Effect of Irradiation with Red LED Light and Heating Temperature on Flowering and Growth of Pot Carnation
Effect of Irradiation with Red LED Light and Heating Temperature on Flowering and Growth of Pot Carnation
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红色LED灯照射和加热温度对盆栽康乃馨开花和生长的影响
DOI：
10.2503/hrj.20.433
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Masahiro Kato
中科院分区：
文献类型：
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作者：
Takurou Nakajima;Takeshi Suzuki;Keisuke Atsuta;Masahiro Kato
以盆栽香石竹为试材，研究了LED光源和加热温度对香石竹开花和生长的影响。在12°C下加热并用红色LED（波长620至630 nm）照射过夜的情况下，“Chantilly”、“Claire”和“Granrouge”的品种没有比用远红色LED（730至740 nm）的品种长得更高，但与没有LED照射的品种相比，确实显示出加速开花。特别是在'Chantilly'中，与16小时相比，当通过红色LED照射将日长延长至24小时时，观察到初级花的开花更早。在上述三个品种中，当加热温度（9和12°C）和用红色LED过夜照射组合时，用红色LED过夜照射加速开花，而与加热温度无关。红色LED过夜照射也增加了二次分支上部节侧芽和花芽的数量。在这三个品种中，即使在9°C下加热，也注意到由红色LED过夜照射引起的加速开花。在测试的所有11个品种中（上述两个品种，不包括“Granrouge”和九个品种，包括“Cheerfulred”），用红色LED过夜照射和在9°C加热的组合促进了开花，与常规栽培（无LED照射和在12°C加热）类似。
We examined the effects of LED irradiation and heating temperature on flowering and growth of pot carnation (Dianthus caryophyllus L.). Under heating at 12°C and overnight irradiation with red LED (wavelength 620 to 630 nm), varieties of ‘Chantilly’, ‘Claire’, and ‘Granrouge’ did not grow taller than those with far-red LED (730 to 740 nm), but did show accelerated flowering compared with those with no LED irradiation. Especially in ‘Chantilly’, flowering of the primary flower was observed earlier when the day length was elongated to 24 hours by red LED irradiation compared with 16 hours. In the above three varieties, when the heating temperature (9 and 12°C) and overnight irradiation with red LED were combined, overnight irradiation with red LED accelerated flowering regardless of the heating temperature. The number of lateral flower buds and flower buds in the upper node of the secondary branch were also increased by overnight irradiation with red LED. Accelerated flowering caused by overnight irradiation with red LED was noted even under heating at 9°C in the three varieties. In all 11 varieties (two varieties above excluding ‘Granrouge’ and nine varieties including ‘Cheerfulred’) tested, the combination of overnight irradiation with red LED and heating at 9°C promoted flowering similarly to conventional cultivation (no LED irradiation and heating at 12°C).
远红光辅以弱红光促进满天星开花
影响因子：
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作者：
Nishidate;K.;Kanayama;Y.;Nishiyama;M.;Yamamoto;T.;Hamaguchi;Y.;Kanahama;K.
通讯作者：
K.