オオバナオケラAtractylodes ovataの栽培に関する研究(第3報) : 雑種形成と外部形態の変化について

概要

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Atractylodes plants are well known for the easy interfertility. When A. ovata is cultivated in the field, it easily hybridizes with other Atractylodes plants. In order to find an efficient way of preventing hybridization between A. ovata and other Atractylodes plants, we studied their flowering time and the distance needed for possible pollenation between flowering A. ovata and other Atractylodes plants. We also studied the morphological characteristics of hybrids produced by artificial crossing. The results of the investigations showed that A. ovata produced hybrids by pollen contamination with A. japonica and A. lancea, and that the morphological characteristics of the head flowers, involucre, outer involucral bract, innermost involucral bract and floret of the hybrids were all intermediate of those of their parent plants. Thus the hybrids and their parent plants could be distinguished from each other. Knowledge of the morphological characteristics of the hybrids and their parent plants may be very useful for prevention of spreading of the hybridized Atractylodes plants.
日本生薬学会の論文
1995-12-20