Bread wheat varieties as influenced by different nitrogen levels.

被引：57

作者：

Hussain I. ^{[1
]}

Khan M.A. ^{[1
]}

Khan E.A. ^{[1
]}

机构：

[1] Department of Agronomy, Faculty of Agriculture, Gomal University, Dera Ismail Khan NWFP

来源：

Journal of Zhejiang University SCIENCE B | 2006年 / 7卷 / 1期

关键词：

Wheat; Nitrogen; Grain yield; Protein; A; S51;

D O I：

10.1631/jzus.2006.B0070

中图分类号：

学科分类号：

摘要：

Experiment was conducted to determine the effect of different nitrogen levels on four bread wheat varieties (Triticum aestivum L.) viz. Inqilab-91, Daman-98, Dera-98 and Punjab-96 at Gomal University, Dera Ismail Khan (NWFP), Pakistan during 2000 approximatey 2001. The experiment was laid out in split plot design having four replications using a net plot size of 2 m x 5 m. Nitrogen doses used were 0, 50, 100, 150 and 200 kg/ha. The results showed that different nitrogen levels had significant effects on plant height, total number of plants/m(2), number of grains/spike, number of spike/m(2), spike weight, biological yield, grain yield and grain protein content. Maximum plant height, total number of plants/m(2), number of spikes/m(2), spike weight, biological yield and grain protein content were observed at 200 kg N/ha. Among wheat varieties Daman-98 had maximum plant height, spike weight, grains/spike, 1000-grain weight, biological yield and grain yield. Inqilab-91 had heavier grains and the most grain protein content, while Dera-98 had the maximum plant population and spikes/m(2). Grain yield and biological yield were statistically similar at doses of 150 kg N/ha and 200 kg N/ha. However, dose of 200 kg N/ha, compared to dose of 150 Kg N/ha, significantly increased the protein content.

引用

页码：70 / 78

页数：8

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