Effects of Cultivar and Ethanol Disinfection on Aseptic Germination of Loquat (Eriobotrya japonica) Seeds
文献类型： 外文期刊
作者： Li, Kunkun 1 ; Dong, Weiqi 1 ; Zhao, Yun 1 ; Xu, Hongxia 2 ; Chen, Junwei 2 ; Xu, Changjie 3 ;
作者机构： 1.Zhejiang Univ, State Agr Minist Lab Hort Plant Growth Dev & Qual, Zijingang Campus, Hangzhou 310058, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Hort, Hangzhou 310021, Zhejiang, Peoples R China
3.Zhejiang Univ, Zhejiang Prov Key Lab Hort Plant Integrat Biol, Zijingang Campus, Hangzhou 310058, Zhejiang, Peoples R China
关键词： ABA;ethanol;plant preservative mixture (PPM)
期刊名称：HORTSCIENCE （ 影响因子：1.455； 五年影响因子：1.617 ）
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收录情况： SCI
摘要： Loquat (Eriobotrya japonica Lindl.) is an economically important subtropical fruit tree, originating and commercially produced mainly in China and Japan. The aseptic seed germination of 13 loquat cultivars, including 9 white-fleshed cultivars and 4 red-fleshed ones, was studied, and the relationship between the germination rate and the content of endogenous ABA in seeds was explored. The germination rate and the seedling height at 80 days after sowing of white-fleshed cultivars were generally higher than that of red-fleshed ones. The ABA content in seeds was generally lower in white-fleshed cultivars, and the ABA content negatively correlated with the germination rate at 80 days after sowing. A moderate detrimental effect of 75% ethanol disinfection on aseptic germination of loquat seeds was observed, especially, for the cultivar Dahongpao, and the germination rate and seedling height were reduced by around half and one-third, respectively. The addition of plant preservative mixture (PPM) to the germination medium at a final concentration of 25 mg.L-1 effectively controlled contamination when the 75% ethanol disinfection procedure was omitted.
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