Ecophysiological determinants of yield in three wheat cultivars based on fractionations of nitrogen

Authors

  • Tania Lilibeth Villafaña Arroyo Facultad de Ciencias Agrícolas, Universidad Autónoma del Estado de México, Campus Universitario “El Cerrillo” Toluca, México. Tel. (722) 2 96 55 29. Ext. 142
  • Edgar Jesús Morales Rosales Facultad de Ciencias Agrícolas, Universidad Autónoma del Estado de México, Campus Universitario “El Cerrillo” Toluca, México. Tel. (722) 2 96 55 29. Ext. 142
  • Gaspar Estrada Campuzano Facultad de Ciencias Agrícolas, Universidad Autónoma del Estado de México, Campus Universitario “El Cerrillo” Toluca, México. Tel. (722) 2 96 55 29. Ext. 142
  • Carlos Gustavo Martínez Rueda Facultad de Ciencias Agrícolas, Universidad Autónoma del Estado de México, Campus Universitario “El Cerrillo” Toluca, México. Tel. (722) 2 96 55 29. Ext. 142

DOI:

https://doi.org/10.29312/remexca.v5i3.946

Keywords:

Triticum aestivum L., implementation strategy, harvest index, efficiency of radiation

Abstract

The objective of this research was to e valuate biomass, grain yield, harvest index (HI) and efficiency of radiation (EUR) in 3 wheat cultivars under two nitrogen levels in three application times (strategies). The experiment was established during the season spring-summer 2011 in Toluca, Mexico. Wheat cultivars were evaluated: Salamanca S-75, Romoga F-96 and Tollocan F-2005 with two levels of N (100 and 200 g N ha-1 k) application using three strategies: 1 (50% of N at planting and 50% at tillering), 2 (50% N at planting and 50% at terminal spikelet), 3 (50% of N at planting and 50 % flag leaf). Data were analyzed in a split-plot experimental design. Among the cultivars, Tollocan F-2005 showed higher biomass yield and HI. With 200 kg N ha-1 biomass values, increased performance and a positive U.S. response strategies 2 and 3 was observed; However the efect or strategy depends on cultivar and fertilization. Tollocan F-2005 peaked grain yield (695.61 gm-2) when they traron supply 200 kg N ha-1 applying 50% at planting and 50% at f lag leaf.

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Published

2018-03-05

How to Cite

Villafaña Arroyo Tania Lilibeth, Morales Rosales Edgar Jesús, Gaspar Estrada Campuzano, and Martínez Rueda Carlos Gustavo. 2018. “Ecophysiological Determinants of Yield in Three Wheat Cultivars Based on Fractionations of Nitrogen”. Revista Mexicana De Ciencias Agrícolas 5 (3). México, ME:405-19. https://doi.org/10.29312/remexca.v5i3.946.

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