01814naa a2200217 a 450000100080000000500110000800800410001902400390006010000190009924501500011826000090026852010980027765000120137565000140138765000160140165000230141765000180144070000160145870000230147477300990149720324092016-03-29       2015    bl uuuu     u00u1 u    #d7 a10.1080/00103624.2015.10816962DOI1 aFAGERIA, N. K.  aInfluence of nitrogen on growth, yield, and yield components and nitrogen uptake and use efficiency in dry bean genotypes.h[electronic resource]  c2015  aDry bean is an important legume and nitrogen (N) deficiency is one of the most yield-limiting factors in most of the bean-growing regions. A greenhouse experiment was conducted with the objective to determine influence of N on growth, yield, and yield components and N uptake and use efficiency of 23 dry bean genotypes. Straw yield, grain yield, yield components, maximum root length, and root dry weight were significantly increased with the addition of N but varied with genotypes. The N × genotype interactions were also significant for most of these traits, indicating variation in responses of genotypes with the variation in N levels. There was significant difference in N uptake and use efficiency among genotypes. Most of growth and yield components were significantly and positively associated with grain yield. Based on grain yield efficiency index (GYEI), genotypes were classified into efficient, moderately efficient, or inefficient group in N-use efficiency. Nitrogen concentration was greater in grain compared to straw, indicating greater N requirement of dry bean genotypes.  aFeijão  aGenótipo  aNitrogênio  aPhaseolus vulgaris  aProdutividade1 aMELO, L. C.1 aCARVALHO, M. C. S.  tCommunications in Soil Science and Plant Analysis, New Yorkgv. 46, n. 19, p. 2395-2410, 2015.