Patterns ofawheat-harvested area andbproduction shown on a 1 km × 1 km grid, relative to the current level under the three scenarios (S1–S3), as well as changes in (c) harvested area anddproduction in the increased and decreased areas with average yields in both of the HHH ...
The yield of wheat increased from 3.7 to 5.4 t ha−1 over the past 20 years, and yield was the major contributor to the continuous improvement in production. It was estimated that the yield increase achieved by cultivar improvement during the 1990s was about 24.7%, and during 2001...
Accurate simulation of soil water content by crop growth simulation models is therefore critically important. Validation data were collected on four benchmark ecotopes for rainfed wheat production in the Free State province of South Africa over a three-year period. The trials were planted in a ...
Fleming, E. M.Taylor & Francis GroupAgrekonNgwenya SA, Battesse GE, Fleming EM (1997). The relationship between farm size and the technical inefficiency of production of wheat farmers in The Eastern Free State, Province of South Africa. Agrekon 36:283-301....
In wheat the incidence and severity of diseases may vary with season, region, variety, weather, inoculum load and resistance level of the host cultivars. This variation leads to the varied yield losses even up to 100 percent under most severe conditions.
Benefiting from utilizing the genetic resistance wheat varieties, wheat stem rust has been effectively controlled since the 1970s; however, the wheat stripe and leaf rusts are still threating the wheat production in China due to lack of effective agricultural regulations. This review summarizes the ...
In summary, this work provides results for heat exposure impacts on dryland wheat production in South Africa. Findings suggest that large reductions in wheat yields occur when temperatures exceed 30 °C and that warming impacts will increase non-linearly under uniform warming scenarios. Our results...
By assessing gene flow among ten regions, only the subpopulations in Iberian Peninsula, the Indus Valley, Yunnan Province in China, and East China showed early and tiny gene flow, compared to frequent and magnitude gene flow in other regions (n = 20 random pairs). The box edges represen...
Invest in the Full Automatic Flour Machine for Flour Mill and experience the convenience and quality it brings to your flour production. With its advanced features and benefits, this machine is a must-have for any professional milling operation. Packaging & Shipping Full ...
South Africa's grains production is set to recover Chris,Lyddon - 《World Grain》 被引量: 0发表: 2017年 The aim of this study was to examine energy use pattern and predict the output energy for dry wheat production in Gorve country, Kordestan province of.. The aim of this study was ...