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Acta Agron Sin ›› 2000, Vol. 26 ›› Issue (02): 134-142.

• ORIGINAL PAPERS • Previous Articles     Next Articles

Overcoming of Low Seedset in Sweet Potato×Triploidy/Pentaploidy Interspecific Hybrids

WANG Lan-Zhen;LI Wei-Ji;ZHOU Hai-Ying;GE Yu-Mei;LIU Qing-Chang;LU Shu-Yun   

  1. Dep. Plant Gen. & Breeding, China Agri Univ, Beijing, 100094
  • Received:1998-07-22 Revised:1998-12-30 Online:2000-03-12 Published:2000-03-12
  • Contact: WANG Lan-Zhen

Abstract: The causes of low seedset in the hybridizations between sweet potato and 3 x/5 x interspecific hybrids were found as: ① few pollens attached to stigma, few pollens germinated, and slow growing of pollen tube led to low fertility rate which resulted in the first abscission of pollinated ovules; ② s

Key words: Sweet potato, 3x/5x interspecific hybrids, Interspecific cross, Seedset

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