梯度变化光照下新铁炮百合开花的研究  

Study on Flowering of Lilium formolongi Under Gradient Illumination Time

作　　者：刘伟[1] 刘久东[2,3] 周厚高[4] 

机构地区：[1]文山学院,云南文山663000 [2]云南大学,云南昆明650091 [3]江苏省仪征市农林局,江苏仪征211400 [4]仲恺农业工程学院,广东广州510225

出　　处：《北方园艺》2010年第14期90-92,共3页Northern Horticulture

基　　金：广东省科技计划资助项目(2008B020400008);广东省人大议案资助项目(粤财农[2006]459号)

摘　　要：运用梯度变化光照对新铁炮百合开花进行了研究。结果表明:新铁炮百合为绝对长日照植物,其光周期临界暗期约为11.5 h。对长于12.5 h的光照长度而言,新铁炮百合花蕾长度的增长率随日照长度的延长呈S型曲线,曲线转折点为14.5 h的光照长度。Using gradient illumination time,the flowering of Lilium formolongi was studied.The results showed that Lilium formolongi belonged among the absolute long-day plant,and its critical dark period was about 11.5 h.The growth rate of bud length showed ＂S＂ curve with illumination time passing for the illumination time which were longer than 12.5 h.Moreover,the corresponding illumination time of ＂S＂ curve turning point was 14.5 h.

关 键 词：新铁炮百合 花蕾 梯度变化光照 增长率 

分 类 号：S682.29[农业科学—观赏园艺]