苹果属几个种及品种的叶表皮毛研究

The Epidermic Hairs of Apple and Crab Apple Leaves

本研究表明：湖北海棠［ＭａｌｕｓｈｕｐｅｈｅｎｓｉｓＲｅｈｄ］、山定子［Ｍ．ｂａｃｃａｔａ（Ｌ．）Ｂｏｒｋｈ］、西府海棠［Ｍ．ｍｉｃｒｏｍａｌｕＭａｋｉｎｏ］、毛山定子［Ｍ．ｍａｎｄｓｈｕｒｉｃａ（Ｍａｘｉｍ．）Ｋｏｍｒｏｖ］、三叶海棠［Ｍ．ｓｉｅｈｏｌｄｉｉＲｅｈｄ］、垂丝海棠［Ｍ．ｈａｌｌｉａｍａＫｏｅｈｎｅ］６个种苹果叶片两面茸毛平均长度最短，无论与苹果［Ｍ．ｐｕｍｉｌａＭｉｌｌ］的二倍体或三倍体栽培品种、或与矮化砧比较差异均显著。三倍体品种叶片上表皮茸毛长度与粗度及下表皮茸毛粗度均大於二倍体品种．元帅系短枝型品种无论上下表皮毛的长度与粗度均比普通品种大．故而认为叶片茸毛在苹果种质鉴定研究中可做为一项重要参考依据。

The study on the epidermic hairs of apple leaves indicated that the average lengths of the hairs in the two sides of leaves of six species (M. hupehensis Read, M. baccota L., M. micromalus Mak., M.manshurica Maxim, M. sieboldii Rehd. and M. halliana Koehne)were shorter, and significantly differenct compared with either diploid or triploid cultivars or dwarf stock. The length and diameter of the upper epidermic hairs and the diameter of the undemeath epidermic hairs of triploid cultivars were all longer and bigger than that of diploid cultivars. The length and diameter of both the upper and undemeath epidermic hairs of Delicious-series were longer and bigger than those of general cultivars. It is suggested that the leaf hair could be considered as an important reference in the study of apple germplasm identification.