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The objective of this work was to evaluate genotypes of wheat depending on doses of N in order to determine the best value of N and the components of productivity of wheat. Experiment was carried out in Pato Branco—PR in soil classified as Eutrophic typical RED LATOSOL. The experimental design was randomized blocks, in 3 × 5 × N doses genotypes, with three repetitions. The genotypes were: CD 108, CD 115 and BRS 220, and the doses of n were: zero; 20; 40; 80 and 120 kg of N·ha-1, applied at the beginning of tillering. After harvest assessed number of Spike NE, Tang EC length, grains per Spike GE, mass of thousand grains MMG, grain yield R and weight-HL PH, application of N increased the NE and R, and however decreased to MMG. The genotypes differed among themselves, featuring better performance of the NE the BRS 220, CE the CD 115 and R the CD 108. There were positive correlations between the doses of N with the NE and R and be-tween NE with the R, and negative correlation between doses of N with the MMG. It is concluded that the NE is the main factor that affects the R with N supply.

KEYWORDS

Triticum aestivum, Grain Yield, Nitrogen

Cite this paper

Fernandes Alves, M. , Ribeiro Teixeira, W. , Daros, E. , Cassol, L. , Lopes Pascoalino, J. and de Moraes, M. 2015 Productive Performance of Wheat Based on Nitrogen Fertilization in Coverage. American Journal of Plant Sciences, 6, 1587-1593. doi: 10.4236-ajps.2015.69159.





Autor: Michael Jonathan Fernandes Alves1*, Wilson Wagner Ribeiro Teixeira2, Edelclaiton Daros1, Luís César Cassol3, João Augusto Lope

Fuente: http://www.scirp.org/



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