当年生桑树(Morus alba L.)果枝叶片特征与果实性状的相关性  

Relationship Between Fruit Characters and Leaf Features of Current-year Fruiting Twigs of Morus alba L.

作　　者：王悦[1] 胥晓[1,2] 刘刚[3] 秦芳[1] 陈梦华[1] 

机构地区：[1]西华师范大学生命科学学院,四川南充637009 [2]西华师范大学西南野生动植物资源保护教育部重点实验室,四川南充637009 [3]四川省农业科学院蚕业研究所,四川南充637009

出　　处：《中国农学通报》2014年第28期46-52,共7页Chinese Agricultural Science Bulletin

基　　金：四川省青年科技基金资助项目"气候变暖对桑树雌雄株生长和繁育的不同影响"(2012JQ0045)

摘　　要：为揭示叶果间的内在作用规律,以桑树(Morus alba L.)当年生果枝为研究对象,分析不同大小果枝上叶片特征和果实性状的差异及其二者间的相互关系。结果表明:随着果枝由小到大,果枝上的叶片数与总叶干重显著增加,而叶形指数却无显著变化;桑葚数与总桑葚干重也有显著增加,桑葚含水量无显著变化。桑葚数与叶片数、总叶干重、总叶面积及其平均桑葚干重显著正相关。研究结果证实了果实的性状与叶片特征之间存在极密切关系。当年生果枝上的桑葚数量多少取决于果枝上的叶片总数,平均桑葚的干重则与果枝上的平均叶面积显著相关。In order to explore inherent correlations between the leaf and fruit of plant, current-year fruiting twigs of Morus alba L. with different size were selected as experimental materials and the relationships between leaf features and fruit characters were analyzed. The results showed that： as twig size changed from small to large, leaf number and total leaf dry weight increased significantly whereas leaf shape index showed no significant changes; mulberry number and total mulberry dry weight increased significantly, but no significant changes in water content of mulberry were detected. There were significant positive correlations between mulberry number and leaf number, total leaf dry weight, total leaf area and mean mulberry dry weight. Our results demonstrated close relationships between the fruit characters and leaf features. For current-year fruiting twigs of Morus alba L., mulberry number was decided by the total leaf number and mean mulberry dry weight was significant related with mean leaf area.

关 键 词：桑树 叶片数量 桑葚数量 桑葚干重 平均叶面积 

分 类 号：S888.2[农业科学—特种经济动物饲养]