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1995年西北植物研究所(电话:0910—7013448),在国内首次合成出一种苯基脲类新型植物细胞分裂素,其活性比一般细胞分裂素(膘呤类化合物)高出几百至几千倍,并通过了陕西省科委主持的成果鉴定,已获得了国家专利(专利号:96118798.0)。1996和1997年,西北植物研究所在省果树研究所栽培室协作下,将其与其它物质混合后在苹果花期进行喷布,发现该产品具有美国普洛马林类似功能,是一种新型苹果增高剂,暂定名BN—2苹果增高
1995 Northwestern Institute of Botany (Tel: 0910-7013448), in the country for the first time synthesized a new type of phenylurea plant cytokinin, its activity than the general cytokinin (stilbene compounds) several hundred to several Thousand times, and adopted the Shaanxi Provincial Science and Technology Commission presided over the appraisal of the results, has won the national patent (patent number: 96118798.0). In 1996 and 1997, the Northwest Botanical Institute in collaboration with the Provincial Fruit Tree Research Institute cultivation room, mixed with other substances after spraying in the apple florescence and found that the product has the similar function of the United States of Progesterine, is a new type of apple Elevated agents, tentative name BN-2 apple increased