Abstract
Abstract Most crops of grain sorghum are grown under conditions of limited irrigation or rainfall. Reduction of the degree and length of periods of moisture stress through the use of antitranspirants to control stomatal opening may increase the amount of time when photosynthesis takes place thus increasing crop yield with the water available. The purpose of this study was to determine the proper material, method, and timing of application for field use. Under limited irrigation conditions in the field, grain sorghum ( Sorghum bicolor (L.) Moench) was sprayed at various rates and times with phenylmercuric acetate (PMA), atrazine, and Folicote. Mean grain yield increases of 5 to 17% were obtained, indicating considerable economic possibility. Rates of application required were aproximately 60 g/ha for PMA, 130 g/ha for atrazine, and 2 liters/ha for Folicote. However, more work is needed on rates and volume of spray. Application just prior to the boot stage was more effective than a later application.
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Claims 3
Claim · model-written summary
Antitranspirant sprays (PMA, atrazine, Folicote) on grain sorghum under limited irrigation in the field increased mean grain yield by 5 to 17%.
- Taxon
- grain sorghum
Sorghum bicolore2 - Treatment
- phenylmercuric acetate (PMA), atrazine, and Folicotee2
- Outcome
- grain yielde1
- Direction
- increasese1
- Value
- 5 to 17%e1
- Qualifier
- limited irrigation conditionse3
- Setting
- in the fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mean grain yield increases of 5 to 17% were obtained”
e2“grain sorghum ( Sorghum bicolor (L.) Moench) was sprayed at various rates and times with phenylmercuric acetate (PMA), atrazine, and Folicote”
e3“Under limited irrigation conditions in the field”
Claim · model-written summary
Applying the sprays just before the boot stage was more effective than a later application in grain sorghum.
- Taxon
- grain sorghumSorghum bicolore2
- Organ / stage
- boot stagee5
- Treatment
- Application just prior to the boot stagee5
- Outcome
- more effectivee5
- Direction
- more effectivee5
- Comparator
- a later applicatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Application just prior to the boot stage was more effective than a later application”
e2“grain sorghum ( Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Required application rates in grain sorghum were about 60 g/ha for PMA, 130 g/ha for atrazine and 2 liters/ha for Folicote.
- Taxon
- grain sorghumSorghum bicolore2
- Outcome
- Rates of application requirede4
- Value
- 60 g/ha for PMA, 130 g/ha for atrazine, and 2 liters/ha for Folicotee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Rates of application required were aproximately 60 g/ha for PMA, 130 g/ha for atrazine, and 2 liters/ha for Folicote”
e2“grain sorghum ( Sorghum bicolor (L.) Moench)”
The same questions in other papers
atrazine · yield · Sorghum bicolor (sorghum)Results differ
18 papers in the same direction as this paper · 6 in the opposite direction
- positive
- no effect
- negative
21 papers more in this group
See all 25 papers →phenylmercury acetate · yield · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
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.