightly higher LKg/TC (2.15-2.21 LKg/TC) than the unfertilized (2.14 LKg/TC).
Application of 11 bags/ha High Yield fertilizer (HY) + 4 bags/ha urea + 1 kg/ha better yield (BY) + 4 kgs/ha microsil gave the highest tonnage of 109.79 TC/Ha, a difference of 30.89 TC/Ha against the control and 8.42 TC/Ha against the recommended rate (78.90 and 100.87 TC/Ha, respectively).
Application of 15 bags/ha HY gave higher tonnage of 96.49 TC/Ha, a difference of 17.59 TC/Ha against the control.
Addition of 15 bags/ha HY to one-half of the recommended rate gave an increase of10.22 TC/Ha over tonnage obtained from one-half of the recommended rate alone (92.41 TC/Ha).
On the other hand, addition of 7.5 bags/ha HY to the recommended rate gave an increase of 7.21 TC/Ha over the recommended rate alone (108.08 TC/Ha vs. 100.87 TC/Ha).
Highest net benefit per hectare in the amount of PhP 110,564.42 was obtained on the application of 11 bags/ha High Yield + 4 bags/ha urea + 1 kg/ha better yield + 4 kgs/ha microsil; next highest net benefit of PhP 104,159.34 was obtained on the recommended rate of fertilizer + 7.5 bags/ha High Yield; third was obtained on the recommended rate of fertilizer (PHP102,813.37); and, the lowest was on the control.
- Effect Of New Neb Formula (Neb-F) And (Neb-Fa) On The Growth And Yield Of Sugarcane (Cooperative study between AGMOR INC. and SRA)
The study was conducted at Sugar Regulatory Administration (SRA), La Granja Agricultural Research and Extension Center (LGAREC), La Carlota City, Negros Occidental in a Guimbalaon clay loam soil from December 2012 to December 2013. This was laid out in a randomized complete block design (RCBD) replicated four times, (1) to evaluate the efficacy of new NEB formula on the growth and yield of sugarcane; and (2) to determine if the experimental formulas NEB-F and NEB-FA for sugarcane is more effective than the standard NEB formula
Tonnage yield (TC/Ha) of Phil 99-1793 applied with the different formulation of NEB (NEB SC 107) gave higher tonnage yield than the control without NEB. The tonnage difference ranged from 3.66 to 5.72 TC/Ha.
Rendement (LKg/TC) of Phil 99-1793 were observed to be lower in all NEB treated canes compared with the untreated.
Sugar yield (LKg/Ha) of Phil 99-1793 applied with the different formulation of NEB gave higher sugar yield than the control without NEB. Among the NEB treated canes, highest sugar yield was obtained on NEB Formula B + NEB SC Powder # 2 (269.07 LKg/Ha) while the lowest was at Standard NEB-SC (261.33 LKg/Ha). Canes without NEB had 257.43 LKg/Ha. Yield difference of NEB treated canes against the control without NEB ranged from 3.9 LKg/Ha to 11.64 LKg/Ha.
Phil 99-1793 treated with NEB SC 108 gave higher tonnage than the control without NEB. Among the NEB treated canes highest tonnage (110.98 TC/Ha) was observed on NEB FA (1000 ml/ha) while the lowest (106.47 TC/Ha) was observed on NEB F (800 ml/ha). The difference between the tonnage yield of NEB FA (1000 ml/ha and the control was 6.34 TC/Ha. The tonnage yield difference of NEB applied canes against the control ranged from 1.83 TC/Ha to 6.34 TC/Ha.
Sugar rendement of canes applied with standard NEB F SC (1000 ml/ha) was observed to be the highest (2.38 LKg/TC) while the lowest (2.30 LKg/TC) was observed on Standard NEB SC (800 ml/ha).
Sugar yield of all NEB treated canes were higher than the control (without NEB). Among the NEB applied canes standard NEB SC (1000 ml/ha) gave the highest LKg/Ha of 258.56 while the lowest was obtained on NEB F (800 ml/ha) with 247.51 LKg/Ha. The sugar yield difference of NEB treated canes against the control ranged from 2.53 LKg/Ha to 13.58 LKg/Ha.
- Pollination, Sowing and Seedling Care, Phil 2013 Series
During the 2013 breeding season, flowering of parental clones and varieties was early and of short duration with peak of full emergence observed on the last week of October 2013.
