论文部分内容阅读
金冠、胜利等苹果品种易产生果锈,严重时锈斑粗糙连片使果实失去商品价值。除金冠和胜利易产生果锈外,赤阳、元帅及国光等品种也不同程度地有所发生。 1.产生果锈的原因 易发生果锈的品种,果实表皮细胞较大,细胞壁薄且排列疏松,果面角质层薄,易于干裂,下皮细胞也较疏松。当幼果茸毛脱落、蜡质角质层未形成前,下皮细胞遭到外界因素刺激产生木栓形成层,尔后分生出若干层木栓化细胞而成为果
Golden Delicious, Victory and other varieties of apple easy to produce rust rust, severe rust rusty contiguous pieces of fruit loss of commodity value. In addition to the crown and the victory is easy to produce rust, the red sun, Marshal and Guoguang and other varieties have also occurred to varying degrees. 1. Causes of rust rust Rust susceptible varieties prone to fruit larger epidermal cells, thin and loosely arranged cell walls, fruit skin stratum corneum thin, easy to dry, the lower the skin cells are more loose. When the young fruit hair loss, waxy cuticle is not formed, the outer skin cells were stimulated by external factors to produce thrombus formation layer, then give rise to several layers of cork cells and become fruit