Multicellular living organisms and unmodified parts thereof and – Plant – seedling – plant seed – or plant part – per se – Higher plant – seedling – plant seed – or plant part
Patent
1998-04-27
2000-04-04
Smith, Lynette R. F.
Multicellular living organisms and unmodified parts thereof and
Plant, seedling, plant seed, or plant part, per se
Higher plant, seedling, plant seed, or plant part
800298, 800260, Plt 316, A01H 500
Patent
active
060463910
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a method of flower breeding techniques, particularly the present invention relates to the parental combination method for breeding purple dotted peony.
PRIOR ART
The peony (Paeonia suffruticosa) is a deciduous bush. It has feather-like compound leaves with stalks, and its folioles are egg-shaped or elliptic. Its flowers are usually big with deep red, pink or white colors. Peony is a famous decorative plant, whereas medical preparations made from its bark can be used as antipyretic, and can invigorate the circulation of blood and recuperate menstruation. There are many varieties of peonies, the wild type and cultivars of purple dotted peony referred to herein as Xing-long-shan peony and primitive purple dotted peony varieties, respectively, have poor colors, humdrum appearance and fragrance, low yield of bark. Both decorative value and economic value are low. Shan-dong peony and He-nan peony also have poor colors, light fragrance and are susceptible to virus and pests. Moreover, they have some other disadvantages such as weak hardiness and drooping flowers.
Although hybridization between varieties of the peony for breeding new varieties having superior characters is well known in the art, however, selection of parental combinations having potential use in breeding is very difficult.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide parental combinations useful in breeding purple dotted peonies.
The present inventor has investigated the main features and the distribution of Gan-su purple dotted peony (primitive purple dotted peony), and its status in domestic cultivation in China. Upon extensive investigation, he established the classification system of Chinese cultivated peonies, and concluded the regular pattern of feature inheritance from parent to filial generations, which is used as the guidance for carrying out cross breeding. He found that when the new purple dotted peony (F1) obtained through hybridization among the primitive purple dotted peony and between the wild type peony and the primitive purple dotted peony, which has black, brown and purple dots, thick fragrance, erect flowers with multi-colored petals, were hybridized with the Zhong-yuan peony, which has no dots, light fragrance, drooping flowers with pure and poor colors, a filial generation with more excellent characters were obtained, which has much varied dots, thick fragrance, erect flowers with rich and more varied colors. In other word, the superior characters of the new purple dotted peony is much enhanced in the filial generation of the hybridization of the new purple dotted peony and the Zhong-yuan peony. As the result of much research work within twenty years, 530 excellent peony varieties were obtained through parent selection, hybridization and screening. These new varieties include Bei-guo-feng-guang, Jin-cheng-wan-xia, Xing-long-shao-nv, Long-yuan-zhuang-shi, Bai-shang-hei-shui, Tian-shan-ri-chu, Yue-zhao-kun-lun, Qi-lian-cai-hong, Hong-xian-nv, He-ping-lan, Mai-ji-yan-yun, Lan-shan-jin-guang and He-ping-er-qiao, which have been widely planted in the areas of northeastern and northwestern part of China. They exhibit strong hardiness and great adaptability for various conditions.
Accordingly, the present invention provide a parental combination method for breeding purple dotted peonies, including firstly carrying out the hybridization among the primitive purple dotted peony and between the wild type peony and the primitive purple dotted peony, and then the resulting filial generation was hybridized with the Zhong-yuan peony.
The breeding of purple dotted peony in present invention is performed by means of single cross, reciprocal cross, three way cross and compound cross between carefully selected varieties and then directional selection in F1 or F2.
Specifically, said parental combinations include the following combinations: dotted peonies such as Zhu-sha-hong, Qing-xin-bai, Da-ban-bai, Mei-gui-hong and Mei-ren-mian was carried out. Most of t
REFERENCES:
Sakata et al. Petal coloration and pigmentation of tree peony bred and selected in Daikon Island (Shimane Prefecture). Journal of the Japanese Society for Horticultural Science, vol. 64, pp. 351-357, 1995.
Zhang Yuexian. The breeding of Heze peony's new varieties by selection. Acta Horticultural, No. 404, pp. 171-174, 1995.
Kimball Melissa L.
Smith Lynette R. F.
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