Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Post-conditioning Periods and Seed Orientation Affects the Vigor of Cucurbit Seeds with Dry-heat Treatment

건열처리에 따른 박과채소종자의 활력 회복

  • Choi, Byung-Soon (Department of Horticultural Biotechnology, Kyung Hee University) ;
  • Lee, Jung-Myung (Department of Horticultural Biotechnology, Kyung Hee University) ;
  • Choi, Geun-Won (Department of Horticultural Biotechnology, Kyung Hee University)
  • 최병순 (경희대학교 원예생명공학과) ;
  • 이정명 (경희대학교 원예생명공학과) ;
  • 최근원 (경희대학교 원예생명공학과)
  • Received : 2013.04.29
  • Accepted : 2013.11.07
  • Published : 2014.02.28
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Abstract

We investigate the effect of post-conditioning periods and seed orientation on the vigor of cucurbit seeds with dry heat treatment (DHT). All the dry-heat treated seeds exhibited varying degree of seed vigor decreases. In general, pumpkin seeds showed less vigor decreases than the bottle gourd seeds. When the dry heat treated seeds were germinated after post-conditioning for 0, 30, and 120 days, the percentage of germination was enhanced by increasing the period of post-conditioning and the efficiency of post-conditioning differed by crop and cultivar. In both bottle gourd and pumpkin, the vigor of seeds placed in vertically upward and horizontal orientations was higher than that of the seeds placed in the vertically downward orientation. The results suggested that the vigor of dry-heat treated seeds could be improved by applying the proper post-conditioning and seed orientation.

본 연구에서는 종자전염병의 무독화를 위해 실시하는 건열처리에 의한 종자의 활력감소를 회복시키기 위한 방법을 개발하고자 하였다. 건열처리된 종자의 활력감소 정도는 작물과 품종에 따라 다양하게 나타났다. 일반적으로 호박 종자가 박 종자에 비하여 활력이 덜 감소하였다. 건열처리된 종자를 0, 30, 120일간 후처리하였을 때, 발아율은 건열처리 후처리 기간이 증가함에 따라 높아졌는데, 후처리 효율은 작물과 품종에 따라 상이하였다. 또한, 박과 호박 종자를 상향 또는 수평 파종 시 하향 파종보다 높은 종자활력과 묘소질을 보였다. 따라서 건열처리에 의한 종자활력의 감소는 적절한 후처리 뿐만 아니라 상향파종을 통해서도 효과적으로 회복시킬 수 있음을 확인하였다.

Keywords

References

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