作物名称     项目       级别       纯度      净度     发芽率    水分

西瓜         亲本       原种       99.7      99.0      90       8.0
                        良种       99.0
            杂交种      一级       98.0      99.0      90       8.0
                        二级       95.0      

冬瓜                    原种       98.0      99.0      70       9.0 
                        良种       96.0                60