Abstract
Crop yield requires leaf area to intercept solar radiation and to undertake photosynthesis, both of which depend on nitrogen (N) accumulation. Further, the amount of accumulated plant N at the beginning of seed fill serves as the reservoir for N required in synthesizing the proteins in developing seeds. For common bean (Phaseolus vulgaris L.), resolution of the basic characteristics limiting production is challenging because of variation in plant growth-habit and in wide-ranging plant spacing. Field experiments were undertaken at two low-latitude locations with three plant growth-habit types and six plant densities to measure canopy leaf area and leaf N accumulation at the beginning of seed fill. Plant spacing of 20 plants m−2 or more was sufficient to result in equal leaf area and N accumulation for all six plant genotypes at each location. However, the low-altitude, higher-temperature location had lower accumulated leaf N and yield than the high-altitude, cooler-temperature location. These results indicate attention needs to be given to physiological or agronomic approaches to overcome the negative impact of high temperature on N accumulation by common bean.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
Plant spacing of 20 plants m−2 or more gave leaf area and N accumulation equal across all six genotypes at each location.
- Taxon
- common bean
Phaseolus vulgarise0 - Material
- six plant genotypese1
- Treatment
- Plant spacing of 20 plants m−2 or moree1
- Outcome
- leaf area and N accumulatione1
- Direction
- equale1
- Setting
- two low-latitude locationse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For common bean (Phaseolus vulgaris L.)”
e1“Plant spacing of 20 plants m−2 or more was sufficient to result in equal leaf area and N accumulation for all six plant genotypes at each location”
e2“Field experiments were undertaken at two low-latitude locations”
Claim · model-written summary
The low-altitude, higher-temperature location had lower accumulated leaf N and yield than the high-altitude, cooler-temperature location.
- Taxon
- common beanPhaseolus vulgarise0
- Outcome
- accumulated leaf N and yielde3
- Direction
- lowere3
- Comparator
- high-altitude, cooler-temperature locatione3
- Setting
- low-altitude, higher-temperature locatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For common bean (Phaseolus vulgaris L.)”
e3“the low-altitude, higher-temperature location had lower accumulated leaf N and yield than the high-altitude, cooler-temperature location”
Claim · model-written summary
Physiological or agronomic approaches are needed to offset the negative effect of high temperature on N accumulation in common bean.
- Taxon
- common beanPhaseolus vulgarise4
- Outcome
- physiological or agronomic approaches to overcome the negative impact of high temperature on N accumulatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“These results indicate attention needs to be given to physiological or agronomic approaches to overcome the negative impact of high temperature on N accumulation by common bean”
The same questions in other papers
density · growth · Phaseolus vulgaris (common bean)Positive and negative results
8 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
12 papers more in this group
See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.