大蒜品种生态型的数量分类研究  

STUDY ON ECOTYPE CLASSIFICATION OF GARLIC VARIETIES

作　　者：樊治成[1,2] 陆帼一[1,2] 杜慧芳 

机构地区：[1]山东农业大学园艺系 [2]西北农业大学园艺系

出　　处：《植物生态学报》1997年第2期169-174,共6页Chinese Journal of Plant Ecology

基　　金：国家自然科学基金

摘　　要：采用实验分类学和数量分类学相结合的方法，将来自北纬２２°～４５°、东经７７°～１２７°的７３个大蒜品种分为３大生态型。不同生态型的主要区别性状是秋、春播的叶片数差比，它反映了鳞芽花芽分化对低温反应的敏感性。由此划分的３大生态型为：低温反应敏感型——秋、春播叶片数差比值大，越冬期叶片生长较快，但一般不耐寒，分布于北纬３１°以南的地区；低温反应迟钝型——秋、春播叶片数差比值小，越冬期叶片生长缓慢，耐寒，分布于低纬高海拔地区和北纬３５°以北的地区；低温反应中间型——生态特征介于低温反应敏感型和低温反应迟钝型之间，分布于北纬２３°～３９°的地域范围内。73 Garlic varieties collected from the area in 22°～45° N and 77°～127° E could be classified into 3 ecotypes by experimental and numerical taxonomy,the difference in number of leaves between autumn and spring seedeing was the main character by which the classification was made.It reflects the sensitivity of scaly bud and inflorescence differentiation to low temperature.The 3 ecotype were Low Temperature Sensitivity Type (LTST),Low Temperature Middle Type (LTMT) and Low Temperature Inactivity Type(LTIT).The difference is larger in LTST collected from the area at latitude 31°N and more southern.The plants grew rapidly in winter and were less tolerant to coldness.The difference was smaller in LTIT collected from the area at latitude 35°N and more northern or at low latitude but high altitude.The plants grew slowly in winter and were endurable to coldness.LTMT collected from area of latitude 23°～39° N behaved between LTST and LTIT in terms of the difference.

关 键 词：大蒜 品种生态型 数量分类 

分 类 号：S633.401[农业科学—蔬菜学]