Abstract
This research was aimed the use of non-traditional, biochemical marker-based selection methods in synchronization with classical methods in rice selection, rapid adaptation to adverse environmental factors, disease tolerance, lodging and shedding resistance, high yield and technological quality of rice. According to the results of the experiment, 42 varieties in 2018, 28 in 2019 and 39 in 2020 with a total of 109 combinations of 7172 flowers were selected with the participation of varieties and specimens that are resistant to various environmental influences and diseases, high yield, high grain quality. was carried out. The results of the hybridization showed that 118 (or 3.78%) in 2018, 117 (or 5.35%) in 2019, 81 (or 4.35%) in 2020, a total of 316 (or 4.4%) hybrid populations were taken. F1 generation hybrids obtained from the combinations of Chongwang x TShD 15-13 and Chongwang x 227-09, was recommended not to use these combinations in future studies due to the low dominance of “Ruvak” (paniculo is a type of plant inflorescence) length and 1000 grain weight.
Highlights
Rice is the most important food crop in the world, the second largest in terms of area under cultivation in the world, and the first in terms of yield among cereals [1]
In order to ensure food security in a number of developed rice-growing countries of the world, grain quality has been improved and high yields and economic efficiency has been achieved through the creation, selection, rational placement of varieties suitable for soil and climatic conditions, scientifically based application of advanced resource-saving technologies
According to the results of the experiment, 42 varieties in 2018, 28 in 2019 and 39 in 2020 with a total of 109 combinations of 7172 flowers were selected with the participation of varieties and specimens that are resistant to various environmental influences and diseases, high yield, high grain quality. was carried out
Summary
Rice is the most important food crop in the world, the second largest in terms of area under cultivation in the world, and the first in terms of yield among cereals [1]. The rational use of land and water resources, the creation, selection of new varieties of agricultural crops adapted to local soil and climatic conditions, serious attention has to consider the introduction of resource-saving modern agro-technologies. In this regard, to conduct research on the development and introduction of new varieties of rice with high quality, resistant to adverse environmental conditions, diseases and pests, is vitally important towards increasing productivity in rice cultivation, improving grain quality and meeting the demand of the population for rice products [1,2,3, 5]
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