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


  • Ali ANWAR Chinese Academy of Agricultural Sciences, Institute of Vegetables and Flowers, Beijing 100081; Seoul National University, Graduate School of International Agricultural Technology and Crop Biotechnology Institute/Green Bio Science & Technology, Pyeongchang, 25354 (PK)
  • Xianchang YU Chinese Academy of Agricultural Sciences, Institute of Vegetables and Flowers, Beijing 100081 (CN)
  • Yansu LI Chinese Academy of Agricultural Sciences, Institute of Vegetables and Flowers, Beijing 100081 (CN)



Cucumis sativus L; gibberellic acid; KNO3; nutrients uptake; plant growth


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 GA3 and KNO3 on cucumber seedlings growth, chlorophyll, photosynthesis and nutrients uptake. The cucumber seeds were treated as; CK; control, T1; GA3 100 ppm, T2; GA3 200 ppm, T3; KNO3 1%, T4; KNO3 5%, before seed sowing. The results showed that seed priming with GA3 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 GA3 200 ppm and KNO3 5% are found best. These results suggested that seed priming with GA3 and KNO3 synergistically promoted the chlorophyll contents, photosynthesis and nutrients uptake in cucumber seedlings, thus leading to improve plant growth.


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How to Cite

ANWAR, A., YU, X. ., & LI, Y. (2020). Seed priming as a promising technique to improve growth, chlorophyll, photosynthesis and nutrient contents in cucumber seedlings. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 48(1), 116–127.



Research Articles
DOI: 10.15835/nbha48111806