当前位置: 首页 > 文章 > 不同品种冬小麦磷效率性状与农学性状关系的研究 植物营养与肥料学报 2004,10 (4) 355-360
Position: Home > Articles > Study on the relationship between phosphorus efficiency and agronomic traits of winter wheat cultivars Journal of Plant Nutrition and Fertilizers 2004,10 (4) 355-360

不同品种冬小麦磷效率性状与农学性状关系的研究

作  者:
王兰珍;米国华;陈范骏;张福锁
单  位:
中国农业大学植物营养学农业部重点开放实验室教育部植物土壤相互作用重点开放实验室中国农业大学资源与环境学院
关键词:
株高;生育期;产量因素;磷效率
摘  要:
通过两年的田间试验,对冬小麦农学性状和磷效率性状之间的关系进行了研究。结果发现,植株较高或抽穗期推迟较多的品种中磷效率性状好的品种较多;产量构型中更多地依靠单一产量因素获得产量的品种对低磷敏感。研究还发现,在缺磷严重的条件下(OlsenP=2.4mg kg)扬花期的生物量、光合叶面积和穗粒数与冬小麦的磷效率相关性较好;在缺磷较轻的条件下(OlsenP=6.6mg kg)成穗数与冬小麦的磷效率相关性较好。这些性状有可能作为筛选磷高效材料的辅助选择指标。
译  名:
Study on the relationship between phosphorus efficiency and agronomic traits of winter wheat cultivars
作  者:
WANG Lan-zhen,MI Guo-hua, CHEN Fan-jun, ZHANG Fu-suo ollege of Resour. and Environ. CAU,Beijing 100094,China)
关键词:
plant height; growth period; yield components; phosphorus efficiency
摘  要:
The relationship between agronomic and P efficiency traits in winter wheat was investigated within two-year field experiments. The results showed that the genotypes, which have higher height or heading stage more delayed by P deficiency, are most likely P-efficient. The genotypes whose yield mostly depended on one of factors may be more sensitive to P deficiency. The results also indicated that biomass, leaf area at flowering and kernels per head at serious P deficient conditions(Olsen P = 2.4 mg/kg)or number of head at slight P deficient conditions(Olsen P = 6.6 mg/kg) may be taken as the secondary selection criterion in breeding for P efficient cultivars.

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