Maize ( L.) is one of the most important food and feed crops in China, with a cultivation area of more than 40 million hectares (http://www.fao.
View Article and Find Full Text PDFHead lettuce (Lactuca sativa L.) is an important crop for fresh consumption in China. In Shandong Province, head lettuce is planted in spring and in autumn each year.
View Article and Find Full Text PDFAmerican ginseng (Panax quinquefolius) is a perennial herb whose dried roots are used for health care products, medicine, and food in China (Yuan et al. 2010). Shandong Province is the main area growing American ginseng and contributes more than 50% of the production in China.
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