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Comprehensive evaluation of abiotic stress tolerance and graft compatibility of Citrus junos cv. 'Shuzhen No.1'

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Název: Comprehensive evaluation of abiotic stress tolerance and graft compatibility of Citrus junos cv. 'Shuzhen No.1'
Autoři: Wen He, Rui Xie, Jiufeng Chai, Hao Wang, Yan Wang, Qing Chen, Zhiwei Wu, Mengyao Li, Yuanxiu Lin, Yunting Zhang, Ya Luo, Yong Zhang, Haoru Tang, Xiaorong Wang
Zdroj: Fruit Research, Vol 4, Iss 1, Pp 1-9 (2024)
Informace o vydavateli: Maximum Academic Press, 2024.
Rok vydání: 2024
Sbírka: LCC:Plant culture
Témata: citrus rootstock, shuzhen no.1, seed trait, abiotic stress, antioxidant system, scion–rootstock combination., Plant culture, SB1-1110
Popis: Citrus is one of the world's most economically important fruit crops cultivated by grafting. To support the growth of scion cultivars, rootstock is the primary source of resistance to various abiotic stresses. Herein, seedlings of two genotypes of Citrus junos Sieb. ex Tanaka (the novel rootstock 'Shuzhen No.1' and commonly used rootstock 'Ziyang Xiangcheng'), as well as three commonly used rootstocks including citrange (Citrus sinensis Osbeck. × Poncirus trifoliata Raf.), trifoliate orange (P. trifoliata), and red tangerine (Citrus tangerine Hort. Ex Tanaka), were used as testing materials. The seed characteristics were evaluated, and the rootstock seedlings were subjected to flooding, drought, alkaline, and freezing treatments. Over time, the contents of chlorophyll, soluble sugar, proline, malondialdehyde, and the activity of superoxide dismutase, peroxidase, and catalase in the leaves under different treatments were examined. Furthermore, five citrus varieties were grafted as scions onto one-year-old seedlings from the four rootstocks. Graft success, shoot growth, and leaf greenness were measured and compared. The physiological and biochemical changes in 'Shuzhen No.1' were found to be similar to those in 'Ziyang Xiangcheng'. 'Shuzhen No.1' exhibited greater tolerance to flooding, alkaline, and freezing stress compared to the other four widely used citrus rootstocks, as indicated by physiological and biochemical indexes and principal component analysis. Moreover, the five citrus varieties grafted onto 'Shuzhen No.1' demonstrated vigorous growth and tree vigor. These findings provide valuable insights for the application of 'Shuzhen No.1' and future research on citrus rootstock.
Druh dokumentu: article
Popis souboru: electronic resource
Jazyk: English
ISSN: 2769-4615
Relation: https://doaj.org/toc/2769-4615
DOI: 10.48130/frures-0023-0042
Přístupová URL adresa: https://doaj.org/article/1a43e076afa4493d989186f0f5e4260b
Přístupové číslo: edsdoj.1a43e076afa4493d989186f0f5e4260b
Databáze: Directory of Open Access Journals
Popis
Abstrakt:Citrus is one of the world's most economically important fruit crops cultivated by grafting. To support the growth of scion cultivars, rootstock is the primary source of resistance to various abiotic stresses. Herein, seedlings of two genotypes of Citrus junos Sieb. ex Tanaka (the novel rootstock 'Shuzhen No.1' and commonly used rootstock 'Ziyang Xiangcheng'), as well as three commonly used rootstocks including citrange (Citrus sinensis Osbeck. × Poncirus trifoliata Raf.), trifoliate orange (P. trifoliata), and red tangerine (Citrus tangerine Hort. Ex Tanaka), were used as testing materials. The seed characteristics were evaluated, and the rootstock seedlings were subjected to flooding, drought, alkaline, and freezing treatments. Over time, the contents of chlorophyll, soluble sugar, proline, malondialdehyde, and the activity of superoxide dismutase, peroxidase, and catalase in the leaves under different treatments were examined. Furthermore, five citrus varieties were grafted as scions onto one-year-old seedlings from the four rootstocks. Graft success, shoot growth, and leaf greenness were measured and compared. The physiological and biochemical changes in 'Shuzhen No.1' were found to be similar to those in 'Ziyang Xiangcheng'. 'Shuzhen No.1' exhibited greater tolerance to flooding, alkaline, and freezing stress compared to the other four widely used citrus rootstocks, as indicated by physiological and biochemical indexes and principal component analysis. Moreover, the five citrus varieties grafted onto 'Shuzhen No.1' demonstrated vigorous growth and tree vigor. These findings provide valuable insights for the application of 'Shuzhen No.1' and future research on citrus rootstock.
ISSN:27694615
DOI:10.48130/frures-0023-0042