1) 1st class certisify seed potato
一级种
1.
The results showed that the basic seed,1st class certisify seed potato,in terms of plant height,single plant stems quantity,stem-leaf fresh weight,single plant tubers number and yield were much better than thoes of micro tuber and seconed class certicify seed potato;the yield used basic seed,1st class certicify seed was significantly higher than that of other classes seed potatoes.
结果表明:采用原种、一级种作种薯,无论在株高、单株分茎数、单株茎叶鲜重,还是在单株结薯个数与单株块茎产量上都明显优于微型薯和二级种;不同种级间原种、一级种的产量明显高于其他种级,一级种整薯产量最高,平均为51919。
2) first original seed potato
一级原种
1.
The randomized block design was conducted to study the effects of different potato weight and planting density on yield of first original seed potato in mini-potato with virus-free.
通过对马铃薯脱毒微型薯4个粒重水平和4个密度水平进行比较试验,结果表明:在脱毒马铃薯一级原种的繁育中,为了提高种薯的整齐度,进而提高单位面积种薯的生产效率,微型薯大小应选用2~5 g,播种密度以7000株/667m2为宜。
3) A rank or class.
一种地位或等级
4) class
[英][klɑ:s] [美][klæs]
n.班级，年级;种类，等级，阶级;(一节)课
5) two-stage magnavolt
一种两级式旋转放大机
6) A Classification Image Watermarking
一种分级图像水印
补充资料：MS6001系列燃气轮机一级空心涡轮叶片
MS6001系列燃气轮机一级空心涡轮叶片
Ms6()()l系列燃气轮机一级空心涡轮叶片 中同科学院金属研究所供稿
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条