Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets

For Lilium davidii var. unicolor bulblets produced by scale propagation, the effects of cold treatments on the sprouting and development of bulblets were studied. The results showed that 5 °C was a more suitable temperature than 2 or 10 °C. Bulblets treated at 5 °C for 3 weeks presented the best uni...

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Main Authors: Nan Tang, Rulong Jia, Jicheng Yin, Yan Wang, Daocheng Tang
Format: Article
Language:English
Published: American Society for Horticultural Science (ASHS) 2021-08-01
Series:HortScience
Subjects:
Online Access:https://journals.ashs.org/hortsci/view/journals/hortsci/56/9/article-p1119.xml
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author Nan Tang
Rulong Jia
Jicheng Yin
Yan Wang
Daocheng Tang
author_facet Nan Tang
Rulong Jia
Jicheng Yin
Yan Wang
Daocheng Tang
author_sort Nan Tang
collection DOAJ
description For Lilium davidii var. unicolor bulblets produced by scale propagation, the effects of cold treatments on the sprouting and development of bulblets were studied. The results showed that 5 °C was a more suitable temperature than 2 or 10 °C. Bulblets treated at 5 °C for 3 weeks presented the best uniformity of seedling emergence, and the sprouting rate was 100%. Moreover, the largest bulbs were observed in this treatment after a growing season. It was found that long storage at low temperatures is unfavorable for bulb development. The weight and circumference of bulbs from bulblets that were cold-treated for more than 5 weeks were significantly less than those treated for 1 to 4 weeks. During the first 4 weeks of cold storage, the starch content of bulblets decreased significantly, coinciding with an increase in soluble sugars. The starch and soluble sugar contents in bulblets stored at 2 and 5 °C changed faster than those in bulblets stored at 10 °C. However, the effect of temperature on carbohydrates diminished gradually as the storage time increased. Long storage of bulblets at low temperatures is not good for subsequent growth and development. The results of this study provide important information for accelerating the scale propagation of L. davidii var. unicolor and maximizing bulb yield.
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spelling doaj.art-1a6ffa57df3e4625bce79f32948f163a2022-12-21T18:33:18ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342021-08-0156911191124https://doi.org/10.21273/HORTSCI15951-21Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor BulbletsNan TangRulong JiaJicheng YinYan WangDaocheng TangFor Lilium davidii var. unicolor bulblets produced by scale propagation, the effects of cold treatments on the sprouting and development of bulblets were studied. The results showed that 5 °C was a more suitable temperature than 2 or 10 °C. Bulblets treated at 5 °C for 3 weeks presented the best uniformity of seedling emergence, and the sprouting rate was 100%. Moreover, the largest bulbs were observed in this treatment after a growing season. It was found that long storage at low temperatures is unfavorable for bulb development. The weight and circumference of bulbs from bulblets that were cold-treated for more than 5 weeks were significantly less than those treated for 1 to 4 weeks. During the first 4 weeks of cold storage, the starch content of bulblets decreased significantly, coinciding with an increase in soluble sugars. The starch and soluble sugar contents in bulblets stored at 2 and 5 °C changed faster than those in bulblets stored at 10 °C. However, the effect of temperature on carbohydrates diminished gradually as the storage time increased. Long storage of bulblets at low temperatures is not good for subsequent growth and development. The results of this study provide important information for accelerating the scale propagation of L. davidii var. unicolor and maximizing bulb yield.https://journals.ashs.org/hortsci/view/journals/hortsci/56/9/article-p1119.xmlchilling treatmentgerminationlanzhou lilyvegetative propagation
spellingShingle Nan Tang
Rulong Jia
Jicheng Yin
Yan Wang
Daocheng Tang
Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
HortScience
chilling treatment
germination
lanzhou lily
vegetative propagation
title Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
title_full Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
title_fullStr Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
title_full_unstemmed Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
title_short Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets
title_sort effects of cold treatments on seedling emergence and growth of lilium davidii var unicolor bulblets
topic chilling treatment
germination
lanzhou lily
vegetative propagation
url https://journals.ashs.org/hortsci/view/journals/hortsci/56/9/article-p1119.xml
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AT rulongjia effectsofcoldtreatmentsonseedlingemergenceandgrowthofliliumdavidiivarunicolorbulblets
AT jichengyin effectsofcoldtreatmentsonseedlingemergenceandgrowthofliliumdavidiivarunicolorbulblets
AT yanwang effectsofcoldtreatmentsonseedlingemergenceandgrowthofliliumdavidiivarunicolorbulblets
AT daochengtang effectsofcoldtreatmentsonseedlingemergenceandgrowthofliliumdavidiivarunicolorbulblets