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首页> 外文期刊>Acta Horticulturae >Effect of plug transplant age and photoperiod treatment at seedling stage on cut flower quality of Celosia cristata L.
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Effect of plug transplant age and photoperiod treatment at seedling stage on cut flower quality of Celosia cristata L.

机译：插秧年龄和苗期光周期处理对鸡冠花切花品质的影响。

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摘要

Celosia cristata L. Kurume type is a quantitative short-day plant with entirely globular inflorescences that is popular as a cut flower in Japan. The photoperiod sensitivity limits production and this could be overcome by prolonging its seedling stage by long-day treatments. In this study, the effects of transplant age and long-day treatment at seedlings stage on cut flower quality of C. cristata Kurume type cv. Sakata-pride were investigated. Plug transplants raised under 15 h (natural day length) or 24-h photoperiods in a greenhouse were transplanted into wooden containers when two, four or eight leaves had unfolded. Flower bud initiation had already occurred in transplants with eight unfolded leaves grown in natural but not in 24-h day length. Days to visible bud were prolonged by 24-h treatment. The cut flowers grown in 24 h were longer than those grown in natural day length. The weight of cut flower and inflorescence decreased as transplant age increased. The inflorescence form changed from globular to flat as transplant age increased. The youngest transplants had the highest cut flower quality. These results suggest that in order to produce highly marketable quality cut flowers of C. cristata Kurume type, the plug transplants must be planted before 4 leaves unfold, and that prolonging the seedling stage may be difficult through long-day treatment.
机译：鸡冠花（Celosia cristata L.Kurume）类型是定量的短日植株，具有完全球状的花序，在日本很流行作为切花。光周期敏感性限制了产量，可以通过长期治疗延长其幼苗期来克服。在这项研究中，移栽年龄和苗期长期处理对C. cristata Kurume type cv切花质量的影响。调查了坂田骄傲。在温室中15小时（自然日长）或24小时光周期下饲养的插秧机，在展开两，四或八片叶子后，将其移植到木制容器中。花芽萌芽已经在移植物中发生，其中八片未折叠的叶子自然生长，但并非在24小时内生长。通过24小时处理，可以延长可见芽的天数。 24小时内生长的切花比自然日长。随着移植年龄的增加，切花和花序的重量减少。随着移植年龄的增加，花序形式从球状变为扁平状。最年轻的移植花切花质量最高。这些结果表明，为了产生高销售质量的C. cristata Kurume类型的切花，必须在4片叶子未展开之前种植插秧，并且通过长期的处理可能难以延长苗期。

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