INFLUENCE OF DIFFERENT GENOTYPES ON THE GROWTH AND YIELD OF LATE SOWN WHEAT (Triticum aestivum L.)

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.