Abstract
SUMMARY Growth of two cultivars of Vicia faba , under various conditions of moisture status, was analysed in terms of solar radiation absorbed by their foliage. The relationship between dry‐matter production and absorbed photosynthetically active radiation was linear throughout the growing season for both cultivars (Minica and Alfred) and for all levels of soil moisture status. A straight line was used, the slope of which represented a constant mean seasonal ‘efficiency’ of conversion of radiation into biomass. Moisture stress reduced both the amount of radiation intercepted, by limiting the size of the canopy, and the efficiency of its conversion into dry matter. Efficiency of both cultivars grown under optimal water regimes was similar, however, drought had a more drastic effect on conversion efficiency of Minica. Mean crop growth rates were highly dependent upon both absorption and efficiency, as were maximum crop growth rates during the linear portion of growth. Reductions in seed yield were similar to trends in total biomass production. Harvest index was reduced by moisture stress in Minica, and increased to compensate for dry‐matter loss in Alfred.
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Claims 9
Claim · model-written summary
Dry matter production was linearly related to absorbed photosynthetically active radiation across the season, cultivars and soil moisture levels.
- Taxon
- Vicia faba
Vicia fabat0 - Material
- Minica and Alfrede0
- Organ / stage
- growing seasone0
- Outcome
- dry‐matter productione0
- Direction
- lineare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relationship between dry‐matter production and absorbed photosynthetically active radiation was linear throughout the growing season for both cultivars (Minica and Alfred) and for all levels of soil moisture status.”
t0“Vicia faba”
Claim · model-written summary
Moisture stress reduced intercepted radiation by limiting canopy size.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Moisture stresse0
- Outcome
- amount of radiation interceptede0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moisture stress reduced both the amount of radiation intercepted, by limiting the size of the canopy, and the efficiency of its conversion into dry matter.”
t0“Vicia faba”
Claim · model-written summary
Moisture stress reduced radiation conversion efficiency.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Moisture stresse0
- Outcome
- efficiency of its conversion into dry mattere0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moisture stress reduced both the amount of radiation intercepted, by limiting the size of the canopy, and the efficiency of its conversion into dry matter.”
t0“Vicia faba”
Claim · model-written summary
The two cultivars had similar conversion efficiency under optimal water regimes.
- Taxon
- Vicia fabaVicia fabat0
- Material
- both cultivarse0
- Outcome
- Efficiencye0
- Direction
- similare0
- Qualifier
- optimal water regimese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Efficiency of both cultivars grown under optimal water regimes was similar, however, drought had a more drastic effect on conversion efficiency of Minica.”
t0“Vicia faba”
Claim · model-written summary
Drought reduced conversion efficiency more strongly in Minica.
- Taxon
- Vicia fabaVicia fabat0
- Material
- Minicae0
- Treatment
- droughte0
- Outcome
- conversion efficiencye0
- Direction
- more drastice0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Efficiency of both cultivars grown under optimal water regimes was similar, however, drought had a more drastic effect on conversion efficiency of Minica.”
t0“Vicia faba”
Claim · model-written summary
Mean and maximum crop growth rates depended strongly on radiation absorption and efficiency.
- Taxon
- Vicia fabaVicia fabat0
- Outcome
- Mean crop growth ratese0
- Qualifier
- maximum crop growth rates during the linear portion of growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean crop growth rates were highly dependent upon both absorption and efficiency, as were maximum crop growth rates during the linear portion of growth.”
t0“Vicia faba”
Claim · model-written summary
Seed yield reductions followed trends in total biomass production.
- Taxon
- Vicia fabaVicia fabat0
- Outcome
- seed yielde0
- Direction
- Reductionse0
- Comparator
- total biomass productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reductions in seed yield were similar to trends in total biomass production.”
t0“Vicia faba”
Claim · model-written summary
Moisture stress reduced harvest index in Minica.
- Taxon
- Vicia fabaVicia fabat0
- Material
- Minicae0
- Treatment
- moisture stresse0
- Outcome
- Harvest indexe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvest index was reduced by moisture stress in Minica, and increased to compensate for dry‐matter loss in Alfred.”
t0“Vicia faba”
Claim · model-written summary
Moisture stress increased harvest index in Alfred, compensating for dry matter loss.
- Taxon
- Vicia fabaVicia fabat0
- Material
- Alfrede0
- Treatment
- moisture stresse0
- Outcome
- Harvest indexe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvest index was reduced by moisture stress in Minica, and increased to compensate for dry‐matter loss in Alfred.”
t0“Vicia faba”
The same questions in other papers
drought · yield · Vicia faba (faba bean)Results differ
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- no effect
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See all 32 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.