Screening of citrus scion-rootstock combinations for tolerance to water salinity during seedling formation



Document title: Screening of citrus scion-rootstock combinations for tolerance to water salinity during seedling formation
Journal: Acta scientiarum. Agronomy
Database: PERIÓDICA
System number: 000459939
ISSN: 1679-9275
Authors: 1
2
3
4
5
6
Institutions: 1Universidade Federal de Sergipe, Centro de Ciencias Agrarias, Nossa Senhora da Gloria, Sergipe. Brasil
2Universidade Federal de Campina Grande, Centro de Tecnologia e Recursos Naturais, Campina Grande, Paraiba. Brasil
3Universidade Federal do Reconcavo da Bahia, Nucleo de Engenharia de Agua e Solo, Cruz das Almas, Bahia. Brasil
4Universidade Federal de Campina Grande, Centro de Ciencias e Tecnologia Agroalimentar, Pombal, Paraiba. Brasil
5Empresa Brasileira de Pesquisa Agropecuaria, Mandioca e Fruticultura, Cruz das Almas, Bahia. Brasil
6Universidade Federal do Amapa, Mazagao, Amapa. Brasil
Year:
Volumen: 43
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract Arid and semiarid regions are vulnerable to water deficits and salinity. Citrus plants are sensitive to saline stress and require the use of tolerant scion-rootstock combinations. Thus, this study aimed to evaluate and classify citrus scion-rootstock combinations with respect to their tolerance to salinity during seedling formation in a protected environment. An experiment was conducted in a randomized block design with a 5 x 12 x 2 factorial scheme corresponding to five levels of water salinity (0.8, 1.6, 2.4, 3.2, and 4.0 dS m-1) applied in 12 citrus rootstocks grafted with two scion varieties: ‘Tahiti’ acid lime and ‘Star Ruby’ grapefruit. The scion-rootstock combinations were evaluated for accumulated dry matter and survival index at 330 days after sowing the rootstocks. Salinity exerted different effects on the dry matter formation of scion-rootstock combinations. ‘Star Ruby’ was less sensitive to salinity, particularly when the rootstocks were the hybrids from ‘Sunki of Florida’ mandarin (TSKFL) with ‘Troyer’ citrange (CTTR) - 013 (TSKFL x CTTR - 013), common ‘Sunki’ mandarin (TSKC) with ‘Argentina’ citrange (CTARG) - 019 (TSKC x CTARG - 019), TSKC with ‘Swingle’ citrumelo (CTSW) - 031 (TSKC x CTSW - 031), and the trifoliate hybrid (HTR) - 069, as well as the varieties Volkamer lemon and Santa Cruz Rangpur lime. When grafted with ‘Tahiti’ acid lime, the rootstocks displaying the less sensitive to salinity were TSKFL x CTTR - 013 and TSKC x CTARG - 019
Disciplines: Agrociencias
Keyword: Frutales,
Fitotecnia,
Citrus,
Poncirus,
Híbridos,
Tolerancia a la salinidad,
Plántulas,
Injertos
Keyword: Fruit trees,
Crop husbandry,
Citrus,
Poncirus,
Hybrids,
Salinity tolerance,
Seedlings,
Grafts
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