Guayule as an alternative crop for natural rubber production grown in B- and Se-laden soil in Central California
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Authors
Bañuelos, Gary S.Placido, Dante F.
Zhu, Hui
Centofanti, Tiziana
Zambrano, Maria C.
Heinitz, Claire
Lone, Todd A.
McMahan, Colleen M.
Publisher
ElsevierType
Journal articleTitle / Series / Name
Industrial Crops and ProductsPublication Volume
189Date
2022
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Show full item recordAbstract
The potential of growing guayule (Parthenium argentatum A. Gray) as an alternative crop for saline, boron- and selenium-laden soils in the Westside of central California was evaluated in both greenhouse and drainage sediment field experiments. In the greenhouse experiment, salt and boron (B) tolerance and selenium (Se) accumulation were evaluated in guayule accessions AZ-1 thru AZ-6 grown in saline soil and irrigated with simulated saline drainage water. The guayule accessions AZ1, AZ5, and AZ6 tolerated salinity and B levels better than the others. Consequently, AZ1, AZ5, and AZ6 were then planted in field sediment plots with slight salinity and moderate B levels. In both greenhouse and field studies, concentrations of Se, B, and Na in the leaveswere as high as 0.6–8 mg/kg dry weight (DW), 2000 mg/kg DW, and 17,500 mg/kg DW, respectively, in both experiments. In both experiments, concentrations of rubber and resin ranged from 4 to 14 w/w% in the stems, and applied salinity increased rubber and resin production in some accessions. This two-phase study provides additional evidence for guayule accessions (AZ1–6) as a promising rubber-producing crop that tolerates saline irrigation water in poor quality soils. In addition, guayule may be useful in the gentle phytoremediation of Se in poor quality soils or in soils irrigated with Se-laden drainage water.identifiers
10.1016/j.indcrop.2022.115799ae974a485f413a2113503eed53cd6c53
10.1016/j.indcrop.2022.115799
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