库尔勒香梨短果枝花序维管束与萼片脱落关系研究  

Relationship Between the Inflorescence Vascular Bundles of Korla Fragrant Pear Short Fruit Branches and Sepal Shedding

作　　者：金敏 张倩 张天正 包建平[1,2,3] 吴翠云 张锐[1,2,3] 陶书田[4] JIN Min;ZHANG Qian;ZHANG Tianzheng;BAO Jianping;WU Cuiyun;ZHANG Rui;TAO Shutian(College of Plant Science,Tarim University,Xinjiang Alar 843300,China;Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin,Xinjiang Production and Construction Corps,Tarim University,Xinjiang Alar 843300,China;State and Local Joint Engineering Laboratory for High-efficiency and Superior-quality Cultivation and Deep Processing of Characteristic Fruit trees in Southern Xinjiang,Tarim University,Xinjiang Alar 843300,China;College of Horticulture,Nanjing Agricultural University,Nangjing 210095,China)

机构地区：[1]塔里木大学植物科学学院,新疆阿拉尔843300 [2]塔里木大学,新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆阿拉尔843300 [3]塔里木大学,南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆阿拉尔843300 [4]南京农业大学园艺学院,南京210095

出　　处：《中国农业科技导报》2021年第11期55-61,共7页Journal of Agricultural Science and Technology

基　　金：新疆生产建设兵团重大科技专项(2017DB006);国家自然科学基金项目(31860528);兵团科技特派员项目(BT1720180011G);2019年新疆维吾尔自治区林果科技项目;塔里木大学大学生创新项目(2018077)。

摘　　要：为了探究库尔勒香梨果柄、胴部和花萼的维管束发育与萼片脱落的关系。以香梨为供试品种,分别对短果枝花序第4序位的香梨进行喷施清水(对照)、吲哚乙酸(indoleacetic acid,IAA)和三碘苯甲酸(triiodobenoic acid,TIBA)处理,并比较了短果枝第4序位的香梨在脱萼过程中果柄、胴部和萼筒维管束数目和面积的动态变化。结果表明:不同处理的香梨脱萼率大小顺序为TIBA处理>对照处理>IAA处理。对照与IAA处理的果柄、胴部和萼筒部位的维管束数目无显著差异,但均大于TIBA处理。对照与IAA处理的萼筒维管束面积显著高于TIBA处理。脱萼率与胴部维管束数目、萼筒维管束数目均呈极显著性负相关,与果柄维管束数目和萼筒维管束面积均呈显著性负相关。综上可知,TIBA处理会影响萼筒维管束的数目和面积的增加,抑制维管束的发育,增加香梨的萼筒脱萼率。In order to explore the relationship between sepal shedding and the development of the vascular bundle in the fruit stalk,carcass and calyx tube of Korla fragrant pear,this paper took Korla fragrant pear as the test mateirial,and sprayed the clear water(CK),indoleacetic acid(IAA)and triiodobenoic acid(TIBA)on the 4th-order fragrant pear of the short-fruit branch inflorescence,respectively,and then compared the dynamic changes of the number and area of vascular bundles in the fruit stem,carcass and calyx tube of the 4th-order fragrant pear during the detachment process.The results showed that:the order of calyx shedding rate of fragrant pear under different treatments was TIBA treatment>CK>IAA treatment.The numbers of vascular bundles in the fruit stalk,carcass and calyx tube of CK and IAA treatments were not significant difference,but were significant higher than those of TIBA treatment.The areas of vascular bundle in the calyx tube of CK and IAA treatments were significant bigger than those of TIBA treatment.The detachment rate was extremely significant negatively correlated with the area of vascular bundle in calyx tube and the number of vascular bundles in the fruit equator of‘fragrant pear’,and calyx tube was significant negatively correlated with the area of vascular bundle in the fruit stalk and calyx tube.In summary,TIBA should influence the number and area of vascular bundles in calyx tube,inhibit the development of vascular bundles and increase the calyx shedding rate of Korla fragrant pear calyx tube.

关 键 词：库尔勒香梨 维管束 脱萼率 

分 类 号：S662.1[农业科学—果树学]