负载量对宁夏设施草莓光合作用和果实品质的影响  

Effect of Different Fruit Loading Treatments on the Photosynthesis and Fruit Quality of Strawberry in Ningxia Greenhouse

作　　者：单守明[1] 杨恕玲[1] 王振平[1] 平吉成[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《北方园艺》2011年第1期5-8,共4页Northern Horticulture

基　　金：宁夏大学博士科研启动资金资助项目;宁夏大学农学院青年教师科研资助项目;国家科技支撑计划资助项目(2007BAD57B05)

摘　　要：研究不同果实负载量处理对宁夏设施草莓生长发育、光合作用和果实品质的影响。结果表明:花期进行疏果,能显著增加草莓叶面积,提高果实中性转化酶、蔗糖合酶和细胞壁转化酶活性,降低了酸性转化酶活性、叶绿素含量和净光合速率,果实品质得到显著提高。每株草莓留果量超过2个果实后,产量不再显著增加。在设施环境条件下,花期疏果,可通过调节果实内蔗糖代谢关键酶活性调节库容量和库强,加快叶片发育和加强光合作用,最终提高果实的品质。This experiment used strawberry in greenhouse to study the effects of different fruit loading treatment on strawberry development,photosynthesis and fruit quality.The results showed that thinning fruit in anthesis significantly increased foliar area,improved activities of neutral invertase,sucrose synthesis and cell-wall invertase,decreased soluble acid invertase activity,foliar chlorophyll content and net photosynthetic rate decreased too.The fruit yield was not significantly increased when the fruit number in average plant were more than 2 fruits.So in greenhouse of Ningxia,thinning fruit in anthesis could affected sink capacity and strength through regulated the activities of sucrose metabolism enzymes,the foliar development and photosynthesis affected too,in the end,the fruit quality increased.

关 键 词：草莓 负载量 光合作用 果实品质 

分 类 号：S668.4[农业科学—果树学]