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无产阶级文化大革命以来,我们和兰州市的一些社、队贫下中农协作,在西瓜四倍体的育种、无籽西瓜的制种、栽培技术等方面,初步摸索了如下几条经验。
Since the Great Proletarian Cultural Revolution, we collaborate with some lower-middle peasants and peasants in Lanzhou City. We have tentatively explored the following experiences in the breeding of tetraploid watermelons, seedless watermelon cultivation and cultivation techniques.