Welcome to Acta Agronomica Sinica,

Acta Agron Sin ›› 2010, Vol. 36 ›› Issue (09): 1547-1558.doi: 10.3724/SP.J.1006.2010.01547


Population Characteristics and Formation Mechanism for Super-High- Yielding Hybrid Japonica Rice (13.5 t hm-2)

ZHANG Hong-Cheng1,WU Gui-Cheng1,LI De-Jian2,XIAO Yue-Cheng4,GONG Jin-Long1,LI Jie1,DAI Qi-Gen1,HUO Zhong-Yang1,XU Ke1,GAO Hui1,WEI Hai-Yan1,SHA An-Qin3,ZHOU You-Yan3,WANG Bao-Jin4,WU Ai-Guo4   

  1. 1Innovation Center of Rice Cultivation technology in Yangtze Valley,Ministry of Agriculture/Key Laboratory of Crop Genetic and Physiology of Jiangsu Province,Yangzhou University,Yangzhou 225009, China;2 Rice Research Institute of xianghua, Fengyuan,Xinghua 22570,China;3Bureau of Agriculture of Xing hua County, Xinghua 225700,China;4 Bureau of Agriculture of Jiangyan County,Jiangyan 225500,China
  • Received:2010-02-01 Revised:2010-04-20 Online:2010-09-12 Published:2010-07-05

Abstract: Population characteristics of super-high-yielding hybrid japonica rice (13.5 t ha-1) were studied and its formation mechanism was explored using Yongyou 8 as material in Xinghua and Jiangyan. Results showed that population of 13.5 t ha-1 had more spikelets per panicle and total spikelets than population of 12.0 t ha-1. There was no significant difference in panicles, filled-grain percentage and 1000-grain weight between populations of 13.5 t ha-1 and 12.0 t ha-1. Population of 13.5 t ha-1 exhibited fewer tillers at the early growth stage and achieved excepted number of stems and tillers at critical leaf-age for productive tillers, whose max number of stems and tillers was at jointing stage and was about 1.3 times of excepted number. Then, the number of population stems and tillers began to decrease stably, which achieved expected number again. At last, ratio of productive tillers to total tillers of 13.5 t ha-1 population was more than 75%, which was higher than that of population of 12.0 t ha-1.The leaf area index of 13.5 t ha-1 population was lower than that of 12.0 t ha-1 population at the early growth stage, and the max leaf area index was about 8.5 at booting, which decreased stably and was above 4.0 at maturity. The photosynthetic potential of population with 13.5 t ha-1 was small at early stage and larger at middle and late stages, as compared with population with 12.0 t ha-1. The total photosynthetic potential was above 6.75×106 m2 d ha-1, of which most than 45.0% was from heading to maturity. The dry matter accumulation was smaller compared with population with 12.0 t ha-1 before jointing, and the weight of it was above 60 kg ha-1 at heading, which was significantly higher than that of population with 12.0 t ha-1. The total weight of dry matter was above 23.25 t ha-1, of which above 9.75 t ha-1 was accumulated from heading to maturity. Formation mechanism of super-high yielding population (13.5 t ha-1) was that: population quality was enhanced at critical leaf-age for productive tillers through cultivating strong seedlings, germinating low positiontillers and achieved expected number of stems and tillers in time, which formed the biological foundation for high quality population at middle stage; in order to form high photosynthetic efficiency of population structure with strong lodging-resistance and large population spikeletes at heading, suitable number of strong stems and large panicles was cultivated through establishing suitable dynamic and size of population; in order to enlarge sink-filling and keep strength of stems and sheaths, dry matter accumulation was enriched after heading through photosynthetic system smooth and steady fade away.

Key words: Hybrid Japonica rice, Super*high yielding, Characteristics of population, Formation mechanism

