Effects of growth‐stage‐based limited irrigation management on the growth, yields, and radiation utilization efficiency of winter wheat in Northwest China

2021 ◽  
Author(s):  
Yuxin Cao ◽  
Huanjie Cai ◽  
Shikun Sun
Keyword(s):  
Winter Wheat ◽  
Growth Stage ◽  
Irrigation Management ◽  
Northwest China ◽  
Utilization Efficiency ◽  
Growth Yields

Modeling maize production under growth stage-based deficit irrigation management with RZWQM2

2021 ◽  
Vol 248 ◽  
pp. 106767
Author(s):  
Huihui Zhang ◽  
Liwang Ma ◽  
Kyle R. Douglas-Mankin ◽  
Ming Han ◽  
Thomas J. Trout
Keyword(s):  
Deficit Irrigation ◽  
Growth Stage ◽  
Irrigation Management ◽  
Maize Production

scholarly journals Irrigation management strategies for winter wheat using AquaCrop model

2013 ◽  
Vol 3 ◽  
pp. 106-113
Author(s):  
M.H. Ali ◽  
I. Abustan
Keyword(s):  
Winter Wheat ◽  
Irrigation Management ◽  
Weather Data ◽  
Water Model ◽  
High Yield ◽  
Management Decision ◽  
Soil Conditions ◽  
Irrigation Frequency ◽  
Aquacrop Model ◽  
Daily Weather Data

Many regions of the world face the challenge to ensure high yield with limited water supply. This calls for utilization of available water in an efficient and sustainable manner. Quantitative models can assist in management decision and planning purposes. The FAO’s newly developed crop-water model, AquaCrop, which simulates yield in response to water, has been calibrated for winter wheat and subsequently used to simulate yield under different sowing dates, irrigation frequencies, and irrigation sequences using 10 years daily weather data. The simulation results suggest that “2 irrigation frequency” is the most water-efficient schedule for wheat under the prevailing climatic and soil conditions. The results also indicate decreasing yield trend under late sowing. The normal/recommended sequence of irrigation performed better than the seven-days shifting from the normal. The results will help to formulate irrigation management plan based on the resource availability (water, and land availability from previous crop).

scholarly journals Susceptibility of Winter Wheat and Triticale to Yellow Rust Influenced by Complex Interactions between Vernalisation, Temperature, Plant Growth Stage and Pathogen Race

Agronomy ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 13 ◽  
Author(s):  
Julian Rodriguez-Algaba ◽  
Chris K. Sørensen ◽  
Rodrigo Labouriau ◽  
Annemarie F. Justesen ◽  
Mogens S. Hovmøller
Keyword(s):  
Low Temperature ◽  
Plant Growth ◽  
Winter Wheat ◽  
Growth Stage ◽  
Disease Susceptibility ◽  
Yellow Rust ◽  
Adult Plant ◽  
Rust Susceptibility ◽  
Adult Plants ◽  
Increased Susceptibility

Environmental factors influence the disease susceptibility of crop plants. In this study, we established an experimental system to investigate the effects of vernalisation, temperature and plant growth stage on the susceptibility of winter wheat and winter triticale to Puccinia striiformis, the causal agent of yellow (stripe) rust. Two temperature regimes: standard (18 °C day/12 °C night) and low (12 °C day/6 °C night), vernalised and non-vernalised seedlings, vernalised adult plants and two pathogen races were investigated. At low temperatures, vernalisation reduced the susceptibility of seedlings exposed to the ‘Warrior’ race, while this was only the case for five out of eight varieties exposed to the ‘Kranich’ race. Changing from standard to low temperature resulted in increased susceptibility of non-vernalised seedlings of seven varieties inoculated with the ‘Warrior’ race and five varieties inoculated with the ‘Kranich’ race. Increased susceptibility at low temperature was also detected for several varieties at the adult plant growth stage. Comparisons between vernalised seedlings and adult plants revealed an effect of plant growth stage on disease susceptibility (e.g., Adult Plant Resistance) in five varieties at standard temperature for the ‘Warrior’ race and in five and four varieties at standard and low temperature respectively, for the ‘Kranich’ race. The complex and unpredictable interactions between environment and pathogen influencing yellow rust susceptibility of individual varieties stress the importance of phenotyping for disease resistance under different environmental conditions and pathogen populations. The environmental impact on rust susceptibility should also be taken into account in early-warning systems targeting wheat and triticale breeding programmes and growers.

Effect of organic amendments on yield-scaled N2O emissions from winter wheat-summer maize cropping systems in Northwest China

2020 ◽  
Vol 27 (25) ◽  
pp. 31933-31945 ◽  
Author(s):  
Fenglian Lv ◽  
Xueyun Yang ◽  
Huanhuan Xu ◽  
Asif Khan ◽  
Shulan Zhang ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Cropping Systems ◽  
Organic Amendments ◽  
Northwest China ◽  
N2o Emissions ◽  
Summer Maize

Winter Wheat (Triticum aestivum) Growth Stage Effect on Paraquat Bioactivity

1991 ◽  
Vol 5 (2) ◽  
pp. 439-441
Author(s):  
Randy L. Anderson ◽  
David C. Nielsen
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Growth Stage ◽  
Time Of Day ◽  
Growth Stages ◽  
Leaf Stage ◽  
Time Of Application ◽  
Biomass Reduction

Paraquat was applied at 0.28 and 0.56 kg ai ha-1to winter wheat at five growth stages at 0800, 1300, and 1600 hr to determine whether growth stage or time of application influenced winter wheat response to paraquat. Paraquat bioactivity was affected by growth stage. Biomass reduction by paraquat was 84% when winter wheat was in the 1 to 3 leaf stage, but only 68% when application was delayed until tillering. Paraquat bioactivity continued to decrease at later growth stages. The time of day when paraquat was applied did not affect its bioactivity on winter wheat.

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