MORPHOLOGICAL TRAITS DETERMINING DROUGHT. TOLERANCE IN MAIZE (ZEA MAYS L.)

Article Id: ARCC3079 | Page : 190 - 193
Citation :- MORPHOLOGICAL TRAITS DETERMINING DROUGHT. TOLERANCE IN MAIZE (ZEA MAYS L.).Indian Journal Of Agricultural Research.2001.(35):190 - 193
Sain Dass, Pawan Arora, Meena Kumari and Dharam Pal
Address : CCS HAU, Regional Research Station, Karnal-132001, India

Abstract

160 lines of maize comprising of inbreds and hybrids were evaluated for the drought toler ance. Observations on different morphological parameters including anthesis- silking interval (ASI), plant height, leaf senescence, leaf rolling, and grain yield were recorded by limiting irrigation at different crop growth stages i.e. (1) at knee height (2) at grain filling and (3) before flowering and (4) at both flowering and grain filling were compared with normal irrigated crop (control). Differ ent morphological traits were computed with yield accounting for the drought tolerating ability. Plant height was affected severely when irrigation was restricted at knee height stage. It was observed that in majority of the genotypes screened anthesis-silking-interval increases during stress and severe stress conditions. In general it was observed that hybrids were more tolerant as compared to inbreds. Hybrids 1334-3 x 645, 610-2 x 295 and 1352 x 1344 with shorter ASI could resist the moisture stress to some extent.

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