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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