Pollination work which started October 16 and ended November 25, 2013, utilized 88 female and 79 male selected parents. A total of 401 arrows from 285 biparental cross combinations were pollinated. From these, 398 arrows from 285 biparental crosses were harvested with three arrows destroyed.
The sowing of fuzz in 285 seedboxes from November 16 to December 12, 2013 resulted in the germination of seedlings in 283 biparental crosses consisting of 396 arrows. Medium to very good germination was observed in 82.69 percent of the crosses. Overcrowded seedlings in 117 biparental crosses were pricked in 375 seedboxes.
Seedlings in 658 seedboxes were given proper care and management like regular watering, fertilization, spraying of insecticides and fungicides, trimming of leaves, weeding and cultivation prior to transplanting in June and July 2014.
- Planting Methods and Vermicast Fertilization to Improve Cutback Production of Phil 2000-2569
Production and distribution of high yielding varieties is mainly through the use of cutback. This could be one of the reasons for under-supplied of planting materials specifically of newly released varieties. A study on vermicast fertilization and planting methods was conducted at SRA LGAREC on April 2013 t April 2014. Phil 2000-2569 variety was used. The study was laid out with two fertilizations schemes (10 tons vermicast +1/2 recommended rate of inorganic fertilizer and recommended rates of inorganic fertilizers) and five planting methods (hole planting at 6 setts per hole, hole planting at 8 setts per hole, zigzag, double and single planting) to find out desirable planting method and fertilization scheme for cutback production of Phil 2000-2569. Results showed that Phil 2000-2569 produced higher number of cutback with double planting than other planting methods. Fertilization using vermicast did not significantly affect cutback production of test variety.
- Propagation I, Phil 2010 Series
Thirty promising Phil 2010 series clones from the Preliminary Yield Test were planted and propagated in SRA-LGAREC from April 2014 to October 2014 in preparation for Propagation II. The canepoints produced were further propagated to increase number of planting materials needed for Ecologic test in different locations nationwide.
- Propagation III, Phil 2009 Series
The selected varieties of Phil 2009 Series from the Preliminary Yield Test were planted and propagated in SRA-LGAREC from June 2014 to December 2014 in preparation for the Ecologic Test in different locations nationwide. The 10 varieties selected as entries to the Ecologic Test were” Phil 2009-1963, Phil 2009-1867, Phil 2009-1969, Phil 2009-0125, Phil 2009-1567, Phil 2009-0037, Phil 2009-2147, Phil 2009-0097, Phil 2009-0919 and Phil 2009-0015.
- SVIP Germplasm Collection, Characterization and Maintenance
A total of 1,299 sugarcane varieties were maintained in the Germplasm Collection for the year 2014. Eight new Phil varieties from the Ecologic Test were added to the collection; however, ten (10) IPBGR accessions were not able to survive after replanting. Eight hundred sixteen (816) clones/varieties were partially characterized agronomically. Brix, stalk diameter, number of tillers and degree of flowering were the data gathered on the characterization to primarily to provide necessary information for selection of parent materials for the Pollination, Sowing and Seedling Care, Phil 2015 Series Project.
- Mass Production of Trichogramma Strips for the Control of Borers
The mass production of Trichogramma as a potential biological control agent against sugarcane stem borers of the SRA LGAREC gave a significant impact to the sugarcane planters as well as to rice, corn and vegetabe farmers not just only in the province of Negros Occidental but in Negros Oriental and Panay Region for the past years of the Trichogramma species maintained, T. chilonis, the egg parasitoid to stem borers of sugarcane in themost in demand by clients followed by T. japonicum, T. bactrae and T. evanescens for Lepidopterous pests of rice, corn and vegetables.
The increasing present demand of sugarcane planters and farmers is an evidence of its significance as biological control agent. Trichogramma is an egg parasitoid that kills the pest before it can cause any damage to the plant.
From January 2014 to December 2014, the project produced 32,498 strips of Trchogramma. A total of 24, 892 strips were distributed to clients as follows: sugarcane planters – 21,442 strips; rice farmers – 1,571 strips; sugarcane researchers – 1,864 strips and vegetable farmers – 15 strips. The rest of the strips were used as starters.
- Sugarcane Disease Garden as Source of Inocula for Resistance Trials
Seven varieties namely; Phil 6111, Phil 7464, Phil 7779, Phil 8839, Phil 8013, Phil 56226, VMC 86550 and mixed clones were propagated in an area of 5,000 sq.m. from January 2014 to December 2014. These were maintained as ratoon plants. These varieties served as resistance trials to smut, downy mildew, yellow spot and leaf scorch.