草业科学2017，Vol.34Issue(6)：1247-1254,8.DOI:10.11829/j.issn.1001-0629.2016-0416
遮阴对两个绿豆品种光合作用和生长发育的影响
Effect of shading on photosynthesis and growth in two Phaseolus aureus varieties
摘要
Abstract
In order to determine the suitability of Phaseolus aureus as interplanting crops, field experiments and pot trials were conducted under full natural light, and 30 and 72% shading to test the shade tolerance of two Mung bean varieties, including Small Robinia-flower Round-leaf (SRRPA) and Big Lace-leaf Mung bean(BLPA) in 2015.The photosynthetic parameters, chlorophyll content, and RuBPCase activity in leaves of the Mung beans were measured during the first bloom stage.In addition, the response of growth and nutritional quality to weak light was studied.The results showed that, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), water use efficiency (WUE) and RuBPCase activity of BLPA significantly decreased by 24%, 18%, 12%, 13%, and 21%, respectively, than that under full light, whereas these parameters showed no significant change at 30% shading in SRRPA in response to shading.Photosynthetic parameters, including Pn, Gs, Tr, and WUE, in the two Mung bean varieties were significantly decreased by more than 11% under 72% shading.Vegetative growth of BLPA was significantly inhibited, but that of SRRPA revealed no significant change at 30% shading.In addition, vegetative growth of the Mung beans was significantly inhibited at 72% shading, and dry matter yield decreased by more than 34%, compared to those under full light.Shading treatments significantly reduced seed yield by over 37% compared to that under full light.These results indicated that SRRPA had the ability of resisting shade, and could tolerate 30% shading, which was suitable for intercropping.关键词
绿豆/耐阴能力/光合参数/叶绿素/光合酶/营养成分/产量Key words
Phaseolus aureus/shade tolerance/photosynthesis parameters/chlorophyll/photosynthetic enzyme/nutritive components/yield分类
农业科技引用本文复制引用
孙善军,邹长明,张晓红,赵敏,何涛..遮阴对两个绿豆品种光合作用和生长发育的影响[J].草业科学,2017,34(6):1247-1254,8.基金项目
农业部生物有机肥创制重点实验室开放课题(BOFC2015KB01),国家重点研发计划(2016YFD0300901) （BOFC2015KB01）
