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考察了云南省滇南自然林区分布的113份野生长果桑资源,其中有66份滇南长果桑资源开雌花并结果,47份开雄花。66份开雌花结果资源的桑椹中有44份结实,27份发芽,但多数发芽率不到50%。对长果桑资源材料进行培苗栽植及野生原芽嫁接栽植,调查其主要农艺性状、扦插生根能力、嫁接亲合性以及桑叶的饲用性,结果表明:27份能发芽的野生长果桑资源桑叶中的总糖含量较低,适口性较差,只有5份资源的桑叶能被家蚕正常摄食;66份开雌花结果的野生长果桑资源中,有86.4%的资源能扦插生根成活,有92.4%的资源能嫁接成活,但各资源间的扦插生根能力和嫁接成活率有明显差异;27份能发芽的野生长果桑资源经嫁接或扦插,使树龄年轻化,果形和叶幅变大,枝条节距变短。丰富的滇南野生长果桑资源可作为果用经济林和生态林木树种开发利用。
A total of 113 wild fruits were collected from natural forests in Southern Yunnan. Among them, 66 were from southern Yunnan. Forty-four of the 66 mulberry fruits with female flowers were female, 27 were sprouted, but most were less than 50%. The results showed that 27 kinds of germinating wild fruits could be planted and the wild germplasm was planted and grafted. The main agronomic characters, cuttage rooting ability, grafting affinity and foraging of mulberry leaves were investigated. Mulberry mulberry leaves in the total sugar content is lower, less palatability, only 5 mulberry leaves of the resources can be normal feeding silkworm; 66 wild female fruit growth results of mulberry resources, there are 86.4% of the resources can cuttings Rooted alive, 92.4% of the resources can be grafted alive, but the cutting ability of rooting and grafting survival rates are significantly different; 27 germinating wild long-walled mulberry resources by grafting or cutting, the age of young, fruit-shaped And leaf width becomes larger, shorter branches pitch. The abundant resources of wild fruits in southern Yunnan can be used as economic fruit trees and ecological forest tree species.