【摘要】 为筛选出适合武汉市越冬栽培的莴苣品种,对4个越冬圆叶品种进行品种比较试验,结果表明,华笋在株高、叶片数、笋茎长、茎粗、抗病性等方面优势明显;熟性上,华笋比对照品种雪里松晚7 d左右;净菜率上,华笋为62.2%,雪里松为66.7%;产量方面,华笋比雪里松显著增产23.0%;耐寒性和抗病性方面,华笋均表现最好,华笋的冻害指数和感病指数分别为40.8和62.0,雪里松为51.0和77.5,差异均达显著性水平;其他2个品种的综合性状表现均较华笋差。因此,华笋在越冬品种栽培上优势较大,具有极大的推广价值。更多还原

【Abstract】 In order to screen out the suitable overwintering lettuce cultivars in Wuhan, we carried out a comparative test of four overwintering lettuce cultivars with round leaf. The results showed that, Huasun had obvious superiorities in plant height, leaf number, stem length, stem diameter and resistance to diseases, and Huasun was 7 days later than the control Xuelisong in maturity. Huasun was 62.2% in rate of net vegetable, while Xuelisong was 66.7%. The yield of Huasun was significantly increased by 23.0% than that of Xuelisong. Huasun had best resistance to cold and diseases, and its freezing injury index and disease index were 40.8 and 62.0 respectively, while freezing injury index and disease index of Xuelisong were 51.0 and 77.5 respectively, and there were significant differences between them in these two indexes. The other two cultivars were worse than Huasun in comprehensive characters. So, Huasun had the biggest superiorities in all overwintering lettuce cultivars, and it had prodigious promotional value.更多还原