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Kumar, P., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India, Department of Agriculture, Forestry, Nature and Energy, University of Tuscia, Viterbo, Italy
Edelstein, M., Newe Ya’ar Research Center, ARO, Ramat Yishay, Israel
Cardarelli, M., Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria, Centro di ricerca per lo studio delle Relazioni tra Pianta e Suolo, Roma, Italy
Ferri, E., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India
Colla, G., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India
A greenhouse experiment was conducted to determine the influence of long-term cadmium (Cd) exposure (0, 25, or 50 mM of Cd) on crop productivity, fruit quality, leaf chlorophyll content, fluorescence, and mineral composition in plants of tomato (Solanum lycopersicum L. cv. Ikram), either nongrafted, self-grafted, or grafted onto rootstocks of tomato (Maxifort or Unifort) and eggplant (Black Beauty). Both moderate (25mM) and high (50 mM) concentration of Cd in root environment considerably decreased the fruit yield and fruit number in response to Cd levels, whereasmean fruit weight decreased but was similar to both Cd supply levels. The fruit yield, shoot and root biomass, and leaf area (LA) were higher in plants grafted onto tomato rootstocks and especially onto Maxifort in comparison with nongrafted or self-grafted plants and especially grafted onto Black Beauty. The higher plant performance of tomato rootstock-grafted plants were related to higher chlorophyll fluorescence and photosynthetic pigments concentration in leaves associated with better nutrient translocation and availability (higher Ca, Mg, Fe, Mn, and Cu) in leaves. The content of Cd was also lower in leaves and fruits of Maxifort-grafted plants. Concerning fruit quality, especially peel color, toxicity symptoms, and Cd concentration, Black Beauty followed by Maxifort-grafted plants were better than the other grafting combinations. However, plants grafted onto Black Beauty rootstock resulted in lowest fruit yield and plant growth attributes due to lower nutrient uptake and translocation indicating some incompatibility reaction between Black Beauty rootstock and Ikram scion. © 2015 American Society for Horticultural Science. All rights reserved.
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Grafting affects growth, yield, nutrient uptake, and partitioning under cadmium stress in tomato
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Kumar, P., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India, Department of Agriculture, Forestry, Nature and Energy, University of Tuscia, Viterbo, Italy
Edelstein, M., Newe Ya’ar Research Center, ARO, Ramat Yishay, Israel
Cardarelli, M., Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria, Centro di ricerca per lo studio delle Relazioni tra Pianta e Suolo, Roma, Italy
Ferri, E., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India
Colla, G., ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, India
Grafting affects growth, yield, nutrient uptake, and partitioning under cadmium stress in tomato
A greenhouse experiment was conducted to determine the influence of long-term cadmium (Cd) exposure (0, 25, or 50 mM of Cd) on crop productivity, fruit quality, leaf chlorophyll content, fluorescence, and mineral composition in plants of tomato (Solanum lycopersicum L. cv. Ikram), either nongrafted, self-grafted, or grafted onto rootstocks of tomato (Maxifort or Unifort) and eggplant (Black Beauty). Both moderate (25mM) and high (50 mM) concentration of Cd in root environment considerably decreased the fruit yield and fruit number in response to Cd levels, whereasmean fruit weight decreased but was similar to both Cd supply levels. The fruit yield, shoot and root biomass, and leaf area (LA) were higher in plants grafted onto tomato rootstocks and especially onto Maxifort in comparison with nongrafted or self-grafted plants and especially grafted onto Black Beauty. The higher plant performance of tomato rootstock-grafted plants were related to higher chlorophyll fluorescence and photosynthetic pigments concentration in leaves associated with better nutrient translocation and availability (higher Ca, Mg, Fe, Mn, and Cu) in leaves. The content of Cd was also lower in leaves and fruits of Maxifort-grafted plants. Concerning fruit quality, especially peel color, toxicity symptoms, and Cd concentration, Black Beauty followed by Maxifort-grafted plants were better than the other grafting combinations. However, plants grafted onto Black Beauty rootstock resulted in lowest fruit yield and plant growth attributes due to lower nutrient uptake and translocation indicating some incompatibility reaction between Black Beauty rootstock and Ikram scion. © 2015 American Society for Horticultural Science. All rights reserved.
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