[1]王小虎,钟卫国,李标,等.江苏省杂交粳稻与常规粳稻新品种主要性状比较[J].江苏农业学报,2017,(04):729-738.[doi:doi:10.3969/j.issn.1000-4440.2017.04.002]
 WANG Xiao-hu,ZHONG Wei-guo,LI Biao,et al.Comparative analysis of major traits of new varieties between japonica hybrid rice and conventional japonica rice in Jiangsu province[J].,2017,(04):729-738.[doi:doi:10.3969/j.issn.1000-4440.2017.04.002]
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江苏省杂交粳稻与常规粳稻新品种主要性状比较()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年04期
页码:
729-738
栏目:
遗传育种·生理生化
出版日期:
2017-08-30

文章信息/Info

Title:
Comparative analysis of major traits of new varieties between japonica hybrid rice and conventional japonica rice in Jiangsu province
作者:
王小虎123钟卫国3李标3潘斌清3端木李玲4俞良3胡江2端木银熙3梁国华1钱前2
(1.扬州大学江苏省遗传生理重点实验室/教育部植物功能基因组学重点实验室, 江苏扬州225009;2.中国水稻研究所水稻生物学国家重点实验室,浙江杭州310006;3.常熟市农业科学研究所/江苏省杂交晚粳工程技术研究中心/国家杂交水稻工程技术研究中心常熟分中心,江苏常熟215500;4.常熟市种子管理站,江苏常熟215500)
Author(s):
WANG Xiao-hu123ZHONG Wei-guo3LI Biao3PAN Bin-qing3DUANMU Li-lin4YU Liang3HU Jiang2DUANMU Yin-xi3LIANG Guo-hua1QIAN qian2
(1.Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics,Ministry of Education,Yangzhou University,Yangzhou 225009,China;2.State Key Laboratory of Rice Biology,China National Rice Research Institute,Hangzhou 310006,China;3.Changshu Agricultural Research Institute/Jiangsu Engineering Technology Research Center for Late Hybrid Japonica Rice/Changshu Subcenter of China National Hybrid Rice Research and Development Center,Changshu 215500,China;4.Changshu Seed Management Station,Changshu 215500,China)
关键词:
杂交粳稻常规粳稻农艺性状品质性状抗病性
Keywords:
japonica hybrid riceconventional japonica riceagronomic traitgrain qualitydisease resistance
分类号:
S511.032
DOI:
doi:10.3969/j.issn.1000-4440.2017.04.002
文献标志码:
A
摘要:
利用2013-2015年江苏省粳稻新品种区域试验数据,对参试的杂交粳稻与常规粳稻主要农艺性状、品质性状及抗病性进行比较分析。结果表明:与常规粳稻相比,杂交粳稻在株高、分蘖率和每穗总粒数上具有较强的正向竞争优势,但成穗率、有效穗数、结实率、千粒质量为负优势,杂交粳稻在产量上没有明显的竞争优势。相关分析、多元线性回归分析和通径分析结果表明,每穗总粒数与结实率对杂交粳稻产量贡献最大。杂交粳稻的主要品质性状与常规粳稻相比具有一定的竞争优势;垩白粒率和垩白度在各类型品种(组合)间的变异系数明显大于其他品质性状。杂交粳稻的垩白粒率、垩白度及直链淀粉含量优质达标率均偏低,表明垩白粒率和垩白度高以及直链淀粉含量偏低是制约江苏省杂交粳稻品质性状提高的主要因素。杂交粳稻对苗瘟、穗颈瘟、条纹叶枯病的抗性总体强于常规粳稻,对纹枯病的抗性总体弱于常规粳稻;对白叶枯病的抗性,与常规粳稻相比,杂交中粳较弱,杂交晚粳较强。综上所述,江苏省杂交粳稻育种中在提高每穗总粒数和结实率的基础上应加强垩白性状的改良,并重视综合抗病性的选择。
Abstract:
Based on regional trial data of newly-bred japonica rice in Jiangsu province from 2013 to 2015, the major agronomic traits, quality traits and disease resistance of japonica hybrid rice(JHR) and conventional japonica rice(CJR) varieties were compared. JHR in plant height, tiller number and grain number per panicle presented stronger positive competitive advantage over CJR, but negative advantages in spike rate, effective panicle number, seed-setting rate, and 1 000-grain weight. No significantly competitive advantage was observed in the yield of hybrid japonica. Correlation analysis, multiple linear regression analysis and path analysis indicated that spikelets per panicle and seed-setting rate of the hybrid rice were the two primary contributions to the yield of hybrid rice. The major quality traits of JHR had a certain degree of competitive advantage over CJR. The chalky rice rate and chalkiness degree showed much greater variation coefficients among varieties than other grain quality traits did. The chalky rice rate, chalkiness degree and amylase content of JHR were lower, indicating that the weaker chalky characters and lower amylose content were the major factors restricting the improvement of quality traits of JHR in Jiangsu province. The resistances of JHR to seedling blast, neck blast, rice stripe disease were stronger than those of CJR, but to sheath blight was weaker. The resistance to bacterial leaf blight was weaker in medium japonica hybrid rice but stronger in late japonica hybrid rice. In summary, in Jiangsu province, the strategy for JHR breeding targeting improving spikelets per panicle and seed-setting rate should focus on the improvement of chalky characters and disease resistance.

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备注/Memo

备注/Memo:
收稿日期:2017-03-02 基金项目:江苏省科技计划后补助项目(BE2015378);江苏省苏州市科技计划项目(SNG201509) 作者简介:王小虎(1979-),男,江西南昌人,博士研究生,高级农艺师,主要从事水稻遗传育种研究。(E-mail) jscsnkswxh188@163.com 通讯作者:梁国华,(E-mail)ricegb@yzu.edu.cn;钱前,(E-mail)qianqian188@hotmail.com
更新日期/Last Update: 2017-09-01