套种木薯对花生品种桂花30光合特性和农艺性状的影响  

Effect of intercropping with cassava on some photosynthetic and agronomic characteristics of peanut variety Guihua 30

作　　者：韦威旭[1] 

机构地区：[1]广西农业科学院能源作物研究所,南宁530007

出　　处：《广西农业科学》2010年第4期323-325,共3页Guangxi Agricultural Sciences

基　　金：南宁市科学研究与技术开发计划项目(200802066B);国家科技支撑计划项目(2007BAD75B02)

摘　　要：为了促进花生品种桂花30的推广和提高其套种效益,对桂花30与木薯套种时花生光合特性及农艺性状进行研究。结果表明:桂花30套种和纯种的光合作用在生长中期最高,在生长后期降低;桂花30套种的光合速率、气孔导度、蒸腾速率在生长中期分别比纯种低2.88μmol CO2.m-2.s-1、0.08 mol H2O.m-2.s-1、0.05 mmol H2O.m-2.s-1;生长后期与纯种相当。桂花30套种不同时期其总分枝数、叶片数均低于纯种,株高后期平均比纯种高7.3 cm;花生套种产量(折合成同等面积)比纯种低11.0%。An experiment has been undertaken to study the photosynthetic and agronomic characteristics of peanut variety Guihua 30 intercropped with cassava in order to promote its popularization and intercropping benefits. The results showed that the photosynthesis in Guihua 30 intercropped with or without cassava was highest in the middle growth period while it decreased at the late growth stage. The net photosynthesis rate （Pn）, stomatal conductance （Gs） and transpiration rate （Tr） of Guihua 30 intercropped with cassava was significantly lower than those without cassava, which were 2.88 μmol CO2·m-2·s-1, 0.08 mol H20·m-2·s-1 and 0.05 mmol H20·m-2·s-1, respectively in the middle period of growth. The total number of branches and leaf numbers of peanut intercropped with cassava were both Iower than those without cassava in different period of growth. The plant height and yield of peanut intercropped with cassava was 7.3 cm higher and 11.0% lower than those without cassava intercropping, respectively.

关 键 词：桂花30 花生 套种 光合特性 农艺性状 

分 类 号：S565.201[农业科学—作物学]