梅花个体内花柱长度的变异及其对繁殖成功的影响

王晓月,朱鑫鑫,杨娟,刘云静,汤晓辛

Variation in style length and the effect on reproductive success in Chinese plums (Armeniaca mume)

Wang Xiaoyue,Zhu Xinxin,Yang Juan,Liu Yunjing,Tang Xiaoxin

表1 长柱型、短柱型、雄花型梅花花部特征(平均值 ± 标准误)的比较(广义线性模型)。表中数字加粗表示长柱型的指标显著大于短柱型和雄花型相应的指标。花部特征样本量为30, 花期样本量为20。不同小写字母表明不同花型对应的花部特征有显著性差异。

Table 1 Comparisons of floral traits (mean ± SE) among long-style, short-style and male-flower types within individuals of Armeniaca mume using generalized linear model (GLM). Floral traits of long-style type significantly larger than those of short-style and male-flower types are in bold. The sample size of floral characters and floral phase was 30 and 20, respectively. Different letters indicate significant differences in flower traits among three types in the same row.

花部特征 Flower character	长柱型 Long-style type	短柱型 Short-style type	雄花型 Male-flower type	Wald χ²	df	P
花萼长 Spur length (mm)	5.30 ± 0.09^a	5.38 ± 0.08^a	4.99 ± 0.10^b	8.970	2	0.011
花萼宽 Spur width (mm)	3.62 ± 0.05^a	3.78 ± 0.07^a	3.76 ± 0.12^a	2.755	2	0.252
花冠直径 Corolla diameter (mm)	24.42 ± 0.44^a	23.43 ± 0.23^b	21.64 ± 0.41^c	27.656	2	< 0.001
花瓣长 Petal length (mm)	10.44 ± 0.18^a	10.03 ± 0.16^a	9.17 ± 0.18^b	22.160	2	< 0.001
花瓣宽 Petal width (mm)	9.70 ± 0.20^a	9.31 ± 0.16^a	8.05 ± 0.25^b	32.449	2	< 0.001
雄蕊数 Stamen Number	53.71 ± 0.71^b	53.56 ± 0.79^b	56.93 ± 1.10^a	8.460	2	0.015
雄蕊长 Stamen length (mm)	9.25 ± 0.21^b	10.39 ± 0.18^a	8.82 ± 0.22^b	33.193	2	< 0.001
花药长 Anther length (mm)	1.01 ± 0.02^a	1.02 ± 0.01^a	1.01 ± 0.02^a	0.500	2	0.779
雌蕊长 Pistil length (mm)	14.46 ± 0.20^a	12.34 ± 0.21^b	3.42 ± 0.16^c	8.460	2	0.015
花柱长 Style length (mm)	12.20 ± 0.19^a	10.18 ± 0.18^b	/	58.394	1	< 0.001
花粉数 Pollen Number	37,522.22 ± 1,305.85^a	30,386.67 ± 1,412.62^b	32,000.00 ± 2,003.29^b	15.133	2	0.001
花粉体积 Pollen volume (mm³)	1,213.07 ± 28.87^a	1,102.47 ± 31.08^b	1,067.13 ± 49.45^b	10.226	2	0.006
胚珠数 Ovule Number	2.00 ± 0.00^a	2.00 ± 0.00^a	0.90 ± 0.35^b	46.620	2	< 0.001
单花期 Flower longevity (days)	10.43 ± 0.24^a	9.29 ± 0.56^b	10.70 ± 0.30^a	6.620	2	0.037
雄花期 Male phase (days)	5.46 ± 0.35^a	5.23 ± 0.52^a	/	0.140	1	0.079
雌花期 Female phase (days)	4.96 ± 0.30^a	4.06 ± 0.30^b	/	4.670	1	0.031