Effect of low temperature and chilling duration on bud break and changes of endogenous hormones of asparagus
Effect of low temperature and chilling duration on bud break and changes of endogenous hormones of asparagus
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DOI：
10.17660/ejhs.2016/81.1.3
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发表时间：
2016-02-01
影响因子：
0.9
通讯作者：
Liu, M.
中科院分区：
文献类型：
--
作者：
Nie, L. C.;Chen, Y. H.;Liu, M.
本研究旨在探讨芦笋的休眠特性。在温带气候中‘应用’。采用酶联免疫吸附试验(ELISA)检测花蕾内源激素含量。结果表明，芦笋植株在低温诱导下进入休眠状态，需要一段低温时间才能恢复萌发和芽生长的活力。在中国北部，2℃持续30天或5℃持续45天是打破‘阿波罗’休眠的适宜冷期。在越冬或冷藏过程中，‘Applo’芽中赤霉酸(GA(3))、吲哚乙酸(IAA)和玉米素核苷(ZR)的含量保持相对稳定，而脱落酸(ABA)含量则有升有降，表明ABA的变化与芦笋休眠和休眠的解除密切相关。
The aim of this study was to investigate the dormancy characteristics of Asparagus officinalis Linn. 'Applo' in temperate climates. Contents of endogenous hormones in bud were examined by Enzyme-Linked Immunosorbent Assay (ELISA). The result showed that asparagus plants underwent dormancy induced by low temperature, need a chilling duration to restore vigor for bud break and spear growth. In northern China, 2 degrees C for 30 days or 5 degrees C for 45 days was the suitable chilling duration for 'Applo' dormancy breaking. During winter time or chilling preservation, content of gibberellic acid (GA(3)), indoleacetic acid (IAA) and zeatin riboside (ZR) in buds of 'Applo' remained relatively stable, while abscisic acid (ABA) content rose and went down, which indicated that change of ABA was closely related to the dormancy and dormancy-breaking of asparagus.