農業研究本部

ハイブッシュブルーベリー休眠枝の組織からみた挿木発根性に関する研究

赤羽 紀雄

北海道立農試集報.27,37-41 (1973)

 It is known that the rooting percentage of cuttings in dormant highbush blueberry stems can’t rise to 100% such as that of grape vines.  Even if the cutting conditions were the best、rooting percentage couldn’t quite reach 100%.  In order to find this reason from tissues of the stem、those of the dorma -nt stem were observed by a microscopic examination.  It was found that a collenchymatous tissue existing in cortex interfered with the emergence and eIongation of a root origin formed in pith-rays.  Therefore it is necessary to crash through the hard tissue walls by the vi tality of root origin elongation.  This diffculty seems to be a fatal characteristic for rooting in dormant highbush blueberry stems.


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