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前言芒麻起源于中国．是麻纺工业的重要原料作物。贵州是我国芝麻的产区之一．品种资源十分丰富．茎麻面积稳定在（）2万公顷以上。建国近SO年来．我省先后开展了芝麻遗传资源搜集、保存、鉴定评价、系统选育（集团选种）、杂种优势利用等育种研究工作．选育出了一批高产品种（
Preface Mountain marijuana originated in China. Hemp industry is an important raw material crops. Guizhou is one of the producing areas of China’s sesame. Variety is very rich in resources. Stem area stabilized at () 20,000 hectares or more. The founding of the country nearly SO years. The province has carried out sesame genetic resources collection, preservation, appraisal and evaluation, systematic breeding (group selection), heterosis utilization breeding research. Bred a number of high-yielding varieties