頁籤選單縮合
題名 | 甜瓜(Cucumis melo L.)收集系外表型變異度之探討及白粉病抗感性之檢測=Morphological Diversity and Resistance to Powdery Mildew in Melon (Cucumis melo L.) Accessions |
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作者姓名(中文) | 林思妤; 黃晉興; 王毓華; | 書刊名 | 臺灣農業研究 |
卷期 | 69:2 2020.06[民109.06] |
頁次 | 頁169-183 |
分類號 | 435.261 |
關鍵詞 | 甜瓜; 外表型變異度; 白粉病; 種原; Melon; Morphological diversity; Powdery mildew; Germplasm; |
語文 | 中文(Chinese) |
中文摘要 | 隨著甜瓜消費市場不斷追求更高品質及多樣化果實,再加上急遽環境變化帶來的挑戰,具抗病性、高品質、多樣化外觀的甜瓜新品種之需求逐漸增加。遺傳變異為育種之基礎,種原盤點、變異度探討及抗病性資訊之開發有其必要性。本試驗收集102個來自世界各國之甜瓜收集系,並於春作及秋作進行32個園藝性狀調查,結果顯示供試品系共涵蓋分類學上10個植物分群(botanical groups);而經由主成分分析,兩個亞種Cucumis melo ssp. melo及Cucumis melo ssp. agrestis 可被清楚區分,而植物分群亦可。白粉病為甜瓜重要病害之一,因此本研究以葉圓片人工接種方式進行白粉病菌生理小種1(Podosphaera xanthii race 1)之檢測。兩年試驗結果顯示,30個品系具有一致抗性,抗性品系主要屬於reticulatus、momordica及acidulus植物分群。本研究於同一環境調查及評估大量甜瓜收集系特性,不但可節省育種前期性狀篩選時間及人力,調查結果亦可作為後續甜瓜育種之參考,而抗白粉病品系則可應用於甜瓜抗病育種中。 |
英文摘要 | As climate changes rapidly and the demands of diverse melon increase, melon market has urgent needs of commercial lines with stress-resistance, varied appearance and high-quality fruits. Because genetic diversity is the basis of melon breeding, comprehensive understanding of the melon germplasm and breeding line is essential. In this study, 102 melon accessions are collected and 32 horticultural traits are investigated in two seasons. According to the principle component analysis, two subspecies- Cucumis melo ssp. melo and ssp. agrestis, can be separated clearly, and major botanical groups can also be distinguished. Screening for resistance to powdery mildew pathogen (Podosphaera xanthii race 1) is also conducted in this study by leaf-disc inoculation. Results show that 30 accessions possess constant resistance and most of them belong to botanical group momordica, acidulus and reticulatus. With the horticultural traits and powdery mildew resistance of germplasm and breeding line, manpower and time required at initial stage of breeding can be significantly reduced. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。