Chin J Plant Ecol ›› 2007, Vol. 31 ›› Issue (3): 528-535.DOI: 10.17521/cjpe.2007.0066
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MU Yong, ZHANG Yun-Hong, LOU An-Ru*()
Received:
2006-04-19
Accepted:
2006-07-16
Online:
2007-04-19
Published:
2007-05-30
Contact:
LOU An-Ru
MU Yong, ZHANG Yun-Hong, LOU An-Ru. A PRELIMINARY STUDY ON FLORAL SYNDROMA AND BREEDING SYSTEM OF THE RARE PLANT RHODIOLA DUMULOSA[J]. Chin J Plant Ecol, 2007, 31(3): 528-535.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2007.0066
观测地点 Observation plot | 海拔 Altitude(m) | 坡向 Aspeet | 坡度 Slope | 取样数目 Numbers of sampling |
---|---|---|---|---|
A | 2 303 | SW 30° | 30° | 20 |
B | 2 202 | SE 30° | 30° | 20 |
C | 2 106 | SW 15° | 45° | 20 |
D | 2 018 | NE 40° | 45° | 20 |
Table 1 The background of each observation plot
观测地点 Observation plot | 海拔 Altitude(m) | 坡向 Aspeet | 坡度 Slope | 取样数目 Numbers of sampling |
---|---|---|---|---|
A | 2 303 | SW 30° | 30° | 20 |
B | 2 202 | SE 30° | 30° | 20 |
C | 2 106 | SW 15° | 45° | 20 |
D | 2 018 | NE 40° | 45° | 20 |
观测项目 Items of observation | 观测结果 Results of observation | ||
---|---|---|---|
花瓣雄蕊枯萎顺序 Flower organs wilting order | 雄蕊→花瓣 Stamen→Petal | ||
花瓣发育状态 Petal development | 颜色变化 Color changes 大小变化 Size changes | 白色→黄色→红色 White→Yellow→Red 伸长→卷缩 Stretch→Rolling | |
雄蕊发育状态 Stamens development | 颜色变化 Color changes | 红色→黄色→黑色→褐色 Red→Yellow→Black→Brown | |
花丝长短 Filament length | 无明显变化 No obvious changes | ||
花药与柱头间距 Distance from anthers to stigma | 小→大 Short→Long | ||
花药开裂方式 Mode of anther dehiscence | 纵裂 Longitudinal dehiscence | ||
雌蕊发育状态 Pistil development | 柱头 Stigma | 颜色 Color | 绿色→黄色→红色 Green→Yellow→Red |
形状 Shape | 无明显变化 No obvious changes | ||
位置 Position | 直立→弯曲 Upright→Curve | ||
伸出时间 Time of stretching out | 内轮散粉末期 Post-inside-dehiscence | ||
子房 Ovary | 颜色 Color | 绿色→红色 Green→Red | |
发育状态 Development | 联合→开裂 Combine→Split | ||
气味 Odour | 无 No | ||
分泌物 Nectar | 有 Yes |
Table 2 The functional floral morphology of Rhodiola dumulosa
观测项目 Items of observation | 观测结果 Results of observation | ||
---|---|---|---|
花瓣雄蕊枯萎顺序 Flower organs wilting order | 雄蕊→花瓣 Stamen→Petal | ||
花瓣发育状态 Petal development | 颜色变化 Color changes 大小变化 Size changes | 白色→黄色→红色 White→Yellow→Red 伸长→卷缩 Stretch→Rolling | |
雄蕊发育状态 Stamens development | 颜色变化 Color changes | 红色→黄色→黑色→褐色 Red→Yellow→Black→Brown | |
花丝长短 Filament length | 无明显变化 No obvious changes | ||
花药与柱头间距 Distance from anthers to stigma | 小→大 Short→Long | ||
花药开裂方式 Mode of anther dehiscence | 纵裂 Longitudinal dehiscence | ||
雌蕊发育状态 Pistil development | 柱头 Stigma | 颜色 Color | 绿色→黄色→红色 Green→Yellow→Red |
形状 Shape | 无明显变化 No obvious changes | ||
位置 Position | 直立→弯曲 Upright→Curve | ||
伸出时间 Time of stretching out | 内轮散粉末期 Post-inside-dehiscence | ||
子房 Ovary | 颜色 Color | 绿色→红色 Green→Red | |
发育状态 Development | 联合→开裂 Combine→Split | ||
气味 Odour | 无 No | ||
分泌物 Nectar | 有 Yes |
观测项目 Items of observation | 观测地点 Observation plot | |||
---|---|---|---|---|
A | B | C | D | |
25%植株开花 25% individuals flowering | 29/6 | 30/6 | 28/6 | 27/6 |
50%及以上植株开花 50% or more individuals flowering | 1/7 | 3/7 | 2/7 | 30/6 |
<25%植株尚在开花,其余谢花 Less than 25% individuals flowering, the rest already shed | 13/7 | 15/7 | 12/7 | 11/7 |
开花末期,仅10%植株开花 End of flowering, less than 10% individuals flowering | 15/7 | 17/7 | 14/7 | 13/7 |
Table 3 The flowering process of Rhodiola dumulosa observation plots (Date/Month)
观测项目 Items of observation | 观测地点 Observation plot | |||
---|---|---|---|---|
A | B | C | D | |
25%植株开花 25% individuals flowering | 29/6 | 30/6 | 28/6 | 27/6 |
50%及以上植株开花 50% or more individuals flowering | 1/7 | 3/7 | 2/7 | 30/6 |
<25%植株尚在开花,其余谢花 Less than 25% individuals flowering, the rest already shed | 13/7 | 15/7 | 12/7 | 11/7 |
开花末期,仅10%植株开花 End of flowering, less than 10% individuals flowering | 15/7 | 17/7 | 14/7 | 13/7 |
观测项目 Items of observation | 结果 Results |
---|---|
每花花粉数量 Pollen number per flower | 64 933.26±13 368.90 (p=0.002) |
每花胚珠数目 Ovule number per flower | 74.5±19.43 (p=0.005) |
花粉-胚珠比 Pollen-ovule ratio | 883.80±119.78 (p=0.001) |
繁育系统类型 Type of breeding system | 兼性异交 Facultative xenogamy |
Table 4 Pollen -ovule ratio of Rhodiola dumulosa
观测项目 Items of observation | 结果 Results |
---|---|
每花花粉数量 Pollen number per flower | 64 933.26±13 368.90 (p=0.002) |
每花胚珠数目 Ovule number per flower | 74.5±19.43 (p=0.005) |
花粉-胚珠比 Pollen-ovule ratio | 883.80±119.78 (p=0.001) |
繁育系统类型 Type of breeding system | 兼性异交 Facultative xenogamy |
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