Abstract:
The experiment was conducted at the experimental field of Sher-e-Bangla
Agricultural University, Dhaka during the period from December 2008 to April
2009 to observe the influence of different genotypes on the growth and yield of
late sown wheat (Triticum aestivum L.). Normal irrigation was provided to
observe the influence of late sown wheat experimentally. The experiment
comprised of 19 wheat varieties such as BL 1883, BAW-1104, BAW-1064,
Sonora, Sourab, Prodip, Fang 60, Gourab, BAW-9 17, IVT-9, Sufi, Shatabdi,
Kanchan, Pavan-76, JYT-lO, Bijoy, BL-1022, Kalyan Sona and BAW-105l.
The experiments was laid out in Randomized Complete Block Design (RCBD)
with three replications. There were 57 plots for the Experiment having the size
of 2 m x 1.5 m. plots. 19 genotypes of wheat were randomly distributed in the
plots. Data on different growth characters and yield attributes were recorded to
find out the suitable variety in response to the effect of high temperature stress
for late sowing with normal irrigation. All the genotypes were affected due to
high temperature but Gourob was the less affected variety due to late planting.
Plant height, no of leaf/plant , leaf area index which were higher than other
genotypes . Among the 19 genotypes Gourob showed better performance in
respect of ear length, 1000 seed weight ,dry mater contend plant,shoot dry
matter content. Due to high temperature all the genotypes were affected but
Gourob showed higher yield (2.55 ton/ha)than other genotypes and IVT -10
showed lower yield (1 .47tonlha). In the Experiment among the wheat genotypes
Gourab was superior over the others in case of late sowing and IVT- 10 was
severely affected by high temperature in terms of different growth and yield
contributing characters.
