Study on high-yielding cultivation technology theory and practice of super hybrid rice in china

Title : Study on high-yielding cultivation technology theory and practice of super hybrid rice in china

Abstract:

China has made great progress in research of super rice, and we achieved the yield as high as 17.28 t/ha over 6 hectares in Yunnan, China in 2018. The plant type of super hybrid rice(SHR) was studied to be characterized with effective increase of source, expansion of sink capacity and coordination of high-level source and sink. The yield difference among SHRs, hybrid rice varieties(HRV) and modern inbred rice(MIR) was shown that: 1) SHR had a significantly higher yield than HRV and MIR by 10.1% and 16.6%, respectively; 2) SHRs, Liangyoupeijiu and Liangyou0293, had higher harvest index than that of Shanyou63(HRV) by 12.2% and 8.3% respectively; 3) The maximum weight of panicle of LiangyouE32 (SHR) at maturity was append up to 13.23g before stem broken in the simulated experiment, while Shanyou63 (HRV) only being 7.72g, indicating SHR has a stronger lodging resistance. The reasons of SHRs with a great yield gap were studied. The results showed that: 1) the RUE of SHRs was significantly lower in ordinary rice area than that in the ecologically suitable rice area by 11.4%; 2) SHR was intolerant to weak light, the RUE of SHRs decreased by 93.7% at 70% artificial shading; 3) SHR was intolerant to lower fertility conditions. LiangyouPeijiu (SHR) at the nitrogen stress yielded 23.1% lower than that at a suitable nitrogen rate. The authors proposed integrated package techniques with the key points of young seedling transplanting, reasonable spacing, watersaving & root-enhancing, and lodging resistance by way of combination of promotion & inhibition.

Biography:

Ma Guohui (Prof), born in May, 1959, a research professor, PhD supervisor, is now the DDG of China National Hybrid Rice R&D Center or Hunan Hybrid Rice Research Center. He is also a member of the expert team of the State’s Support Project of Ministry of Science and Technology. Employed as one of the first batch of research professors of China Food and Food Safety Research Center, he is also selected to take part in the ‘121 Talent Project of New Century’ of Hunan province and honored as ‘Chutian Scholar’ of Hubei province. He served as guest professor in universities including Central South University, Hunan Agricultural University, Yangtze University and Northeast Agricultural University, and has cultivated more than 10 master and doctoral students.
Main achievements: Second prize of National Science and Technology Achievements, 1 First prize of Hunan Provincial Science and Technology Achievements, 3 Second prize of Hunan Provincial Science and Technology Achievements, 5 Third prize of Hunan Provincial Science and Technology Achievements. Advanced Individual of National Agricultural technology extension and Advanced Individual of National Food Production awards by the Ministry of Agriculture in 2004 and 2007 respectively. Advanced Individual of National Rural Science Popularization award by China Association of Science and Technology in 2005. Advanced Individual of National Science and Technology Projects in High-yield Food award by the Ministry of Science and Technology in 2011. He published over 70 Chinese and English research papers in professional magazines in and outside China and published (editor-in-chief or co-author) 5 Chinese and English writings.