据统计,在2000年之后,人类所需的粮食来源的四分之三都必须靠提高现有耕地面积的单产来解决。提高粮食单产主要措施有遗传工程。根围技术及植物生长调节剂,以及这些技术的综合运用,其中植物生长调节剂的运用具有用量小、增产作用大、使用方便安全,投入小见效快等许多优点,尤其受到广泛关注。近日,记者走访武汉大学教授徐 According to statistics, after 2000, three-quarters of the food sources needed by humans must be solved by increasing the yield of existing arable land. The main measures to increase grain yield are genetic engineering. Rhizome technology and plant growth regulators, as well as the comprehensive application of these technologies, in which the use of plant growth regulators with a small amount, a large role in increasing production, easy to use and safe, quick and many small advantages such as input, in particular, has received widespread attention. Recently, the reporter visited Professor Xu of Wuhan University