EFFICACY OF DIFFERENT GENOTYPES ON THE GROWTH AND YIELD OF WHEAT (Trilicum aestivum L)

Abstract

The experiment was conducted to observe the efficacy of different genotypes on the growth and yield of wheat (Triticum aestivum L.) at the Agricultural Botany experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period from November 2008 to March 2009. The experiment comprised of 19 wheat genotypes such as BL- 1883, BAW- 1104, RAW- 1064, Sonora, Sourab, Prodip, Fang 60, Gourab, BAW-917, IVT-9, Sufi, Shatabdi, Kanchan, Pavan-76, IVT-lO, Bijoy, BL- 1022, Kalyan Sona and RAW- 1051. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The maximum days to starting emergence of seedling (6.00 days) was recorded from wheat genotype IVT- 10 and the lowest days to start emergence of seedling (4.67 days) for BL-1883, Sourab, BAU-917, Sufi, Shatabdi and Kanchan. At 30, 40, 50, 60, 70 DAS and harvest the longest plant (24.53 cm, 49.29 cm, 71.24 cm, 89.51 cm, 94.23 cm and 98.33 cm) was obtained from the wheat genotype Gourab and the shortest plant (19.80 cm, 41.88 cm. 62.19 cm, 76.12 cm, 77.63 cm and 80.96 cm) was recorded from the wheat genotype Pavan-76. The maximum number of fertile tillers per plant (5.50) was observed in the wheat genotype Gourab and the minimum number (3.63) was recorded from the wheat genotype Pavan-76. The maximum number of leaves per plant (6.27) was found from the wheat genotype Gourab, whereas the minimum number (4.83) was recorded from the wheat genotype Pavan-76. The highest leaf area of flag leaf (39.99 cm2) was obtained from the wheat genotype Gourab and the lowest (20.65 em2) was recorded from the wheat genotype Pavan-76. The longest ear (17.21 cm) was found from the wheat genotype Gourab and the shortest length (13.52 cm) was obtained from the wheat genotype Pavan-76. The maximum number of spikelets per spike (23.07) was found from the wheat genotype BL-1883, while the minimum number (17.97) was recorded from the wheat genotype TVT-10. The maximum number of filled grains per spike (56.47) was found from the wheat genotype Gourab, again the minimum number (29.77) was obtained from the wheat genotype Pavan-76. The highest weight of 1000 seeds (51.34 g) was recorded from the wheat genotype Gourab and the lowest weight (39.99 g) was found from the wheat genotype Pavan-76. The highest weight of grain per hectare (4.14 ton) was obtained from the wheat genotype Gourab and the lowest weight (3.43 ton) from the wheat genotype Pavan-76. The highest weight of straw per hectare (5.79 ton) was obtained from the wheat genotype Gourab, while the lowest weight (3.86 ton) was found in the wheat genotype Pavan-76.