REVALUATION OF FORCING ABILITY,CUT-FLOWER QUALITY AND PETAL COLORATION OF TREE PEONY BRED AND SELECTED IN SHIMANE PREFECTURE.

岛根县选育牡丹的强迫能力、切花品质和花瓣成色评价。

• 批准号: 08660030
• 负责人: AOKI Noriaki
• 金额: $ 1.47万
• 依托单位: SHIMANE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08660030/
• 关键词: Tree Peony; Forcing ability; Pre-chilling; Flowering percentage; Cut-flower quality; Petal coloration; Anthocyanin; Pigmentation; 島根県; 大島根育成品種; ハンターL,a,b

1) Petal coloration and pigment constitution in 38 tree peony cultivars (cvs.) from Daikon Island in Shimane Pref.were observed.Hues of flower color ranged from red through reddish purple to purple in most cvs. Chromas and value ranged from dull to deep or dark in red-flowered cvs., very pale to dull in pink-flowered cvs.and deep to dark in purple-flowered cvs.As regards pigmentation, both 3,5-diglucoside (3G5G) and 3-glucoside (3G) of pelargonidin (Pg) were dominant in almost all of the red-flowered cvs. Pink-flowered cvs.mainly contained the 3G5G of Pg or peonidin (Pn) but the amounts of anthocyanins were low. In purple-flowered cvs., Pn3G5G was dominant but some deep-colored cvs.had a high Cy3G5G content. Futhermore, as the petal color became bluer, the Pg3G and Pg3G5G contents increased.Based on the pigmentation in tree peony cvs.from Daikon Island, Pg3G-rich 'Hohki', 'Shin Shima no Kagayaki' and 'Kohki Jishi' are recommended as useful parental cvs.to obtain more vivid red colors, and 'Hohrei' with a high Pn3G5G contant may be used as a parent to obtain bluer colors in future breeding.2) The cultivars (30 cvs.) with desirable colors were pre-chilled (12ﾟC and 15ﾟC) and forced for December shipping.Basis on the effects of pre-chilling on the flowering of tree peony for December shipping it is assumed that the cvs.used in this trial are divided into 3 groups ; flowering percentages was (1) improved, (2) lowered, and (3) no or small change.Of the cvs.forced, 'Kohki Jishi' and 'Hakka Den' pre-chilled at 12ﾟC,'Yatsuka Jishi', 'Shima no Fuji', 'Otome' and 'Shima Daijin' pre-chilled at 15ﾟC,'Shima Musume' pre-chilled at 12 or 15ﾟC and 'Shima no Kagayaki' are recommended for December Shipping.

1)对岛根县大根岛的38个牡丹品种的花瓣着色和色素构成进行了观察。大多数品种的花色范围为红色、红紫色到紫色。红花品种的色度和明度从暗到深或暗，粉红花品种的颜色从浅到暗，紫花品种的深到暗。就色素沉着而言，天竺葵素 (Pg) 的 3,5-二葡萄糖苷 (3G5G) 和 3-葡萄糖苷 (3G) 在几乎所有红花品种中均占主导地位。粉花品种主要含有Pg或芍药苷(Pn)的3G5G，但花青素含量较低。在紫花品种中，Pn3G5G 占主导地位，但一些深色品种的 Cy3G5G 含量较高。此外，随着花瓣颜色变蓝，Pg3G 和 Pg3G5G 含量增加。基于大根岛牡丹品种的色素沉着，推荐富含 Pg3G 的“Hohki”、“Shin Shima no Kagayaki”和“Kohki Jishi”作为有用的亲本品种，以获得更鲜艳的红色，而“Hohrei”则推荐为有用的亲本品种。 Pn3G5G 含量可作为亲本，在以后的育种中获得更蓝的颜色。2) 将具有理想颜色的品种（30 个品种）预冷（12°C 和 15°C）并强制 12 月运输。根据预冷对 12 月运输牡丹开花的影响，假设本试验中使用的品种分为 3 组；开花率分别为 (1) 提高、(2) 降低、(3) 无变化或变化较小。在强制品种中，预冷温度为 12°C 的“Kohki Jishi”和“Hakka Den”，预冷温度为 15°C 的“Yatsuka Jishi”、“Shima no Fuji”、“Otome”和“Shima Daijin”，“Shima Musume”预冷 12 或 15°C 时，建议 12 月运送“Shima no Kagayaki”。