‘바로미2’의 수발아 발생이 종자의 발아 및 어린모 생육에 미치는 영향 = Effects of Pre-Harvest Sprouting on the Seed Germination and Seedling Growth of ‘Baromi2’

다국어 초록 (Multilingual Abstract)

ABSTRACT Owing to its rapid water absorption rate, rice variety ‘Baromi2’ is sensitive to pre-harvest sprouting(PHS), especially when the grain is exposed to prolonged rainfall or high humidity. Aside from causing a reduction in both grain yield and quality, PHS also affects the germination rate, making utilization of the seed difficult. Therefore, in this study, we analyzed the effects of the PHS damage rate and seed disinfection method on seed germination and seedling growth. Seed viability decreased with increase in PHS, being lower than 70% when PHS was above 7%. Moreover, the germination rate decreased under hot water and hot water + pesticide disinfection, decreasing to 85% or less when the PHS or immature grain rate was 7% or higher. These results suggest that when the percentage of PHS or immature grains is more than 7%, hot water disinfection may adversely affect seed germination and seedling growth, indicating the need for careful seedling management.