Micropropagation and characterization of soybean genotypes showing differential fertility under different temperature and photoperiod regimes
KrishiKosh
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Title |
Micropropagation and characterization of soybean genotypes showing differential fertility under different temperature and photoperiod regimes
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Creator |
HUYNH NGOC HAI
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Contributor |
S.K. Lal)
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Subject |
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Description |
T-8402
The present study was undertaken to characterize the soybean lines which showed differential fertility under different photo-period and temperature situation. A set of 32 lines were selected among a set of 244 lines studied earlier. During springsummer season, flowering was observed in all the 32 soybean lines screened. However, pod formation was observed in only 24 genotypes. Flowering was delayed by an average of 21 days as compared to flowering during the main season, i.e., kharif season. The average pollen fertility was low (0.38 to 22.05%). Genotypes which showed no pod formation showed very high sterility (0.91 to 6.85%). Sensitivity to both photo-period (delay in days to flower) and heat (pollen sterility) was responsible for poor pod formation during spring-summer season. One line (TNAUS56) showed no deviation in days to flowering and the percentage gain in response rate was found to be very low (2.38). The feasibility of these lines to be used as EGMS lines was not clearly established. It needs further studies to establish a relationship between pollen sterility and photo period and or temperature. IARI, |
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Date |
2016-11-21T13:05:47Z
2016-11-21T13:05:47Z 2011 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/86638
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Format |
application/pdf
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Publisher |
IARI, DIVISION OF GENETICS
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