The aim of the study was to examine the effects of different photoperiod and light integral on floral initiation, development and subsequent growth of Eustoma grandiflorum (Raf.)Shinn.
Six-weeks-old seedlings of ‘Echo Blue’ and ‘Fuji Deep Blue’ were placed under short day (SD, 10 h) and were transferred to long days (LD, 20 h) at 2-week intervals from 6 to 14 weeks after seeding.
Plants initiated flower buds regardless of light regimes. Flower bud initiation was delayed by SD compared to LD; plants transferred after 6 weeks from seeding initiated flower buds at least 21 and 10 days earlier at LD at high (HL) and, low (LL) daily light integral respectively compared to those at SD.
Light regimes had little or no effect on time to flower bud development after initiation. Thus, it seems likely that LD and HL affected the initiation rather than development.
Both the photoperiod and light integral strongly influenced the subsequent growth after initiation. SD delayed the time to visible bud (VB), increased the number of nodes to first open flower, number of branches, stem diameter and shoot dry weight compared to LD.
The aim of the study was to examine the effects of different photoperiod and light integral on floral initiation, 研究目標探討不同光週期和積光量在花之創始的影響
development and subsequent growth of Eustoma grandiflorum (Raf.) Shinn. 洋桔梗後來的生長和發育
Six-weeks-old seedlings of ‘Echo Blue’ and ‘Fuji Deep Blue’ were placed under short day (SD, 10 h) and were transferred to long days (LD, 20 h) at 2-week intervals from 6 to 14 weeks after seeding. ‘Echo Blue’ and ‘Fuji Deep Blue 在苗木六個星期大時種植 然後放置在短日照10小時2個星期後移轉到長日照下6到14周. Plants initiated flower buds regardless of light regimes. Flower bud initiation was delayed by SD compared to LD; 植物花芽之創始 不管光量.在短日照下花芽被延遲於長日照比較之下. plants transferred after 6 weeks from seeding initiated flower buds at least 21 and 10 days earlier at LD at high (HL) and, low (LL) daily light integral respectively 花芽轉移種植之後6周至少21.早10天個別地在 high (HL) 日累積光量和low (LL) 日累積光量.
, compared to those at SD. Light regimes had little or no effect on time to flower bud development after initiation. 相較於短日照光量 幾乎沒有影響在開始之後花芽的發展 Thus, it seems likely that LD and HL affected the initiation rather than development. 因此. 它似乎有可能 LD 和 HL 影響了花芽開始並非發展
Both the photoperiod and light integral strongly influenced the subsequent growth after initiation. SD delayed the time to visible bud (VB), 光週期和光 強有力地影響開始後的生長.短日照延遲了明顯的芽.
increased the number of nodes to first open flower, 增加的第一莖節開花數目 number of branches, 分枝的數目 stem diameter and shoot dry weight compared to LD. 莖直徑和花苞乾襙重量相較於LD
HL promoted flowering and increased several shoot characteristics and flowering compared to LL. HL比相較於LL更能促進開花期和增進側根生長特性
