Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks
Drought and flooding conditions are increasingly common abiotic factors that affect citrus crops in both the Mediterranean Basin and Florida. Furthermore, emerging diseases, such as Huanglongbing (HLB), are a potential risk for these crops in those producing areas. This study aimed to evaluate the b...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/7/10/336 |
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| author | Lidia Aparicio-Durán Frederick G. Gmitter Jr. Juan M. Arjona-López Rocío Calero-Velázquez Áurea Hervalejo Francisco J. Arenas-Arenas |
| author_facet | Lidia Aparicio-Durán Frederick G. Gmitter Jr. Juan M. Arjona-López Rocío Calero-Velázquez Áurea Hervalejo Francisco J. Arenas-Arenas |
| author_sort | Lidia Aparicio-Durán |
| collection | DOAJ |
| description | Drought and flooding conditions are increasingly common abiotic factors that affect citrus crops in both the Mediterranean Basin and Florida. Furthermore, emerging diseases, such as Huanglongbing (HLB), are a potential risk for these crops in those producing areas. This study aimed to evaluate the behavior under water-stress treatments of three new citrus rootstocks (UFR-6, B11R5T60, and 2247 x 6070-02-2) with reported tolerance of HLB, comparing them with a common commercial citrus rootstock (Carrizo citrange). Four water conditions were established: Control, Medium Water Stress (MWS), Drought, and Flooding. Chlorophyll index (SPAD), growth in height, relative growth rate, biomass (fresh and dry weight) and plant water status were evaluated. Citru rootstock response were different for each genotype; Carrizo citrange was negatively affected by all water treatments in the chlorophyll index (SPAD) and biomass production. By contrast, UFR-6 showed a positive response in SPAD and growth under MWS and Drought, B11R5T60 displayed similar behavior to Control under all water stresses, and the response of 2247 x 6070-02-2 under MWS treatment was adequate but was not under Drought or Flooding conditions. Our study describes the behavior of these promising new citrus rootstocks against water stress; B11R5T60 exhibiting the best performance. These results can be useful for the citrus industry to address water-stress problems in these crops. |
| first_indexed | 2024-03-10T06:31:37Z |
| format | Article |
| id | doaj.art-3d5b99097286428fb114eb901da31b18 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-10T06:31:37Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-3d5b99097286428fb114eb901da31b182023-11-22T18:26:42ZengMDPI AGHorticulturae2311-75242021-09-0171033610.3390/horticulturae7100336Water-Stress Influences on Three New Promising HLB-Tolerant Citrus RootstocksLidia Aparicio-Durán0Frederick G. Gmitter Jr.1Juan M. Arjona-López2Rocío Calero-Velázquez3Áurea Hervalejo4Francisco J. Arenas-Arenas5“Las Torres” Center, Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Alcalá del Río, SpainCitrus Research and Education Center, Department of Horticultural Sciences, IFAS, University of Florida, Lake Alfred, FL 33850, USA“Las Torres” Center, Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Alcalá del Río, Spain“Las Torres” Center, Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Alcalá del Río, Spain“Las Torres” Center, Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Alcalá del Río, Spain“Las Torres” Center, Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Alcalá del Río, SpainDrought and flooding conditions are increasingly common abiotic factors that affect citrus crops in both the Mediterranean Basin and Florida. Furthermore, emerging diseases, such as Huanglongbing (HLB), are a potential risk for these crops in those producing areas. This study aimed to evaluate the behavior under water-stress treatments of three new citrus rootstocks (UFR-6, B11R5T60, and 2247 x 6070-02-2) with reported tolerance of HLB, comparing them with a common commercial citrus rootstock (Carrizo citrange). Four water conditions were established: Control, Medium Water Stress (MWS), Drought, and Flooding. Chlorophyll index (SPAD), growth in height, relative growth rate, biomass (fresh and dry weight) and plant water status were evaluated. Citru rootstock response were different for each genotype; Carrizo citrange was negatively affected by all water treatments in the chlorophyll index (SPAD) and biomass production. By contrast, UFR-6 showed a positive response in SPAD and growth under MWS and Drought, B11R5T60 displayed similar behavior to Control under all water stresses, and the response of 2247 x 6070-02-2 under MWS treatment was adequate but was not under Drought or Flooding conditions. Our study describes the behavior of these promising new citrus rootstocks against water stress; B11R5T60 exhibiting the best performance. These results can be useful for the citrus industry to address water-stress problems in these crops.https://www.mdpi.com/2311-7524/7/10/336droughtfloodingHLBstomatal conductancewater status |
| spellingShingle | Lidia Aparicio-Durán Frederick G. Gmitter Jr. Juan M. Arjona-López Rocío Calero-Velázquez Áurea Hervalejo Francisco J. Arenas-Arenas Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks Horticulturae drought flooding HLB stomatal conductance water status |
| title | Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks |
| title_full | Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks |
| title_fullStr | Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks |
| title_full_unstemmed | Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks |
| title_short | Water-Stress Influences on Three New Promising HLB-Tolerant Citrus Rootstocks |
| title_sort | water stress influences on three new promising hlb tolerant citrus rootstocks |
| topic | drought flooding HLB stomatal conductance water status |
| url | https://www.mdpi.com/2311-7524/7/10/336 |
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