Assessment of the compliance of biological characteristics of some grain crops to abiotic factors on the example of the steppe zone of Zavolzhye
Abstract
This article identifies the optimal conditions for the growth of winter, spring durum and spring soft wheat in Zavolzhye. It has been established that the amount of precipitation in September of at least 120 mm at an average temperature of at least 15 °C and a hydrothermic coefficient value of at least 1.2 contributes to the formation of winter wheat yield of 3.5-4.0 t/ha. For spring durum wheat, the best combination of temperature and humidity conditions is at a hydrothermal coefficient of 1.0-1.2. At a hydrothermic coefficient 0.7, it is possible to put a grain yield of spring durum wheat of no more than 0.70 t/ha. Spring soft wheat forms the highest yield at an average temperature of 13 °C in April, 16 °C in May, 24-25 °C in June and 25-26 °C in July. The best combination of temperature and humidity conditions for the growing season of spring soft wheat and the formation of the maximum yield occurs when the hydrothermic coefficient is 1.0 in April; 0.8-1.0 in May; 0.7-0.9 in June; and 1.1-1.2 in July.
- Publication:
-
IOP Conference Series: Earth and Environmental Science
- Pub Date:
- March 2021
- DOI:
- 10.1088/1755-1315/723/2/022043
- Bibcode:
- 2021E&ES..723b2043C