Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2009, Vol. 25 ›› Issue (2): 172-175.

Special Issue: 园艺

• 园艺园林科学 • Previous Articles     Next Articles

Studies on the somaclonal variants with Resistance to Fusarica Acid in Chieh-qua(Benincasa Hispida Cogn.var.Chieh-qua How.)

He Xiao-ming,Da-sen Xie,Qing-wu Peng,Li-xia Mu   

  • Received:2008-10-20 Revised:2008-11-01 Online:2009-01-20 Published:2009-01-20

Abstract: Fusarium wilt was one of the main diseases of Chieh-qua. For exploiting resistant germplasm, somaclonal variants were selected from adventitious buds by means of in vitro selection using fusarica acid (FA) as the selective agent. Then main traits of the somaclonal variants were studied. The result showed that the suitable concentration of FA for resistance selection was 60~80mg•L-1. The selected-colonies kept resistance to FA during subculture. The R1 and R3 lines from selected-colonies were resistant to fusarium wilt which resistance level were R and MR respectively. These progeny lines were similar to donor material in main agronomic traits except the resistance to fusarium wilt. The result showed that selection in vitro for Resistance to FA was one of optional methods for obtaining the resistance germplasm to fusarium wilt in Chieh-qua.