Abstract
The efficacy of seed treatment and foliar spray with fungicides in controlling black point incidence of wheat seeds was evaluated in the field. Two seed treating fungicides, namely Vitavax-200 and Homai-80WP were used @ 0.25% of dry seed weight and foliar spray with Tilt-250EC (0.05%) was applied in six different schedules. Untreated and unsprayed controls were also maintained. Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence. On the other hand, foliar sprays with Tilt-250EC under all the spray schedules except spraying at 70 and 90 DAS significantly minimized the disease severity over unsprayed control. Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield. Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS. Key Words: Seed treatment, foliar spray, black point, wheat. DOI: 10.3329/bjar.v34i3.3968 Bangladesh J. Agril. Res. 34(3) : 425-434, September 2009
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Claims 7
Claim · model-written summary
Seed treatment with Vitavax-200 or Homai-80WP significantly increased wheat plant population and grain yield compared with untreated controls.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Seed treatment with either Vitavax-200 or Homai-80WPe1
- Outcome
- plant population and grain yielde1
- Direction
- increasede1
- Comparator
- Untreated and unsprayed controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e1“Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence”
e2“Untreated and unsprayed controls were also maintained”
Claim · model-written summary
Seed treatment with Vitavax-200 or Homai-80WP did not reduce wheat black point incidence compared with untreated controls.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Seed treatment with either Vitavax-200 or Homai-80WPe1
- Outcome
- black point incidencee1
- Direction
- no_changeinferrede1
- Comparator
- Untreated and unsprayed controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e1“Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence”
e2“Untreated and unsprayed controls were also maintained”
Claim · model-written summary
Foliar sprays with Tilt-250EC significantly minimized wheat disease severity compared with unsprayed control, except for sprays at 70 and 90 DAS.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar sprays with Tilt-250ECe3
- Outcome
- disease severitye3
- Direction
- minimizede3
- Qualifier
- except spraying at 70 and 90 DASe3
- Comparator
- unsprayed controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e3“foliar sprays with Tilt-250EC under all the spray schedules except spraying at 70 and 90 DAS significantly minimized the disease severity over unsprayed control”
Claim · model-written summary
Spraying at 30, 40, 50, 60, 70, 80 and 90 DAS was the most effective schedule for reducing wheat black point incidence, similar to spraying at 30, 45, 60, 75 and 90 DAS.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- spraying at 30, 40, 50, 60, 70, 80, and 90 DASe4
- Outcome
- black point incidencee4
- Direction
- reducinge4
- Qualifier
- most effectivee4
- Comparator
- spraying at 30, 45, 60, 75, and 90 DASe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e4“Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield”
Claim · model-written summary
Spraying at 30, 40, 50, 60, 70, 80 and 90 DAS was the most effective schedule for increasing wheat grain yield, similar to spraying at 30, 45, 60, 75 and 90 DAS.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- spraying at 30, 40, 50, 60, 70, 80, and 90 DASe4
- Outcome
- grain yielde4
- Direction
- increasinge4
- Qualifier
- most effectivee4
- Comparator
- spraying at 30, 45, 60, 75, and 90 DASe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e4“Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield”
Claim · model-written summary
Five sprays at 30, 45, 60, 75 and 90 DAS gave the highest additional gross margin of Tk. 6120/ha in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- five sprays applied at 30, 45, 60, 75, and 90 DASe5
- Outcome
- additional gross margine5
- Direction
- higheste5
- Value
- Tk. 6120/hae5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e5“Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS”
Claim · model-written summary
The benefit-cost ratio of the five-spray schedule was 2.57.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- five sprays applied at 30, 45, 60, 75, and 90 DASe5
- Outcome
- BCRe5
- Value
- 2.57e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“controlling black point disease of wheat”
e5“Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS”
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