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在苏联的柑桔栽培中,其困难之一是柑桔类作物的耐寒力低。因此,查明任何一种农业技术方法与育种特性,以提高这类作物耐低温的可能性具有重大的意义。 在制定这些措施时,如象育种研究一
One of the difficulties with citrus cultivation in the Soviet Union is the low cold tolerance of citrus crops. Therefore, it is of great importance to identify any one of the technical methods and breeding characteristics of agricultural technology to increase the resistance to low temperature of such crops. In developing these measures, such as breeding a