云南农业大学学报（自然科学）2017，Vol.32Issue(6)：985-991,7.DOI:10.16211/j.issn.1004-390X(n).2017.06.004
不同覆盖物对甘薯光合特性和产量的影响
Impact of Different Film Mulching on the Photosynthetic Characteristics and the Yield of Sweet Potato Varieties
摘要
Abstract
[Purposes] The experiment was to choose the best mulching method and provide a theoretical basis of high-yield cultivation of sweet potato.[Methods] We tested the yield and the photosynthetic characteristics related indicators of leaves and carried out the relevance analysis,using the straw and soil,black plastic film,and transparent plastic film as the mulching during cultivation of ‘ Rongshu-819’ [Results] (1) The yield of the treatment with the black plastic film mulching was the highest,the transparent plastic film treatment lower,and the straw and soil treatment was the lowest.(2) The yield of three treatments all had extremely significant positive correlations with net photosynthesis rate (Pn),intercellular CO2 concentration (Ci) and the contents of chlorophyll,significant positive correlations with transpiration rate (Tr).(3) In three treatments,Pn all had extremely significant positive correlations with Ci,Tr and the contents of chlorophyll,positive correlations with water use efficiency (WUE),and significant negative correlations with stomatal resistance (Sr).[Conclusion] In this experiment,we concluded that the black plastic film could be used as the mulching in production,which could increase Pn and the yield of sweet potatoes.关键词
甘薯/光合特性/产量Key words
sweet potato/photosynthetic characteristics/yield分类
农业科技引用本文复制引用
鄢铮,张小红,王正荣..不同覆盖物对甘薯光合特性和产量的影响[J].云南农业大学学报（自然科学）,2017,32(6):985-991,7.基金项目
福建省科技星火计划项目(2016S0003) （2016S0003）
福州市科技计划项目(2016-N-114). （2016-N-114）
