播种期和品种对萝卜现蕾、抽薹和开花的影响  

Influence of Sowing Time and Cultivars on Floral Initiation, Bolting and Flowering of Radish (Raphanus sativus L.)

作　　者：汪炳良[1] 邓俭英[1] 曾广文[2] 

机构地区：[1]浙江大学农业与生物技术学院,杭州310029 [2]浙江大学生命科学学院,杭州310029

出　　处：《种子》2003年第3期15-17,20,共4页Seed

基　　金：浙江省自然科学基金资助项目 (项目编号 :30 0 2 66)。

摘　　要：对冬性强弱不同的 4个萝卜品种进行周年播种 ,以探讨其现蕾、抽薹和开花的响应。结果表明 ,从播种至现蕾、抽薹和开花所需的时间不仅品种间和播种期之间存在显著差异 ,而且品种与播种期之间的互作效应也达到极显著水平。播种后现蕾、抽薹时间越短 ,现蕾时叶片数也越少、初花期植株越矮小。在杭州的气候条件下 ,“白玉春”和“早春大根”周年播种在现蕾前均能够获得正常或基本正常的肉质根 ,但尽可能避免 11月下旬至 2月下旬 ;“一点红”只要在 4月至 11月初播种亦可在现蕾、抽薹前获得大小正常的肉质根 ;“短叶 13”只有在 6月下旬至 9月下旬播种时方能在现蕾、抽薹前获得大小正常的肉质根。In order to study the effects of cultivars and sowing time on the floral initiation, bolting and flowering, four radish cultivars were sown several times in different time all around year. It was found that the days from sowing to floral initiation, bolting and flowering varied greatly with the cultivars and sowing time, and a significant difference was estimated between radish cultivars and sowing time in floral initiation, bolting and flowering. The earlier the floral initiation, the fewer the number of leaves were when floral initiation. In the weather condition at Hangzhou, considering to harvest the normal taproot before floral initiation or bolting, the suitable sow day for the radish cultivars Bai-Yu-Chun and Zao-Chun-Da-Gen may be from March to the middle of November, for Yi-Dian-Hong may be from April to the early of November, and for Duan-Ye-No.13 the sowing time may be limited from the end of June to September.

关 键 词：播种期 品种 萝卜 现蕾 抽薹 开花 影响因素 

分 类 号：S631.1[农业科学—蔬菜学]