Author/Authors :
AYKUT TONK, Fatma Ege Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey , İLKER, Emre Ege Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey , TATAR, Özgür Ege Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey , REÇBER, Ayşe Ege Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey , TOSUN, Muzaffer Ege Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey
Abstract :
Investigation on effects of different rain amount and distribution during 2007- 2008 and 2009-1010 on grain yield and some agronomic components of 9 advanced bread wheat lines was aimed in this study. Variation of rain distributions during the vegetation period between these two years effected grain yield, heading time, spike number per m^2 and hectoliter weight of investigated lines. Average yield of lines was 468.2 kg/da in 2007-2008 while 397.1 mm total rain amount was recorded whereas 261.9 kg/da grain yield was obtained in 2009-2010 with 895.6 mm total rain amount. Differences in rain distribution during phenological stages of plants in two growing seasons and especially rain amount in March and April were determined as the main reasons of this variation between two years. It was thus revealed that any dry period during these months could be led to significant yield loses in wheat. As a result of this study, we concluded that the grain yields of investigated bread wheat lines were affected by distribution of rains during phenological stages more than total rain amount in vegetation period.
NaturalLanguageKeyword :
Triticum aestivum L. , yield , rain amount , rain distribution
