Claim · model-written summary
With moisture stress, determinate cultivars in 20- and 30-in. rows may produce more than in 10-in. rows.
- Taxon
- Glycine max
Glycine maxe5 - Material
- determinate cultivarse6
- Treatment
- moisture stresse6
- Outcome
- producee6
- Direction
- moree6
- Comparator
- 10‐in. rowse6
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“with moisture stress, determinate cultivars in 20‐ and 30‐in. rows may produce more than in 10‐in. rows”
e5“Soybean [ Glycine max (L.) Merr.] are grown”
Title
Soybean Cultivar Responses to Row Spacing and Seeding Rates in Rainfed and Irrigated Environments
Roger W. Elmore jpa 1998. doi:10.2134/jpa1998.0326
Other claims from this paper (16)
- Intervention effect Determinate cultivar yield increased 42% as seeding rate rose from 45 000 to 140 000 seeds/acre.
- Intervention effect Determinate cultivar yield remained constant as seeding rate increased above 140 000 seeds/acre.
- Intervention effect Seeding rate did not affect indeterminate cultivar yield.
- Intervention effect The 20-in. row spacing consistently gave the greatest soybean yields.
- Intervention effect Yield of indeterminate cultivars was greater with 20‐in. rows than with 10‐ or 30‐in. rows in both water regimes.
- Intervention effect Yield of determinate cultivars with irrigation was greater with 20‐in. rows than with 10‐ or 30‐in. rows.
- Intervention effect Yield of determinate cultivars in rainfed fields was similar in 20- and 30-in. rows.
- Intervention effect Yield of determinate cultivars in rainfed fields was less in 10-in. rows than in 20- and 30-in. rows.
- Recommendation The optimum row spacing for all cultivars in both water regimes was 20 in.
- Intervention effect The 140 000 seeds/acre seeding rate maximized yield or gave yields equal to the highest.
- Intervention effect Yields at the three highest seeding rates were greater than at the lowest seeding rate.
- Association The yield difference between 45 000 and 140 000 seeds/acre was greater with irrigation than with rainfed.
- Observation There was no row spacing by seeding rate interaction for yield.
- Intervention effect Determinate cultivars in high-yield environments increased yield between 45 000 and 140 000 seeds/acre.
- Intervention effect Yield was similar at higher seeding rates, contrary to other reports.
- Intervention effect The 20-in. row spacing consistently gave the highest yields at all five sites, 31 and 48 bu/acre for rainfed and irrigated.