不同播期对结球生菜主要农艺性状的影响

摘要

研究了不同播期条件下4个结球生菜新品种‘碧玉1号’‘碧玉2号’‘碧玉3号’和‘西斯科’的生育期及主要商品性表现.结果表明,结球生菜属于喜冷凉忌高温气候栽培的蔬菜作物,适合上海及周边地区早春避雨栽培及大棚越冬栽培,但播期对其品质和产量影响较大.在上海及周边地区早春避雨栽培,最适播种育苗期在2月上中旬,而大棚覆盖越冬栽培,最适播种育苗期在12月上旬至翌年1月中旬.%Four new varieties of head lettuce ‘ Biyu 1’,‘ Biyu 2’,‘ Biyu 3’ and ‘ Xisike’ were used as materials,and the main agronomic characters of which were identified under different sowing dates in this study.The results showed that the 4 new varieties were suitable for overwintering cultivation in greenhouse and rain shelter cultivation in spring in Shanghai and nearby areas,the quality and yield of head lettuce were affected by sowing date.In Shanghai and nearby areas,the suitable sowing time for rain shelter cultivation in spring is middle February,and the optimum sowing time for overwintering cultivation is during early December of each year to the middle of January of the following year.