|Title:||病毒對甘藷農藝性狀的影響||Other Titles:||Influence of Sweet Potato Viruses on the Performances of Some Agronomic Characteristics of Sweet Potatoes (I pomoea batatas (L.) Lam.)||Authors:||廖嘉信
|Issue Date:||4-Sep-1983||Publisher:||農業試驗所||Journal Volume:||32||Journal Issue:||3||Start page/Pages:||228-232||Source:||中華農業研究||Abstract:||
甘藷臺農 63 號及臺農57號田間自然複合感染病毒株（Vc 病株），其塊根產量分別比健株極顯著減產 30.8%及 33%，莖葉產量亦分別減產 24.3%及 6.7%，但 SPV-A 及 SPV-N 病毒單獨感染或二者複合感染株，其塊根及莖葉產量等農藝性狀與健株比較則無顯著的差異，同時 Vc病株及 SPV-A 與 SPV-N 單獨或複合感染之病株，對莖葉及塊根主成分含量亦無顯著的影響，顯示本省甘藷自然感染病毒之病株中，尚有嚴重影響產量的重要因子存在，有待進一步的研究。
Healthy and virus-free sweet potato seedlings of two varieties, Tainung No. 57 and Tainung No. 63, were obtained through the combination of heat treatment (38℃) and shoot-tip culture techniques. Sweet potato virus A (SPV-A), sweet potato virus N ( SPV-N) and SPV-A+SPV-N were inoculated onto healthy and virus-free seedlings to determine their possible detrimental effects on the yield and some agronomic characteristics. Plants carrying a virus complex (Vc) obtained directly from the field were also used for comparison. Results indicated that sweet potato plants subjected to various types of virus inoculations showed no difference in crude protein, soluble sugar and starch contents in the root and top stem on a dry weight basis. Tainung No. 57 and Tainung No. 63 carrying a virus complex (Vc) yielded 33% and 31%, respectively, less fleshy root than the healthy plants. The corresponding values of the yield reducation of stem plus leaf were 7% and 24% for the two varieties. However, yields of both root tuber and stem plus leaf were not affected by the infection of SPV-A, SPV-N or SPVA+SPV-N. It suggested that some systematic disease agent (s) other than SPV-A and SPV-N which have not yet determined might exist.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.