Effect of osmopriming on germination of rice seed

Abstract

The experiment was conducted at the Seed Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from September to October, 2011 to study the effect of chemical priming of seed on germination and growth of rice seedling cv. BRRI dhan 29. Seeds were soaked in 3% and 5% solutions of CaCl 2 , ZnSO 4 and KCl for 24, 30, 36, 42, 48, 54, 60 hours, respectively. A control was maintained where seeds were subjected to no priming treatment. The experiment was laid out in a Completely Randomized Design with three replications. Primed seeds were tested for germination and vigour on sandy soil media (60:40) in petridish under field capacity. Seed quality tests included mean germination time, shoot length, shoot dry mass, root length and root dry mass. The results revealed that priming treatments had significant influence on germination and all the growth parameters of rice seedlings. Priming with 3% ZnSO 4 for 30 hours showed the highest germination percentage and the lowest mean germinaion time. Priming with 5% KCl for 54 hours showed the highest root length while 5% of the same solution for 24 hours showed the highest root dry mass. On the contrary, seeds having no priming treatment showed the lowest values for germination, vigour index, shoot length,shoot dry mass, root length and root dry mass and the highest mean germination time. The present study concludes that rice seed cv. BRRI dhan29 could be primed with 3% ZnSO 4 solution for 30 hours for improving germination and seedling growth.

Studies on Effect of Micronutrients on Seed Quality Parameters in Paddy (Oryza sativa. L)

“…Several other researchers had also reported the result in the same direction as found in the present study. Hasan et al, 2016 also concluded that paddy seed primed with ZnSO 4 (3.0 %) for 30 hours, resulted in highest germination percentage and the lowest mean germination time. Marthandan et al, 2017 reported that undried rice seeds at high moisture stores under cold storage is found to be best as compared to ambient storage condition.…”

Seed Hardening: A Way to Tolerate Against Abiotic Stress in Rainfed Areas

“…• Hasan et al (2016) while studying on the osmopriming for paddy seed reported that priming the seeds with 3% ZnSO 4 and 5% KCl for different durations had significant influence on germination percentage, growth parameters (root length, root dry weight) and less germination time. The priming of rice seeds with KNO 3 also influenced significantly the yield of paddy.…”

Seed priming - one small step for farmer, one giant leap for food security: II mechanism and manifestation

“…Batool et al, (2015) [45] Osmopriming 1.Highest germination percentage were found prime with CaCl2, ZnSO4 and KCl 2. Improve field crop establishment in 1% KNO3 salt solution Hasan et al, (2016) [46] Singh et al, (2012) [47] Osmohardening 1. Osmo-hardeningr with Vitamin C increase germination , vigor index, shoot and root lengths Mamun et al, (2018) [48] 2.…”