Physiological traits contributing to grain yields under drought in black gram and green gram.

Book Title: NA
Year Published: 2006
Month Published: NA
Author: Sudhakar, P. ; Latha, P. ; Babitha, M. ; Prasanthi, L. ; Reddy, P. V.
Book Group Author: NA

Ten genotypes each of black gram (LBG20, LBG623, MBG201, MBG207, MBG211, MBG212, MBG213, MBG214, PBG32 and PBG107) and green gram (MGG351, MGG336, LGG487, LGG498, LGG502, LGG450, LGG460, LGG492, LGG494 and LGG521) were evaluated for traits contributing to water use efficiency in a field experiment conducted during rabi 2004/05, in Andhra Pradesh, India. Moisture stress was imposed on both crops at the time of flowering, i.e. 40 days after sowing (DAS) until harvest in black gram (80 DAS) and green gram (75 DAS). Under terminal moisture stress conditions, there was a significant reduction of SPAD chlorophyll meter reading (SCMR) and specific leaf area (SLA) in black gram and green gram genotypes. Black gram genotypes PBG107, LBG20 and MBG207 and green gram genotypes MGG336 and MGG351 showed higher SCMR and lower SLA under stress. Significant inverse relationship was observed between SLA and SCMR in black gram, while no correlation was observed in green gram. Significant positive relationships were observed between seed yield and SCMR in black gram and green gram under moisture stress, indicating that SCMR could be used as a screening tool for grain yield under drought conditions.

Pages: 391 - 396
Volume: 11
Number: 4
Journal: Indian Journal of Plant Physiology
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 0019-5502

black gram, crop yield, drought, genotypes, green gram, leafarea, plant water relations, seeds, water stress, water use efficiency,Andhra Pradesh, India, Vigna mungo, Vigna radiata, India, South Asia,Asia, Developing Countries, Commonwealth of Nations, Vigna,Papilionoideae, Fabaceae, Fabales, dicotyledons, angiosperms,Spermatophyta, plants, eukaryotes, mung bean, Field Crops (FF005) (NewMarch 2000), Plant Breeding and Genetics (FF020), Plant Water Relations(FF062), Plant Production (FF100), Environmental Tolerance of Plants(FF900)

Source: EBSCO
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