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.
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Claims 9
Claim · model-written summary
Rapeseed genotypes differed significantly in grain yield, biological yield and harvest index.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e1“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”
Claim · model-written summary
Rapeseed genotypes differed significantly in nitrogen efficiency and nitrogen responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e1“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”
Claim · model-written summary
Zhongshuang 11 was classed as H-H type, with high N use efficiency and high N responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e2“Zhongshuang 11 belonged to H-H type( high N use efficiency with high N responsiveness)”
Claim · model-written summary
Xiangzayou 743 was classed as L-L type, with low N use efficiency and low N responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e3“Xiangzayou 743 belonged to L-L type( low N use efficiency with low N responsiveness)”
Claim · model-written summary
Ganyouza 5 was classed as H-L type, with high N use efficiency and low N responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e4“Ganyouza 5 and Fengyou 730 belonged to H-L type( high N use efficiency with low N responsiveness)”
Claim · model-written summary
Fengyou 730 was classed as H-L type, with high N use efficiency and low N responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e4“Ganyouza 5 and Fengyou 730 belonged to H-L type( high N use efficiency with low N responsiveness)”
Claim · model-written summary
Rongyou 10 was classed as L-H type, with low N use efficiency and high N responsiveness.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e5“Rongyou 10 belonged to L-H type( low N use efficiency and high N responsiveness)”
Claim · model-written summary
Nitrogen accumulation could not accurately reflect the type of nitrogen efficiency in rapeseed.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e6“The nitrogen accumulation could not accurately reflect the type of nitrogen efficiency in rapeseed”
e7“both the nitrogen utilization efficiency and the nitrogen harvest index could well reflect the type of nitrogen efficiency”
Claim · model-written summary
Nitrogen utilization efficiency and nitrogen harvest index could reflect the type of nitrogen efficiency in rapeseed.
Verbatim
e0“A field plot experiment was conducted to study the variation in nitrogen use efficiency among five rapeseed( Brassica napus L.) genotypes in Jiangxi province”
e6“The nitrogen accumulation could not accurately reflect the type of nitrogen efficiency in rapeseed”
e7“both the nitrogen utilization efficiency and the nitrogen harvest index could well reflect the type of nitrogen efficiency”