一:Response time (1、这个词语什么意思?)is the period from beginning of the Short Day until opening of the first flowers.
二:The response time noted [in the FGB brochure ](这个词语什么意思?)is based on the Dutch Auction Standard, 2-4 flowers has to be open and that for 80% of the crop.
三: In one year the difference in a variety can be 3 weeks or more(这句咋翻译?)
四:but it has to do with the total sum of light-intensity and how that's divided through the culture(这句咋翻译?)