Research on Nitrogen Efficiency of Different Genotypic Rapeseed(Brassica napus)
Year: 2015
Type: article
Abstract: A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province. The results showed that there were significant genotypic variations in grain yield,biological yield,harvest index,nitrogen efficiency and nitrogen responsiveness among different rapeseed varieties whatever nitrogen application rate. Five rapeseed varieties were classified into four different types based on their nitrogen efficiency and nitrogen responsiveness.Zhongshuang 11 belonged to H-H type( high N use efficiency with high N responsiveness); Xiangzayou 743 belonged to L-L type( low N use efficiency with low N responsiveness); Ganyouza 5 and Fengyou 730 belonged to H-L type( high N use efficiency with low N responsiveness); Rongyou 10 belonged to L-H type( low N use efficiency and high N responsiveness). The nitrogen accumulation could not accurately reflect the type of nitrogen efficiency in rapeseed,while both the nitrogen utilization efficiency and the nitrogen harvest index could well reflect the type of nitrogen efficiency.
Source: Guangdong nongye kexue
Author: Zou Xiaoyu
Institution: Jiangxi Academy of Agricultural Sciences
Language: English
Subfield: Agronomy and Crop Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $726
OpenAlex ID: W2350715158