Abstract
Dry 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.
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Claims 12
Claim · model-written summary
Nitrogen addition significantly increased straw yield.
Not reportedComparator
Verbatim
t0“Dry Bean”
e0“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.”
Claim · model-written summary
Nitrogen addition significantly increased grain yield.
Not reportedComparator
Verbatim
t0“Dry Bean”
e0“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.”
Claim · model-written summary
Nitrogen addition significantly increased yield components.
Not reportedComparator
Verbatim
t0“Dry Bean”
e0“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.”
Claim · model-written summary
Nitrogen addition significantly increased maximum root length.
Not reportedComparator
Verbatim
t0“Dry Bean”
e0“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.”
Claim · model-written summary
Nitrogen addition significantly increased root dry weight.
Not reportedComparator
Verbatim
t0“Dry Bean”
e0“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.”
Claim · model-written summary
Responses of these traits to nitrogen varied among genotypes, with significant nitrogen by genotype interactions for most traits.
Not reportedDirection
Verbatim
t0“Dry Bean”
e0“The N × genotype interactions were also significant for most of these traits, indicating variation in responses of genotypes with the variation in N levels.”
Claim · model-written summary
Genotypes differed significantly in nitrogen uptake.
Verbatim
t0“Dry Bean”
e0“There was significant difference in N uptake and use efficiency among genotypes.”
Claim · model-written summary
Genotypes differed significantly in nitrogen use efficiency.
Verbatim
t0“Dry Bean”
e0“There was significant difference in N uptake and use efficiency among genotypes.”
Claim · model-written summary
Most growth and yield components were significantly positively associated with grain yield.
Verbatim
t0“Dry Bean”
e0“Most of growth and yield components were significantly and positively associated with grain yield.”
Claim · model-written summary
The grain yield efficiency index classified genotypes into three nitrogen use efficiency groups.
Verbatim
t0“Dry Bean”
e0“Based on grain yield efficiency index (GYEI), genotypes were classified into efficient, moderately efficient, or inefficient group in N-use efficiency.”
Claim · model-written summary
Nitrogen concentration was greater in grain than straw.
Verbatim
t0“Dry Bean”
e0“Nitrogen concentration was greater in grain compared to straw, indicating greater N requirement of dry bean genotypes.”
Claim · model-written summary
Greater grain nitrogen concentration indicated greater nitrogen requirement of dry bean genotypes.
Verbatim
e0“Nitrogen concentration was greater in grain compared to straw, indicating greater N requirement of dry bean genotypes.”