00227279

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クリ ノ リョクシダイツギ ニヨル イクビョウ キカン ノ タンシュク

Shortening of Nursery Period by a Novel Method of Grafting on Green Wood Stock of Chestnut

Japanese (日本語)

神戸大学農学部研究報告

15(2)

241-246

神戸大学農学部

1983-01-30

2006-09-15

本文ファイルは、国立情報学研究所CiNiiより提供されたものです。

In an attempt to shorten the nursery period of stocks, the experiment of grafting the freeze-stored dormant twigs on rootstocks in current year's growth were carried out. One-year-old twigs of Japanese chestnut cv. 'Gin-yose' were collected in mid February. After had been moistened with water, the twigs were enclosed in vinyl film and stored in freezer at -2 to -3℃ till the time of grafting. In these twigs, no injury were observed for at least six month. The stored twig was grafted on current year rootstock by cleft grafting method. After grafting, the graft union was tied with polyethylene tape of 0.02mm in thick and 5 to 8mm in width, then a small amount of vaseline was placed on the cut surface of the scion to prevent drying. The average rate of succesful graft union was 94 percent and no significant differences were observed between treatment times, between late April and late August. More vigorous shoot developed when scions were grafted on stocks from large seeds than on stocks from small seeds. There were no consistent relations between the percentage of union and the grafted position on the rootstock. But the largest amount of shoot growth was obtained from the scion grafted on the stock at 15 to 20cm in height. Size of nursery stock from the current year stock was less than that from the previous year stock. Howerer, it should be possible to obtain practically promising stocks within one year by proper cultural management.

紀要論文