不同生态型大蒜品种生态特性研究＊Ⅱ．温度和光周期对大蒜二次生长的影响  

Ecological Characteristics of Different Ecotypes of Garlic ( Allium sativum ) Cultivars Ⅱ.Effects of Temperature and Photoperiod on Secondary Growth in Garlic Plants

作　　者：陆帼一[1] 樊治成[1] 杜慧芳[1] 

机构地区：[1]西北农业大学园艺系

出　　处：《西北农业大学学报》1996年第5期11-15,共5页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：低温反应敏感型供试品种中有不发生ＳＧｏ（外层型二次生长）和ＳＧｉ（内层型二次生长）及不发生ＳＧｏ只发生ＳＧｉ两类。播种前４０ｄ用３５℃处理蒜种使ＳＧｉ减轻；鳞芽分化发育期光周期对ＳＧｉ的发生影响不大。低温反应中间型包括发生ＳＧｏ和ＳＧｉ及不发生ＳＧｏ只发生ＳＧｉ两类品种。５℃处理蒜种诱发ＳＧｏ和ＳＧｉ，３５℃减轻ＳＧｏ的发生，但有使ＳＧｉ加重的趋势。光周期对ＳＧｏ的发生无明显影响，１２ｈ以下短日照促进ＳＧｉ发生。低温反应迟钝型品种一般不发生ＳＧｏ只发生ＳＧｉ．Cultivars of Low Temperature Sensitivity Type used in this test included two kinds,i.e. non occurance of secondary growth of outlayer type (SGo) and secondary growth of inner layer type (SGi),and non occurance of SGo but SGi.SGi was lowered by seed clove treatment with 35℃ for 40 days before planting.Photoperiodical treatment during clove differintiation and development period had less influence on SGi.Cultivars of Low Temperature Middle Type included two kinds,i.e.occurance of both SGo and SGi, and non occurance of SGo but SGi.SGo and SGi were promoted by seed clove treatment with 5℃,and SGo was lowered by 35℃,but it tended to increasing SGi.Photoperiodical treatment had less influence on SGo,while SGi was promoted by daylength below 12 h. Cultivars of Low Temperature Inactivity Type generally was non occurance of SGo but SGi.Seed cloves treated by 5℃ or the daylength below 12 h during the clove differentiation and development period favored the occurance of SGi.

关 键 词：大蒜 生态型 温度 光周期 二次生长 

分 类 号：S633.4[农业科学—蔬菜学]