Hypo-, Hyper-tetraploid 포도의 수체생육 및 과실특성
Growth and Fruit Characteristics of Hypo-, Hyper-tetraploid Grapes
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참고문헌
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초록
본 연구에서는 4배체에서 염색체가 가감된 hypo-, hypertetraploid 포도들의 수체생육과 과실의 특성을 검정함으로서, 이들의 특성을 이용한 대립계 무핵포도 품종 육성 가능성에대해서 검토하고자 하였다. Hypo-, hyper-tetraploid 포도들은 다른 이수체식물들에서 보고되었던 엽의 기형이나 수체생육의 불균일 현상 없이 4배체 포도인 ‘거봉’과 유사한 생육상을 보여 재배적으로 활용하는데 문제가 없는 것으로 나타났다. Hypo-teraploid 포도에서 만개기에 GA3 100 ppm 1회처리 시 완전 무핵과 과실을 형성하였고, 과립도 8.5∼10.5 g 사이로 대립성 과실을 형성하였다. 하지만, Hyper-teraploid 포도는 hypo-teraploid 포도들에 비해 큰 과립을 가진 포도를형성하였으나 낮은 무핵율을 나타나게 되는 것으로 조사되었다. 따라서 hypo-tetraploid 포도들의 특성을 이용하는 것은대립계 무핵포도를 육성하기 위한 유용한 방법이 될 수 있을것으로 판단된다.
Abstract
In this study, we investigated the fruit and vine characteristics of hypo- and hyper-tetraploid grapes from which a chromosome was added or deleted. The aim of this study was to evaluate the possibility of developing seedless grapes by utilizing the characteristics of hypo- and hyper-tetraploid grapes. Both the hypo- and hyper-tetraploid grapes showed stable vine growth characteristics unlike other aneuploid plants, which displayed abnormal leaf morphology and unstable vine growth patterns, indicating that hypo- and hyper-tetraploid grapes can be used for commercial purpose. The hypo-tetraploid grapes produced 100% seedless fruits, with large berries ranging from 8.5 to 10.5 g, when the grapes were applied with 100 ppm gibberillic acid during their full bloom period. Although the fruits of the hyper-tetraploid grape were larger than those of the hypo-tetraploid grapes, it produced a lower percentage of seedless fruits. We conclude that the characteristics of hypo-tetraploid grapes may be exploited to develop seedless grapes with large berries.
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