论文部分内容阅读
总结多年经验,提出8条从外观直接有效地鉴定核桃嫁接苗优劣、真伪的简单易行的方法。
Summed up many years of experience, put forward 8 directly from the appearance of walnut grafted seedlings effective identification of the merits, authenticity of a simple and easy way.