تأثير درجات الحرارة على زراعة و إنتاج محصول القمح (في قضاء الحلة)‎

الملخص EN

Temperature is one of the important climatic elements that affect the distribution and spread of plants, their growth and composition, as they affect the physiological and biological processes of the plant such as photosynthesis, respiration, water absorption and nutrients.

Thermal is the minimum, upper limit and ideal limit.

Therefore, any change, up or down from this degree, leads to a decrease in the speed of the occurrence of these operations and amounts to a stop and damage to the plant according to the deviation from the ideal temperature range for that process.

Every agricultural crop has certain climatic requirements that must be met for the success of its cultivation, especially temperature, as it has the largest role in the cultivation of field crops, including wheat, and the research dealt with climatic characteristics in the study area based on climatic data for the period (1989 - 2019.( And the extent of variation in temperature levels (optimum, maximum and minimum) during the five phases of the wheat crop (germination, the start-up stage of the branches, the vegetative growth stage, the flowering stage, the ripening stage), as well as differences between the appropriate crop requirements of temperatures and their comparison with temperature values Located in the study area.

The research showed that the wheat (optimum, maximum and minimum) temperatures for wheat crop recorded deficiency during some stages and were ideal for some stages in the study area