島根農科大学研究報告

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島根農科大学研究報告 3
1955-05-30 発行

チューリップの分球に関する研究(1) : 分球力による品種分類

Studies on the Seperation of Tulips(1) : Classification of varieties depend on the propagative power
Kuraoka, Tadayuki
Yoshino, Shigeto
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Description
We have collected 86 varieties of cultivated tulips in Japan and classified them by the propagative power.
(1) According to the increase of bulb in number, we have decided them into 8 types as follows:
A-a-I (Fig. 1) A-a-II (Fig. 2) A-b-I (Fig. 3) A-b-II (Fig. 4) A-b-III (Fig. 5) B-a-I (Fig. 6) B-b-I (Fig. 7) B-b-III (Fig. 8)
(2) According to the development of main bud in size, 5 types have been decided as follows:-
I (Size over 14cm), II (Size 13-14cm), III (Size 12-13cm), IIII (Size 10-12cm), V (Size under 10cm).