Abstract
Effect of weed interference duration and weed-free period on glufosinate-resistant rice was evaluated in 1998 and 1999. Weed interference for more than 2 wk reduced plant height 12 wk after emergence compared with the season-long weed-free treatment. Grain yield loss of 1,090 to 4,880 kg/ha was observed when weeds were allowed to interfere with rice from 2 wk to season-long. The weed-free period study indicated that early control of weeds could sustain rice growth and yield potential. This research suggests that effective weed control from 1 to 6 wk after rice emergence is important in fields with high weed densities for maximizing yield potential of glufosinate-resistant rice.Nomenclature: Glufosinate; rice, Oryza sativa L. ‘Bengal’, ‘BNGL HC-11’, ‘BNGL-62’.Additional index words: Herbicide-resistant rice.Abbreviation: WAE, wk after emergence.
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Claims 4
Claim · model-written summary
More than two weeks of weed interference reduced rice height at 12 weeks after emergence relative to season-long weed-free rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Weed interference for more than 2 wke0
- Interactor
- weede0weed
- Outcome
- plant heighte0
- Direction
- reducede0
- Comparator
- season-long weed-free treatmente0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed interference for more than 2 wk reduced plant height 12 wk after emergence compared with the season-long weed-free treatment.”
t0“Rice (Oryza sativa)”
Claim · model-written summary
Weed interference beginning at two weeks through the full season caused rice grain yield losses of 1,090 to 4,880 kg/ha.
- Taxon
- RiceOryza sativat0
- Treatment
- weeds were allowed to interfere with rice from 2 wk to season-longe0
- Interactor
- weede0weed
- Outcome
- Grain yielde0
- Direction
- losse0
- Value
- 1,090 to 4,880 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield loss of 1,090 to 4,880 kg/ha was observed when weeds were allowed to interfere with rice from 2 wk to season-long.”
t0“Rice (Oryza sativa)”
Claim · model-written summary
Early weed control could sustain rice growth and yield potential.
- Taxon
- RiceOryza sativat0
- Treatment
- early control of weedse0
- Interactor
- weede0weed
- Outcome
- rice growth and yield potentiale0
Not reportedComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The weed-free period study indicated that early control of weeds could sustain rice growth and yield potential.”
t0“Rice (Oryza sativa)”
Claim · model-written summary
The authors recommend effective weed control from one to six weeks after rice emergence to maximize yield potential in high-density weed fields.
- Taxon
- RiceOryza sativat0
- Interactor
- weede0weed
- Outcome
- effective weed control from 1 to 6 wk after rice emergencee0
- Qualifier
- fields with high weed densitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This research suggests that effective weed control from 1 to 6 wk after rice emergence is important in fields with high weed densities for maximizing yield potential of glufosinate-resistant rice.”
t0“Rice (Oryza sativa)”
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