[1] Peng S, Gassman K G, Sheehy J, Khush G S. Yield potential trends of tropical rice since release of IR8 and the challenge of increasing rice yield potential
[J].Crop Sci  
[2] Horie T, Shiraiwa T, Homma K, Katsura K, Maeda Y, Yoshida H. Can yields of lowland rice resume the increases that they showed in the 1980s
[J].Plant Prod Sci  
[3] Ling Q-H(凌启鸿). Quality of Crop Population (作物群体质量). Shanghai: Shanghai Scientific and Technical Publishers, 2000. pp 1-210 (in Chinese)  
[4] FAO. Statistical Databases, Food and Agriculture Organization (FAO) of the Untied Nations, 2004  
[5] Chen W-F(陈温福), Xu Z-J(徐正进). Theories and Methods of Rice Breeding for Super High-Yield (水稻超高产育种理论与方法). Beijing: Science Press, 2008. pp 9-10 (in Chinese) 
[6] Cheng S-H(程式华), Liao X-Y(廖西元), Min S-K(闵绍楷). Study on super rice in China: the thought of background aim and relative problem. Chin Rice (中国稻米), 1998, (1): 3-5 (in Chinese with English abstract) 
[7] Yang R-C(杨仁崔), Yang H-J(杨惠杰). Progress of the research on new plant type rice at IRRI. Hybrid Rice (杂交水稻), 1998, 13(5): 29-31 (in Chinese with English abstract)  
[8] Wu W-G(吴文革), Zhang H-C(张洪程), Wu G-C(吴桂成), Zhai C-Q(翟超群), Qian Y-F(钱银飞), Chen Y(陈烨), Xu J(徐军), Dai Q-G(戴其根), Xu K(许轲). Preliminary study on super rice population sink characters. Sci Agric Sin (中国农业科学), 2007, 40(2): 250-257 (in Chinese with English abstract) 
[9] Wu W-G(吴文革), Zhang H-C(张洪程), Chen Y(陈烨), Li J(李杰), Qian Y-F(钱银飞), Wu G-C(吴桂成), Zhai C-Q(翟超群). Dry matter accumulation and nitrogen absorption and utilization in middle-season indica super hybrid rice
[J].Acta Agron Sin (作物学报.2008, 34(6):1060-1068  
[10] Wu W-G (吴文革), Zhang H-C(张洪程), Qian Y-F(钱银飞), Chen Y(陈烨), Xu J(徐军), Wu G-C(吴桂成), Zhai C-Q(翟超群), Huo Z-Y(霍中洋), Dai Q- G(戴其根). Analysis on dry matter production characteristics of middle-season indica super hybrid rice. Chin J Rice Sci (中国水稻科学), 2007, 21(3): 287-293 (in Chinese with English abstract) 
[11] Li-J (李杰), Zhang H-C(张洪程), Qian Y-F(钱银飞), Guo Z-H(郭振华), Chen Y(陈烨), Dai Q-G(戴其根), Huo Z-Y(霍中洋), Xu K(许轲), Li D-J(李德剑), Hua Z-X(华正雄), Sha A-Q(沙安勤), Zhou Y-Y(周有炎), Liu G-L(刘国林). Growth characteristics of two super-high-yielding japonica hybrid rice combinations. Chin J Rice Sci (中国水稻科学), 2009, 23(2): 179-185 (in Chinese with English abstract)  
[12] Wu G-C(吴桂成), Zhang H-C(张洪程), Qian Y-F(钱银飞), Li D-J(李德剑), Zhou Y-Y(周有炎), Xu J(徐军), Wu W-G(吴文革), Dai Q-G(戴其根), Huo Z-Y(霍中洋), Xu K(许轲), Gao H(高辉), Xu Z-J(徐宗进), Qian Z-H(钱宗华), Sun J-Y(孙菊英), Zhao P-H(赵品恒). Rule of grain yield components from high yield to super high yield and the characters of super-high yielding japonica super rice. Sci Agric Sin (中国农业科学), 2010, 43(2): 266-276 (in Chinese with English abstract)  
[13] Xi H-A(谢华安), Wang W-Q(王乌齐), Yang H-J(杨惠杰), Yang G-Q(杨高群), Li Y-Z(李义珍). The characteristics of super high-yielding hybrid rice. Fujian J Agric Sci (福建农业学报), 2003, 18(4): 201-204(in Chinese with English abstract)  
[14] Yang H-J(杨惠杰), Yang R-C(杨仁崔), Li Y-Z(李义珍), Zheng J-S(郑景生), Jiang Z-W(姜照伟). Determination factor for super-high yield of rice. Fujian J Agric Sci (福建农业学报), 2002, 17(4): 199-203 (in Chinese with English abstract) 
[15] Yang J-C (杨建昌), Du Y(杜永), Wu C-F(吴长付), Liu L-J(刘立军), Wang Z-Q(王志琴), Zhu Q-S(朱庆森). Growth and development characteristics of super-high-yielding mid-season japonica rice. Sci Agric Sin (中国农业科学), 2006, 39(7): 1336-1345 (in Chinese with English abstract) 
[16] Xu H-D (许恒道), Pan Q-M(潘启民), Qi Y-T(齐运田), Liu X-Q(刘希强). The Ganhua 2 population with a yield potential beyond 1 800 Jin per mu and its control technique. Sci Agric Sin (中国农业科学), 1984, 17(5): 12-17 (in Chinese with English abstract)  
[17] Yuan P-R(袁平荣), Sun C-Q(孙传清), Yang C-D(杨从党), Zhou N(周能), Ying J-F(应继峰), Peng S, He Q-R(贺庆瑞), Wang X-K(王象坤). Analysis on grain yield and yield components of the 15 t/hm2 high yielding indica rice (Oryza sativa L.) in Yunnan. Acta Agron Sin (作物学报), 2000, 26(6): 756-762 (in Chinese with English abstract)  
[18] Su Z-F(苏祖芳), Wang H-B(王辉斌), Du Y-L(杜永林), Zhang Y-J(张亚洁), Ji C-M(季春梅), Zhou P-N(周培南). Relationship between population quality and yield formation at middle growth stage in rice. Sci Agric Sin (中国农业科学), 1998, 31(5): 19-26 (in Chinese with English abstract)  
[19] Su Z-F(苏祖芳), Zhou P-N(周培南), Xu N-X(许乃霞), Zhang Y-J(张亚洁). Effects of nitrogen and planting density on N-absorption and yield of rice. Chin J Rice Sci (中国水稻科学), 2001, 17(4): 281-286 (in Chinese with English abstract)
No related articles found!
Full text



No Suggested Reading articles found!