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- 蔗芒高貴化後裔形態與解剖之研究(1):芒原種分蘗力、宿根力、適應性和抗病性等特性之傳遞
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題名 | 蔗芒高貴化後裔形態與解剖之研究(1):芒原種分蘗力、宿根力、適應性和抗病性等特性之傳遞 |
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作者 | 陳燿煌; 陳成; 羅傳成; | 書刊名 | 中華農學會報 |
卷期 | 164 1993.12[民82.12] |
頁次 | 頁31-45 |
分類號 | 434.715 |
關鍵詞 | 芒; 甘蔗; 蔗芒雜種; 高貴化; 分蘗力; 宿根力; 適應性; 露菌病; 黑穗病; Miscanthus; Saccharum; Nobilized progenies; Nobilization; Tillering; Ratooning; Adaptation; Downy mildew; Culmicolus smut; |
語文 | 中文(Chinese) |
中文摘要 | 以芒原種、栽培甘蔗親本及其高貴化各世代後裔為材料,檢討蔗芒高貴化過程中形態與解剖的變化。就芒之可利用特性而言,本研究證實,芒原種確實具有旺盛的分蘗特性,優越的宿根能力,良好的環境適應性和對露菌病和黑穗病的極強抗病性。這些特性中,黑穗病抗性完全沒有傳遞給高貴化後裔的跡象,適應性和露菌病的抗性可遺傳至BC₁或BC₂世代,分蘗力和宿根力則可進一步傳遞到BC₃或BC₄世代的部份後裔。 |
英文摘要 | Using Miscanthus spp., Saccharum parents and nobilized progenies as materials, we studied the variation of traits in morphology and anatomy during nobilization. The results showed that Miscanthus spp. actually had profuse number of tillers, strong rationing ability, superior adaptation to different environments and highly resistance to downy mildew (Peronosclerospora sacchari) and culmicolus smut (Ustilago scitaminea). Among these useful traits of Miscanthus spp., reaction in F₁-BC₄ hybrids to colmicolus smut was strongly affected by the Saccharum parents. It seemed that the degree of resistance to downy mildew and adaptation to different environments in F₁, BC₁ and BC₂ hybrids resembled those in Miscanthus spp., while in BC₃ and BC₄, the performance of these two traits was very close to saccharum parents. Nobilized progenies of F₁, BC₁, BC₂, BC₃, and BC₄ generation had much more number of tillers and stronger ability of rationing than their saccharum parents, although the number of tillers and the ability of rationing decreased gradually with the advance in nobilization generations. |
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