Abstract
Recommendations for desiccation of alfalfa do not clearly define the stage at which desiccants should be applied. To obtain this information, diquat and glufosinate were applied to alfalfa (Medicago sativa L) from 1991 to 1994 at various stages of maturity to determine the effect of desiccant and stage of maturity at desiccation on seed yield 1000-seed weight and seed germinability. Alfalfa seed yields, 1000-seed weights, percent germination and percent viable seed were similar after desiccation with diquat and glufosinate. Desiccation when 60–75% of the alfalfa seed pods were brown permitted maximum seed yields. Percent germination increased slightly in seeds that were exposed to weathering under normal conditions until all pods turned brown. Both desiccants adequately desiccated alfalfa for harvesting but desiccation with glufosinate took 2 or 3 d longer than diquat. Desiccants did not reduce alfalfa growth in the spring after application. Key words: Germination, yield, hard seed, seed weight, stage
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Claims 7
Claim · model-written summary
Seed yields, 1000-seed weights and percent germination were similar after desiccation with diquat and glufosinate.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- diquat and glufosinatee1
- Outcome
- seed yields, 1000-seed weights, percent germinatione1
- Direction
- similare1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diquat and glufosinate were applied to alfalfa (Medicago sativa L)”
e1“Alfalfa seed yields, 1000-seed weights, percent germination and percent viable seed were similar after desiccation with diquat and glufosinate”
Claim · model-written summary
Percent viable seed was similar after desiccation with diquat and glufosinate.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- diquat and glufosinatee1
- Outcome
- percent viable seede1
- Direction
- similare1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diquat and glufosinate were applied to alfalfa (Medicago sativa L)”
e1“Alfalfa seed yields, 1000-seed weights, percent germination and percent viable seed were similar after desiccation with diquat and glufosinate”
Claim · model-written summary
Desiccation when 60–75% of the seed pods were brown gave maximum seed yields in alfalfa.
- Taxon
- alfalfaMedicago sativae2
- Treatment
- Desiccation when 60–75% of the alfalfa seed pods were browne2
- Outcome
- seed yieldse2
- Direction
- maximume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Desiccation when 60–75% of the alfalfa seed pods were brown permitted maximum seed yields”
Claim · model-written summary
Weathering under normal conditions until all pods turned brown increased alfalfa seed germination slightly.
- Taxon
- alfalfaMedicago sativae0
- Organ / stage
- seedse3
- Treatment
- weathering under normal conditions until all pods turned browne3
- Outcome
- Percent germinatione3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diquat and glufosinate were applied to alfalfa (Medicago sativa L)”
e3“Percent germination increased slightly in seeds that were exposed to weathering under normal conditions until all pods turned brown”
Claim · model-written summary
Desiccation with glufosinate took 2 or 3 days longer than with diquat in alfalfa.
- Taxon
- alfalfaMedicago sativae4
- Treatment
- glufosinatee4
- Outcome
- desiccatione4
- Direction
- longere4
- Value
- 2 or 3 de4
- Comparator
- diquate4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diquat and glufosinate were applied to alfalfa (Medicago sativa L)”
e4“Both desiccants adequately desiccated alfalfa for harvesting but desiccation with glufosinate took 2 or 3 d longer than diquat”
Claim · model-written summary
Both desiccants adequately desiccated alfalfa for harvesting.
- Taxon
- alfalfaMedicago sativae4
- Treatment
- Both desiccantse4
- Outcome
- adequately desiccatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Both desiccants adequately desiccated alfalfa for harvesting but desiccation with glufosinate took 2 or 3 d longer than diquat”
Claim · model-written summary
Desiccants did not reduce alfalfa growth in the spring after application.
- Taxon
- alfalfaMedicago sativae5
- Treatment
- Desiccantse5
- Outcome
- alfalfa growthe5
- Direction
- did not reducee5
- Setting
- springe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Desiccants did not reduce alfalfa growth in the spring after application”
The same questions in other papers
drought · yield · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 20 in the opposite direction
- negative
- negative
- negative
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See all 24 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.