Bibliographic citations
Calero, E., (2024). Fitoextracción de cadmio en suelos contaminados y fertilizados con fósforo usando Helianthus annuus asociado con el hongo micorrítico Glomus intraradices [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6315
Calero, E., Fitoextracción de cadmio en suelos contaminados y fertilizados con fósforo usando Helianthus annuus asociado con el hongo micorrítico Glomus intraradices []. PE: Universidad Nacional Agraria La Molina; 2024. https://hdl.handle.net/20.500.12996/6315
@misc{renati/1114306,
title = "Fitoextracción de cadmio en suelos contaminados y fertilizados con fósforo usando Helianthus annuus asociado con el hongo micorrítico Glomus intraradices",
author = "Calero Rios, Emilee Nahomi",
publisher = "Universidad Nacional Agraria La Molina",
year = "2024"
}
The study was conducted at the Soil Fertility Laboratory and Greenhouse "Sven Villagarcía Hermoza" of the National Agrarian University La Molina, Lima, Peru. 4 kg pots with sterilized sandy loam soil were used. The pots were contaminated with three levels of cadmium (0, 15, 30 mg Cd kg-1) and fertilized with two levels of phosphorus (0, 200 mg phosphorus kg-1). Sunflower was planted, inoculating one group with the mycorrhizal fungus Glomus intraradices and leaving another group uninoculated. A 2x2x3 factorial experimental design with five replicates was applied. Plant height, cadmium concentration in root, stem, and inflorescence, total cadmium extraction, translocation factor, and membrane stability index (MSI) were evaluated at 78 days after planting. The results revealed no significant differences in the interaction among the three study factors. It was observed that cadmium doses did not negatively affect sunflower's vegetative development, with height being unaffected by the established treatments. Overall, there was an increase in cadmium concentration in the plant as the metal dose increased, especially in the root. In total Cd extraction by sunflower, plants inoculated with mycorrhizae recorded a value of 86.40 µg Cd/pot compared to uninoculated ones with 51 µg Cd/pot. The translocation factor was less than 1, and MSI showed no significant differences. In conclusion, it can be stated that sunflower exhibits high resistance to cadmium, playing a phytostabilizing role by accumulating most of the contaminant in the root, and its metal extraction capacity is enhanced when establishing a symbiosis with mycorrhizae.
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