【摘要】 为满足生产上对优质苦荬菜新品种的需求,开展苦荬菜地方品种提纯选育,以锦屏地方农家品种为育种材料,以高产、晚熟、叶片宽大、结实性好为主要育种目标,采用混合选择法系统选育而成。锦屏苦荬菜植株直立,抽苔晚,花期均高2.5 m,生育期282 d左右(比对照生育期长54～64 d)。综合性状表现优良,全株生物产量75 861.30 kg/hm~2、种子产量123.0 kg/hm~2、单株叶片数35.8个/株、茎叶比1.00∶1.32、粗蛋白含量为18.85%、粗脂肪含量为4.65%,均高于龙牧苦荬菜和蒙早苦荬菜。该品种适宜在贵州丘陵山地、中低山地区及我国长江以南、亚热带中低海拔相似气候区种植。更多还原

【Abstract】 In order to meet the demand for new varieties of high quality Lactuca indica L., local varieties of Lactuca indica L.Jinping were purified and bred, and local farm varieties were used as breeding materials for the experiment. The main breeding goals were high yield, late ripening, wide leaves and good solidity by using the method of mixed selection system. The plant plants of Lactuca indica L.Jinping are erect, late bolting, 2.5 m high at flowering period, and 282 d growth period(54 to 64 d longer than the control). The comprehensive traits performed well, with 75 861.30 kg/hm~2 total plant biological yield, 23.0 kg/hm~2 seed yield, 35.8 leaves per plant, 1.00∶1.32 stem to leaf ratio, 18.85% crude protein content, and 4.65% crude fat content, which were all higher than the control Lactuca indica L. Longmu and the Lactuca indica L. Mengzao. Lactuca indica L. Jinping was suitable to be planted in hilly and mountainous areas, middle and low mountain areas in Guizhou, South of Yangtze River and subtropical middle and low altitude similar climate areas in China.更多还原