Effect of virus infection on te yield and quality of sweet potatoes
Other Title
毒素病對甘藷產量及品質之影響
Journal
植物保護學會會刊
Journal Volume
23
Journal Issue
3
Pages
137-141
ISBN
0577-750X
Date Issued
1981-09
Date
1981-06
Author(s)
Mei-lie Chung
Chia-hsin Liao
Liang Li
鐘美麗
廖嘉信
李良
Abstract
On the basis of fleshy roots, field-collected, virus-infected plants the sweet potato cultivars Tainung 63 and Okinawa 100 yielded 34.2% and 55.9% less in a nethouse experiment than the healthy control plants derived from shoot tip culture, respectively. Virus-infected plants gave yield reduction of 24.5%, 30.5%, 31.8% and 35.6% for cultivars Tainung 57, Okinawa 100, Hung-hsin-wei and Tainung 63 in the field test, respectively. The dry matter Content, crude protein content and sugar refractometer reading of virusinfected plaits were significantly higher than the healthy control under field conditidns but there were no such differences in the nethouse test for crude protein content and sugar refractometer. No internal corking of fleshy roots was detected in the virus-infected materials used in this study. On the basis of stem and leaf, the virus-Infected plants gave a significantly lower, yield than the healthy under the nethouse condition and the leaf size was also reduced. But in the field test, the yield showed no difference. The dry matter content was increased and crude protein content decreased significantly in infected plants.
熱處理配合莖頂組織培養所得到的無病毒甘藷台農57號，沖繩100號，紅心尾及台農63號與田間複合感惑染甘藷病毒之病株，在田間或防虫網室內分別進行農藝性狀比較結果顯示：田間試驗，上述四品種自然感染病毒者，塊根產量分別降低24.5%，30.5%,31.8%和35.6%。網室試驗，台農63號及沖繩100號感染病毒之植株塊根產量比健株分別降低34.2%及55.9%。乾物率及曲折計示度均以病株為高。田間試驗結果，病株粗蛋白質含量雖顯著提高，但網室試臉結果差異不顯著。病毒對莖葉產量之影響，在田間試驗為不顯著，但網室內，病株較低，達顯著標準。
Subjects
virus
quality
yield loss
病毒
品質
產量損失
Publisher
植病保護學會
Type
journal article
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