Submitted to: Proceedings of Congreso Internacional de Agricultura Para Zonas Aridas
Publication Type: Proceedings
Publication Acceptance Date: April 1, 1998
Publication Date: N/A
Interpretive Summary: High concentrations of boron have been measured in agricultural soils and groundwater in the west side of central California. Boron (B) is detrimental to most agronomic crops when present greater than 5 ppm B. The Water Management Research Laboratory (WMRL) and Chilean scientists are evaluating B tolerance and accumulation in such crops as tomato, carrot, corn, and alfalfa, which have been growing for many years under high B conditions in Chile. Data collected from the evaluation studies will provide useful information for growers cultivating crops in high B soils in both central California and in northern Chile. Sharing information on B tolerance in plants between Chile and California scientists illustrates the importance for cultivating international collaborations for collecting potential B tolerant germplasm in different countries.
Elevated levels of boron (B) in irrigation water are generally known to be detrimental to most crops grown in agriculture. Due to competitive demands for good quality water by the urban community, growers in agricultural regions of the world where irrigation is essential, e.g., California, Chile, are using more poor quality water for irrigation. Continued use of waters with high B concentrations poses a hazard for B-sensitive crops. Apparently, some crops in northern Chile where high B waters are used for irrigation have developed a tolerance for B applied via irrigation water. Data is presented on germination and B accumulation in germplasm collected from high B regions in Chile and in germplasm commonly used in California after irrigation with B-laden water.