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1987-1988年对福建香蕉主栽品种天宝蕉、台湾蕉和柴蕉的叶片组织细胞结构进行观察和若干生理指标测定.结果表明耐寒性较强的柴蕉叶片角质层细胞层数较多,角质层厚度+栅状组织厚度/叶片厚度比天宝蕉和台湾蕉高,但海绵组织厚度/叶片厚度则较低.前者叶片膜脂不饱和脂肪酸含量、不饱和脂肪酸指数、越冬前淀粉含量、越冬期可溶性糖、束缚水含量以及束缚水/自由水比值均高于后两者.供试3个栽培品种的耐寒力为柴蕉>天宝蕉>台湾蕉.叶片组织细胞结构和上述生理指标可作为鉴别香蕉耐寒力的指标.
From 1987 to 1988, the leaf tissue cell structure of Fujian banana cultivars Tianbao banana, Taiwan banana and firewood banana were observed and some physiological indexes were measured.The results showed that the cells with more cold hardiness had more stratum corneum cell layers, The thickness of the layer + the thickness of the palisade tissue / the thickness of the leaves were higher than that of the plantlets of Tianbao and Taiwan, but the thickness of the sponge tissue / the thickness of the leaves were lower.The content of unsaturated fatty acids, unsaturated fatty acid, pre-winter starch, Soluble sugar, irreducible water content and irreducible water / free water ratio were higher than the latter two.For the three cultivars tested, the cold hardiness of the three cultivars was Chaijiao> Tianbaojiao> Taiwanese banana.The leaf tissue cell structure and the above physiological indexes could be used as identification Banana cold resistance index.