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作 者 ：夏丽芳 顾志建 纳海燕

期 刊 ：云南植物研究 1987年 9卷 01期 页码：1-3

关键词：人式杂交苗；金花茶；子叶；下胚轴；

Keywords:Artificial hybrids) Camellia chrysantha,

摘 要 ：本试验选用了两个以金花茶作父本的人工杂交组合F1代实生苗，经根尖体细胞染色体观察鉴定四倍体杂种。一、云南野山茶(Camellia pitardii var．yunnanica六倍体)×金花茶(C.Chrysantha二倍体)。结果为：所获56株子叶和下胚轴为红色的F1代杂种苗中，有55株(98．2%)是真正的四倍体杂种(X2＝0.0128，D.f.= 1，0.95＞p＞0.90)；所获50株子叶和下胚轴为黄白色的杂种苗中，有13株(26%)为真正四倍体杂种(X2=27.38，D.f.=13，0.02＞p＞0.01)。二、云南山茶花(C．reticulata六倍体)×金花茶。结果为：在78株子叶和下胚轴为红色的杂交苗中，有77株(98.7%)为真正四倍体杂种(X2＝0.0128，D.f.＝1，0.95＞p＞0.90)；而在78株子叶及下胚轴为黄白色的杂种苗中，只有21株(26.9%)是真正四倍体杂种(X2＝41.65，D.f.＝24,0.02＞p ＞0.01).

Abstract:Among 56 seedlings with red--colored cotyledons and hypocotyls obtained after hand pollination betweed Camellia pitardii var. yunnanica (hexaploid) and C. chrysantha (diploid), 55 (98.2%) were of true tetraploid-hybrids (X2 = 0.0128, D. f. = 1, 0.95> p >0.90), while among 50 seedlings with yellowish-white-colored cotyledons and hypocotyls, 13(26%) were of true tetraploid-hybrids (X2 = 27.38, D. f. = 13, 0.02> P >0.01). In contrast, among 78 seedlings with red-colored cotyledons and hypocotyls obtained after hand pollination between C. reticuIata (hexaploid) and C. chrysantha, 77(98.7%) were of true tetraploid-hybrids (X2 = 0.0l28, D. f. = 1, 0.95> p >0.90), while among 78 seedlings with yellowish- white-colored cotyledons and hypocotyls, 2l (26.9%) were of true tetraploid-hybrids (Xz = 4l .65, D. f. = 24, 0. 02> p >0.01).

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