Fertilization effects with P on accumulated leaf area duration,biomass and yield of three cultivars of maize in Toluca,Mexico |
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| Authors: | Díaz López E A Morales Ruíz EJ Vargas Ramírez P Hernández Herrera RC Reséndiz Melgar I Brena Hernández JM Loeza Corte |
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| Institution: | 1 Ingeniería en Agricultura Sustentable y Protegida, Universidad Tecnológica de Tehuacán. Prolongación de la 1 sur, No. 1101 San Pablo Tepetzingo, Tehuacán Puebla, México. C.P. 75859.2 Ingeniería en Agroindustrias, Universidad de la Cañada. Carretera Teotitlán San Antonio Nanahuatipam s/n, México. |
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| Abstract: | The effect of six phosphorus levels (0, 40, 80, 120, 160 and 200 kg/ha) on the duration of cumulative leaf area, biomass and agronomic yield was determined in the maize cultivars: Amarillo Almoloya, Cacahuacintle and Condor in 2010 and 2011. Such cultivars were sown in the Cerrillo Piedras Blancas Mexico. A completely randomized complete block design with factorial arrangement was utilized. High phosphorus levels (120, 160 and 200 kg/ha) positively affected the duration of cumulative leaf area; greatest values were obtained in Cacahuacintle. A greater duration of accumulated leaf area contributes to determine high values of biomass accumulation and grain yield in this cultivar. Leaf area duration appeared to be a useful tool for evaluating different genotypes in a given environment. |
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| Keywords: | Cultivars Biomass Yield Free pollination Maize Leaf area Phosphorus |
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