中国粳稻春江06抗白背飞虱的系谱分析

对中国粳稻春江06的抗白背飞虱特性进行系谱分析表明,春江06对白背飞虱的拒取食和杀卵抗性均来源于秀水620.秀水620的亲本中,只有秀水04具有较强的拒取食抗性,但没有杀卵抗性.在祥湖24中检测到明显的杀卵反应.亲本秀水04、单209和辐农709具有拒取食抗性,但测21没有.单209和辐农709的共同亲本农虎6号也具有拒取食抗性.然而,农虎6号、农垦58(日本粳稻)和老虎稻(中国粳稻地方品种)不具有拒取食抗性,在田间表现出感虫性.农虎6号、单209、辐农709和秀水04表现出稳定的田间抗性.春江06育种中的两个籼稻品种IR26和IR28高感白背飞虱,既无拒取食抗性,也无杀卵作用.

Genealogical Analysis of Resistance to the Whitebacked Planthopper, Sogatella furcifera in Chinese Japonica Rice Chunjiang 06

Genealogical analysis was conducted to study the resistance to the whitebacked planthopper (WBPH), Sogatella furcifera, in a Chinese japonica rice variety Chunjiang 06 (CJ-06). Results indicated that both the sucking inhibitory- and ovicidal resistance to WBPH were inherited from Xiushui 620 (XS-620). Among the parental lines of XS-620, only Xiushui 04 (XS-04) had a strong sucking inhibitory resistance, but no ovicidal resistance. Significant ovicidal response was detected in Xianghu 24. Of the 3 parental lines of XS-04, Dan 209 (D-209) and Funong 709 (FN-709) had sucking inhibitory resistance, whereas Ce 21(C-21) did not. Nonghu 6 (NH-6), a common parent of D-209 and FN-709, also inhibited sucking. However, the parents of NH-6, Nongken 58 (Japanese japonica) and Laohudao (LHD, Chinese japonica landrace), had no sucking inhibitory resistance, and were susceptible to WBPH under the field conditions. NH-6, D-209, FN-709 and XS-04 expressed definite resistance to WBPH in the fields. Two indica varieties IR26 and IR28, which were used to breed CJ-06, were highly susceptible to WBPH, and had neither sucking inhibitory- nor ovicidal resistance.