GROWTH AND PHYSIOLOGY OF CITRUS ROOTSTOCKS UNDER SALT STRESS

被引：0
|
作者：
da Silva Sa, Francisco Vanies [1 ]
Barbosa Brito, Marcos Eric [2 ]
Lucena Moreira, Rolmlo Carantino [3 ]
Silva, Luderlandio de Andrade [3 ]
Soares Filho, Walter dos Santos [4 ]
de Figueiredo, Lizaiane Cardoso
Gheyi, Hans Raj [5 ]
Fernandes, Pedro Dantas [6 ]
机构：
[1] Fed Rural Semiarid Univ, Natl Postdoctoral Program, Mossoro, RN, Brazil
[2] Univ Fed Sergipe, Campus Sertao, Nossa Senhora Da Gloria, SE, Brazil
[3] Fed Univ Campina Grande UFCG, Agr Engn, Campina Grande, PB, Brazil
[4] Embrapa Cassava & Fruits, Cruz Das Almas, BA, Brazil
[5] Fed Univ Reconcavo Baiano UFRB, Cruz Das Almas, BA, Brazil
[6] Univ Fed Campina Grande, Campina Grande, PB, Brazil
来源：
BIOSCIENCE JOURNAL | 2018年 / 34卷 / 04期
关键词：
Citrus spp; Chlorophyll fluorescence; Growth rate; Gas exchange; Salinity; SEEDLINGS; SALINITY; HYBRIDS;
D O I：
暂无
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
In order to study the growth and physiology of citrus rootstocks under saline water irrigation, during formation of rootstocks, an assay was carried out in a factorial scheme, 2 x 6, corresponding to two levels of salinity of the nutrient solution: 0.3 and 4.0 dS m(-1) and six genotypes provided by the Citrus Breeding Program of Embrapa Cassava & Fruits-CBP, distributed in randomized block design with three replications. The genotypes were: 1.'Santa Cruz Rangpur' lime (SCRL) (Citrus limonia Osbeck), 2. 'Florida Rough' lemon (FRL) (Citrus jambhiri Lush.), 3. 'Volkamer' lemon (VKL) (C. volkameriana V. Ten. &Pasq.), 4. CSM x SWC- 028, 5. CSM x SWC- 033 and 6.CSM x SWC-041, the last three hybrids of common `Sunki' mandarin (CSM) [C.sunki (Hayata) hort. ex Tanaka] with 'Swingle' citrumelo (SWC) [C. paradisi Macfad. x Poncirus trifoliata (L.) Raf.]. Nucellar plants from these genotypes were grown in alternative hydroponic system, using Leonard jars. Application of nutrient solution made with saline water started from 90 days after sowing until 120 days, when the growth and physiology parameters of plants were evaluated. Salt stress influenced the growth and physiological parameters in all genotypes. Salt stress did not influence the chlorophyll a fluorescence in the genotypes VKL and CSM x SWC- 041, indicating no damage to the photosynthetic apparatus. The CSM x SWC- 041, 'Santa Cruz Rangpur' lime, 'Florida Rough' lemon and 'Volkamer' lemon are the more tolerant genotypes to salinity based on growth rate.
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页码：907 / 916
页数：10
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