Claim · model-written summary
Longer irrigation intervals depressed spikes per area, kernels per spike and thousand-kernel weight, especially early in growth.
- Taxon
- bread wheat
Triticum aestivume1 - Treatment
- elongating the irrigation intervalse0
- Outcome
- number of spikes/m², number of kernels/spike and 1000-kernel weighte0
- Direction
- depressede0
- Qualifier
- reductions being more at the first stagee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of spikes/m², number of kernels/spike and 1000-kernel weight were also depressed by elongating the irrigation intervals with reductions being more at the first stage”
e1“bread wheat (Triticum aestivum, L.)”
Title
Iman Sadek, Journal of Plant Production 2000. doi:10.21608/jpp.2000.260250
Other claims from this paper (18)
- Intervention effect Seven-day irrigation throughout the season gave the highest grain yield across genotypes.
- Intervention effect Extending irrigation from seven to fourteen days during planting to booting reduced grain yield by 19.6%.
- Intervention effect Extending irrigation during booting to milk stage reduced grain yield by 13.4%.
- Intervention effect Extending irrigation during milk stage to maturity reduced grain yield by 9.8%.
- Intervention effect Each successive nitrogen level significantly increased grain yield and yield components.
- Association Grain yield differed significantly among genotypes.
- Observation Gemmeiza 5 had the highest grain yield at 5.81 t/ha, statistically indistinguishable from Sakha 93.
- Observation Sakha 69 had the lowest grain yield at 4.61 t/ha.
- Association The treatment interactions were significant.
- Observation Highest yields occurred for Gemmeiza 5 and Sids 1 with seven-day irrigation and 216 kgN/ha fertilizer.
- Association Genotypes differed substantially in response to increasing nitrogen fertilizer.
- Observation Grain yield response index was highest for Gemmeiza 5 and lowest for Sakha69.
- Intervention effect Grain yield response index and water-use efficiency were highest with seven-day irrigation at the first two stages and declined with longer intervals.
- Intervention effect Increasing nitrogen significantly increased water-use efficiency.
- Association Water-use efficiency varied significantly among genotypes and was highest in high-yielding genotypes.
- Recommendation The authors recommend Gemmeiza 5, Sakha 93, Giza168 and Sids 1 for reclaimed sandy soil in El-Bustan.
- Recommendation For maximum yield, the authors recommend seven-day irrigation.
- Recommendation For maximum yield, the authors recommend nitrogen at 216 kgN/ha.