(一)白菜、甘蓝、花心菜 这三种蔬菜种子,可采用平整硬物压搓的方法进行鉴别:若经压搓的种子,粒皮脱落,则是上一年的陈种;种粒发黑或呈老黄色,则是多年的陈种;如果压搓的种子粒皮不开,种粒呈绿黄色,则是当年的新种。 (二)香莱 鉴别香菜新陈种子,可看虫口:无虫口的是新种;有虫口 (A) cabbage, cabbage, cabbage these three kinds of vegetable seeds can be used to determine the pressure of flat hard rubbing method: If pressed by the rubbing of the seeds, peel off, it is the Chen species of the previous year; seed hair Black or was old yellow, is the Chen species for many years; if pressed rubbing the seed peel is not open, the seed is greenish yellow, is the new species of the year. (B) Hong Lai identification coriander new seeds, you can see the insect population: no insect population is a new species; insect population