The Formation of Flower Bud and Shoot in Pitaya (Hylocereus sp.) Is Regulated by Photoperiod
Jiang, Y. L.; Lin, T. S.
Pitaya (Hylocereus sp.) usually flowers from April to October but grows vegetatively from November to May in northern Taiwan.
We tried to adjust the reproductive and vegetative growth period of pitaya by changing the length of photoperiod during summer and fall.
When the photoperiod in the summer was reduced to 8 hr flowering is completely inhibited whereas the percentage of shoot flushing enhanced significantly.
When photoperiod is extended by 4-hr night break during the night from mid September 28 % of the treated shoots formed flower buds up to mid November but those control plants are terminated in flower-bud formation on Oct 1st.
Shoot sprouting began from November and higher percentage of sprouting occurred in the control plants than that in the treated ones up to the end of January, 2010.
The results indicated that photoperiod plays an important role in the regulation of vegetative and reproductive growth in pitaya.
皮塔屋參加第28屆國際園藝學年會所發表摘要
由此摘要衍生出最新所發表的文章
這一路還真是漫長
不過 皮塔屋完成紅龍果開花生理研究的關鍵因子
對於產期調節不穩定性的成因及其改善的方式有了一定程度的了解
也算對紅龍產業貢獻一己之心力
皮塔屋紅龍果研究團隊敬上
http://www.ihc2010.org/docs/t03.Book%20of%20Abstracts.pdf