Morphological Quantitative Characterization of Wheat (Triticum aestivum L.) Genotypes under Normal and Late Sown Conditions

Abstract

A field Experiment was conducted at research farm of Department of Seed Science and
Technology, CCS HAU, Hisar, during Rabi 2016-17 to study “Morphological quantitative characterization
of wheat (Triticum aestivum L.) genotypes under normal and late sown conditions”. The 30 wheat genotypes
(WH 157, WH 283, WH 542, WH 711, WH 1021, WH 1025, WH 1080, WH 1105, WH 1124, WH 1127, WH
1142, WH 1202, WH 1221, WH 1316, WH 1320, WH 1322, C 306, P 13729, DBW 88, DBW 90, DPW 621-
50, HD 2967, HD 3059, HD 3086, KRL 19, KRL 210, PBW 550, PBW 723, PBW 725, RAJ 3765) were
grown at two different sowing dates i.e. normal (6th Nov. 2016) and late (24th Dec. 2016) in Randomized
Block Design (RBD) with three replication. The quantitative traits decreased significantly under late sown
conditions as compared to normal sown condition. None of the genotype had very long or very short awns in
normal sown conditions. But, in late sown condition one genotype WH 542 was noted very short awns length.
Five genotypes (PBW 723, PBW 725, WH 1105, WH 1127 and P 13929)had long ear length in both sowing
conditions. The beak length significantly increased with delay in sowing. Among all the genotypes, only one
genotype (WH1322) had short, and two genotypes (PBW 550 and WH 1316) had very long lower glume beak
length. In late sown condition, most of the genotypes reduced their days to heading, anthesis and maturity
were completed their life cycle early to combat the stress. The pattern of days of anthesis was followed by
days to maturing. The environment and temperature had significant effect on physiological maturity of
crop. In normal sown condition, all the genotypes had higher number of spikelets per plant as compared to
the late sown condition. The seed yield of wheat genotypes was influenced by the time of sowing. The higher
seed yield of wheat was produced under normal sown conditions