Innovation on Distant Hybridization of Saline-tolerant Mud Flat Spartina and Rice Germplasm

Author

Qikang Chen, Bo Chen, Huilan Lu, Hui Zhou and Zhiping Mei

Asian Agricultural Research, 2016, vol. 08, issue 11

Abstract: To explore saline-tolerant high yield Spartina and rice germplasm resources, innovate upon distant hybridization technology, and develop new saline-tolerant mud flat Spartina germplasm, autonomous patent for invention was used to study distant hybridization of Spartina and rice in 2005-2016. The study adopted tidal flat planting screening, phenotypic screening, molecular marker assisted selection, to find biological evidences of new germplasm, and also applied crossbreeding, conventional breeding, and molecular breeding, to select new saline-tolerant Spartina and rice varieties. With 12 years of efforts, the team developed 1498 crossbreeding combinations and established pedigree file and seed bank, tested 307 crossbreeding materials (57 hybrid seeds showed parental genetic components of Spartina and Rice); obtained Spartina /Rice distant hybridization and seed setting, transplanting, hybridization material economic traits, and molecular biological experimental evidences; Rice♀ × Spartina ♂ hybridization success rate of 1.04-1.39%; obtained authorization of patent for invention of Distant Hybridization Methods for Spartina and Rice; formulated procedures for high yield cultivation of Spartina-rice, planted 33.33 hm2 Spartina-Rice in coastal saline and alkaline land, cultivated 10 new saline-tolerant Spartina-Rice varieties, and the rice yield up to 5.925-8.28 t/hm2. Results indicate that Spartina-Rice is saline-tolerant high yield rice germplasm, developed through sexual hybridization, conventional breeding, and molecular breeding technologies, and is optimal crop for saline and alkaline land. Success of Spartina-Rice solves the problem of saline-tolerant crop badly for transformation of saline and alkaline land, the problem of feeds for herbivores, as well as problem of environmental pollution resulted from straw burning. Besides, it is of essential scientific significance for resource utilization, increase of agricultural efficiency, grain security, and farmland strategy, so it has broad application prospect.

Keywords: Mud flat; Spartina and rice; Distant Hybridization; New saline-tolerant germplasm; Innovation; Agribusiness (search for similar items in EconPapers)
Date: 2016
References: Add references at CitEc
Citations Track citations by RSS feed

Downloads: (external link)
http://purl.umn.edu/253344 (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: http://EconPapers.repec.org/RePEc:ags:asagre:253344

Access Statistics for this article

Asian Agricultural Research is currently edited by November

More articles in Asian Agricultural Research from USA-China Science and Culture Media Corporation
Series data maintained by AgEcon Search (aesearch@umn.edu).

For further details log on website :
http://econpapers.repec.org/article/agsasagre/253344.htm