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EFFECT OF SOIL AND CLIMATIE CONDITIONS ON YIELD-RELATED COMPONENTS PERFORMANCE OF SPRING WHEAT ( L.) VARIETIES IN THE NORTHERN BANGLADESH

2012. №2, Стр. 77-86

Акбар Хоссаин  - аспирант, Астраханский государственный университет, tanjimar2003@yahoo.com

Лозовская Марина Вячеславовна - доктор биологических наук, профессор, Астраханский государственный университет, tanjimar2003@yahoo.com

Зволинский Вячеслав Петрович - доктор сельскохозяйственных наук, профессор, Прикаспийский научно-исследовательский институт аридного земледелия, www.pniiaz.ru

Хайме А. Тейшейра да Силва  - Факультет сельского хозяйства и Высшая школа сельского хозяйства, Кагава Университет

Heat stress is one of the most important constraints in present and also in future wheat production in the world, especially in hot environment, where winter is very short. In this context, 8 existing wheat genotypes (Sourav, Gourab, Shatabdi, Sufi, 'Bijoy, Prodip, BARI Gom-25 and BARI Gom-26) of Bangladesh were evaluated under four sowing conditions (early heat stress (sown on 8 November), optimum sowing condition (22 November), late heat stress (13 December) and extremely late heat stress (27 December)). From experimental results, it was noted that yield-related components of different genotypes showed differentiation in different stress condition, due to genetic makeup and heat tolerant capacity. As compared with optimum sowing, Sufi, BARI Gom-26 and Shatabdi performed better and Gourab performed the worst, followed by Sourav in stress conditions. So, Sufi, BARI Gom-26 and Shatabdi may be used as heat-tolerant materials to develop heat-tolerant cultivars.

Ключевые слова: wheat, varieties, soil-climatic conditions, northern Bangladesh

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