논문 상세보기
구기자 4배체 계통의 화기특성 및 자가결실율 비교
Comparison of Floral Characteristics and Self-Fertilization of Boxthorn Tetraploid Lines (Lycium Chinense Mill.)
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/326771
Background : Tetraploid plants are bigger in the size of fruits, leaves, stems, and roots than diploid plants due to bigger cells attributed to chromosome multiplication. The advantage of tetraploid plants includes breakdown of self-incompatibility and increase of disease resistance. This study was carried out to gain tetraploid resources for breeding of new boxthorn varieties having pest resistance, higher yield, and self-compatibility. Methods and Results : Tetraploid lines for this study were C0148-10 and C0412-1 from Cheongyang-jaerae (CJ), M0148-94 and M0148-120 from Myongan (MA), B0148-43 and B0148-78 from Bulro (BL), D0148-62 and D0148-72 from Cheongdae (CD), and Y0148-2 and Y0148-24 from Youngha (YH). Flower width ranged 13.2～17.4mm. Flower, pollen and anther were bigger than the mother plants. Pollen germination rate of the tetraploid lines ranging 36.1～58.8% was lower than mother plants (46.5～67.6%). Self-fertilization rate in 4 varieties, MA, BL, CD and YH was low as 1.3%, 4.0%, 1.4% and 4.7% respectively indicating that mother plants are self-incompatible. Self-fertilization rate in tetraploid lines was higher as 58.1～87.5% and B0148-43, M0148-120, and D0148-72 showed the highest self-fertilization rate over 80%. Conclusion : Tetraploid lines showed higer self-fertilization rate than mother plants that they were expected as valuable resources for new boxthorn variety having self-compatibility.
