| GA_3和PP_(333)对苹果花芽形态建成及其内源激素比例变化的影响 |
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| 引用本文： | 曹尚银,汤一卒,张俊昌.GA_3和PP_(333)对苹果花芽形态建成及其内源激素比例变化的影响[J].果树学报,2001(6). |
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| 作者姓名： | 曹尚银 汤一卒 张俊昌 |
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| 作者单位： | 中国农业科学院郑州果树研究所 郑州450009
(曹尚银)，南京农业大学 南京210095
(汤一卒)，河南省安阳市林业局 安阳455000(张俊昌) |
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| 摘 要： | 以红富士、首红苹果为研究对象,连续3年用PP333(多效唑)1000mg/L和GA3(赤霉酸)1000mg/L处理,结果表明:PP333可使叶芽的节位数增长,但对花芽的节位数没有明显的影响。而GA3对叶芽节位数没有影响,但首红苹果花芽节位数有减少趋向。二者处理对苹果花芽形态分化开始时期没有影响,但PP333加速了花芽形态分化进程,GA3延迟了花芽形态分化进程。喷PP333提高了ZR(玉米素核苷)/IAA(吲哚乙酸),ZR/GAS(赤霉素)、ABA(脱落酸)/IAA和ABA/GAS比值,从而促进了花芽形成。相反,GA3处理降低了ZR/IAA、ZR/GAS、ABA/IAA和ABA/GAS比值,而抑制了花芽形成。
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| 关 键 词： | 苹果 花芽 多效唑 赤霉酸 内源激素 |
Effects of GA_3 and PP_(333) on the Apple Flower Bud Differentiation Course and Contents of Endogenous Hormone |
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| Cao Shangyin ,Tang Yizu ,and Zhang Junchang.Effects of GA_3 and PP_(333) on the Apple Flower Bud Differentiation Course and Contents of Endogenous Hormone[J].Journal of Fruit Science,2001(6). |
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| Authors: | Cao Shangyin Tang Yizu and Zhang Junchang |
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| Institution: | Cao Shangyin 1,Tang Yizu 2,and Zhang Junchang 3 |
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| Abstract: | Redchief and Red Fuji apple varieties were used as materials for testing the effect of treatments of paclobutrazol(PP 333 )and GA 3 on the contents of endogenous hormones in buds.The results showed that noted that PP 333 could increase the leaf bud node number,but no effect was noted for flower bud;there was no effect of GA 3 for the node number of bud on the Red Fuji apple variety,but had a trend of decreasing the node number of flower bud on the Redchief variety.PP 333 and GA 3 made no change on the critical period of flower bud initiation.PP 333 enhanced the development of the flower bud and thus shortened the sustained period of flower bud formation.GA 3 delayed the development of the flower bud.The contents of ABA and ZR,and ZR/IAA,ZR/GAs ,ABA/IAA and ABA/GAs ratios in spur bud were remarkably increased.While GAs and IAA content in spur bud were decreased by PP 333 treatment.The contents of GA 3 and IAA in spur bud were remarkably in-creased.While ZR and ABA content ,ZR/IAA,ZR/GAs ,ABA/IAA,and ABA/GAs in spur bud were decreased by GA 3 treatment. |
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| Keywords: | Apple Flower bud PP 333 GA 3 Endogenous hormone |
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