Effect of priming treatments on seed quality enhancement in cucumber (Cucumis sativus L.) Seeds

Abstract

Poor germination obstructs early and uniform seedling stand in cucumber. A laboratory experiment was conducted at the department of seed science and technology, College of Agriculture, University of Agricultural Sciences Raichur, during 2018-19 using Completely Randomized Design having 12 priming treatments with four replications to evaluate the possibility of improvement in emergence and early seedling growth in cucumber by pre-sowing treatments. Seeds of cucumber were soaked in different priming solution of for 24 h and evaluated for seed physiological and biochemical seed quality parameters. Results showed that seeds primed with KH2PO4 @ 0.001 M (T8) registered significantly highest germination per cent, shoot length, root length, seedling dry weight, seedling vigour index I, seedling vigour index II and dehydrogenase enzyme activity (89.00%, 22.96 cm, 22.77 cm, 498.27 mg, 4070, 44347 and 0.494 respectively) and lowest (0.211 dSm -1 ) electrical conductivity compared to other treatments and control (T1) (76.50%, 11.14 cm, 10.22 cm, 400.32 mg, 1634, 30625 and 0.231 respectively). But significantly highest (0.695 dSm -1 ) electrical conductivity was observed in control (T1).

Impact of Different Seed Priming Treatments on Seed Yield in Foxtail Millet

“…Increased germination due to KH 2 PO 4 priming could be due to ion absorption by seeds. Furthermore, potassium salts have been shown to increase ambient oxygen levels by making less oxygen available for the citric acid cycle (Shakuntala et al 2020) and to influence plant development by modulating pre-germination metabolic activity prior to radicle emergence, as well as to improve germination rate and plant photosynthetic performance in general.…”