Abstract
This study was conducted to determine the inheritance to bacterial leaf blight in rice. Varieties used in the study were IR1544-349-2, IR1698-237-2, IR1529-680-3, IR28, IR29, RP663-337-7-8-4-1-1, RP291-20, 62-595 and Kele. The isolate of bacteial leaf blight used was 71-23, 76-1 of Xanthomonas oryzae. $F_1s$ were obtained from crosses between resistant and susceptible varieties. Field observation was made from the Parents, $F_1s$ and $F_2$ sagregating population. The result is summaryzed as fallow: 1) The resistance to the bacterial leaf blight (71-23) derived from cultivars IR1529-680-3, IR28, IR29, RP663-337-7-8-4-1-1, RP291-20 and 62-595 was controlled by a single dominant gene. 2) The resistance to the bacterial leaf blight (71-23) derived from cultivars IR1545-339-2, IR1544-340, IR1698-237-2 and Kele was controlled by a single recessive gene. 3) The resistance to the bacterial leaf blight (76-1) derived from cultivars IR1545-339-2, IR1544-340, IR 1698-237-2 was controlled by a single dominant gene. 4) Degree of resistance to the bacterial leaf blight and genetic type were different depending on isolates within the same resistant cultivar. 5) There was no relation between resistance to the bacterial leaf blight and heading days.
수도(水稻) 고병유전(枯病遺傳) 양식(樣式)과 백엽고병(白葉枯病) 저항성(抵抗性)과 출수기(出穗期)와의 관계(關係)를 구명(究明)하기 위(爲)하여 본병(本病)에 이병성(罹病性)인 TN1, IR 24를 모본(母本)으로 하고 저항성(抵抗性)인 IR 1545-339-2, IR 1544-340, IR 1698-237-2, 62-595, Kele를 부본(父本)으로 한 조합(組合)과 이병성(罹病性)인 Yushin, Milyang 23을 모본(母本)으로 하고 IR 1529-680-3, IR 28, IR 29, RP 663-337-7-8-4-1-1, RP 291-20을 부본(父本)으로 한 교배조합(交配組合)의 $F_1$과 $F_2$에 백엽고병균계(白葉枯病菌系) 71-23, 76-1을 접종(接種)하여 다음과 같은 결과(結果)를 얻었다. 1. IR 1529-680-3, IR 28, IR 29, RP 663-337-7-8-1-1, RP 291-20, 62-595가 71-23 균계(菌系)에 의(依)한 저항성(抵抗性)은 단순우성유전자(單純優性遺傳子)에 의(依)해 교배(交配)되었다. 2. IR 1545-339-2, IR 1544-340, IR 1698-237-2 Kele가 71-23 균계(菌系)에 의(依)한 저항성(抵抗性)은 단순(單純) 열성(劣性) 유전자(遺傳子)에 의(依)해 지배(支配)되었다. 3. IR 1545-339-2, IR 1544-340, IR 1698-237-2가 76-1 균계(菌系)에 의(依)한 저항성(抵抗性)은 단순우성유전자(單純優性遺傳子)에 의(依)해 지배(支配)되었다. 4. 동일(同一) 저항성(抵抗性) 품종(品種)도 사용(使用)하는 균계(菌系)에 따라 유전양식(遺傳樣式)과 저항성(抵抗性) 품종(品種)도 사용(使用)하는 균계(菌系)에 따라 유전양식(遺傳樣式)과 저항성(抵抗性) 정도(程度)에 차이(差異)가 있었다. 5. 백엽고병(白葉枯病) 저항성(抵抗性)과 출수기(出穗期)와의 사이에는 아무런 관련성(關聯性)도 없었다.