甜瓜抗病育種

Abstract

甜瓜翠芳、天香、豐盛二號黄甜瓜抗胡瓜嵌紋病毒（CMV)，品系B-63-3、P1180280、P1414723及翠香抗西瓜嵌紋病毒(WMV-1)，但對矮南瓜黄花嵌紋病毒(ZYMV)則尚未有極抗之種原，抗病毒篩選，除以傅統方法外需配合應用酵素結合抗體(ELISA)測試，提高選拔效率。Ananas 、西施、西施×天香等為抗本省白粉病的自交系。雌雄異花同株特性已轉入新玉、黄金甜瓜等10個株系，且經回交選拔之恢復其原有園藝性狀。 Results from virus resistance screening work showed that melon cvs. Delicate, Sky Rocket and Feng-Sheng No. 2 were resistant to cucumber mosaic virus (CMV), line B-63-3, PI 180280, PI 414723 and cv. Delicate were resistant to watermelon mosaic virus (WMV-1; now renamed as papaya ringspot virus-watermelon strain PRV-W); but no reliable resistant source to ZYMV was obtained It is suggested to apply ELISA test in breeding work to enhance the selection efficiency. Ananas, Hsi-Shih and Hsi-Shih x Sky Rocket were inbreds with resistance to powdery mildew. Monoecious trait was incorporated to Jade, Hwang-Jin etc. 10 lines by backcross breeding to recover horticul- tural traits of recurrent lines.