Integral Effect of Seed Treatments and Production Systems for Sustainability of Rice Production under Acid Soil

摘要

Background and Objective: The establishment of healthy vigorous plant is the first step to attainment of high yield. The study was aimed to evaluate seed priming techniques and rice production systems to reduce the effect of acid soil on rice seed germination, growth, development and yield productivity. Methodology: The experiment was conducted by Complete Randomized Design (CRD) with four replications. Rice seeds ( Oryza sativa L. var. indica cv. Pathumthani 1) was primed by three priming materials, polyethylene glycol (PEG) 6000 at the concentration of 10% and 2% potassium nitrate (KNO₃) for 48 h, hydro priming (deionized water) for 24 h, where as non-primed seeds were used as a control treatment. After that, the treated rice seed was grown organically by conventional (CN) and the system of rice intensification (SRI) methods in greenhouse condition using acid soil as growth media. The result showed that primed seed had a significant effect (pResults: Among the treatments, the hydropriming technique provided the best result of seed germination performance, seedling development parameters and total rice yield per hectare followed by the osmopriming technique using polyethylene glycol (PEG 6000). Conclusion: Finally, the promising results were recorded on SRI for Water Use Efficiency (WUE) that the little amount of water used during production was able to double the yield output compered with conventional methods.