Abstract
ABSTRACT Dry direct‐seeded rice (DSR) is an alternative and socio‐economically viable technology addressing the trade‐offs associated with the conventional puddle transplanted rice system. But inadequate establishment and higher incidence of some diseases such as brown spot and neck blast are the major reasons for the lack of scaling of DSR. In order to address the above issues, experiments were conducted to evaluate the combined impact of seed priming and seed treatment with fungicide (mancozeb 50% + carbendazim 25% WP) on the disease development, crop growth and yield attributes of direct seeded Basmati rice under laboratory and field conditions. Low disease severity of bacterial blight, brown spot, foot rot, neckblast, bunt and grain discoloration was observed when seeds were hormoprimed with 25 ppm GA 3 + fungicide seed treatment. Similar levels of disease suppression were observed for halopriming with 2% KNO 3 + fungicide seed treatment. Seed halopriming with 2% KNO 3 and hormopriming with 25 ppm GA 3 either alone or combined with fungicide treatment caused significant enhancement in germination percentage and seedling growth as compared to the untreated control under both laboratory and field conditions. These treatments also exhibited the highest plant population per m 2 , panicle number per m 2 , panicle weight and number of filled grains, leading to higher grain yields than in the remaining treatments.
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Claims 6
Claim · model-written summary
GA3 hormopriming with fungicide gave low severity of six rice diseases.
- Taxon
- Basmati Ricet0
- Treatment
- 25 ppm GA 3 + fungicide seed treatmente0
- Outcome
- disease severity of bacterial blight, brown spot, foot rot, neckblast, bunt and grain discoloratione0
- Direction
- Lowe0
Not reportedComparator
Verbatim
e0“Low disease severity of bacterial blight, brown spot, foot rot, neckblast, bunt and grain discoloration was observed when seeds were hormoprimed with 25 ppm GA 3 + fungicide seed treatment.”
t0“Basmati Rice”
Claim · model-written summary
KNO3 halopriming with fungicide similarly suppressed rice diseases.
- Taxon
- Basmati Ricet0
- Treatment
- halopriming with 2% KNO 3 + fungicide seed treatmente0
- Outcome
- disease suppressione0
Not reportedComparatorDirection
Verbatim
e0“Similar levels of disease suppression were observed for halopriming with 2% KNO 3 + fungicide seed treatment.”
t0“Basmati Rice”
Claim · model-written summary
KNO3 halopriming alone or with fungicide significantly increased rice germination and seedling growth against untreated controls.
Verbatim
e0“Seed halopriming with 2% KNO 3 and hormopriming with 25 ppm GA 3 either alone or combined with fungicide treatment caused significant enhancement in germination percentage and seedling growth as compared to the untreated control under both laboratory and field conditions.”
t0“Basmati Rice”
Claim · model-written summary
GA3 hormopriming alone or with fungicide significantly increased rice germination and seedling growth against untreated controls.
Verbatim
e0“Seed halopriming with 2% KNO 3 and hormopriming with 25 ppm GA 3 either alone or combined with fungicide treatment caused significant enhancement in germination percentage and seedling growth as compared to the untreated control under both laboratory and field conditions.”
t0“Basmati Rice”
Claim · model-written summary
The seed treatments gave the highest rice plant population, panicle traits, and filled grain numbers.
Verbatim
e0“These treatments also exhibited the highest plant population per m 2 , panicle number per m 2 , panicle weight and number of filled grains, leading to higher grain yields than in the remaining treatments.”
t0“Basmati Rice”
Claim · model-written summary
The seed treatments produced higher rice grain yield than remaining treatments.
Verbatim
e0“These treatments also exhibited the highest plant population per m 2 , panicle number per m 2 , panicle weight and number of filled grains, leading to higher grain yields than in the remaining treatments.”
t0“Basmati Rice”
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