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Abstract ▼ AI-Helper

The most important subject in cultivation of A. gigas NAKAI would be how to decrease the bolting rate. Belcause the decrease and poor of the yields and quality is imevitable in such field where the bolting rate is high. This study was carried out to investigate the time of flower-bud differentiation...

The most important subject in cultivation of A. gigas NAKAI would be how to decrease the bolting rate. Belcause the decrease and poor of the yields and quality is imevitable in such field where the bolting rate is high. This study was carried out to investigate the time of flower-bud differentiation as a part of improvements of cultivation method. Shoot apex was fixed in Farmer's solution(ETOH 3:Acetic acid 1), thin paraffin ribbon was made, and the tissue was stained by Safranin solution. Differentiation time of flower-bud in A. gigas differed greatly from individuals by the seedling size, generally begun from middle of May to late of June, it was time that two leaves spread. In this results, Photoperiocid types of A. gigas NAKAI were regarded as LI type or LS type of dull-photosensitivity.