Recosideration Of Grain Sample Size And Its Effect On Grain Mean Weight For Some Bread And Durum Wheat Varieties | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 14, Issue 2, September 2014, Pages 96-101 | ||
| Authors | ||
| Mohamad Abdulwahab Al-Nori; Arshad Thanoon Al- Niaymi | ||
| Abstract | ||
| A laboratory experiment was conducted in Field Crop Department in the Agriculture and Forestry College, University of Mosul, to study the effect of number of the grains in the samples for evaluating seed weight of eight varieties (four bread wheat and four durum wheat).Grains of each variety were divided into10 groups beginning with 100 grains then with equal interval till 1000 grains. The results illustrated that the grain weight affected significantly by the No. of grain in a sample at 1% for Iz66, Doma1 and Sham9, and at 5% for Sham6, Icsad65 and Om'Rabi. Coefficient of determination (R2) for Doma1 and Sham9 were(94% and 91%) resp. R2 for Iz66 was (82%). The standard deviation showed that 675 grains for bread wheat and 650 grain for durum wheat (675 as a mean) were the best No. of grain to calculate the mean of grain weight for all cultivars. The result showed that the grain sample700 grains represents properly the weighted arithmetic mean for all varieties . | ||
| Keywords | ||
| Mean grain weight; Thousand grain weight; wheat | ||
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