Environmental Effects on Associations among Nitrogen Use Efficiency Traits in Wheat

被引：9

作者：

Gorjanovic, B. ^{[1
]}

Kraljevic-Balalic, M. ^{[1
]}

Jankovic, S. ^{[2
]}

机构：

[1] Fac Agr, Novi Sad 21000, Serbia

[2] Inst Sci Applicat Agr, Belgrade 11000, Serbia

来源：

CEREAL RESEARCH COMMUNICATIONS | 2010年 / 38卷 / 01期

关键词：

wheat; nitrogen use efficiency; yield; trait association-by-environment biplot; RED WINTER-WHEAT; DRY-MATTER; GENETIC-VARIATION; GRAIN-YIELD; PROTEIN; REMOBILIZATION; TRANSLOCATION; ACCUMULATION; ASSIMILATION; BREAD;

D O I：

10.1556/CRC.38.2010.1.15

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Nitrogen use efficiency parameters of twelve bread wheat cultivars were studied in nine environments comprised of three nitrogen applications tested over three years. An environment-by-trait association biplot and a trait-association by environment biplot were applied to understand environmental effects on these traits and relationships among them. The following trait associations were relatively stable across environments: negative associations of straw nitrogen content vs. nitrogen remobilization efficiency, straw nitrogen content vs. nitrogen harvest index and a positive association of nitrogen remobilization efficiency vs. nitrogen harvest index. The selection of genotypes with a high nitrogen harvest index and nitrogen remobilization efficiency could be used in the development of cultivars with desired nitrogen use efficiency. A low straw nitrogen content can also be used as a reliable and cost-effective indicator in the selection of genotypes with high nitrogen use efficiency.

引用

页码：146 / 153

页数：8

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