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长果黄麻在花冠开裂后５０ｍｉｎ之内、圆果黄麻在花冠刚出现裂缝时，用水喷花朵能起到去雄作用．杂交种子的杂合率可达８０％左右，在长果黄麻杂种优势利用中，可以作为一项新的制种技术
Long-fruit jute within 50min after the cracking of the corolla, Fructus jasminoides in the corolla just cracks, water spray flowers can play a role in the removal of male. The heterozygosity of hybrid seeds can reach about 80%, which can be used as a new seed production technology in heterosis utilization of longan fruit jute