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【单选题】
下表是某研究小组在“研究宇宙空间条件对种子发芽率的影响”时，得到的实验结果。表中太空组(S)的材料都是选用在太空飞行了2返回地面的种子；地面组(G)的材料，选用的是地面条件下保存的种子。每组又分为加O 2 和不加O 2 两种情况。分析表中实验结果，所得出的结论，不正确的是 [ ]A.
比较S与G或S+O 2 与G+O 2 两组数据可知太空组发芽率比地面组的高
B.
比较油菜组与芦笋组两组数据可知太空组发芽率比地面组的高
C.
对于同一种生物来说，无论是太空组还是地面组有氧条件下的发芽率都较高
D.
在其他条件相同的情况下，宇宙空间条件对油菜种子发芽率影响较显著
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