Spring wheat genotypes exhibit physiological and yield potentiality under late sowing conditions in Bangladesh

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Research Paper 01/02/2021
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Spring wheat genotypes exhibit physiological and yield potentiality under late sowing conditions in Bangladesh

Md. Monwar Hossain, Mohammad Nur Alam, Md. Zaherul Islam, Md. Sariful Bin Ekram, Rabiul Islam, Md. Atiquzzaman
Int. J. Agron. Agri. Res.18( 2), 1-7, February 2021.
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To combat the consequences of climate changes is the great challenges in crop production by mitigating biotic and abiotic factors’ effects. Fifty genotypes including control were evaluated at the research farm, Headquarter station, Dinajpur and Regional Station, Jassore of the Bangladesh Wheat and Maize Research Institute. Seeds were sown at Dinajpur and Jassore on 22 December and 18 December, respectively in the Rabi season of 2016-17. Based on the days to heading, days to maturity, plant height, thousand grain weight (TGW) and yield performance; five genotypes exhibited good performance. At Dinajpur days to heading of five genotypes was longer than Jassore, but days to maturity of the genotypes was shorter at Dinajpur than Jassore. TGW of the genotypes at Jassore was more than Dinajpur. The average yield of the genotypes was more at Jassore than Dinajpur. At Jassore the highest yield was exhibited by the Genotype (Gen) 42 (4.23t ha-1) compared to Shatabdi variety (3.89t ha-1), and the lowest by Gen 44 (3.43t ha-1). On the other hand, Gen 12 demonstrated the maximum yield (3.86t ha-1) at Dinajpur compared to Gen 44 (3.51t ha-1), and the lowest by Gen 45 (2.69t ha-1). The earlier sowing of the genotypes at Jassore than Dinajpur, environmental and genetical factors might influence the physiology and yield performances of the genotypes. Need to conduct further trials to search out the final performance of the Gen 12 and Gen 42 which may be the promising variety to mitigate the consequences of climate changes in Bangladesh.


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