Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species

Golden camellia flowers are treasured for their unique yellow color and bioactive chemical compounds. Because of its high market demand, there is strong interest in inducing early flowering in golden camellias for earlier harvest. Previously, we have successfully induced flowering in Camelia chrysan...

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Autores principales:	Xiaojuan Wei, Siyu Wu, Xiaojing Liang, Kun Wang, Yuejuan Li, Baocai Li, Jinlin Ma, Haiying Liang
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Horticultural Science (ASHS) 2021
Materias:	endogenous phytohormone lowering induction juvenility vegetative to reproductive phase transition Plant culture SB1-1110
Acceso en línea:	https://doi.org/10.21273/HORTSCI16042-21 https://doaj.org/article/940f3c51e1074ad08c3496e1badab4ac
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spelling	oai:doaj.org-article:940f3c51e1074ad08c3496e1badab4ac2021-11-08T18:37:13ZPaclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Specieshttps://doi.org/10.21273/HORTSCI16042-212327-9834https://doaj.org/article/940f3c51e1074ad08c3496e1badab4ac2021-09-01T00:00:00Zhttps://journals.ashs.org/hortsci/view/journals/hortsci/56/10/article-p1258.xmlhttps://doaj.org/toc/2327-9834Golden camellia flowers are treasured for their unique yellow color and bioactive chemical compounds. Because of its high market demand, there is strong interest in inducing early flowering in golden camellias for earlier harvest. Previously, we have successfully induced flowering in Camelia chrysantha (Hu) Tuyama juvenile grafted plants and seedlings with paclobutrazol (PBZ). During this study, we investigated the efficacy of PBZ on C. tamdaoensis juvenile rooted cuttings. C. tamdaoensis is a yellow-flowering camellia species that is native to Vietnam and valued by the local population. It was found that applications of 100 and 200 ppm PBZ generated an average of 13 and 30 flowers per 5-year-old plant, respectively. None of the control plants flowered. The average flower diameter was 17.2 cm for 100-ppm-induced flowers and 26.0 cm for 200-ppm-induced flowers. The dynamics of various phytohormones (indoleacetic acid, abscisic acid, salicylic acid, and jasmonic acid) were altered by PBZ treatment. It is suggested that low indoleacetic acid, high abscisic acid, and jasmonic acid and a gradual increase in salicylic acid benefit floral initiation of golden camellias. The study provided the first insight regarding the action mechanism of PBZ for the initiation of camellia flowering.Xiaojuan WeiSiyu WuXiaojing LiangKun WangYuejuan LiBaocai LiJinlin MaHaiying LiangAmerican Society for Horticultural Science (ASHS)articleendogenous phytohormonelowering inductionjuvenilityvegetative to reproductive phase transitionPlant cultureSB1-1110ENHortScience, Vol 56, Iss 10, Pp 1258-1262 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	endogenous phytohormone lowering induction juvenility vegetative to reproductive phase transition Plant culture SB1-1110
spellingShingle	endogenous phytohormone lowering induction juvenility vegetative to reproductive phase transition Plant culture SB1-1110 Xiaojuan Wei Siyu Wu Xiaojing Liang Kun Wang Yuejuan Li Baocai Li Jinlin Ma Haiying Liang Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
description	Golden camellia flowers are treasured for their unique yellow color and bioactive chemical compounds. Because of its high market demand, there is strong interest in inducing early flowering in golden camellias for earlier harvest. Previously, we have successfully induced flowering in Camelia chrysantha (Hu) Tuyama juvenile grafted plants and seedlings with paclobutrazol (PBZ). During this study, we investigated the efficacy of PBZ on C. tamdaoensis juvenile rooted cuttings. C. tamdaoensis is a yellow-flowering camellia species that is native to Vietnam and valued by the local population. It was found that applications of 100 and 200 ppm PBZ generated an average of 13 and 30 flowers per 5-year-old plant, respectively. None of the control plants flowered. The average flower diameter was 17.2 cm for 100-ppm-induced flowers and 26.0 cm for 200-ppm-induced flowers. The dynamics of various phytohormones (indoleacetic acid, abscisic acid, salicylic acid, and jasmonic acid) were altered by PBZ treatment. It is suggested that low indoleacetic acid, high abscisic acid, and jasmonic acid and a gradual increase in salicylic acid benefit floral initiation of golden camellias. The study provided the first insight regarding the action mechanism of PBZ for the initiation of camellia flowering.
format	article
author	Xiaojuan Wei Siyu Wu Xiaojing Liang Kun Wang Yuejuan Li Baocai Li Jinlin Ma Haiying Liang
author_facet	Xiaojuan Wei Siyu Wu Xiaojing Liang Kun Wang Yuejuan Li Baocai Li Jinlin Ma Haiying Liang
author_sort	Xiaojuan Wei
title	Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
title_short	Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
title_full	Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
title_fullStr	Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
title_full_unstemmed	Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species
title_sort	paclobutrazol modulates endogenous level of phytohormones in inducing early flowering in camellia tamdaoensis hakoda et ninh, a golden camellia species
publisher	American Society for Horticultural Science (ASHS)
publishDate	2021
url	https://doi.org/10.21273/HORTSCI16042-21 https://doaj.org/article/940f3c51e1074ad08c3496e1badab4ac
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Paclobutrazol Modulates Endogenous Level of Phytohormones in Inducing Early Flowering in Camellia tamdaoensis Hakoda et Ninh, a Golden Camellia Species

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