Claim · model-written summary
Grain sterility was significantly related to cold-tolerance efficiency (r = - 0.836**), negatively.
Oryza sativaVerbatim
t0“performance of rice (Oryza sativa) genotypes”
e0“A significant relationship of grain sterility (r = - 0.836**), harvest index (r = 0.929**), panicle weight (r = 0.574*), NR activity (r = 567*), anthocyanins content (r = 0.561*) with cold-tolerance efficiency was observed”
Title
Pramod Kumar The Indian Journal of Agricultural Sciences 2002
Other claims from this paper (18)
- Association Photosynthesis rate at grain filling correlated significantly and positively with grain yield under normal planting (r = 0.584*).
- Association Canopy photosynthesis at grain filling correlated significantly and positively with grain yield under normal planting (r = 0.830**).
- Association The association of photosynthesis with grain yield was poor under low temperature (late planting).
- Observation Canopy photosynthesis in the nursery bed under both plantings showed no reduction.
- Observation Canopy photosynthesis at the vegetative stage was reduced by 2.71% under both plantings.
- Intervention effect Rate of photosynthesis at grain filling was reduced by 36.68% under low temperature.
- Intervention effect Canopy photosynthesis at grain filling was reduced by 44.14% under low temperature.
- Intervention effect Transpiration at grain filling was reduced by 29.30% under low temperature.
- Intervention effect Stomatal conductance at grain filling was reduced by 76.80% under low temperature.
- Intervention effect Level of photosynthetic pigments at grain filling was reduced by 52.51% under low temperature.
- Intervention effect Nitrate reductase activity at grain filling was reduced by 51.61% under low temperature.
- Intervention effect Grain-filling rate was reduced under late planting due to low temperature.
- Association Harvest index was significantly and positively associated with grain yield under low temperature (r = 0.772**).
- Mechanism The authors interpret that low temperature reduced the partitioning of photo-assimilates, which resulted in poor yield.
- Association Harvest index was significantly related to cold-tolerance efficiency (r = 0.929**), positively.
- Association Panicle weight was significantly related to cold-tolerance efficiency (r = 0.574*), positively.
- Association NR activity was significantly related to cold-tolerance efficiency (r = 567*); the sign is not stated.
- Association Anthocyanins content was significantly related to cold-tolerance efficiency (r = 0.561*), positively.