Effect of Different Hybrid Treatment on Rate of Offspring Emergence While Crossing Catalpa duclouxii and Paulownia fortunei by Distant Hybridization(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Different Hybrid Treatment on Rate of Offspring Emergence While Crossing Catalpa duclouxii and Paulownia fortunei by Distant Hybridization

Author(s):: GAO Ya-li¹; SONG Jin-dong¹; LI Ya-lin²; 1.Weinan Vocational and Technical College，Weinan，Shaanxi 714000；
2.College of Chemistry and Life Science，Weinan Normal College，Weinan，Shaanxi 714000

Keywords:: Paulownia fortunei; Catalpa duclouxii; distant hybridization; seeding emergence rate

Abstract:: The effect of different hybrid treatments on rate of offspring emergence while crossing Catalpa duclouxii and Paulownia fortunei by distant hybridization were studied，the seeds obtained in previous year by crossing Catalpa duclouxii and Paulownia?fortunei were planted and situation of seeding emergence was observed.The results showed that hybrid seeding emerged in advance by 1~2 days compared with control group，but the difference was not significant.In different treatments to overcome crossinfertility，stigmatic secretion，sucrose solution and mixed pollination had high seeding emergence rate，but ovary injection and stigma cutting had low seeding emergence rate and statistical significance.Hybrid offspring of by crossing Catalpa duclouxii and Paulownia fortunei had an advanced trend in seeding stage，the different hybrid treatments had variant effect on seeding emergence rate of hybrid offspring but not seeding stage.The experiments provided a foundation for the research about hybrids and mutations and crossbreeding.

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Last Update: 2014-08-28