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云南地方稻核心种质耐低磷特性研究
被引:15
作者:
申时全
曾亚文
普晓英
杜娟
李绅崇
机构:
[1] 云南省农业科学院生物技术与种质资源研究所
来源:
关键词:
<Keyword>Rice landrace core collection;
Yunnan Province;
Relative plant dry weight;
Phosphorus deficiency;
D O I:
10.13287/j.1001-9332.2005.0198
中图分类号:
S511 [稻];
学科分类号:
摘要:
Soil phosphorus (P) deficiency is a major yield-limiting factor in rice production.Employing 526 rice landrace accessions from 5 rice-planting regions and 16 prefectures in Yunnan Province,this paper studied their P-deficiency tolerance characteristics by comparing the relative plant dry weight under acid red soil condition.The results showed that Northwest Yunnan cold highland japonica rice-planting region was most abundant in P-deficiency tolerance core collection of indica,and there was no significant difference in japonica among five ecological zones of rice landraces.Nujiang,Lijiang,Dehong,Wenshan,Xishuangbana and Yuxi were most abundant in P-deficiency tolerance core collection of indica,and Lijiang,Wenshan and Chuxiong were most abundant in P-deficiency tolerance core collection of japonica.Indica had a higher P-deficiency tolerance than japonica.The P-deficiency tolerance of rice was significantly related with its genetic diversity,rice breeding and acid red soils.
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页码:1569 / 1572
页数:4
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