多子芋叶柄及芽色的多样性及芋形观察

Diversity of Petiole and Bud Color and Observation of Taro (Colocasia esculenta Schott.) Shape of Taro Germplasm Resources with Numerous Corm

介绍了多子芋种质资源叶柄及芽色的多样性 ,总结了多子芋的叶柄颜色及芽色的对应关系及芋形的一般规律。叶柄为绿色或紫色时 ,芽为白色 ;叶柄为乌绿色时 ,芽为淡红色。叶柄紫色类的子孙芋芋形最好 ,卵圆形 ,且表皮棕毛少 ;叶柄绿色类和叶柄乌绿色类的子孙芋芋形较叶柄紫色类差 ,其中 ,叶柄绿色类的子芋芋形一般为头大尾小的卵圆形 ,表皮棕毛较多 ;叶柄乌绿色类的子芋一般为长卵圆形至卵圆形 ,且表皮棕毛较多。 3种类型的孙芋一般为卵圆形 ,且表皮棕毛少。芋形指数基本上反映了芋的实际形状。

This article introduced the biological diversity of petiole and bud color of taro germplasm resources with numerous corms and summarized a corresponding relationship between the petiole color and the bud color and the general law of the taro shape. Bud color is white when the petiole is green or purple.Bud color is light red when the petiole is purple green.The shape of the first grade corm of the purple petiole with little hair is elliptical,better than that of the green and that of the purple green generally.The form of the first grade corm of the green with much hair is elliptical,bigger on top than that on bottom.The form of the first grade corm of the purple green petiole with much hair is long elliptical to elliptical.The form of the second grade corm of the three kinds of types with little hair is elliptical.Index of taro shape reflects their actual of taro shapes.