华北农学报 ›› 1995, Vol. 10 ›› Issue (1): 22-28. doi: 10.3321/j.issn:1000-7091.1995.01.005

所属专题: 水稻

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美国稻在水稻杂种优势利用中的地位

李自超, 王象坤, 王剑平, 黄燕红   

  1. 北京农业大学植物遗传育种系, 北京, 100094
  • 收稿日期:1994-01-25 出版日期:1995-03-28

Studies on the Position of American Rice Varieties in Heterotic Utilization in F1 Hybrid of Rice

Li Zichao, Wang Xiangkun, Wang Jianping, Huang Yanhong   

  1. Beijing Agricultural University, Beijing
  • Received:1994-01-25 Published:1995-03-28

摘要: 对13个美国稻(A)与籼稻(H)、粳稻(K)的F1杂种优势的研究结果表明,A×H的各性状的杂种优势与K×H(亚种间)比较一致,但一般稍低于K×H,单株产量、单株穗数和主穗颖花数优势较强,且是可利用的杂种优势,株高也有较强的优势,但是非利用的杂种优势,单株产量的优势大小与美国稻的亲和性有密切关系;在A×K中,单株产量和单株穗数有较强的杂种优势,表现了与K×K较一致的趋势。千粒重无论在A×H或A×K中都表现了较低的正向优势。另外,根据试验结果提出了美国稻中的广亲和品种(WCVS)与籼稻杂交或美国稻与粳稻杂交均为水稻杂优利用中较好的高产组合模式,其中A×K更为切实可行。

关键词: 美国稻, 杂种优势, 广亲和品种

Abstract: The analysis of the heterotic effect of F1 between the American rice (A) and the Indica type(H) or the Japonica type(K) showed that the heterotic effect of most studied charaters in cross A ×K was close to. but lower than that of H ×K. Grain yield per plant, panicle number per plant and spikelet number per main panicle all showed highest heterosis, and were found usable in rice production. The heterosis in plant height was also high, but unusable. The heterosis in grain yield per plant showed close relationship with comptibility of the American rice.In A×K, the heterosis in grain yield per plant and panicle number per plant was highest, and the heterosis of F1 in A ×K tended to be similar to in K ×K. The 1000-grain weight had lower positive heterotic effect in both A ×H and A ×K. Furthermore. the test results indicated that the crosses between WCVS of the American rice and Indica and between American rice and Japonica were better models of high yield combination in rice heterotic utilization. and that A ×K was more practical.

Key words: American rice variety, Heterosis, Wide compatibility variety

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引用本文

李自超, 王象坤, 王剑平, 黄燕红. 美国稻在水稻杂种优势利用中的地位[J]. 华北农学报, 1995, 10(1): 22-28. doi: 10.3321/j.issn:1000-7091.1995.01.005.

Li Zichao, Wang Xiangkun, Wang Jianping, Huang Yanhong. Studies on the Position of American Rice Varieties in Heterotic Utilization in F1 Hybrid of Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(1): 22-28. doi: 10.3321/j.issn:1000-7091.1995.01.005.

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