Evaluation of Traditional Rice Genotypes (Oryza sativa L.) for Seed Quality Traits under Aerobic Condition
Sura Venkata Rachana
Department of Seed Science and Technology, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
B. Basavaraja *
Department of Seed Science and Technology, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
K. S. Shashidhara
Department of Genetics and Plant Breeding, College of Agriculture, Hassan, 573225, India.
K. N. Prakash
Department of Agricultural Economics, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
M. H. Manjunatha
Department of Agrometeorolgy, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
B. N. Radha
Department of Seed Science and Technology, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
D. C. Hanumanthappa
AICRP on Agroforestry, University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India.
*Author to whom correspondence should be addressed.
Abstract
Freshly harvested seeds of 58 traditional rice genotypes and two checks (KRH-4 and Doddabyranellu grown under aerobic condition were subjected to seed quality evaluation. Among traditional rice genotypes lowest electrical conductivity (3.48 (dScm-1 g-1), highest germination percentage (99.67 %), α-amylase activity (2.03 cm) and total dehydrogenase activity (1.123) was observed in Neralisale, whereas highest thousand seed weight (30.00 gm), mean seedling length (37.83 cm), mean seedling dry weight (22.53 mg), seedling vigor index-I (3693) and II (2216) was noticed in Chinnaponni compared to other genotypes. Among checks, Doddabyranellu showed better seed quality traits. From this study it could be concluded that genotypes Chinnaponni and Neralisale are well-suited for aerobic condition, benefiting farmers facing irrigation constraints by ensuring improved seed quality.
Keywords: Aerobic rice, seed quality, checks, traditional rice genotypes