Genotype × environment interaction for moisture stress reaction in winter maize.

Book Title: NA
Year Published: 2006
Month Published: NA
Author: Singh, S. P. ; Jha, P. B.
Book Group Author: NA

The genotype × environment interaction in 10 diverse parents and 45 F1s of winter maize under 4 variable environments (early and late sowing; and with or without moisture stress) was evaluated in Bihar, India. Sowing was done on 2 November (early) and 2 December 2000 (late). Moisture stress was created by reducing the number of irrigations to one, which was supplied at knee-height stage. Twelve yield parameters were studied: anthesis-silking interval, tassel condensation, tassel vigour index, plant height, ear height, effective ear length, ear girth, grain filling percentage, kernel row number/ear, 500-grain weight, harvest index and grain yield. Significant interaction was observed due to genotype × sowing date × moisture regime for tassel condensation, ear height, effective ear length, 500-grain weight and grain yield. The following crosses were identified as suitable for early and late sowing under stressed and non-stress moisture conditions: G15C12 MH 148U-1-1-1-6-3-BB × CM 117, Pop 27-S4-4U-1-3 × Pop 147 (EEY DMR) S1-117-3 and EEY DMR S1-3-1-1-2-3 × CML 117. The following responded better than the others to late sowing and moisture stress: G15C12MH 148U-1-1-1-6-3-B8 × Pop 27-S4-4U-1-3 and Pop 27-S4-4U-1-3 × CML 117.

Pages: 486 - 489
Volume: 2
Number: 2
Journal: International Journal of Agricultural Sciences
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 0973-130x

crop yield, drought resistance, genetic diversity, geneticvariation, genotype environment interaction, genotypes, harvest index,hybrids, irrigation, maize, plant height, plant water relations, sowingdate, water stress, yield components, Bihar, India, Zea mays, Zea,Poaceae, Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, India, South Asia, Asia, Developing Countries, Commonwealthof Nations, corn, drought tolerance, genetic variability, genotypicvariability, genotypic variation, watering, Field Crops (FF005) (NewMarch 2000), Plant Breeding and Genetics (FF020), Plant Production(FF100), Environmental Tolerance of Plants (FF900), Soil WaterManagement (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management]

Source: EBSCO
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