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If we put agriculture aside, we will see that all plant species in the world have rules for growing according to temperature. Therefore, different plants grow in different regions of the world according to the temperature. In agriculture, it is impossible to grow plants without taking into account the temperature. In our country, the cotton plant, which is widely cultivated, has stages of development under certain temperatures. In this article, you will get acquainted with the air temperature required for the growth of cotton and the production of a good crop.
Air Temperature
The warm weather is a desirable situation in the cotton industry. Therefore, both in the world and in our country, cotton is grown mainly in hot zones. In addition, the optimum air temperature for seed germination and good yield is 25-30 ° C. If the temperature drops below 25 ° C, there is a delay in plant growth. Lack of heat in the plant is observed at 20 ° C. The temperature at which heat deficiency is most pronounced is 17 ° C. Cottonseed can normally germinate at 10-12 ° C, but the seedlings cannot reach the topsoil. The temperature required for the leaves to emerge from the soil is no less than 15-16 ° C. If the temperature is higher than 30 ° C in the early stages of plant growth, the growth of cotton will be accelerated. During the growing stage of cotton, a temperature of 10-12 ° C is considered the end of the road for the plant. At this temperature, the life processes of the plant stop.
Different Cotton Varieties
These temperatures do not apply to all types of cotton. Different temperatures play a role in different varieties of cotton. For example, some varieties germinate below 7-8 ° C, while others have 10-15 ° C. In general, temperatures below 0 ° C lead to plant death. New shoots die at minus 1-2 ° C, while more mature plants die at minus 3-5 ° C. Factors such as relative humidity and wind play a major role in the effect of low temperatures on cotton. High temperatures, as well as negative temperatures, are not conducive to the development of cotton. If the temperature is above 35 ° C, the growth and development of cotton stops. Temperatures above 30 ° C stop the development of flowers and pollen and weaken reproduction. That is, this temperature leads to the proliferation of waste in mature cones and the massive shedding of the flesh bars.
The temperature range required for normal growth of a cotton plant is as follows:
Seed germination: 15-18 ° C;
Stem, Leaf, Branch (Vegetative) development: 21-26 ° C;
Budding and flowering: 19-21 ° C;
Pot ripening and opening: 26-32 ° C;
Adversely affects the development of cotton:> 35 ° C.