한국 재래 적미 수집 및 특성 검정 II. 수량구성요소, 간장 및 수장

Collection and Evaluation of Korean Red Rices II. Yield Component, Clum and Panicle Length

벼의 기원지 아닌 우리나라에서도 재배도와 형태적으로 유사한 적미가 준야성의 장태로 잔존하므로 전국에서 이들을 1,113계통 수집하여 유용 유전 자원으로서의 활용성을 탐색하고자 853계통에 대하여 수량구성요소, 간장 및 수장을 조사한 결과를 요약하면 다음과 같다. 1. 장ㆍ단립형 적미는 수수는 각각 평균 21.5, 11.8로서 장립형적미가 약 2배 많았다. 2. 장ㆍ단립형 적미의 이삭당영화수는 각각 평균 86.1, 108.7로서 단립형 적미가 많았다. 3. 장ㆍ단립형 적미의 천립중은 각각 20.1g, 20.2g 임실율은 80.4%, 79.4%로서 군간에는 유의차가 없었으며 재배도의 소립종과 비슷한 천립중을 나타내었다. 4. 장ㆍ단립형 적미의 간장은 평균 102.6%cm, 94.8%cm로서 장립형적미가 컸고 양군간에 고도의 유의차가 인정되었다. 5. 장ㆍ단립형 적미의 수장은 각각 평균 22.1cm, 21.3cm로서 양군간에 유의차가 없었다.

This experiment was carried out to evaluate Korean red rices as useful genetic resource. Semi-wild red rices were collected from farmer's field of the Korean peninsula from 1988 to 1991. The collected red rices were classified into two groups according to length /width ratio of paddy rice and ecological characters. One was long grain red rice and the other was short grain red rice. Those were evaluated in yield components, culm length and panicle length. Mean number of panicles per hill of collected long grain red rices was 21.5 and that of short grain was 11.8. Number of spikelets per panicile of the long and short grain red rices were 86.1 and 108.7, respectively. 1000 grains weight of long grain was 20.1g and that of short grain was 20.2g. Spikelet fertility of long and short grain were 80.4% and 79.4%, respectively. Culm length of long grain was 103.6cm and that of short grain was 94.8cm. Panicle length of long and short grain were 22.1cm and 21.3cm, respectively. Number of panicles per hill, number of spikelets per panicle and culm length were significantly different between the two groups, however no differences, in panicle, length and seed fertility were found between the two groups.