Abstract
Abstract Water deficits can affect peanut yields differentially depending on time of occurrence and intensity. Previous reports have shown that moderate water deficit during the preflowering phase increases pod yields by 13 to 19% relative to the fully irrigated control. This paper describes, in a more quantitative way, crop physiological factors that contribute to these increased yields. In the 1980 to 1981 and 1981 to 1982 postrainy seasons, a study was conducted on a medium deep Alfisol at the International Crop Research Institute for the Semi‐Arid Tropics (ICRISAT) in central India, to examine the responses of peanut ( Arachis hypogaea L.), cv. Robut 33‐1, under three levels of soil water deficits during preflowering phase relative to an adequately irrigated control. Three intensities of drought were created (from 10–50 d after sowing [DAS]) using‐line source sprinkler irrigation, while the control was irrigated at 10‐d intervals. Moderate water deficits during the preflowering phase increased subsequent crop growth and pod growth rates in 1980 to 1981 but not in 1981 to 1982. Differences in flowering and total pod numbers between treatments were relatively small when compared to the subsequent differences in pod setting and maturity. In both seasons, greater synchrony of pod set in the moderately stressed plots resulted in a greater proportion of mature pods at final harvest. The most severely stressed plot had lower yields despite adequate irrigation subsequent to the preflowering water deficits.
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Claims 7
Claim · model-written summary
Moderate preflowering water deficits increased later crop growth in 1980 to 1981 but not 1981 to 1982.
- Taxon
- peanut
Arachis hypogaeae1 - Material
- Robut 33‐1e1
- Treatment
- Moderate water deficits during the preflowering phasee0
- Outcome
- subsequent crop growthe0
- Direction
- increasede0
- Qualifier
- in 1980 to 1981 but not in 1981 to 1982e0
- Comparator
- an adequately irrigated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moderate water deficits during the preflowering phase increased subsequent crop growth and pod growth rates in 1980 to 1981 but not in 1981 to 1982.”
e1“responses of peanut ( Arachis hypogaea L.), cv. Robut 33‐1, under three levels of soil water deficits during preflowering phase relative to an adequately irrigated control”
Claim · model-written summary
Moderate preflowering water deficits increased later pod growth rates in 1980 to 1981 but not 1981 to 1982.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- Moderate water deficits during the preflowering phasee0
- Outcome
- pod growth ratese0
- Direction
- increasede0
- Qualifier
- in 1980 to 1981 but not in 1981 to 1982e0
- Comparator
- an adequately irrigated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moderate water deficits during the preflowering phase increased subsequent crop growth and pod growth rates in 1980 to 1981 but not in 1981 to 1982.”
e1“responses of peanut ( Arachis hypogaea L.), cv. Robut 33‐1, under three levels of soil water deficits during preflowering phase relative to an adequately irrigated control”
Claim · model-written summary
Treatment differences in flowering were relatively small compared with later pod setting and maturity differences.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- Differences in floweringe0
- Direction
- relatively smalle0
- Comparator
- subsequent differences in pod setting and maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut”
e0“Differences in flowering and total pod numbers between treatments were relatively small when compared to the subsequent differences in pod setting and maturity.”
Claim · model-written summary
Treatment differences in total pod numbers were relatively small compared with later pod setting and maturity differences.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- total pod numberse0
- Direction
- relatively smalle0
- Comparator
- subsequent differences in pod setting and maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut”
e0“Differences in flowering and total pod numbers between treatments were relatively small when compared to the subsequent differences in pod setting and maturity.”
Claim · model-written summary
Moderate stress increased synchrony of pod set in both seasons.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- moderately stressed plotse0
- Outcome
- synchrony of pod sete0
- Direction
- greatere0
- Qualifier
- In both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut”
e0“In both seasons, greater synchrony of pod set in the moderately stressed plots resulted in a greater proportion of mature pods at final harvest.”
Claim · model-written summary
Moderately stressed plots had a greater mature pod proportion at harvest in both seasons.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- moderately stressed plotse0
- Outcome
- proportion of mature pods at final harveste0
- Direction
- greatere0
- Qualifier
- In both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut”
e0“In both seasons, greater synchrony of pod set in the moderately stressed plots resulted in a greater proportion of mature pods at final harvest.”
Claim · model-written summary
The most severely stressed plot had lower yields despite later adequate irrigation.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- most severely stressed plote0
- Outcome
- yieldse0
- Direction
- lowere0
- Qualifier
- despite adequate irrigation subsequent to the preflowering water deficitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut”
e0“The most severely stressed plot had lower yields despite adequate irrigation subsequent to the preflowering water deficits.”
The same questions in other papers
drought · growth · Arachis hypogaea (peanut)Results differ
19 papers in the same direction as this paper · 38 in the opposite direction
- negative
- negative
- negative
54 papers more in this group
See all 58 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.