Abstract
The peanut ( Arachis hypogae L.) crop is frequently subjected to water deficit during the growing season. This study was conducted to determine the effect of water received by the crop on the germinability and vigor of the subsequent seed generation. Two peanut genotypes, ‘Comet’ and breeding line OK‐FH15, were grown under both rainfed and irrigated conditions on a Teller sandy loam (fine, mixed, thermic Udic Argiustoll) soil in 0.91‐m wide rows using standard agronomic practices. Pods were harvested, dried, and shelled. Only mature seeds(those with smooth seed coats and riding at least a 5.95 by 19.05 mm slotted screen) were used in the tests. Seeds were germinated at 29 ± 1 °C in 2‐L flasks fitted with two sheets of 15.0‐cm Whatman no. 5 filter paper. Ethylene and CO 2 were quantitatively determined by gas chromatography. Germination ranged from 94 to 100%, but was lowest for seeds produced under water deficit. Maximum C 2 H 4 production occurred at 22 to 24 h of germination during hypocotyl‐radicle emergence. Carbon dioxide production was maximized 24 h later, or rose slowly thereafter. Water deficit during seed production affected both C 2 H 4 and CO 2 production during subsequent germination. The most consistent response to water deficit was reduction in the fraction of rapidly growing seedlings (those with hypocotyl‐radicle longer than 20 mm at.72 h of germination. Thus, water deficit during seed development affects subsequent growth of seedlings and could pose a problem in establishment for the succeeding crop. A minimum of 500 mm of water was necessary to produce a crop of seeds with high potential for germination and a high proportion of vigorous seedlings.
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Claims 7
Claim · model-written summary
Germination was 94 to 100% and lowest for seeds produced under water deficit.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- water deficite1
- Outcome
- Germinatione1
- Direction
- loweste1
- Value
- 94 to 100%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“Germination ranged from 94 to 100%, but was lowest for seeds produced under water deficit.”
Claim · model-written summary
Maximum ethylene production occurred 22 to 24 hours into germination during hypocotyl-radicle emergence.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- hypocotyl‐radicle emergencee1
- Outcome
- C 2 H 4 productione1
- Direction
- Maximume1
- Value
- 22 to 24 he1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“Maximum C 2 H 4 production occurred at 22 to 24 h of germination during hypocotyl‐radicle emergence.”
Claim · model-written summary
Carbon dioxide production peaked 24 hours later or rose slowly thereafter.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- Carbon dioxide productione1
- Direction
- maximizede1
- Value
- 24 he1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“Carbon dioxide production was maximized 24 h later, or rose slowly thereafter.”
Claim · model-written summary
Water deficit during seed production affected ethylene production during later germination, with direction unstated.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Water deficit during seed productione1
- Outcome
- C 2 H 4 productione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“Water deficit during seed production affected both C 2 H 4 and CO 2 production during subsequent germination.”
e2“Maximum C 2 H 4 production occurred at 22 to 24 h of germination during hypocotyl‐radicle emergence.”
Claim · model-written summary
Water deficit during seed production affected carbon dioxide production during later germination, with direction unstated.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Water deficit during seed productione1
- Outcome
- CO 2 productione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“Water deficit during seed production affected both C 2 H 4 and CO 2 production during subsequent germination.”
Claim · model-written summary
Water deficit reduced the fraction of rapidly growing seedlings.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- water deficite1
- Outcome
- fraction of rapidly growing seedlingse1
- Direction
- reductione1
- Qualifier
- hypocotyl‐radicle longer than 20 mm at.72 h of germinatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“The most consistent response to water deficit was reduction in the fraction of rapidly growing seedlings (those with hypocotyl‐radicle longer than 20 mm at.72 h of germination.”
Claim · model-written summary
At least 500 mm of water was needed to produce seeds with high germination potential and many vigorous seedlings.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- A minimum of 500 mm of watere1
- Outcome
- produce a crop of seeds with high potential for germination and a high proportion of vigorous seedlingse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut ( Arachis hypogae L.) crop”
e1“A minimum of 500 mm of water was necessary to produce a crop of seeds with high potential for germination and a high proportion of vigorous seedlings.”
The same questions in other papers
drought · growth · Arachis hypogaea (peanut)Results differ
37 papers in the same direction as this paper · 20 in the opposite direction
- positive
- positive
- positive
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.