农学学报2017，Vol.7Issue(6)：27-33,7.
土壤肥力和灌水量组合对不同类型小麦光合特性及产量的影响
Combination of Soil Fertility and Irrigation:Effect on Photosynthetic Characteristics and Yield of Different-Type Wheat
摘要
Abstract
The aim is to provide a basis for water saving and high yield cultivation of wheat. In the condition of pond culture, the effects of different combinations of soil fertility and irrigation on the photosynthetic rate (Pn), chlorophyll fluorescence parameters and yield of medium-gluten wheat'Jimai 22'and strong-gluten wheat'Jimai20' were studied. The results showed that Pn, chlorophyll fluorescence parameters Fv/Fm (the maximum photochemical efficiency) and ФPSⅡ(actual photochemical efficiency) of flag leaf after anthesis were promoted with the increase of soil fertility and irrigation amount. The effect of fertility on photosynthetic characteristics was more significant than that of irrigation. With the increase of soil fertility, the starting time of Pn and ФPS Ⅱ declining delayed gradually. The improvement of soil fertility was useful to reduce the inhibition of photosynthesis by environmental stress. There was a compensation effect between soil fertility and irrigation for the influence on the yield and yield composition of the two wheat cultivars. Under high soil fertility, the yield differences of the two wheat cultivars were not significant between limited irrigation and full irrigation conditions.Improving soil fertility could relief the declining photosynthetic character index due to insufficient irrigation, and sustain a higher level of photosynthetic product accumulation at later growth stage.关键词
小麦/水肥运筹/光合参数/叶绿素荧光参数/产量Key words
Wheat/Strategy of Irrigation and Fertilization/Photosynthetic Parameters/Chlorophyll Fluorescence Parameters/Yield分类
农业科技引用本文复制引用
刘国伟,任艳云,闫璐..土壤肥力和灌水量组合对不同类型小麦光合特性及产量的影响[J].农学学报,2017,7(6):27-33,7.基金项目
山东省现代农业产业技术体系小麦创新团队济宁试验站专项(SDATT-04-022). （SDATT-04-022）
