The effects of weathering on mungbean (Vigna radiata (L) Wilczek) seed quality
1984
Mohammad Mohammad Lassim | Chin, H.F. | Darman Abdullah, Wan (Universiti Pertanian Malaysia, Serdang, Selangor. Faculty of Agriculture)
It was found that weathering reduced seed yield and quality. Yield losses were manifested by reductions in seed weight and threshing percentage. Overripe pods became detached from the plants. Quality losses included decline in seed germinability and vigour. Seed dry weights for the first, second, third and fourth harvests were 54, 53, 49 and 40 mg/seed, and germinability was 98%, 94%, 85% and 79%, respectively. Seedling emergence declined from 93% to 89% to 82% to 70%. Shoot dry weight showed a significant decline with each harvest interval but root dry weight showed no significant difference. Seeds of later harvest showed a higher degree of infection by seed borne fungi, especially, Fusarium spp. Infection by Aspergillus spp. and Curvularia spp. were also observed. The severity of infection increased after the onset of the rainy season
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