7期 李 鹤等:砧用南瓜种质资源形态学性状与SSR标记分析 1383 (63.83%)的叶片为掌状五角形。子叶色为多样性指数最低(0.18)的质量性状,95.74%种质的子 叶色为深绿色。
表2 砧用南瓜种质资源质量性状分布及多样性
Table 2 Frequency distribution and diversity index of rootstock-used pumpkin germplasms on qualitative characters
Trait
种皮色
Seed color 赋值标准 频率/% Frequency 性状 Criteria 0 1 2 3 4 5 7 8 9 10 11 12 H’ 1白White;3黄白Yellowish- 10.64 85.11 4.26 0.51
white;7黑Black
85.11 14.89 0.42 种皮光泽 0无Mat;
Seed luster 1有Glossy
14.8985.11 0.42 种缘表面特征 1平滑Smooth;
Seed surface 2粗糙Rough
种子周缘 0无隆起Flat;1隆起Ridgy; 10.64 85.114.26 0.51
Seed margin 2狭边Narrow
2.1310.6487.23 0.44 种子周缘色 1浅Light;2与种皮相近
Seed margin Similar to seed coat;
color 3深Dark
29.7955.3214.89 0.97 种喙特征 1圆钝,不倾斜Obtuse;
Seed beak 2平直,不倾斜Flat;
characters 3平直,倾斜Flat & tilt
4.26 95.74 0.18 子叶色 2绿Green;
Cotyledon color 3深绿Dark green
12.7772.3410.64 0.74 花冠色 1浅黄Light Yellow;
Corolla color 2黄Yellow;
3橙黄Orange-yellow
花筒形状 1钟形Bell-shaped;2圆筒形 87.236.382.13 0.38
Floral tube shape Cylindrical ;3广平开杈Open
花瓣先端形状 1锐角Acute;2钝角Obtuse; 82.988.514.26 0.50
Petal shape 3圆形Round
70.2125.53 0.60 花萼片 1小、细Small & thin;
Sepals 2大、常呈叶状Big & leafy
44.68 51.06 0.70 花梗刺毛 0无Without;
Pedicel bristle 1有With
10.6421.2827.6640.43 1.29 主蔓色 1黄绿Yellow-green;
Main vine color 2浅绿Light green;
3绿Green;4深绿Dark green
40.4348.9410.64 0.95 主蔓刺毛 1少Less;
Main vine bristle 2 中More;3多Most
4.2695.74 0.18 主蔓横切面形状 1 五棱形Five prismatic;
Main vine 2圆形Round
section shape
6.3863.834.268.5117.02 1.11 叶形 1掌状Palmate;
Leaf shape 2掌状五角Palmate & pentagonal;
3心脏形Heart shaped;
4心脏五角Heart shaped &
pentagonal;5近圆Near round
叶色 1浅绿Light green;2绿Green; 19.1565.9614.89 0.87
Leaf color 3深绿Dark green
叶缘 1全缘Entire;2波状Wave; 36.1757.456.38 0.86
Leaf margin 3锯齿Jagged
29.79 63.832.134.26 0.86 叶裂刻 0无None;1浅Light;
Type of lobed leaf Deeper;3深Deepest 2中
51.06 19.1525.534.26 1.14 叶面白斑 0无None;1少Less;
Foliage white 2中More;3多Most
spotting
68.0931.91 0.63 叶背刺毛 1硬Hard;
Blade back bristle Soft 2软
2.13 6.3829.7948.94 0.97 瓜梗基部 0无变化Straight;
Stalk basal 1基部稍膨大Slightly enlarged;
2基部膨大Base enlarged;
3均匀膨大Enlarged