Abstract
In field plot experiments conducted in southern Alberta over a 6-yr period, highest seed yields of alfalfa (Medicago sativa L. cv. Beaver) were obtained with one or two irrigations in the first half of the growing season. In outdoor lysimeters protected from rain, moisture stress for more than 8 days before seed ripening severely reduced seed production. Under field conditions, stored soil moisture from irrigation during the vegetative stage of growth plus occasional rain in July and August permitted irrigation of alfalfa for seed to be stopped at the bud to early bloom stage (June to early July).
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Claims 3
Claim · model-written summary
One or two irrigations in the first half of the growing season gave the highest alfalfa seed yields.
- Taxon
- alfalfa
Medicago sativae0 - Material
- cv. Beavere0
- Treatment
- one or two irrigations in the first half of the growing seasone0
- Outcome
- seed yieldse0
- Direction
- higheste0
- Setting
- southern Albertae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field plot experiments conducted in southern Alberta over a 6-yr period, highest seed yields of alfalfa (Medicago sativa L. cv. Beaver) were obtained with one or two irrigations in the first half of the growing season”
Claim · model-written summary
Moisture stress lasting over eight days before ripening severely reduced alfalfa seed production in rain-protected outdoor lysimeters.
- Treatment
- moisture stress for more than 8 days before seed ripeninge0
- Outcome
- seed productione0
- Direction
- severely reducede0
- Setting
- outdoor lysimeters protected from raine0
Not reportedTaxonComparator
Verbatim
e0“In outdoor lysimeters protected from rain, moisture stress for more than 8 days before seed ripening severely reduced seed production”
Claim · model-written summary
Field irrigation for alfalfa seed could stop at bud to early bloom when vegetative-stage stored moisture was supplemented by occasional July and August rain.
- Taxon
- alfalfaMedicago sativae0
- Outcome
- irrigation of alfalfa for seed to be stopped at the bud to early bloom stagee0
- Qualifier
- plus occasional rain in July and Auguste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under field conditions, stored soil moisture from irrigation during the vegetative stage of growth plus occasional rain in July and August permitted irrigation of alfalfa for seed to be stopped at the bud to early bloom stage (June to early July)”
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