Selection of cut flower species affected promotion of flowering and stem elongation by far-red lighting or heating treatments on end of day under limited sunshine from autumn to winter

IF 1 Q3 HORTICULTURE Horticultural Science Pub Date : 2020-09-30 DOI:10.17221/174/2018-hortsci
Y. Takemura, M. Kishimoto, F. Tamura
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引用次数: 2

Abstract

The effect of a brief exposure to treatments of end-of-day (EOD) far-red (FR) light and EOD-heating on flowering and stem elongation in certain species cultivated in areas with limited sunshine from autumn to winter has been investigated. Thirteen EOD-FR treated cultivars among all 24 cultivars tested in experiment 1, showed earlier flowering than control plants. Additionally, Kanzaki No.21, F1 Winter cherry and Gypsy deep rose were earlier to flower under the all night-FR treatment than under the EOD-FR treatment. Further, 13 cultivars among all cultivars tested in experiment 1 showed greater stem length, whereas 16 cultivars of them showed greater mean internode length than controls when treated with EOD-FR. The days to flowering in 13 cultivars treated by EOD-Heating, flowering was earlier than in controls. Also, stem length and mean internode length were also promoted by the same treatment in 7 cultivars. Additionally, flowering and stem elongation of Stella rose, Arizona sun, Suzuhime and Extra carmine rose were promoted by a combination of both treatments, and productivity and quality were improved. These results suggest that the treatments tested can help the production of cut-flowers in areas with limited sunshine from autumn to winter, although the method of application of the treatments must be optimized for each species.
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切花品种的选择对秋冬日照有限的日末远红色光照和加热处理对开花和茎伸长的促进作用有影响
研究了在秋冬日照有限地区栽培的某些品种,短时间暴露于日末远红光照和日末加热处理对开花和茎伸长的影响。试验1的24个品种中,13个经EOD-FR处理的品种开花时间比对照早。此外,整夜fr处理下,Kanzaki 21号、F1冬樱桃和吉普赛深玫瑰的开花时间比EOD-FR处理要早。在试验1中,13个品种的茎长比对照大,16个品种的平均节间长比对照大。经eod加热处理的13个品种的开花时间均比对照早。同样处理对7个品种的茎长和平均节间长也有促进作用。此外,两种处理对斯特拉月季、亚利桑那月季、铃姬月季和额外胭脂月季的开花和茎伸长均有促进作用,并提高了产量和品质。这些结果表明,在秋冬日照不足的地区,试验处理可以促进切花的生产,但每种处理的施用方法必须针对每种植物进行优化。
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来源期刊
Horticultural Science
Horticultural Science Horticulture-园艺
CiteScore
2.20
自引率
0.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: The journal publishes results of basic and applied research from all areas of horticulture, fruit-growing, vegetable-growing, wine-making and viticulture, floriculture, ornamental gardening, garden and landscape architecture, concerning plants that are grown under the conditions of European temperate zone, or field plants that are considered as horticultural cultures. Original scientific papers, short communications and review articles are published in the journal. Papers are published in English (British spelling).
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