| 摘要: |
| 报道了苗期外源GA3，ABA和乙烯利处理对蒜种冷凉或室温处理的3个大蒜品种生长及产量的影响。GA3使株高、假茎长和叶面积增加，乙烯利抑制了植株延伸生长，任何处理都未改变改良蒜不发生外层型二次生长（SGo）的习性，对其内层型二次生长（SGi）及对另外两个品种和蒜薹和蒜头产量均无显著影响，对苍山蒜SGo和SGi均无显著防止效果，在蔡家坡红皮蒜冷凉蒜种区，乙烯利处理使SGo显著减少，GA3处理SGi极显著减少，ABA也有减轻SGi的趋势，GA3处理使改良蒜鳞茎结构发生明显变化，蒜瓣层数增加2～3层，蒜瓣数平均增加11．0个。 |
| 关键词: 大蒜，二次生长，苗期外源激素处理，产量 |
| DOI： |
| 分类号:S633.406.2 |
| 基金项目:高等学校博士点基金资助项目 |
|
| Effects of Exogenous Hormone Treatments During the Seedling Stage Upon the Secondary Growth and Yields of Garlics of Different Cultivars |
|
Cheng Zhihui Lu Guoyi
|
| Abstract: |
| This paper reports the effects of exogenous GA3,ABA and ethephon
treatments during the seedling stage upon the growth and yields of three cultivars of
garilic with or without seed-clove cool-treatment.GA3 increased the plant height,pseudostem length and leaf area,but ethephon inhibited the elongating growth of plants.No treatments can change the habit of non-occurence of the seeondary growth of outer layer type (SGo) of cv.Gailiang garlic,have significant effects upon the secondary growth of
inner layer type (SGi) of the cultivar and upon the yields of scapes and bulbs of the other
two cultivars and have significant preventive effects upon both SGo and SGi of cv.Cangshan garlic.In the cool seed-clove plot of cv.Caijiapo Red skin garlic,SGo was significantly deereased by ethephon;and SGi was most significantly decreased by GA3.The decreasing trend in SGi was also found with ABA treatment.GA3 changed bulb strueture
remarkably and increased the layer of cloves by 2～3;and the mea nnumber of cloves per
bulb by 11.0 on cv.Gailiang garlic. |
| Key words: garlic, secondary growth,exogenous hormone treatment during the seedling stage,yield |
