RDE Abstract of Completed Research
Variety Improvement / Plant physiology
Free-proline accumulation for drought tolerance of sugarcane varieties (2002)
- Alicia Burcer, Ma.
Vina Serrano and Rufo Delos Reyes
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- The drought tolerance of the sugarcane high
yielding varieties (HYVs) was evaluated based on free-proline
accumulation.
- Low soil moisture condition increased free-proline
accumulation in sugarcane leaves.
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- The 30-day moisture stress duration when
the sugarcane plants were 5 months old was the critical sampling
period for free-proline analysis.
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- Phil 8013, Phil 90-1237, Phil 92-0051 and
Phil 91-1091 accumulated significantly higher free-proline than
the other test varieties.
- Varieties with high free-proline accumulation
produced high cane tonnage and sugar yield
Growth
and yield responses of sugarcane varieties to highly acidic and
saline soil conditions (2000)
- Benjamin Manlapaz
and Oscar Quilloy
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- The growth and yield performance of eight
sugarcane varieties grown on acidic Angeles sandyloam at pH 4.2
and saline Sibul clay at pH 7.5 under the greenhouse and on acidic
Angeles sandy loam in the field were evaluated. Phil 8583 and
Phil 8839 performed better than the other test varieties in acidic
Angeles sandyloam soil in the green house while Phil 8839, Phil
8583, Phil 7544 and Phil 7228 produced high cane and sugar yields
in the field test. Under saline condition, Phil 8839, Phil 8583
and Phil 8361 are the recommended sugarcane varieties.
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Leaf and root tissue analysis
for yield correlation on some sugarcane varieties (1998)
- Alicia Burcer, Ma.
Vina Serrano and Rufo Delos Reyes
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- Leaf and root tissue samples of eight sugarcane
varieties were analyzed for N, P, K, Ca and Mg at 4, 6 and 9
months after planting. The quantified amount of the elements
in the plants were correlated with the corresponding yield.
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- Significant correlation occurred on % moisture
and % leaf and root N and K against yield. High yielding varieties
and clones were found to be more efficient in absorbing moisture
and mineral nutrients.
The leaf and root tissue analysis was found to be useful for
early selection of high yielding varieties and clones in the
breeding program.
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