Field screening of chickpea genotypes for drought resistance.

Book Title: NA
Year Published: 2008
Month Published: NA
Author: Parameshwarappa, S. G. ; Salimath, P. M.
Book Group Author: NA

A study was conducted to determine the simple and precise field technique to detect genotypic differences in drought resistance and to quantify yield loss in 12 chickpea genotypes (ICC 13124, ICC 12654, ICC 1205, ICC867, ICC4182, ICC 5504, ICC 1422, ICC 2969, ICC 11121, ICC 9848, ICC 4958 and ICC 10448) during the rabi season of 2005-06 in Dharwad, Karnataka, India, under moisture stress (I0) and irrigated conditions (I1). Among the twelve genotypes, ICC 13124 showed the highest yield levels under moisture stress (990 kg/ha) as well as in irrigated conditions (1220 kg/ha). It recorded the highest drought tolerance efficiency (72.46%), least drought susceptibility index (0.76) and reduction in seed yield (18.86%) due to moisture stress. More importantly, it maintained the highest values of harvest index under moisture stress (46%) as well as irrigated conditions (52.6%). ICC 4958, ICC 13124 and ICC 867 maintained very low values of membrane injury index. Cultivar ICC 13124 showed the least reduction in dry matter accumulation in roots, leaves and stems due to moisture stress at flowering. Based on total dry matter, hardly 7.8% reduction was noticed due to stress in ICC 13124. ICC 13124, ICC 1422 and ICC 4958 showed minimum reduction in leaf area due to stress at flowering. At podding, ICC 13124 and ICC 4958 showed minimum reduction in leaf area. ICC 4958 and ICC 10448 showed minimum difference in RLWC under moisture stress and irrigated conditions at the flowering and podding stages.

Pages: 113 - 114
Volume: 21
Number: 1
Journal: Karnataka Journal of Agricultural Sciences
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 0972-1061

chickpeas, crop growth stage, crop yield, drought, droughtresistance, dry matter, dry matter accumulation, genetic variation,genotypes, harvest index, irrigation, leaf area, leaves, roots,screening, seeds, stems, susceptibility, water stress, yield losses,India, Karnataka, Cicer arietinum, Cicer, Papilionoideae, Fabaceae,Fabales, dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes,South Asia, Asia, Developing Countries, Commonwealth of Nations, India,drought tolerance, genetic variability, genotypic variability, genotypicvariation, Mysore, screening tests, watering, Field Crops (FF005) (NewMarch 2000), Plant Breeding and Genetics (FF020), Plant Production(FF100), Environmental Tolerance of Plants (FF900)

Source: EBSCO
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