Root and stalk rot incidence in non-senescent sorghum genotypes and their chemical control
1989
Evangelista, C.C. | Tangonon, N.G. (Southern Mindanao Univ., Kabacan, North Cotabato (Philippines). Southern Mindanao Agricultural Research Center)
Stalk rot in USM [University of Southern Mindanao, Philippines] Kabacan, North Cotabao was caused by a complex of three pathogens, namely: Fusarium moniliforme, Rhizoctonia solani and Colletotrichum graminicola. Resistant lines like Q101, Q102, Q103, E36--1, TQ16-2, SPV86, BJ111, PQ76, and CHS6 showed lower percent soft stalk, number of nodes crossed, and plant death. PQ76 (3.39 t/ha), PQ60-2 (2.55 t/ha), and E36-1 (2.37 t/ha) gave yields similar to the local check UPL Sg5 (with yield of 3.18 t/ha). Seed treatment with fungicides such as Ridomil (6 g/kg seeds), Benlate (1 g/L water), Brassical (4 g/L water), and Dithane M45 (4 g/L water) significantly decreased percent soft stalk, root infection, number of nodes crossed, and increased the yield of sorghum. Increase in yield ranged from 40-100%.
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