| 标题： | 不同温度处理对''绿世界''卡特兰花芽分化及内源激素动态变化的影响 |
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| 英文标题： | The Effect of Different Temperature Treatments on Dynamic Changes of Endogenous Hormones and Flower-bud Differentiation of 'Green World' Cattleya |
| 作者： | 郑宝强,王雁,彭镇华,李莉 |
| 出版时间： | 2010-01-01 |
| 机构： | 河北农业大学 |
| 关键词： | 卡特兰,花芽分化,温度,新叶,内源激素 |
| 英文关键词： | Cattleya,flower-bud differentiation,temperature,new leaves,endogenous hormones |
| 刊名： | 林业科学研究 |
| 英文刊名： | Forest Research |
| ISSN： | 1001-1498 |
| 卷号： | 006 |
| 基金： | ^A引进国际先进农业科学技术计划（“948”计划）^B2006-4-C07,2005-4-37^D1 |
| 页码： | 833-838 |
| 分类号： | S682.31 |
| 摘要： | 运用酶联免疫法,测定了卡特兰在花芽分化期经3种不同温度处理其新叶内源激素的动态变化,结果表明:(1)25℃/20℃处理能显著促进花芽分化,30℃/25℃处理花芽能正常分化,35℃/30℃处理抑制花芽分化;(2)25℃/20℃、30℃/25℃处理的新生叶片中赤霉素(GA3)、玉米素(ZR)、脱落酸(ABA)含量增加,吲哚乙酸(IAA)含量减少;35℃/30℃处理抑制新生叶片中GA3、ZR、ABA含量,促进IAA含量,而较低的GA3、ZR、ABA含量和较高水平的IAA含量不利于花芽分化;(3)35℃/30℃处理使GA3/IAA、GA3/ZR的比值处于一个较为稳定的状态,而这种状态不利于花芽分化.保持较低的IAA/ZR与IAA/ABA水平,有利花芽分化的继续进行. |
| 英文摘要： | The changes of endogenous hormones in the new leaves of Cattleya during the flower-bud differentiation phase with 3 temperature treatments were determined by ELISA.The results indicated that:(1) The flower-bud differentiation was significantly accelerated under the treatment of 25 ℃/20 ℃,which was normal under treatment of 30 ℃/25 ℃ and inhibited under treatment of 35 ℃/30 ℃;(2) The contents of GA3,ZR,and ABA were promoted while IAA was inhibited under the treatments of 25 ℃/20 ℃ and 30 ℃/25 ℃.It was opposi... |