中国油料作物学报2011，Vol.33Issue(2)：147-151,5.
不同向日葵品种群体光合生理参数及产量比较
Comparative study of physiological parameter and grain yield on different sunflower hybrid populations
摘要
Abstract
Field experiment was conducted to study the physiological parameter and grain yield on 3 sunflower hybrid populations. Result showed that leaf area index were developed very fast. The time of the max leaf area index were at 51 d after seedling emergence. The leaf area index varied with different sunflower hybrids with a range of 3.57 ～ 5.64. Biological yield and grain yield had significant positive correlation with the photosynthesis potential of the population. The average net photosynthetic rates were 5.08 to 7.02g/m2 · d, and varied with different sunflower hybrids and years. The trends of biological yield accumulation were "fast - slow - fast", and conformed to the Logistic equation model. Distribution ratio of biomass in various organs was stem (grain) ＞ grain (stem) ＞ leaf ＞head ＞ petiole. The average percentages of grain ( economical index) were 29.7％ and 34.4％ in two years. The economical index of early maturity sunflower was higher than that of middle maturity sunflower.关键词
向日葵/群体生理/产量Key words
Sunflower/ Group physiological/ Grain yield分类
农业科技引用本文复制引用
崔良基,王德兴,宋殿秀,孙恩玉,刘金刚..不同向日葵品种群体光合生理参数及产量比较[J].中国油料作物学报,2011,33(2):147-151,5.基金项目
公益性行业(农业)科研专项(nyhyzx3-50) （农业）
现代农业产业技术体系建设专项(nycytx-21) （nycytx-21）
