Journal
PLANTS-BASEL
Volume 12, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/plants12020274
Keywords
Yucca schidigera; Brassica oleracea; biostimulants; early vigor; natural fungicides; salt stress; drought stress; germination
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Climate change is leading to increased drought and salinity, which threatens food production. Biostimulants, such as yucca extracts, have been found to promote plant growth under different abiotic stress conditions. These extracts have shown particular effectiveness in enhancing germination and early vigor, as well as acting as a natural fungicide. Overall, yucca extracts offer a new and useful tool for farmers to combat the effects of climate change on crop production.
Climate change is increasing drought and salinity in many cultivated areas, therefore threatening food production. There is a great demand for novel agricultural inputs able to maintain yield under the conditions imposed by the anthropogenic global warming. Biostimulants have been proposed as a useful tool to achieve this objective. We have investigated the biostimulant effect of different yucca (Yucca schidigera) extracts on plant growth at different stages of development under different abiotic stress conditions. The extracts were tested in the model plant Arabidopsis thaliana, and in three different crops; tomato (Solanum lycopersicum var microtom), broccoli (Brassica oleracea var. italica) and lettuce (Lactuca sativa var romana). We have found that the investigated extracts are able to promote germination and early vigor under drought/osmotic and salt stress induced either by sodium chloride or lithium chloride. This effect is particularly strong in Arabidopsis thaliana and in the Brassicaceae broccoli. We have also determined using antibiograms against the model yeast Saccharomyces cerevisiae that the evaluated extracts may be used also as a natural fungicide. The results in this report show that yucca extracts may be used to enhance early vigor in some crops and as a natural fungicide, providing a new and useful tool for farmers.
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