Aloe,a perennial evergreen thick herb of Lily family with over 80 kinds of medical contents and health protection capabilities of increasing immunity,anti radiation,anti cancer,anti inflammation,delay of decrepit,lowering of blood pressure,and others.The use of aloe has extended to dyestuff,metallurgy,textile and agricultural chemicals,and is of bright prospect of development and utilization.Because of its strong drought enduring ability and high economic value,aloe is of great significance to the economy development,poverty alleviation and improvement and harness of loess in the areas which is suitable to aloe plantation and is suffered from severe soil and water loss.Therefore,knowledge of the biological characteristics,varieties and their cultivation,reproduction and processing of aloe are introduced in the paper.
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