Ali A. JAHANGIROV

The Study of the Sum of Active Temperatures Affecting Autumn Bread (Triticum aestivum L.) Wheat Under Dry Rainfed Conditions

ISSN: 2149-1275
Yayın Aralığı: Yılda 2 Sayı
Başlangıç: 2015
Yayıncı: Bitki Islahçıları Alt Birliği

The sum of active temperatures affecting 21 autumn bread wheat genotypes with contrasting morphophysiological properties during the flowering and grain filling phases after earing has been studied under dry rainfed conditions in 2013-2014, during vegetation periods characterized by different hydrometeorological parameters. The functioning period of flag leaves in Murov 2, Gyrmyzy gul-1 and Zirva 85 genotypes appeared to be longest and they had higher sums of active temperatures (SAT) compared with other varieties during both years. Qyzyl bugda, Layagatli-80 and 12 IWWYT № 6 varieties had quite high higher sums of active temperatures values in 2013, but they showed lower results under unfavorable climatic conditions in 2014. There were a positive correlation between SAT and productivity at r=0.55**, and a negative correlation between earing dates and higher sums of active temperatures at r=-0.41** during both years.

Keywords:

Triticum aestivum L., morphophysiological properties, productivity dry rainfed conditions,

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