Techniques for Multiplying Homogeneous Seed of Sorghum (Sorghum bicolor L.), Papèsèk Variety, in Northern Haiti at Limonade
- The trial multiplied Papèsèk sorghum seed on 9.5 hectares at Limonade, split into parts of 5 and 4.5 hectares.
- The harvest came 120 to 125 days after sowing, and panicles were sorted so that only uniform ones supplied the seed.
- Grain yield was 1.7 tonnes per hectare without panicle residue and 3.02 tonnes with it, compared with a technical reference above 5 tonnes per hectare.
- The report attributes the low yield to the yellow sugarcane aphid, which it says destroyed a large part of the sorghum plantings that season.
- The authors recommend effective plant-protection products, irrigation water, resistant varieties, a regional cropping calendar, mechanization and a soil-based fertilizer program.
The report describes the field operations used to multiply homogeneous seed of the Papèsèk sorghum variety on a farm at Limonade, following the terms of reference of the SMASH alliance of small growers. It covers soil preparation, seed treatment, sowing, weeding, thinning, fertilization, pest control, irrigation, bird scaring, harvest and the selection of panicles for seed.
The plot gave 1.7 tonnes of grain per hectare, well below the more than 5 tonnes per hectare the report gives as a technical reference. The authors attribute the shortfall to infestation by the yellow sugarcane aphid Melanaphis sacchari beyond the economic threshold. They recommend access to effective plant-protection products and irrigation water, resistant varieties, a regional cropping calendar, mechanization and a fertilizer program based on soil results.
How to cite
Le Scientifique, 2023, Techniques for Multiplying Homogeneous Seed of Sorghum (Sorghum bicolor L.), Papèsèk Variety, in Northern Haiti at Limonade, https://lescientifique.org/wp-content/uploads/2024/07/Techniques-de-multiplication-de-semence-homogene-du-sorgho-Sorghum-Bicolor-L.-variete-Papesek-dans-le-Nord-dHaiti-a-Limonade.pdf
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