Abstract
Character association among grain yield and its component traits was studied through phenotypic correlation coefficients and path analysis. Grain yield exhibited positive and significant association with panicle length, grain weight and panicle bearing tillers plant−1. Spikelets panicle−1 showed highest direct positive effect on grain yield followed by panicle bearing tillers plant−1• It is realized that direct selection for longer panicle, higher grain weight, more number of panicle bearing tillers plant−1 and longer grain would bring about improvement in grain yield. Out of the traits under study, panicle bearing tillers plant−1 contributed towards grain yield almost independently. Spikelets panicle−1, although non significantly associated with grain yield but having highest direct positive effect through which many of the Important traits exhibited direct positive effect would also be useful for considering as an Indirect selection criteria. Secondary branches panicle−1 was also observed to be very effective for selection particularly for the quality rices having relatively lower grain weight.
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Claims 7
Claim · model-written summary
Grain yield was positively and significantly associated with panicle length, grain weight and panicle bearing tillers per plant.
- Taxon
- Upland Rice
Oryza sativat0 - Outcome
- Grain yielde0
- Direction
- positivee0
- Comparator
- panicle length, grain weight and panicle bearing tillers plant−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“Grain yield exhibited positive and significant association with panicle length, grain weight and panicle bearing tillers plant−1”
Claim · model-written summary
Spikelets per panicle had the highest direct positive effect on grain yield, followed by panicle bearing tillers per plant.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- grain yielde0
- Direction
- positivee0
- Comparator
- Spikelets panicle−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“Spikelets panicle−1 showed highest direct positive effect on grain yield followed by panicle bearing tillers plant−1”
Claim · model-written summary
Direct selection for longer panicle, higher grain weight, more panicle bearing tillers and longer grain is recommended to improve grain yield.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- direct selection for longer panicle, higher grain weight, more number of panicle bearing tillers plant−1 and longer graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“direct selection for longer panicle, higher grain weight, more number of panicle bearing tillers plant−1 and longer grain would bring about improvement in grain yield”
Claim · model-written summary
Panicle bearing tillers per plant contributed to grain yield almost independently of other traits.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- contributed towards grain yield almost independentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“panicle bearing tillers plant−1 contributed towards grain yield almost independently”
Claim · model-written summary
Spikelets per panicle were not significantly associated with grain yield.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- grain yielde0
- Comparator
- Spikelets panicle−1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“Spikelets panicle−1, although non significantly associated with grain yield”
Claim · model-written summary
Spikelets per panicle, with the highest direct positive effect, could be used as an indirect selection criterion.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- Indirect selection criteriae0
- Qualifier
- Spikelets panicle−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“Spikelets panicle−1, although non significantly associated with grain yield but having highest direct positive effect through which many of the Important traits exhibited direct positive effect would also be useful for considering as an Indirect selection criteria”
Claim · model-written summary
Secondary branches per panicle were very effective for selection, particularly for quality rices with relatively lower grain weight.
- Taxon
- Upland RiceOryza sativat0
- Outcome
- very effective for selectione0
- Qualifier
- quality rices having relatively lower grain weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Upland Rice (Oryza sativa L.)”
e0“Secondary branches panicle−1 was also observed to be very effective for selection particularly for the quality rices having relatively lower grain weight”