苎麻新品种89-12的选育

８９－１２是利用高产、中质、抗逆性强的湘苎２号（又名圆叶青）作母本,品质特优的早熟地方品种资溪苎麻为父本,通过有性杂交,从杂交后代群体中选出优良单株,经多年定向选育而成的一个高产、优质、抗逆性较强的早熟苎麻新品种。通过全国主产麻区５省６点苎麻新品种区域试验,８９－１２纤维产量为２３３８．５ｋｇ／ｈｍ２,比对照种芦竹青平均增产１９．５１％,居试验首位,增产达极显著水平,其丰产性最好,增产主效应值最高。产量构成因素值亦居第一、二位,与产量表现相吻合。单纤维支数１９００～２０００支以上,全年工艺成熟期１５２～１６０ｄ左右。具有较强的抗风、抗旱和耐寒能力。是一个适于在生产上推广应用的优良新品种

Breeding of a New Ramie Variety, "89-12

With high yield, middle-quality, and strongly resistant Xiangzhu 2 as the maternal parent, and early-mature and high-quality Zixi local variety as the paternal parent, the cross produced a variety of hybrids, from which the new ramie variety "89-12", which was high yield, high quality, early mature, and moderately resistant, was derived through many years of directional breeding. In the regional trial attended by new ramie varieties of five ramie-growing provinces in China, the hemp yield of "89-12" was 2338.5 kg/hm 2, 19.51% higher than that of "Luzhuqing", the control variety. The difference was very significant. The yield components were correspondingly advantageous over those of other varieties. The number of single fibres was 1900 to 2000. The whole ripening duration in a year was 152 to 160 days. Because of its moderate resistance to wind, drought, and chilling, "89-12" was good for being commercialized.