Seed priming as a promising technique to improve growth, chlorophyll, photosynthesis and nutrient contents in cucumber seedlings

文献类型： 外文期刊

第一作者： Anwar, Ali

作者： Anwar, Ali;Yu, Xianchang;Li, Yansu;Anwar, Ali;Anwar, Ali

作者机构：

关键词： Cucumis sativus L; gibberellic acid; KNO3; nutrients uptake; plant growth

期刊名称：NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA （ 影响因子：1.444； 五年影响因子：1.363 ）

ISSN： 0255-965X

年卷期： 2020 年 48 卷 1 期

页码：

收录情况： SCI

摘要： Seed priming is a technique to improve seed germination, seedlings growth, uniformity and yield. The present study was designed to, investigate the physiological mechanism of seed priming with GA(3) and KNO3 on cucumber seedlings growth, chlorophyll, photosynthesis and nutrients uptake. The cucumber seeds were treated as; CK; control, T1; GA(3) 100 ppm, T-2; GA(3) 200 ppm, T-3; KNO3 1%, T-4; KNO3 5%, before seed sowing. The results showed that seed priming with GA(3) and KNO3 significantly increased the plant height, fresh and dry weight and strong seedling index. Moreover, chlorophyll a, chlorophyll b, chlorophyll a+b, carotenoid contents, net photosynthesis rate (Pn), stomatal conductance (Gs), transpiration rate (Tr) and intercellular CO2 concentration in seed priming seedlings. In addition, seed priming significantly enhanced leaf macro and micro nutrient contents. Additionally, among various treatments GA(3) 200 ppm and KNO3 5% are found best. These results suggested that seed priming with GA(3) and KNO3 synergistically promoted the chlorophyll contents, photosynthesis and nutrients uptake in cucumber seedlings, thus leading to improve plant growth.

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