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首页> 外文期刊>European journal of nutrition >Can alternating temperature, moist chilling, and gibberellin interchangeably promote the completion of germination in Clematis vitalba seeds?
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Can alternating temperature, moist chilling, and gibberellin interchangeably promote the completion of germination in Clematis vitalba seeds?

机译：交替的温度，潮湿的冷却和吉布林素可互换地促进Clematis Vitalba种子的萌发完成吗？

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摘要

Each plant species has particular requirements for seed germination, and some of them respond differently to constant or alternating temperature regimes. In this study, the interchangeable effects of different treatments and temperatures on the completion of seed germination of Clematis vitalba L. were investigated. The seeds were tested with a constant (from 5 degrees C to 25 degrees C) or a fluctuating (25/10 degrees C) temperature regime, and the effect of gibberellic acid (GA(3)), incubation at warm (W) or cold (C) temperatures while being imbibed, and drying after ripening (DAR) were evaluated. The final germination percentages and the time in days required to reach 50% of germination (T-50) were calculated. GA(3) and C significantly enhanced completion of seed germination at all of the temperatures tested. A strong positive effect of alternating temperature was observed, which triggered completion of seed germination regardless of treatment. Under the fluctuating temperature, the chilled seeds had the most rapid germination. Low germination rates were observed for both control and DAR treatments. Seeds of C. vitalba display a certain degree of dormancy, which can be broken by moist chilling and GA(3) treatments. Moreover, alternating temperature stimulates the completion of seed germination by satisfying certain physiological requirements for germination under constant temperatures.
机译：每个植物物种对种子萌发有特殊要求，其中一些物种对恒定或交替的温度制度不同。在这项研究中，研究了不同治疗和温度对Clematis VitalBA L的种子萌发完成的可互换影响。用常数（从5℃至25℃）或波动（25/10℃）温度调节和甘油酸（Ga（3））的作用，孵育（W）或在粘合的情况下冷（C）温度，并评估成熟（DAR）后干燥。计算最终发芽率和达到50％发芽（T-50）所需的时间。 Ga（3）和C在测试的所有温度下显着提高了种子萌发的完成。观察到交替温度的强烈积极效果，这引发了种子萌发的完成，无论治疗如何。在波动温度下，冷却​​的种子具有最快速的发芽。对控制和DAR治疗观察到低发芽率。 C.VitalBA的种子显示一定程度的休眠，可以通过湿润的冷却和GA（3）治疗来破碎。此外，交替温度通过满足恒定温度下的萌发的某些生理要求来刺激种子萌发的完成。

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