Chinese Journal OF Rice Science

Chinese Journal OF Rice Science >

2010 , Vol. 24 >Issue 4: 360 - 366

DOI: https://doi.org/10.3969/j.issn.1001-7216.2010.04.005

研究报告

Comparison on Yield Traits of Japonica Hybrid Rice Derived from Different Types of Parents

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  • Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics， Ministry of Education， Yangzhou University， Yangzhou 225009， China

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2010-07-10

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Abstract

For investigating the effects of parent on yield traits of japonica hybrid rice, 16 BT type cytoplasmicnuclear male sterile lines (A line), and their corresponding maintainer lines (B line) and 16 restorer lines (R line) were used to make 229 hybrids. According to the results of clustering analysis, 229 F1 hybrids were divided into different groups. By comparing the traits of hybrids in different groups, it is concluded that most traits of F1 hybrids derived from different types of A lines and R lines were midtype between their parents. Heading date and plant height of the parents had no obvious effect on panicle number per plant, spikelet number per panicle, filled grain number per panicle, grain yield per plant and total spikelet number per plant of F1 hybrids. But panicle number per plant and spikelet number per panicle of parents had an obvious impact on F1 hybrids. Spikelet number per panicle, total spikelet number per plant and yield potential of the F1 hybrids derived from small panicle type parents (with less grains in a panicle) were less, whereas these of the F1 hybrids derived from largepanicle type parents were more. F1 hybrids derived from small panicle type A lines and largepanicle type R lines had higher yield than others, which could be a better mating type for japonica hybrid rice breeding. F1 hybrids orignated from erect panicle A lines with curved panicle R lines had the most spikelet number per plant, the highest yield potential and best plant type among four mating types.

Key words： japonica hybrid rice; cytoplasmic male sterile line

Cite this article

TANG Shu-zhu,ZHANG Hong-gen,KONG Xian-wang,WAN Lin-sheng, ZHU Zheng-bin,YI Chuan-deng,GONG Zhi-yun,GU Ming-hong . Comparison on Yield Traits of Japonica Hybrid Rice Derived from Different Types of Parents[J]. Chinese Journal OF Rice Science, 2010 , 24(4) : 360 -366 . DOI: 10.3969/j.issn.1001-7216.2010.04.005

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