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  • 张 静,史慧琴,杜彦修,等.水稻叶色氮素反应的基因型间差异[J].植物遗传资源学报,2012,13(1):105-110.    [点击复制]
  • ,et al.Genotypic Difference of Rice Leaf Color in Response to Nitrogen[J].植物遗传资源学报,2012,13(1):105-110.   [点击复制]
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水稻叶色氮素反应的基因型间差异
张 静, 史慧琴, 杜彦修, 李俊周, 赵全志
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(河南农业大学水稻工程技术研究中心/河南省粮食作物生理生态与遗传改良重点实验室)
摘要:
在大田不施氮素及高氮两个处理下,以叶片的SPAD值作为评价水稻氮素利用能力的参数,对146个不同基因型水稻进行了叶色深浅及对氮素敏感性不同的种质资源鉴定。通过测定抽穗前不同生育时期不同基因型水稻叶片的SPAD值,筛选出对氮素反应迟钝且叶色较浅基因型19个、对氮素反应迟钝且叶色较深基因型20个和对氮素敏感且叶色较浅基因型20个、对氮素敏感且叶色较深基因型11个。
关键词:  水稻  SPAD值  叶色  氮素  敏感  基因型
DOI:
基金项目:
Genotypic Difference of Rice Leaf Color in Response to Nitrogen
Abstract:
The experiment was conducted in two nitrogen treatments: one is with high nitrogen application; the other is without nitrogen supply. The indexes coming from leaf SPAD-value was used to evaluate leaf color and nitrogen sensitivity of rice among 146 genotypes before heading stage. All the tested genotypes were divided into 4 types according to their leaf SPAD-value. Type I of 19 genotypes had lower SPAD-value and lower nitrogen sensitivity. Type II of 20 genotypes had deeper leaf color and is also insensitive to nitrogen. Type III and IV included 20 and 11 genotypes of higher nitrogen sensitivity with lower and higher SPAD-value, respectively.
Key words:  Rice  SPAD-value  Leaf color  Nitrogen  Sensitivity  Genotype

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