一近代农业发展的现实证明,无论是发达国家或发展中家,对优良种苗在农业生产上所起的决定性作用都给予了重新评价。加拿大、法国、菲律宾等陆续在玉米、油莱、水稻生产上取得了突破。晚近最明显的的例子是印度农业状况的明显好转。因此,当前千方百计地从各种来源和渠道,引进可利用的 The reality of modern agricultural development proves that both the developed countries and the developing ones give a fresh assessment of the decisive role played by fine seedlings in agricultural production. Canada, France, the Philippines and others have made breakthroughs in corn, oil Lai, rice production in succession. The most obvious example lately is the clear turnaround in agricultural conditions in India. Therefore, at present, we are trying to introduce available from a variety of sources and channels