【摘要】 通过对大连红菊芋沙漠治理有限公司在科尔沁沙地和松嫩沙地的红菊芋基地调查发现 ,菊芋的地下部分由两部分组成 ,一是常规的营养根 ,二是地下茎 ,地下茎独立生长 ,是形成菊芋块茎的重要组织 ;菊芋块茎不是顶端膨大形成 ,而是在地下茎的中部形成 ,而且 1根地下茎在 5 6～80d的生长期内可形成 1～ 3处膨起。此调查结果与目前有关菊芋的文献记载差异较大 ,这一生物学特性对菊芋的集约化经营具有特殊的意义更多还原

【Abstract】 Through investigating where Redjuyu was planted by Dalian Redjuyu Desert Control Co. Ltd. We found that there are two parts under ground, one is nutritional root, the other is rhizome. The rhizome grows all alone and it is an important tuber of Helianthus tuberosus L. Expanding part does not happen on the top of the tuber, but in the middle of the rhizome. One piece of rhizome has 1 to 3 expanding parts during its 56 to 80d growing time. The investigated result above had lots of differences between the documents to Helianthus tuberosus L. up to date. This kind of biological character has special significance for intensive managing of Helianthus tuberosus L.更多还原