Abstract
A field experiment was conducted at the Punjab Agricultural University, Ludhiana in winter 1997–99 to study the control of Phalaris minor in relation to date of sowing, cultivar, planting pattern and weed control treatments. The 25th Oct. sown crop owing to its more dry matter production caused 26.9% reduction in dry matter accumulation by Phalaris and hence, resulted in 21.6% higher grain yield over 10th Nov. sown crop. No significant variation in grain yield was noticed in case of cultivars WH-542 and PBW-343. Narrow row spacing of 15 cm registered 15.5% reduction in dry matter production by Phalaris and thus gave 13.2% higher grain yield over normal spacing (22.5 cm). It was interesting that 25th Oct. sown crop maintained its superiority in suppressing P. minor even without the application of isoproturon compared with 10th Nov. sown crop with application of isoproturon at 0.94 kg ha−1. This study further envisaged that 25th Oct. sown crop produced more grain yield in closer spacing of 15 cm without isoproturon (0.94 kg ha−1) application than normal spacing of 22.5 cm in combination with isoproturon (0.94 kg ha−1) application, however, grain yield was statistically same in 10th Nov. sown crop under the same set of treatments.
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Claims 8
Claim · model-written summary
October 25 sowing reduced Phalaris dry matter by 26.9% relative to November 10 sowing.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- 25th Oct. sown crope0
- Outcome
- dry matter accumulation by Phalarise0
- Direction
- reductione0
- Value
- 26.9%e0
- Comparator
- 10th Nov. sown crope0
PhalarisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 25th Oct. sown crop owing to its more dry matter production caused 26.9% reduction in dry matter accumulation by Phalaris and hence, resulted in 21.6% higher grain yield over 10th Nov. sown crop.”
t0“Wheat”
Claim · model-written summary
October 25 sowing raised wheat grain yield 21.6% over November 10 sowing.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 25th Oct. sown crope0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 21.6%e0
- Comparator
- 10th Nov. sown crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 25th Oct. sown crop owing to its more dry matter production caused 26.9% reduction in dry matter accumulation by Phalaris and hence, resulted in 21.6% higher grain yield over 10th Nov. sown crop.”
t0“Wheat”
Claim · model-written summary
WH-542 and PBW-343 did not differ significantly in grain yield.
- Taxon
- WheatTriticum aestivumt0
- Material
- WH-542e0
- Outcome
- grain yielde0
- Direction
- No significant variatione0
- Comparator
- PBW-343e0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant variation in grain yield was noticed in case of cultivars WH-542 and PBW-343.”
t0“Wheat”
Claim · model-written summary
15 cm spacing reduced Phalaris dry matter 15.5% versus 22.5 cm.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Narrow row spacing of 15 cme0
- Outcome
- dry matter production by Phalarise0
- Direction
- reductione0
- Value
- 15.5%e0
- Comparator
- normal spacing (22.5 cm)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Narrow row spacing of 15 cm registered 15.5% reduction in dry matter production by Phalaris and thus gave 13.2% higher grain yield over normal spacing (22.5 cm).”
t0“Wheat”
Claim · model-written summary
15 cm spacing increased grain yield 13.2% versus 22.5 cm.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Narrow row spacing of 15 cme0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 13.2%e0
- Comparator
- normal spacing (22.5 cm)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Narrow row spacing of 15 cm registered 15.5% reduction in dry matter production by Phalaris and thus gave 13.2% higher grain yield over normal spacing (22.5 cm).”
t0“Wheat”
Claim · model-written summary
October 25 sowing without isoproturon suppressed P. minor better than November 10 sowing with isoproturon.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 25th Oct. sown crope0
- Interactor
- P. minor
.jpg?width=60)
Phalaris minore0weed - Outcome
- suppressing P. minore0
- Direction
- superioritye0
- Comparator
- 10th Nov. sown crop with application of isoproturon at 0.94 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“It was interesting that 25th Oct. sown crop maintained its superiority in suppressing P. minor even without the application of isoproturon compared with 10th Nov. sown crop with application of isoproturon at 0.94 kg ha−1.”
t0“Wheat”
Claim · model-written summary
October 25 sowing at 15 cm without isoproturon yielded more than 22.5 cm spacing with isoproturon.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- closer spacing of 15 cm without isoproturon (0.94 kg ha−1) applicatione0
- Outcome
- grain yielde0
- Direction
- moree0
- Comparator
- normal spacing of 22.5 cm in combination with isoproturon (0.94 kg ha−1) applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“25th Oct. sown crop produced more grain yield in closer spacing of 15 cm without isoproturon (0.94 kg ha−1) application than normal spacing of 22.5 cm in combination with isoproturon (0.94 kg ha−1) application”
t0“Wheat”
Claim · model-written summary
For November 10 sowing, grain yield was statistically the same between those spacing and herbicide treatments.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- same set of treatmentse0
- Outcome
- grain yielde0
- Direction
- statistically samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield was statistically same in 10th Nov. sown crop under the same set of treatments.”
t0“Wheat”
The same questions in other papers
isoproturon · yield · Triticum aestivum (wheat)Results differ
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- negative
- negative
- negative
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See all 89 papers →density · yield · Triticum aestivum (wheat)Positive and negative results
375 papers in the same direction as this paper · 115 in the opposite direction · 7 reporting no difference from an alternative
- no effect
- no effect
- no effect
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See all 498 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.