논문 상세보기
pp.496-501
저장조건을 달리한 딸기 화분을 FCR Test와 결실률을 바탕으로 하여 화분 활력을 조사하고 암술 주두 활력을 인공수분을 통하여 구명함으로서 딸기 교배 육종시 효율성을 높이고자 하였다. '설향'을 대상으로 화분 활력을 조사하였으며 암술 주두의 수정 능력은 '매향' 등 4품종을 공시하고 화분친은 '설향'을 사용하였다. 딸기 화분은 상대습도 33%이하의 건조한 조건에서는 처리 온도(18℃ 수식 이미지 및 22℃ 수식 이미
In order to promote the efficiency of strawberry breeding programs, pollen viability of strawberry, 'Seolhyang' was investigated using the fluorochromatic reaction test and seed set under controlled environment. Pistil receptivity was also assessed by hand pollination. Four varieties including 'Maehyang' were used for the test of pistil receptivity with 'Seolhyang' as a pollen parent. Pollen viability remained high for several days under dry conditions as below 33% relative humidity while the greatest loss of viability occurred at 76% relative humidity. The viability was rapidly decreased at high humidity and almost all grains were unviable in 7 days after storage. Pollen viability does not appear to be drastically reduced if the relative humidity is low. Therefore, humidity is more important factor than temperature for the pollen viability in Fragaria×ananassa. The rate of seed set by hand pollination lasted higher than the average of 77.2% from 2 to 8 days after emasculation when the daily average temperature was around 15℃ in plastic house. It began to decline gradually from 10 days and had decreased dramatically after 12 days except several cultivars. Based on the daily mean accumulated temperature, it is recommended to have an artificial pollination between the range of 45~140℃ after the emasculation to increase the rate of seed set in strawberry.
