两个胚败育率不同的枣品种果实生育期内源激素的变化

园艺学报 ›› 2004, Vol. 31 ›› Issue (6): 800-802.

两个胚败育率不同的枣品种果实生育期内源激素的变化

祁业凤;刘孟军^*

(河北农业大学中国枣研究中心, 保定071001)

收稿日期:2003-12-08 修回日期:2004-05-08 出版日期:2004-12-25 发布日期:2004-12-25

Change of Endogenous Hormone in Cultivars of Chinese Jujube with DifferentType of Embryo Abortion

Qi Yefeng;Liu Mengjun*

( Research Center of Chinese Jujube , Agricultural University of Hebei , Baoding 071001 , China)

Received:2003-12-08 Revised:2004-05-08 Online:2004-12-25 Published:2004-12-25

摘要/Abstract

摘要： 以胚轻度败育的冬枣和胚高度败育的梨枣为试材, 用高效液相色谱法对其果肉和种子的内源
激素进行了测定。结果表明, 梨枣果肉在坐果后20 d 以内的玉米素(Z) 含量及坐果后30 d 以内的GA3 、IAA 含量皆高于冬枣果肉, ABA 出现较冬枣早40 d , 冬枣种子Z 含量在坐果后20 d 达到最高值, 远高于冬枣果肉; GA3 一直保持很低水平。冬枣种子IAA 在坐果后40 d 达到最高峰, 以后一直保持较高水平, 远高于冬枣果肉; IAA/ GA3 、IAA/ Z值直至坐果后55 d、40 d 保持低水平, 但之后急剧提高。梨枣坐果后10 d ,无仁果肉的3 种生长类激素含量皆高于有仁果。幼果果肉中高水平的生长类激素不利于胚的正常发育, 而幼胚中高水平的Z和IAA 有利于胚的正常发育。

关键词: 枣, 冬枣, 梨枣, 果实发育, 内源激素, 胚败育

Abstract: Ziziphus jujuba cv. Dongzao , light embryo abortion cultivar and Ziziphus jujuba cv. Lizao , high embryo abortion cultivars were employed to determine endogenous hormone of pulp and seed by using HPLC. The results showed that : content of zeatin (Z) in the pulp of Lizao within 20 days after fruit set was higher than that in the pulp of Dongzao , so did the content of GA3 and IAA within 30 days after fruit set ; ABA in the pulp of Lizao was found earlier than that of Dongzao. In Dongzao , Z content of seed was much higher than pulp which reached peak 20 d after fruit set , GA3 content of Dongzao seed kept low all along. IAA content of Dongzao seed reached peak 40 d after fruit set , and kept high level after that , much higher than pulp of Dongzao ; IAA/ GA3 , IAA/ Z kept low within 55 , 40 days separately after fruit set , but raised very fast after that . Three growth hormones in the pulp of seedless fruit were higher than seeded fruit Z , GA3 and IAA content in the pulp of seedless fruit were higher than seeded fruit in Lizao 10 d after fruit set . The high Z , GA3 and IAA level in pulp were unfavorable for embryo development , but high Z and IAA level in embryo were favorable for embryo development .

Key words: Chinese jujube, Dongzao, Lizao, Fruit growth, Pulp, Seed, Endogenous hormone, Embryo abortion

中图分类号:

S 665.1

祁业凤;刘孟军. 两个胚败育率不同的枣品种果实生育期内源激素的变化[J]. 园艺学报, 2004, 31(6): 800-802.

Qi Yefeng;Liu Mengjun. Change of Endogenous Hormone in Cultivars of Chinese Jujube with DifferentType of Embryo Abortion [J]. ACTA HORTICULTURAE SINICA, 2004, 31(6): 800-802.

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