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若将鳞茎提早从地里挖起,并在进入温室催育之前加热贮藏(35℃),然后冷藏(9 ℃),便可获得较早开放的水仙花.本文用Garlton和Fortune两个品种为试材,从5月27日起至6月22日每周挖掘一批鳞茎,在热藏之后,冷藏之前置于17℃的温度下0～7周,研究了能促成最早开花而又令人满意的栽培技术.冷藏开始之前通常要在17℃下贮藏一段,使花芽完成分化过程.热藏之后,5月27日和6月22日挖掘的鳞茎花芽分化分别已达到Sp和A_2阶段;而要使花芽完全分化(Pc阶段),则需在17℃下贮藏5～7周.因此,冷藏的开始时间要在Sp至Pc阶段这段时间内.在冷藏14～16周后,最早冷藏的鳞茎只发育到A_2阶段,而所有其他鳞茎均已达到Pc阶段.所有处理均无发现花朵(如副花冠破裂);但Carl-ton品种5月27日挖起的,在17℃贮藏0～1周的鳞茎,约有一半不开花,因花葶不伸长,花芽死在佛焰苞里.通过迟挖以及在17℃下延长贮藏时间,可缩短温室里生长时间,但6月15日或6月22日挖起,在17℃贮藏2周或更长时间的鳞茎,其差异不大.要在温室30天内开花,5月27日挖起的鳞茎要在17℃贮藏5至6周;而6月22日以后挖起的,在17℃的贮藏时间可缩短到1周.在温室里只有6月15或22日挖起,并于17℃下贮藏4～5周的鳞茎才能在21天内开花.Fortune品种,5月27日或6月1日挖起后在17℃贮藏3～5周,或者
If the bulbs were dug up from the ground earlier and heated and stored at 35 ℃ before cold storage (9 ℃), the earlier open daffodils could be obtained.In this paper, two varieties of Garlton and Fortune The test material excavated a batch of bulbs each week from May 27 to June 22 and stored them for 0 to 7 weeks at a temperature of 17 ° C after the heat storage and before being refrigerated, People are satisfied with the cultivation techniques.Costs usually need to be stored at 17 ℃ for a long time before the cold storage to complete the flower bud differentiation process.After the heat storage, the buds excavated on May 27 and June 22 have reached Sp and A_2 stages, respectively; In order to completely differentiate the flower buds (Pc stage), they should be stored for 5 to 7 weeks at 17 ° C. Therefore, the start of cold storage should be in the period of Sp to Pc, and the earliest cold storage after 14 to 16 weeks Of the bulbs developed to the A 2 stage, while all the other bulbs had reached the stage of Pc. No flowers were found in all treatments (such as the corolla rupture); however, the Carl-ton cultivars were dug up on May 27 and stored at 17 ° C for 0 ~ About one week of bulbs, about half of the flowering, because Scape does not stretch, flower buds died in the spathe. By later digging and prolonged storage at 17 ℃ Time, can shorten the growth time in the greenhouse, but the bulb raised on June 15 or June 22, stored at 17 ℃ for 2 weeks or longer, the difference is not significant .To bloom in the greenhouse within 30 days, May 27 Day bulbs are stored at 17 ° C for 5 to 6 weeks and after June 22 they are stored at 17 ° C for up to 1 week and are only harvested on June 15 or 22 in the greenhouse, And stored for 4-5 weeks at 17 ° C to bloom within 21 days.Fortune varieties are stored at 17 ° C for 3 to 5 weeks after wedging on May 27 or June 1 or