Abstract
SUMMARY Effects of moisture stress during different stages of cotton development were examined in two experiments when temperatures were mild and evapotranspiration less than 6 mm./day. Two varieties of upland cotton, Acala 4–42 and Deltapine Smoothleaf, were affected similarly. Moisture stress at the beginning of flowering reduced growth rate and the numbers of flowers and bolls. During the second half of the flowering period it reduced the percentage of boll retention, boll number, boll weight, seed index, lint index and lint length. Stress during boll development had similar effects and caused earlier maturity. Lint yield was reduced significantly by moisture stress during each of the periods but tensile strength of lint was not affected. Three irrigations, if properly timed so that no appreciable moisture stress occurred, were sufficient for high yields and good quality of lint, and the first could be postponed until after flowering began without any loss in yield.
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Claims 10
Claim · model-written summary
The two cotton varieties responded similarly.
Verbatim
e0“Two varieties of upland cotton, Acala 4–42 and Deltapine Smoothleaf, were affected similarly”
Claim · model-written summary
Stress at flowering onset reduced growth rate and flower and boll numbers.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Moisture stress at the beginning of floweringe0
- Outcome
- growth rate and the numbers of flowers and bollse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moisture stress at the beginning of flowering reduced growth rate and the numbers of flowers and bolls”
t0“Upland Cotton”
Claim · model-written summary
Stress in the latter half of flowering reduced boll retention, number and weight.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- second half of the flowering periode0
- Outcome
- percentage of boll retention, boll number, boll weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the second half of the flowering period it reduced the percentage of boll retention, boll number, boll weight, seed index, lint index and lint length”
t0“Upland Cotton”
Claim · model-written summary
Stress in the latter half of flowering reduced seed index, lint index and lint length.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- second half of the flowering periode0
- Outcome
- seed index, lint index and lint lengthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the second half of the flowering period it reduced the percentage of boll retention, boll number, boll weight, seed index, lint index and lint length”
t0“Upland Cotton”
Claim · model-written summary
Stress during boll development had similar adverse effects.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Stress during boll developmente0
- Outcome
- similar effectse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress during boll development had similar effects and caused earlier maturity”
t0“Upland Cotton”
Claim · model-written summary
Stress during boll development caused earlier maturity.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Stress during boll developmente0
- Outcome
- maturitye0
- Direction
- earliere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress during boll development had similar effects and caused earlier maturity”
t0“Upland Cotton”
Claim · model-written summary
Moisture stress in each period significantly reduced lint yield.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- moisture stress during each of the periodse0
- Outcome
- Lint yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint yield was reduced significantly by moisture stress during each of the periods”
t0“Upland Cotton”
Claim · model-written summary
Moisture stress did not affect lint tensile strength.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- moisture stresse1
- Outcome
- tensile strength of linte0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tensile strength of lint was not affected”
e1“by moisture stress during each of the periods”
t0“Upland Cotton”
Claim · model-written summary
Three well-timed irrigations sufficed for high lint yield and good quality.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- Three irrigations, if properly timed so that no appreciable moisture stress occurrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three irrigations, if properly timed so that no appreciable moisture stress occurred, were sufficient for high yields and good quality of lint”
t0“Upland Cotton”
Claim · model-written summary
The first irrigation could be postponed until after flowering began without yield loss.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- postponed until after flowering begane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the first could be postponed until after flowering began without any loss in yield”
t0“Upland Cotton”
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