Abstract
Abstract Yield loss in potato damaged by hail is mainly caused by reduced leaf area and plant stand. A 2-year field experiment was conducted to investigate the effect of simulated hail damage on potato yield. The treatments were six levels of defoliation (control, 20, 40, 60, 80 and 100%) and five defoliation times (2, 5, 8, 11 and 14 weeks after emergence). The experiment was set up in a randomized block design with four replications, and the treatments were arranged as a factorial. From the perspective of yield loss, the most important time of defoliation, for mild and intense defoliation, respectively, were 8–11 and 5–11 weeks after emergence. The period between 5 and 8 weeks includes the stages of tuber initiation and tuber growth; the stages most sensitive to removal of aerial parts. Regardless of defoliation intensity, the production of small potatoes mostly occurred when defoliation occurred at 2 and 5 weeks. Plants were able to recover from any level of defoliation if it occurred at an early stage. In summary, yield reduction was little influenced by intensity of defoliation, but the timing of defoliation was evidently the most important factor. Keywords: damagedefoliationshootstuber formationyield Acknowledgements The author wishes to thank the Agricultural and Natural Resources Research Center, Isfahan, Islamic Republic of Iran for financial support.
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Claims 5
Claim · model-written summary
For intense defoliation, the most important time of defoliation for potato yield loss was 5-11 weeks after emergence.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- intense defoliatione0
- Outcome
- yield losse0
- Direction
- most importante0
- Value
- 5–11e0
- Qualifier
- weeks after emergencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“From the perspective of yield loss, the most important time of defoliation, for mild and intense defoliation, respectively, were 8–11 and 5–11 weeks after emergence”
Claim · model-written summary
The period between 5 and 8 weeks after emergence, including tuber initiation and tuber growth, was the stage most sensitive to removal of aerial parts.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- tuber initiation and tuber growthe0
- Outcome
- stages most sensitive to removal of aerial partse0
- Qualifier
- The period between 5 and 8 weekse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“The period between 5 and 8 weeks includes the stages of tuber initiation and tuber growth; the stages most sensitive to removal of aerial parts”
Claim · model-written summary
Regardless of defoliation intensity, production of small potatoes mostly occurred when defoliation occurred at 2 and 5 weeks.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- defoliation occurred at 2 and 5 weekse0
- Outcome
- production of small potatoese0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“Regardless of defoliation intensity, the production of small potatoes mostly occurred when defoliation occurred at 2 and 5 weeks”
Claim · model-written summary
Potato plants were able to recover from any level of defoliation if it occurred at an early stage.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- recover from any level of defoliatione0
- Qualifier
- if it occurred at an early stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“Plants were able to recover from any level of defoliation if it occurred at an early stage”
Claim · model-written summary
Potato yield reduction was little influenced by the intensity of defoliation.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- intensity of defoliatione0
- Outcome
- yield reductione0
- Direction
- little influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“yield reduction was little influenced by intensity of defoliation”
The same questions in other papers
pruning · yield · Solanum tuberosum (potato)Results differ
7 papers in the same direction as this paper · 8 in the opposite direction
- negative
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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.