比利时杜鹃与几种野生杜鹃杂交亲和性研究
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摘要
以比利时杜鹃为母本,常绿杜鹃亚属、映山红亚属、杜鹃亚属、糙叶杜鹃亚属、羊踯躅亚属的11个野生种及1个栽培种为父本进行远缘杂交研究,对父本花粉活力进行测定,并对杂交坐果率、结实率和种子萌发率进行统计分析,探讨杜鹃属植物远缘杂交的亲和性。结果表明:比利时杜鹃与不同的杜鹃杂交,其坐果率、结实率及种子萌发率各不相同,反映出不同的杂交亲和性。其中露珠杜鹃、云上杜鹃、富源杜鹃、马缨杜鹃、基毛杜鹃作为父本杂交,未得到杂交种子,属于杂交不亲和;云锦杜鹃、映山红、羊踯躅、金踯躅作为父本杂交具有较高的坐果率、结实率及种子萌发率,杂交亲和性强;大白花杜鹃、高尚杜鹃及云南杜鹃作为父本杂交具有弱亲和性。
Using Rhododendron hybridum as the female parent, 11 wild species and 1 cultivar of Hymenanthes sub., Tsutsusi sub., Rhododendron sub., Pseudorhodorastrum sub. and Pentanthera sub. were used as the male parent for distant hybridization. The vitality of the male pollen was measured, and the fruit setting rate, seed setting rate and seed germination rate of the hybrid were statistically analyzed to explore the affinity of the distant hybridization of Rhododendron. Results show that after the hybrid of R. hybridum and different Rhododendron,their fruit setting rate, seed setting rate and seed germination rate are different, reflecting different hybrid affinities. Among them, R. irroratum, R. pachypodum, R. fuyuanense, R. delavayi, R. rigidum as the male parent, do not obtain hybrid seeds, belonging to hybrid unaffinity. As a paternal cross, R. fortune, R. simsii, R. molle and R.molle ‘Jingzhizhu' have higher fruit set rate, seed setting rate and seed germination rate, and have strong hybrid affinity. R. decorum, R. decorum subsp. disprepes and R. yunnanense have weak affinity as a male parent.
Using Rhododendron hybridum as the female parent, 11 wild species and 1 cultivar of Hymenanthes sub., Tsutsusi sub., Rhododendron sub., Pseudorhodorastrum sub. and Pentanthera sub. were used as the male parent for distant hybridization. The vitality of the male pollen was measured, and the fruit setting rate, seed setting rate and seed germination rate of the hybrid were statistically analyzed to explore the affinity of the distant hybridization of Rhododendron. Results show that after the hybrid of R. hybridum and different Rhododendron,their fruit setting rate, seed setting rate and seed germination rate are different, reflecting different hybrid affinities. Among them, R. irroratum, R. pachypodum, R. fuyuanense, R. delavayi, R. rigidum as the male parent, do not obtain hybrid seeds, belonging to hybrid unaffinity. As a paternal cross, R. fortune, R. simsii, R. molle and R.molle ‘Jingzhizhu' have higher fruit set rate, seed setting rate and seed germination rate, and have strong hybrid affinity. R. decorum, R. decorum subsp. disprepes and R. yunnanense have weak affinity as a male parent.
引文
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[17]耿兴敏,赵红娟,张月苗,等.授粉方式对不同亚属杜鹃间远缘杂交结实的影响[J].云南农业大学学报(自然科学版),2017,32(1):83-88.
[2]张艳红.我国杜鹃花的繁育研究进展[J].安徽农业科学,2007,35(23):7170-7171,7209.
[3]Leslie A C.The International Rhododendron Register&Checklist:Lem-Z[M].London:Royal Horticultural Society,2004.
[4]康用权,彭春良,廖菊阳,等.湖南杜鹃花资源及其开发利用[J].中南林业科技大学学报(自然科学版),2010,30(8):57-63.
[5]刘晓青,苏家乐,李畅,等.我国杜鹃花产业发展的瓶颈及对策[J].江苏农业科学,2011,39(3):14-16.
[6]兰熙,张乐华,张金政,等.杜鹃花属植物育种研究进展[J].园艺学报,2012,39(9):1829-1838.
[7]张超仪.杜鹃花属植物杂交亲和性研究[D].南京:南京林业大学,2012.
[8]王春春,谢利娟,韩蕾,等.干旱处理对不同品种簕杜鹃光合特性的影响[J].西南林业大学学报(自然科学),2018,38(4):70-75.
[9]黄茂如.杜鹃花[M].上海:上海科学技术出版社,1998.
[10]张轩波.比利时杜鹃生长规律及栽培技术研究:以贵阳市为例[D].贵阳:贵州师范大学,2006.
[11]贾军.比利时杜鹃研究进展[J].中国花卉园艺,2002(4):24-25.
[12]余丽玲,陈凌艳,何天友,等.低温胁迫对西洋杜鹃叶片叶绿素荧光参数的影响[J].西南林业大学学报,2013,33(6):1-6,31.
[13]耿兴敏,赵红娟,吴影倩,等.野生杜鹃花杂交亲和性及适宜的评价指标[J].广西植物,2017,37(8):979-988.
[14]庄平.32种杜鹃花属植物亚属间杂交的可育性研究[J].广西植物,2018,38(12):1566-1580.
[15]庄平.10种杜鹃亚属植物种间杂交的可育性研究[J].广西植物,2018,38(12):1558-1565.
[16]Williams E G,Rouse J L,Palser B F,et al.Reproductive biology of Rhododendron[J].Horticultural Reviews,1990(12):1-67.
[17]耿兴敏,赵红娟,张月苗,等.授粉方式对不同亚属杜鹃间远缘杂交结实的影响[J].云南农业大学学报(自然科学版),2017,32(1):83-88.