땅콩갈색무늬病에 抵抗性인 品種을 選拔하기 위하여 外國蒐集땅콩 208品種의 抵抗性을 1987年 全南 順天地方의 圃場狀態에서 檢定하였다. 供試된 208品種 中에서 전혀 罹病되지 않은 品種(R-X?+IN-25l) 1種이 選拔되었고, 20% 以下의 罹病葉率을 나타낸 品種은 17種, 21-40%능 85種, 41-60%는 8種, 그리고 81% 以上된 品種은 7種이었다. 이들 品種 中에서 땅콩 type의 罹病葉率에 따라 43品種을 選拔하여 抵抗性의 構成要素인 葉當病斑數, 病斑直徑, 胞子形成病斑率, 落葉率 등을 調査하였다. 抵抗性 構成要素는 品種에 따라 매우 多樣하였지만 罹病葉率이 낮으면서 葉當病斑數, 胞子形成病斑率, 落葉率 등이 낮은 品種은 Virginia type의 句容, Nc. Acc 393 品種. spanish type의 番地 24號, 琉球花生 品種, Valencia type의 Coriante 品種이었다. 이들 抵抗性 構成要素를 땅콩의 type別로 比較해 볼 境遇 罹病葉率과 落葉率은 Virginia. Spanish; Valencia type間에 次異가 없었다. 그러나 Spanish type은 다른 두 type에 比해 葉當病斑數는 더 많고, 病斑直徑은 더 작으며, 胞子形成病斑率이 더 낮았다. 한편 全體 品種으로 比較해 볼 境遇, 罹病葉率과 葉當病斑數, 胞子形成病斑率, 落葉率 등과는 有意한 표의 相關을 나타냈지만 罹病葉率과 病斑直徑은 相關이 認定되지 않았다.
Level of resistance of 208 varieties collected abroad to brown leaf spot caused by Cercospora arachidicola was evaluated in fields of Suncheon city, Chonnam province in 1987. Among 208 varieties tested, only one variety, R-X?+IN-251, was highly resistant, and number of varieties showing 1-20%, 21-40%, 41-60%, 61-80% and over 80% in percent diseased leaflet were 17, 85, 90, 8 and 7, respectively. Forty three out of 208 varieties, were chosen according to the diseased levels in each peanut type and evaluated in the fileds for the following components of resistance: number of lesion per leaf, lesion diameter, sporulating lesion, and percent defoliation. These components varied greatly among varieties tested. Kuyou and Nc Ace 393 varieties in Virginia type, Fanti 24 and Rrukyukasei varieties in Spanish type, and Coriante variety in Valencia type showed lower percent diseased leaflet, less number of lesion and sporulating lesion per leaf, and fewer percent defoliation. Among these components, percentage of diseased leaflets and defoliation did not differ among variaties of Verginia, spanish and Valeneia types. Varieties of spanish type, however, compared with those of virginia and valencia type were significantly higher for the number of lesion per leaf, and lower in lesion diameter and sporulating lesion. When pooled over the varieties, significant positive correlations were obtained between percent diseased leaflet, number of lesion and sporulating lesionn per leaf and percent defoliation, but no correlation was observed between percent diseased leaflet and lesion size.