Abstract
An experiment was laid out to study the effect of different weed management practices and row spacings on the yieldand yield components of wheat variety Karaj-2 during 2005 – 2006 at Agronomy Research Farm, University College ofAgricultural and Natural Resource, University of Tehran. Wheat was sown at row spacing of 20, 30 and 40 cm, whileherbicides applied were broad spectrum 2,4-D butyl Ester: 72 EC + Isoproturon 75 WP @ 865 ml and 865 g ha-1respectively, broad leaf Buctril M 40 EC @ 1.25 liter ha-1 and a weedy check (no herbicide). Row spacing significantlyaffected all parameters. Minimum weeds density m-2 and maximum spikelets spike-1, grain yield, harvest index and netincome were found in 20 cm row spacing. While number of grains spike-1 were highest in 30 cm row spacing. Amongherbicides, minimum weeds density m-2 and maximum spikelets spike-1, grains spike-1, grain yield, harvest index andnet income were found in plots treated with broad-spectrum herbicide followed by Buctril-M 40 and the weedy check,respectively. It is concluded that maximum grain yield and net income can be obtained using broad spectrum (grasses +broad leaved) herbicides and narrow row spacing.
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Claims 9
Claim · model-written summary
The 20 cm row spacing had the minimum weed density.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 cm row spacinge2
- Outcome
- weeds density m-2e2
- Direction
- Minimume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e2“Minimum weeds density m-2 and maximum spikelets spike-1, grain yield, harvest index and net income were found in 20 cm row spacing”
Claim · model-written summary
The 20 cm row spacing had maximum spikelets per spike and grain yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 20 cm row spacinge2
- Outcome
- spikelets spike-1, grain yielde2
- Direction
- maximume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e2“Minimum weeds density m-2 and maximum spikelets spike-1, grain yield, harvest index and net income were found in 20 cm row spacing”
Claim · model-written summary
The 20 cm row spacing had maximum harvest index and net income.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 20 cm row spacinge2
- Outcome
- harvest index and net incomee2
- Direction
- maximume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e2“Minimum weeds density m-2 and maximum spikelets spike-1, grain yield, harvest index and net income were found in 20 cm row spacing”
Claim · model-written summary
The 30 cm row spacing had the highest number of grains per spike.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 30 cm row spacinge5
- Outcome
- number of grains spike-1e5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e5“While number of grains spike-1 were highest in 30 cm row spacing”
Claim · model-written summary
Broad-spectrum herbicide had the minimum weed density, compared with Buctril-M 40 and the weedy check.
- Taxon
- wheatTriticum aestivume0
- Treatment
- broad-spectrum herbicidee3
- Outcome
- weeds density m-2e3
- Direction
- minimume3
- Comparator
- Buctril-M 40 and the weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e3“Among herbicides, minimum weeds density m-2 and maximum spikelets spike-1, grains spike-1, grain yield, harvest index and net income were found in plots treated with broad-spectrum herbicide followed by Buctril-M 40 and the weedy check, respectively”
Claim · model-written summary
Broad-spectrum herbicide had maximum spikelets, grains per spike and grain yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- broad-spectrum herbicidee3
- Outcome
- spikelets spike-1, grains spike-1, grain yielde3
- Direction
- maximume3
- Comparator
- Buctril-M 40 and the weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e3“Among herbicides, minimum weeds density m-2 and maximum spikelets spike-1, grains spike-1, grain yield, harvest index and net income were found in plots treated with broad-spectrum herbicide followed by Buctril-M 40 and the weedy check, respectively”
Claim · model-written summary
Broad-spectrum herbicide had maximum harvest index and net income.
- Taxon
- wheatTriticum aestivume0
- Treatment
- broad-spectrum herbicidee3
- Outcome
- harvest index and net incomee3
- Direction
- maximume3
- Comparator
- Buctril-M 40 and the weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e3“Among herbicides, minimum weeds density m-2 and maximum spikelets spike-1, grains spike-1, grain yield, harvest index and net income were found in plots treated with broad-spectrum herbicide followed by Buctril-M 40 and the weedy check, respectively”
Claim · model-written summary
Maximum grain yield and net income can be obtained with broad-spectrum herbicides and narrow row spacing.
- Taxon
- wheatTriticum aestivume0
- Treatment
- broad spectrum (grasses + broad leaved) herbicides and narrow row spacinge4
- Outcome
- maximum grain yield and net incomee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e4“It is concluded that maximum grain yield and net income can be obtained using broad spectrum (grasses + broad leaved) herbicides and narrow row spacing”
Claim · model-written summary
Row spacing significantly affected all measured parameters.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Row spacinge1
- Outcome
- all parameterse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield components of wheat variety Karaj-2”
e1“Row spacing significantly affected all parameters”
The same questions in other 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
- positive
- no effect
- no effect
494 papers more in this group
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