Effect of Cutting Method of Mother Bulb on Bulblet Formation of Hippeastrum Yu Chu 1 Li-De Hu Hsin-Yen Chang Hui-Fang Chang Hui-Ju Yu Yu-Chen Pan 1.As

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1 孤挺花的母球切割方式對子球形成之影響朱玉 1 胡立德張心嚴張慧芳游輝儒潘鈺臻 1. 國立宜蘭技術學院園藝科副教授. 國立宜蘭技術學院園藝科學生摘要孤挺花的球根繁殖目前以鱗片繁殖為主, 該種繁殖方法由於形成的子球較小, 因此培育至具商品價值的開花球為止約需 -3 年, 本實驗利用不同的母球切割方法探討其對子球形成之影響, 與鱗片繁殖法相比較, 對母球進行割傷處理的挖空法或刻溝法可產生較大的子球另外本實驗也探討了切割後母球以不同溫度及介質處理對子球形成的影響, 其中溫度處理的影響並不顯著而介質中的炭化稻殼可產生較重且周徑較大的子球關鍵詞 : 孤挺花鱗片繁殖刻溝法挖空法子球形成

2 Effect of Cutting Method of Mother Bulb on Bulblet Formation of Hippeastrum Yu Chu 1 Li-De Hu Hsin-Yen Chang Hui-Fang Chang Hui-Ju Yu Yu-Chen Pan 1.Associate Professor, Department of Horticulture, National Ilan Institute of Technology.Student, Department of Horticulture, National Ilan Institute of Technology Abstract The scaling is the main propagation method of Hippeastrum now. However, the small bulblets formed require many years to produce flowering sized bulbs by scaling. In order to decrease the propagation period, this study was carried out to find a proper cutting method for bulblet formation. The bulblets formed by cross-cutting and scooping show bigger size than that of scaling. The mother bulbs cured at 0, 5, 30 for 7 or 14 days did not show any promotive effect. With the effect of medium on bulblet formation, the mother bulbs placed on rice-chaff charcoal medium show better bulblet formation than that place on sand, vermiculite or perlite. Key Word: Hippeastrum Scaling Cross-Cutting Scooping Bulblet Formation

3 Effect of Cutting Method of Mother Bulb on Bulblet Formation of Hippeastrum Yu Chu 1 Li-De Hu Hsin-Yen Chang Hui-Fang Chang Hui-Ju Yu Yu-Chen Pan 1.Associate Professor, Department of Horticulture, National Ilan Institute of Technology.Student, Department of Horticulture, National Ilan Institute of Technology Abstract The scaling is the main propagation method of Hippeastrum now. However, the small bulblets formed require many years to produce flowering sized bulbs by scaling. In order to decrease the propagation period, this study was carried out to find a proper cutting method for bulblet formation. The bulblets formed by cross-cutting and scooping show bigger size than that of scaling. The mother bulbs cured at 0, 5, 30 for 7 or 14 days did not show any promotive effect. With the effect of medium on bulblet formation, the mother bulbs placed on rice-chaff charcoal medium show better bulblet formation than that place on sand, vermiculite or perlite. Key Word: Hippeastrum Scaling Cross-Cutting Scooping Bulblet Formation

4 Table1 Effect of cutting method of mother bulb on bulblet formation Cutting method Cutting number of mother bulb cm g Total number of bulblets Number of bulblets per bulb The longest length leaf of bulblet per bulb Average weight of bulblet Average circle le of bulbl ± ±6.0.1± ± ±4. 7.5± ± ± ± ± ± ± ± 1 Table Effect of cutting method of mother bulb on bulblet size distribution Cutting Number of bulblets in different size method cm cm cm cm cm (45.5) 19(34.5) 11(0.0) (41.1) 1(37.5) 11(19.6) The data in the are percentages. Table3 Effect of temperature and duration of curing on bulblet formation Treatment of bulb g Number of Total Number of The longest length Average Averag Temperature Duration mother number bulblets leaf of bulblet weight of length bulb of bulblets per bulb per bulb bulblet bulblet

5 ±4. 33.±9.3 9.± ± ±.6 6.9± ± ± ± ± ± ± ±.7 3.6± ±7. 6.0± ±4.1.0± ±6. 5.4± ±.5 3.3± ± ± ± ± ± ± ± ± ± ± 0.9 Table4 Effect of temperature and duration of curing on bulblet size distribution Treatment of bulb Number of bulblets in different size 4.0cm cm Temperature Duration cm cm cm The data in the are percentages. Table5 Effect of media for planting on bulblet formation Media Number of mother bulb Total number of bulblets (cm g Number of bulblets per bulb The longest length Leaf of bulblet per bulb Average weight of bulblet Average circle le of bulbl

6 Perlite ± ± ±1.1 8 Vermiculite ±3. 6.± ± Sand ± ± ± ± ± ±4.8 3 Rice-chaff charcoal Table6 Effect of media for planting on bulblet size distribution Media Number of bulblets in different size 4.0cm cm cm cm cm Perlite Vermiculite Sand Rice-chaff charcoal The data in the are percentages. Fig.1 The cross-cutting of bulbs of Hippeastrum.

7 Fig. The effect of the media for planting on bulblet formation. The media from the left to right are rice-chaff sand vermiculite and perlite. Fig.3 The bulblets of Hippeastrum. The left bulblets are from cross-cutting and the rights are from scaling. Hippeastrum hybridum Hort ,3

8 4 Red Loin Red Loin Red Loin

9 cm 30.cm.1g 7.5g 8.4g 11.g.1-4.0cm cm 3.7 cm cm cm cm

10 cm 6.4cm cm 6.0cm cm Mori 6

11 cm 9 1. Okubo, H. 1993, Hippeastrum(Amaryllis),In: De Hertogh, A.A and M. LeNard,(eds) The physiology of Flower Bulbs, pp , Elsevier Publ. Amsterdam Hartmann, H. T. and D. E. Kester 1975, Plant Propagation Principles and Practices, pp ,prentice-hall,inc.,englewood Cliffs,New Jersey Sandler-ziv, D., A Cohen and A. Ion 1997, " A two-year production cycle of israeli-grown Hippeastrum bulbs from bulb chipping to christmas flowering ", Acta Hort.Vol.430,pp Mori,G., H. Hirai and H. Imanishi 1997, "Vegetative propagation Nerine of bulbs by cross-cutting", Acta Hort.Vol.430,pp

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