DROUGHT RESISTANCE OF ALFALFA VARIETIES AND VARIETY SAMPLES OF KAZAKHSTAN AND FOREIGN SELECTION
DOI:
https://doi.org/10.52269/22266070_2023_1_81Keywords:
fodder crop, alfalfa, varieties and variety samples of alfalfa, drought, drought resistance, correlationAbstract
The article presents the results of stress resistance of alfalfa varieties and variety samples of growing on the territory of three countries. The research is related to the subject of the international project "GS19001 - Use of wild related crops for breeding drought-resistant alfalfa and its distribution among subsistence farmers in Kazakhstan, China and Chile". The lack of moisture during the period of growth and development of plants has significantly affected the yield of fodder crops. Drought also has a significant impact on the economic and environmental situation in the countries. Climate change in this direction has brought this problem to the fore. Thus, the studies have focused on the drought resistance of alfalfa samples.
The research was conducted in LLP "Kokshetau Experimental Production Farm" (Shagalaly rural area), located in the northern part of the hilly and plain zone of Akmola region in Zerenda district of the Republic of Kazakhstan. The soils of the experimental plot are common chernozems, in terms of mechanical composition they are slightly stony heavy loam, the reserves of labile forms of phosphorus are estimated as low, and high of potassium.
Field methods of estimation were applied in selection for drought resistance. The drought resistance was determined during the period of maximum drought, i. e. visual evaluation by the number of green leaves given in percentage. Promising samples for drought resistance such as K 271, Forse 5, Zhangcao, DT 1 were established. The determined drought resistant varieties will be used as resource material for selecting fodder crops.
