Flowering characteristics and breeding system of Deutzia parviflora
[Objective] The study aims to examine the flowering and breeding characteristics of the native plant Deutzia parviflora, promote the resistance breeding and resource utilization of Deutzia as well as enrich the species of flowering shrubs in the northern region. [Methods] The morphological charact...
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| Format: | Article |
| Language: | zho |
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Science Press
2025-01-01
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| Series: | Xibei zhiwu xuebao |
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| Online Access: | http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240355?st=article_issue |
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| _version_ | 1823858085902417920 |
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| author | WANG Qi LI Jinyu WANG Xinyi WANG Yixuan GUO Wei YUAN Tao |
| author_facet | WANG Qi LI Jinyu WANG Xinyi WANG Yixuan GUO Wei YUAN Tao |
| author_sort | WANG Qi |
| collection | DOAJ |
| description | [Objective] The study aims to examine the flowering and breeding characteristics of the native
plant Deutzia parviflora, promote the resistance breeding and resource utilization of Deutzia as well as
enrich the species of flowering shrubs in the northern region. [Methods] The morphological characteristics
of flower organs, flowering phenology, pollen viability, stigma acceptability, and breeding system of D .
parviflora were observed and analyzed. [Results] (1) D . parviflora began to bloom in late April and ended
in mid-May in Beijing. Its flowering type is concentrated flowering, with a group flowering period of
22-23 d and a single flowering period of 8 d, which can be divided into 8 stages. (2) The stigma acceptability
at the petal flattening stage was the strongest, and the pollen viability at the stamen expansion stage
was the highest. (3) The optimal medium for pollen viability determination was: 100.0 g/L sucrose +
0.3 g/L H3BO3 + 0.2 g/L CaCl2. (4) Pollen can be dried and stored in the short term (within 10 d), at
-20 ℃ and -80 ℃ in the medium term (10-30 d), and at -80 ℃ for a long time (more than 30 d). (5)
The pollen-ovule ratio of D . parviflora was 23 695.93, the out-crossing index was 3, the fruit setting
rate of xenogamy was the highest. [Conclusion] There is no apomixis in D . parviflora and the breeding
system is a mixed mating system, dominanted by outcrossing mechanism, requiring pollinators, and it is
more fertile and can be used as a parent for hybrid breeding in the genus Deutzia. Its low self-incompatibility
is not due to dichogamy and herkogamy. |
| format | Article |
| id | doaj-art-e0943e2ecc4c4670862383a85f5b88da |
| institution | Kabale University |
| issn | 1000-4025 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Science Press |
| record_format | Article |
| series | Xibei zhiwu xuebao |
| spelling | doaj-art-e0943e2ecc4c4670862383a85f5b88da2025-02-11T15:08:52ZzhoScience PressXibei zhiwu xuebao1000-40252025-01-014510103011410.7606/j.issn.1000-4025.20240355Flowering characteristics and breeding system of Deutzia parvifloraWANG Qi0LI Jinyu1WANG Xinyi2WANG Yixuan3GUO Wei4YUAN Tao5Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, ChinaBeijing Academy of Forestry and Landscape Architecture, Beijing 100102, ChinaBeijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China[Objective] The study aims to examine the flowering and breeding characteristics of the native plant Deutzia parviflora, promote the resistance breeding and resource utilization of Deutzia as well as enrich the species of flowering shrubs in the northern region. [Methods] The morphological characteristics of flower organs, flowering phenology, pollen viability, stigma acceptability, and breeding system of D . parviflora were observed and analyzed. [Results] (1) D . parviflora began to bloom in late April and ended in mid-May in Beijing. Its flowering type is concentrated flowering, with a group flowering period of 22-23 d and a single flowering period of 8 d, which can be divided into 8 stages. (2) The stigma acceptability at the petal flattening stage was the strongest, and the pollen viability at the stamen expansion stage was the highest. (3) The optimal medium for pollen viability determination was: 100.0 g/L sucrose + 0.3 g/L H3BO3 + 0.2 g/L CaCl2. (4) Pollen can be dried and stored in the short term (within 10 d), at -20 ℃ and -80 ℃ in the medium term (10-30 d), and at -80 ℃ for a long time (more than 30 d). (5) The pollen-ovule ratio of D . parviflora was 23 695.93, the out-crossing index was 3, the fruit setting rate of xenogamy was the highest. [Conclusion] There is no apomixis in D . parviflora and the breeding system is a mixed mating system, dominanted by outcrossing mechanism, requiring pollinators, and it is more fertile and can be used as a parent for hybrid breeding in the genus Deutzia. Its low self-incompatibility is not due to dichogamy and herkogamy.http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240355?st=article_issuedeutzia parvifloraflower organflowering phenologypollen viability |
| spellingShingle | WANG Qi LI Jinyu WANG Xinyi WANG Yixuan GUO Wei YUAN Tao Flowering characteristics and breeding system of Deutzia parviflora Xibei zhiwu xuebao deutzia parviflora flower organ flowering phenology pollen viability |
| title | Flowering characteristics and breeding system of Deutzia parviflora |
| title_full | Flowering characteristics and breeding system of Deutzia parviflora |
| title_fullStr | Flowering characteristics and breeding system of Deutzia parviflora |
| title_full_unstemmed | Flowering characteristics and breeding system of Deutzia parviflora |
| title_short | Flowering characteristics and breeding system of Deutzia parviflora |
| title_sort | flowering characteristics and breeding system of deutzia parviflora |
| topic | deutzia parviflora flower organ flowering phenology pollen viability |
| url | http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240355?st=article_issue |
| work_keys_str_mv | AT wangqi floweringcharacteristicsandbreedingsystemofdeutziaparviflora AT lijinyu floweringcharacteristicsandbreedingsystemofdeutziaparviflora AT wangxinyi floweringcharacteristicsandbreedingsystemofdeutziaparviflora AT wangyixuan floweringcharacteristicsandbreedingsystemofdeutziaparviflora AT guowei floweringcharacteristicsandbreedingsystemofdeutziaparviflora AT yuantao floweringcharacteristicsandbreedingsystemofdeutziaparviflora |