Chinese Journal OF Rice Science

Chinese Journal of Rice Science

• 研究报告 • Previous Articles     Next Articles

Causal Analysis on the Whitebacked Planthopper Prevalence in Chinese Hybrid Rice Shanyou 63

SOGAWA Kazushige 1; LIU Guang-jie 2; ZHUO Jun 3; HAN Xiang 4; YOU Cheng-bing 4   

  1. （ 1Japan International Research Center for Agricultural Sciences; Tsukuba 305-8686; Japan; 2Chinese National Center for Rice Improvement; China National Rice Research Institute; Hangzhou 310006; China; 3College of Plant Protection; Nanjing Agricultural University; Nanjing 210095; 4Department of Plant Protection; Anhui Agricultural University; Hefei 230036; China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-05-30 Published:2003-05-30

中国杂交稻组合汕优63上白背飞虱多发生的成因探讨

寒川一成1；刘光杰2；卓 军3；韩 翔4；尤成冰4   

  1. 1日本国际农林水产业研究中心， 日本 筑波 305-8686； E-mail: ksogawa@jircas.affrc.go.jp； 2中国水稻研究所 国家水稻改良中心， 浙江 杭州 310006； 3南京农业大学 植物保护学院， 江苏 南京 210095； 4安徽农业大学 植物保护系， 安徽 合肥 230036

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Abstract: Population build-up of the whitebacked planthopper (WBPH), Sogatella furcifera, was comparatively observed on a Chinese hybrid rice Shanyou 63 (SY-63) and inbred rice Chunjiang 11 (CJ-11) under the field conditions. WBPH immigrated and laid eggs evenly to the hybrid rice SY-63 and CJ-11. WBPH established significantly higher density of population on SY-63 than did on CJ-11,because of different egg mortality between the varieties. Population build-up by WBPH was compared between SY-63 and its parental lines. WBPH population was suppressed in the restorer line Minghui 63 (MH-63), while exceedingly promoted in Zhenshan 97A (ZS-97A) and Zhenshan 97B (ZS-97B), the CMS and its maintainer lines, respectively. Biomasses of SY-63 and ZS-97A were equally efficiently converted to WBPH biomass. However, SY-63 allowed WBPH to reproduce more progenies without suffering destructive damages, because of its greater biomass productivity compared to ZS-97A. WBPH females excreted larger amounts of honeydew, indicating higher rate of sucking on ZS-97A and ZS-97B, and relatively less honeydew on MH-63 than on SY-63. WBPH sucking on ZS-97A could be stimulated by significantly higher concentration of free amino acids in the phloem sap. On the contrary, MH-63 might suppress WBPH sucking due to its poor amino acid components in the phloem sap. As a conclusion, prevalence of WBPH in SY-63 was caused by extreme susceptibility inherited from ZS-97A, and great tolerance to WBPH infestation due to heterosis in SY-63. The extreme susceptibility was not associated with the CMS trait in ZS-97A.

Key words: whitebacked planthopper, hybrid rice, insect susceptibility, insect tolerance, biomass

摘要： 以汕优63及其亲本、常规稻春江11为材料，研究了白背飞虱在中国杂交稻品种汕优63 上大量发生的主要原因。从杂交稻汕优63和常规粳稻春江11上白背飞虱的发生情况来看，白背飞虱长翅型雌成虫的迁入密度和产卵数没有明显差异，种群的变化也一致。但汕优63的卵孵化率较高，若虫种群密度也明显较高。从汕优63及其亲本对白背飞虱的反应来看，汕优63的恢复系明恢63抑制白背飞虱的繁殖，但不育系珍汕97A和保持系珍汕97B对白背飞虱繁殖有促进作用。珍汕97A和汕优63的稻飞虱间的干物质转化率基本相同，但汕优63具有较高的干物质生产能力，可能使白背飞虱繁殖密度较高。日平均蜜露分泌量，以珍汕97A和珍汕97B最多，明恢63最少，汕优63居中。珍汕97A的筛管液中大部分是主要氨基酸，浓度高于汕优63和明恢63。汕优63与明恢63的筛管液中氨基酸的总浓度基本相同，但微量氨基酸浓度高于明恢63。总的来看，汕优63的白背飞虱繁殖率较高，主要原因在于不育系珍汕97A的高感虫性和杂种优势的高干物质转化能力产生的耐受性，而不是珍汕97A的白背飞虱感虫性和细胞质不育导致的。

关键词: 白背飞虱, 杂交水稻, 感虫性, 耐虫性, 生物产量