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Effect of LED Lighting and Silicon Supplementation on Growth and Flowering of Cut Flowers.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Effect of LED Lighting and Silicon Supplementation on Growth and Flowering of Cut Flowers./
作者:	Mills, Taylor S.
面頁冊數:	1 online resource (146 pages)
附註:	Source: Masters Abstracts International, Volume: 57-05.
Contained By:	Masters Abstracts International57-05(E).
標題:	Horticulture. -
電子資源:	click for full text (PQDT)
ISBN:	9780355791082

Effect of LED Lighting and Silicon Supplementation on Growth and Flowering of Cut Flowers.
Mills, Taylor S.

Effect of LED Lighting and Silicon Supplementation on Growth and Flowering of Cut Flowers. - 1 online resource (146 pages)

Source: Masters Abstracts International, Volume: 57-05.

Thesis (M.S.)--Oklahoma State University, 2017.

Includes bibliographical references

Use of light emitting diodes (LED) technology is beginning to replace traditional lighting in greenhouses. This research focused on the effects of LED lighting and GA3 supplementation on growth and flowering of cut flowers. Dahlia spp. (Cav.) 'Karma Serena' and 'Karma Maarten Zwaan', Liatris spicata (Gaertn. ex Schreb) 'Kobold', and Lilium asiatic (L.) 'Yellow Cocotte' and 'Montreux' were subjected to varying light treatments including LED flowering lamps and halogen lamps. The flowering lamps emitted a combination of red + far-red + white and red + white. Photoperiod was extended by operating all lamps for 7 hours in the night and the experiment ran from late fall to early spring. Results varied within species and cultivars in response to light and GA3. Light was the most effective on growth and flowering characteristics especially in liatris and both cultivars of dahlia. In liatris, flowering occurred 2 weeks earlier under sole LED lighting than under other light treatments and no supplemental light. Although flowering occurred earliest in both cultivars of dahlias under no light, plants under light treatments had greater height, width, and shoot weight. There were significant effects of GA3 on growth and flowering characteristics in dahlia cultivars and lily cultivars such as greater height, width, and flower number. A significant interaction of light with GA3 influenced height, width, mean flower number, flower diameter, days to anthesis, and flowering percentage in several crops. The role of silicon (Si) as a needed supplement in soilless media is gaining interest. This research studied the effects of diatomaceous earth (DE) as a supplemental Si source on growth and flower characteristics, physiology, and nutrient uptake of cut flowers such as Dahlia spp. (Cav) 'Dahlinova Montana', Rudbeckia hirta (L.) 'Denver Daisy', and Gerbera jamesonii (L.) 'Festival Light Eye White Shades'. Nine Si treatments were established, and plants were considered well-watered at 10 centibars or water-stressed at 20 centibars. Silicon treatments included application of DE across the top of the pots (top-dressed) incorporation, and Metro-Mix 360 media with and without Si. For each species, there were six pots per Si rate per irrigation treatment. Significant effects were seen from Si supplementation, irrigation, and interaction in all plants. Growth and flower characteristics, leaf nutrient content, and tolerance to stress were improved by application of DE.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355791082Subjects--Topical Terms:

1058420
Horticulture.
Index Terms--Genre/Form:

554714
Electronic books.

Effect of LED Lighting and Silicon Supplementation on Growth and Flowering of Cut Flowers.
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504 $a Includes bibliographical references
520 $a Use of light emitting diodes (LED) technology is beginning to replace traditional lighting in greenhouses. This research focused on the effects of LED lighting and GA3 supplementation on growth and flowering of cut flowers. Dahlia spp. (Cav.) 'Karma Serena' and 'Karma Maarten Zwaan', Liatris spicata (Gaertn. ex Schreb) 'Kobold', and Lilium asiatic (L.) 'Yellow Cocotte' and 'Montreux' were subjected to varying light treatments including LED flowering lamps and halogen lamps. The flowering lamps emitted a combination of red + far-red + white and red + white. Photoperiod was extended by operating all lamps for 7 hours in the night and the experiment ran from late fall to early spring. Results varied within species and cultivars in response to light and GA3. Light was the most effective on growth and flowering characteristics especially in liatris and both cultivars of dahlia. In liatris, flowering occurred 2 weeks earlier under sole LED lighting than under other light treatments and no supplemental light. Although flowering occurred earliest in both cultivars of dahlias under no light, plants under light treatments had greater height, width, and shoot weight. There were significant effects of GA3 on growth and flowering characteristics in dahlia cultivars and lily cultivars such as greater height, width, and flower number. A significant interaction of light with GA3 influenced height, width, mean flower number, flower diameter, days to anthesis, and flowering percentage in several crops. The role of silicon (Si) as a needed supplement in soilless media is gaining interest. This research studied the effects of diatomaceous earth (DE) as a supplemental Si source on growth and flower characteristics, physiology, and nutrient uptake of cut flowers such as Dahlia spp. (Cav) 'Dahlinova Montana', Rudbeckia hirta (L.) 'Denver Daisy', and Gerbera jamesonii (L.) 'Festival Light Eye White Shades'. Nine Si treatments were established, and plants were considered well-watered at 10 centibars or water-stressed at 20 centibars. Silicon treatments included application of DE across the top of the pots (top-dressed) incorporation, and Metro-Mix 360 media with and without Si. For each species, there were six pots per Si rate per irrigation treatment. Significant effects were seen from Si supplementation, irrigation, and interaction in all plants. Growth and flower characteristics, leaf nutrient content, and tolerance to stress were improved by application of DE.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
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655 7 $a Electronic books. $2 local $3 554714
690 $a 0471
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710 2 $a Oklahoma State University. $b Horticulture. $3 1191193
773 0 $t Masters Abstracts International $g 57-05(E).
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