needle number是什么意思

用法例句

As to the drought-resistant of SM8928, a comparisona of a new variety of wheat with XY22 is made in pigment content,Stoma number and external feature.

针对新品种小麦-商麦8928的抗旱性,通过其色素含量、气孔数目及外部形态与抗旱性较强的小偃22对比,结果表明:商麦8928的抗旱性与以上几项指标密切相关,其抗旱性极强,适合在坡塬、旱坪地种植。