滇南野生长果桑资源的叶质鉴定和部分农艺性状调查  

A Survey on Leaf Quality and Partial Agronomic Traits of Wild Morus laevigata Wall Resources in Southern Yunnan

作　　者：储一宁[1] 杜伟[1] 吕志强[2] 李镇刚[1] 黄孝俊[1] 计东风[2] 

机构地区：[1]云南省农业科学院蚕桑蜜蜂研究所,云南蒙自661101 [2]浙江省农业科学院蚕桑研究所,杭州310021

出　　处：《蚕业科学》2014年第5期928-932,共5页ACTA SERICOLOGICA SINICA

基　　金：现代农业产业技术体系建设专项(No.CARS-22);国家茧丝绸发展基金专项;云南省现代农业产业技术体系建设专项(No.2013KJTX006)

摘　　要：为了发掘野生长果桑资源的实用价值,对收集的63份滇南野生长果桑资源进行叶质鉴定和农艺性状调查。家蚕摄食性试验显示63份长果桑资源中有20份资源的桑叶能被家蚕摄食。对这20份长果桑资源进行嫁接繁殖,种植第3年测定春季和秋季桑叶中的粗蛋白、粗脂肪、总糖等主要营养成分含量均低于对照栽培品种湖桑32号,且桑叶的养蚕成绩也不及湖桑32号。但是,20份长果桑资源的1年生枝条平均长度均超过湖桑32号,其中14份长果桑资源的1年生枝条平均米条产叶量超过湖桑32号。上述结果说明野生长果桑资源有生长势强的优点,但要作为果叶兼用桑树品种应用于生产,还有待进一步对其桑叶品质性状进行遗传改良。In order to explore practical value of the long-fruit mulberry,Morus laevigata Wall,63 long-fruit mulberry varieties collected from southern Yunnan were assessed on leaf quality and agronomic traits. Results showed that leaves of 20 of the 63 mulberry varieties could be fed by silkworm（ Bombyx mori）. After propagation of these 20 mulberry varieties through grafting,the contents of crude protein,crude fat,total sugar and other major nutrients in spring- and autumnharvested leaves were lower than those of the control mulberry cultivar,Husang 32,in the 3rd year after grating. Moreover,their rearing performance was also inferior to that of Husang 32. However,the average length of annual branches of all 20 varieties was longer than that of Husang 32,and 14 long-fruit mulberry varieties had higher average leaf yield per meter annual branch than Husang 32. These results indicated that wild Morus laevigata Wall has relatively strong growth vigor. However,more genetic improvement is needed to develop Morus laevigata Wall for both fruit and leaf uses in production.

关 键 词：野生桑资源 长果桑 叶质鉴定 农艺性状 

分 类 号：S888.3[农业科学—特种经济动物饲养]