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中国农学通报

中国农学通报 ›› 2020, Vol. 36 ›› Issue (10): 47-52.doi: 10.11924/j.issn.1000-6850.casb20191100842

所属专题： 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

银杏外种皮提取液对桑叶生长、生理指标及蚕茧质量的影响

张笑聪(), 郁万文, 蔡金峰, 国颖, 汪贵斌()   

  1. 南京林业大学南方现代林业协同创新中心,南京 210037
  • 收稿日期:2019-11-15 修回日期:2020-02-18 出版日期:2020-04-05 发布日期:2020-03-19
  • 基金资助:
    国家重点研发计划课题“叶和外种皮用银杏高效培育与综合利用关键技术研究”(2017YFD0600701)

Effects of Ginkgo biloba Exocarp Extracts on Mulberry Leaf Growth, Physiological Indexes and Cocoon Quality

Xiaocong Zhang(), Wanwen Yu, Jinfeng Cai, Ying Guo, Guibin Wang()   

  1. Nanjing Forestry University, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing 210037
  • Received:2019-11-15 Revised:2020-02-18 Online:2020-04-05 Published:2020-03-19

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摘要：

以桑树品种‘强桑1号’为试材,进行叶面喷施5个浓度（A~E处理依次为2.5、5.0、10.0、15.0、20.0 g/L）的银杏外种皮提取液处理和1个空白对照CK（蒸馏水）处理,分析不同处理对桑叶生理生化指标的影响。使用处理后桑叶喂食家蚕,分析处理后桑叶对蚕茧品质的影响。结果表明：桑树的单株枝条长、叶长、净光合速率、桑叶产量、全碳含量、全磷含量、可溶性糖含量和可溶性蛋白含量均在处理C时达到最大值,与CK相比分别增加了20.12%、24.71%、18.37%、32.99%、20.69%、21.00%、24.88%和42.82%;桑叶的叶宽、叶面积和全氮含量在处理D时达到最大值,与CK相比分别增加了19.87%、45.06%和19.55%。蚕茧的全茧量、茧层量和茧层率在处理C时达到最大值,分别比CK提高了11.64%、25.64%和11.42%。基于隶属函数综合评价的各处理排序为C>D>E>B>A>CK,其中处理C(10 g/L)对桑树枝条的生长、桑叶的产量和品质、蚕茧质量和品质的促进效果最佳。综上,适当浓度的银杏外种皮提取液处理能够显著促进桑树枝条的生长,提高桑叶产量与质量,喂食处理后的桑叶获得的蚕茧产量和品质也相应提高。

关键词: 银杏外种皮, 桑树, 蚕茧, 叶产量, 叶品质

Abstract:

In this study, ‘Qiangsang No.1’ mulberry tree was used as a test material, and five different concentrations of Ginkgo biloba exocarp extracts treatment (A-E: 2.5, 5.0, 10.0, 15.0, 20.0 g/L) and one blank control treatment CK were set up by field foliar fertilization test. The effects of different treatments on physiological and biochemical indexes of mulberry leaves were analyzed. Further, the processed mulberry leaves were used to feed the silkworm, and the effect of the treated mulberry leaves on the quality of the silkworm pupa was analyzed. The results showed that the branch length, leaf length, net photosynthetic rate, mulberry leaf yield, total carbon content, total phosphorus content, soluble sugar content and soluble protein content of mulberry trees reached the maximum at treatment C. Compared with the control, they increased by 20.12%, 24.71%, 18.37%, 32.99%, 20.69%, 21.00%, 24.88% and 42.82%, respectively. The leaf width, leaf area and total nitrogen content of mulberry leaves reach the maximum at treatment D. Compared with the control, they increased by 19.87%, 45.06% and 19.55%, respectively. The cocoon weight, cocoon shell weight, cocoon shell rate reached the maximum at treatment C, which increased by 11.64%, 25.64% and 11.42%, respectively. The processing order based on the comprehensive evaluation of the membership function was C>D>E>B>A>CK, among them, treatment C (10 g/L) had the best effect on the growth of mulberry branches, the yield and quality of mulberry leaves, and the quality and quality of silkworm cocoons. In summary, appropriate concentration of Ginkgo biloba exocarp extracts treatment can significantly promote the growth of mulberry branches, improve mulberry yield and quality, and the yield and quality of silkworm cocoons obtained by feeding with treated mulberry leaves are also increased accordingly.

Key words: Ginkgo biloba exocarp extracts, mulberry, cocoon, leaf yield, leaf quality

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