作物の生長点 (Stem Tips) 培養について

抄録

Since 1952, in our raboratory, culturing of the stem tips of some cultivated plants has been carried out so as to clear up physiological mechanism of their flower bud initiation and recently the author succeeded in flowering of rice and wheat plants. The plants used in this experiment were as follows; Glycine max Mer., Phaseolus vulgaris L., Helianthus tuberosus L., Ipomoea Batatas Lam., Xanthium Stramarium L., Helianthus annuus L., Rubus hirstus Thunb., Solanum tuberosum L., Lycoperiscum esculentum Mill., Dioscorea japonica Thunb., Cucurbita pepo L., Cosmos bipinnutus Cav., Callistephus chinensis Ness., Hydrangea Hortensis DC., Zea Mays L., Asparagus officinalis L., Oryza sativa L., Triticum vulgare Vill., Purunus yedoensis Matsum., Rhododendron serhyllifolium Miq., Morus alba L., Purunus serotina Rehd. The stem tips were cut from seedlings or plants under sterile condition and transplanted to the tubes which contained the following medium; The composition of mineral salts in the nutrient solution was essentially the same as that used by White and Bonner. The stem tips of Asparagus off icinalis L., Cosmos bipinnutus Cav., Rubus hirstus Thunb. and Glycine max Mer. developed during a period from one to five months without flower bud initiation. Eapecially the stem tips of rice and wheat plants developed and produced plantlets which were consisted of stems, leaves and adventitious roots. At about 80 days after the first transplanting, the plantlets of them showed the heading and bloomed without fruiting.