青梗松花菜不同播种期及种植密度比较试验

Comparison of Green-stem Loose-curd Cauliflower Cultivars with Different Sowing Times and Planting Densities

通过对雪松45天、庆丰50日两个青梗松花菜品种采用不同播种期及种植密度的复因子比较试验,结果显示,同一品种早播种(6月中旬)35 d采收期的比晚播种(7月中旬)的提早13～19 d,晚播种栽培的定植至采收天数比早播种的缩短15 d左右;晚播种的植株开展度比早播种的小;晚播种各处理花球单球质量比早播种的大;晚播种的产量比早播种的高;不同的种植密度对产量有显著的影响,株距×行距=35 cm×50 cm的比株距×行距=45 cm×50 cm的产量高,且花球商品质量不受影响,可为桂林地区早熟青梗松花菜夏季播种初秋采收的栽培模式提供参考。

In this paper, we studied the effects of different sowing times and planting densities on phenological period, botanical characters, curd characters and yield of two loose-curd cultivars Xuesong 45 and Qingfeng 50. The results showed that, the harvest time was 10 to 15 days earlier while the sowing time was 35 days earlier （in middle June）, and the duration from planting to harvest were about 15 days shorter while they were planted later （in middle July）. Late-sown cauliflower possessed smaller plant breadth, heavier single curd weight and higher yield. And different planting densities had significant effects on yield of cauliflower, but had no significant effect on commercial quality of cauliflower, and the yield was higher while the row spacing and line spacing were 35 cm and 50 cm respectively, therefore, it could be taken as references for the summer-planting and autumn-harvesting cukivation pattern of early-maturing green-stem loose-curd cauliflower in Guilin.