Maize germplasm conservation within rainfed agriculture: A proposal
1997
Santacruz Varela, Amalio | Munoz Orozco, A.
Plant breeding programs in water stressed and nutrient-limited environments generally have scarce resources for seed storage and germplasm conservation. This study was carried out to evaluate some locations and containers that could allow satisfactory germplasm conservation without great investment. Seeds of two maize landraces (Chapingo accessions 448 and 519) were packed in paper bags, metal cans, plastic bottles and laminated aluminum foil packets. They were stored at Huetamo, Mich. (427 masl), Chapingo, Mex. (2250 masl), Tecamac, Mex. (2298 masl) and San Juan Tetla, Pue. (3300 masl). A refrigerated room (-1 to 5 GradesC and 36 Per cent R.H.) was used as a reference environment. Locations were more suitable for seed storage as altitude increased. Paper bags were the least suitable container. The landraces differed for seed germination. Storage in the warm climate of Huetamo in paper bags was the worst combination for preserving seed viability.
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