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| Autore principale: | |
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| Natura: | Artículo científico |
| Lingua: | es |
| Pubblicazione: |
Universidad San Francisco de Quito
2019
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| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=726180885007 |
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Sommario:
- Desarrollo de una variedad de maíz tropical de grano blanco con calidad de proteína para consumo en fresco Daniel Francisco Alarcón Cobeña Jimmy Ricardo Francisco Limongi Andrade Eddie Ely Zambrano Zambrano José Bernardo Navarrete Cedeño Multidisciplinaria (Ciencias Naturales y Exactas) QPM Half sibs Fresh corn Selection cycle In the irrigated lowlands valleys of the Ecuadorian coast, the production of white maize for fresh consumption during the dry season is presented as a profitable commercial and social option. The supply of seed is high, which is used for various production systems. The only variety in the country is INIAP-528 (QPM), which was released 29 years ago, with the aim to produce 40000 commercial corn cobs at 74 days after sowing, and with protein contents of 9 to 10%, with Tryptophan and lysine levels of 0.97 and 3.7%, respectively. In order to replace this old maize variety, the Maize Program of the Experimental Station Portoviejo of the National Institute for Agricultural Research (INIAP) introduced the population ACROSS-8363 (QPM) from CIMMYT in 2011. The increase in yield of Cycle 4 was 156% higher than the yield produced for Cycle 1. Diallelic crosses among ten selected families of Cycle 4 were made during the dry season of 2017. With the best ears, a seed compound will be prepared to plant them in a field for free pollination to obtain a synthetic variety. During 2019, the new variety is being evaluated in farmer’s fields, comparing yield and quality with the commercial variety. 2019 artículo científico 1390-5384 https://www.redalyc.org/articulo.oa?id=726180885007 es http://www.redalyc.org/revista.oa?id=7261 Avances en Ciencias e Ingenierías application/pdf Universidad San Francisco de Quito Avances en Ciencias e Ingenierías (Ecuador) Num.1 Vol.11