行政院農業委員會台南區農業改良場  研究彙報第32號

洋香瓜抗蔓枯病自交系之育成

黃賢良

摘  要

黃賢良.1995.洋香瓜抗蔓枯病自交系之育成。台南區農業改良場研究彙報32:23~32。

本研究自民國八十年秋開始選用洋香瓜抗蔓枯病品種PI140471及Chilton與溫室洋香瓜Earl's Favourite-春、夏、秋系及哈密瓜黃皮系雜交,後代苗期本葉1∼2枚時接種蔓枯病Didymella bryoniae (Auersw.) Rehm菌絲塊於莖部,篩選健康株培養,並用譜系法及回交法留種,選擇優良自交系,迄八十三年春作已選拔至F6,其中02-B1-8-3-1、02-B1-B5-1-3、02-B1-B5-1-4、02-B1-B5-4-1、03-B5-8-1-1、05-B2-5-1-2、05-B2-5-1-4等七個品系抗蔓枯病純度已達72.2%∼97.9%,且果實性狀優良,可作為自交系利用。

關鍵詞:洋香瓜、蔓枯病、自交系。

接受日期:1995年4月18日。


Breeding of Muskmelon Inbred Lines Resistant of Gummy Stem Blight

Hwang, S. L.

Summary

Gummy stem blight resistant varieties of PI140471 and Chilton muskmelon were used to cross with Carl’s Favorite-spring, summer, autumn lines and Ha-mi yellow skin lines during autumn of 1991.  The seedlings of progenies were inoculated with mycelia lump of Didymella bryonize (Auersw.) Rehm on stem at 1~2 true leaves stage and the healthy plants without symptoms were saved.  The seeds of these progenies were further improved and selected by pedigree and back cross method.  Finally, 7 iinbred lines i.e. 02-B1-8-3-1, 02-B1-B5-1-3, 02-B1-B5-1-4, 02-B1-B5-4-1, 03-B5-8-1-1, 05-B2-5-1-2 and 05-B2-5-1-4 reached 72.2%~97.9% homozygosity with gummy stem blight resistance and good fruit characteristic in F6 generation in 1994.

Key words: muskmelon, gummy stem blight, inbred line.

Accepted for publication: April 18, 1995.



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