Naked barley, called highland barley in Tibet, is the main crop of the Tibetan plateau and the main food of the Tibetan people. It has a long planting history, the largest planting area, the widest distribution and the highest planting ceiling. As for the autonomous region, the annual sown area and total grain output account for more than half of the total sown area and total grain output. In river valleys below 4,200 meters, they account for 30-50% of the area sown to local crops. In the alpine farming area of 4,200-4,500 meters above sea level, it accounts for 70-90% of the planting area of local crops. Naked barley is almost the only crop at agricultural sites above 4,500 meters. Tibetan bare barley has strong cold and drought resistance and ADAPTS to the plateau climate conditions. It is distributed in the vast agricultural areas and farming-pastoral interlacing areas from more than 1,000 meters to 4,500 meters above sea level. At present, the upper limit of planting reaches 4750 meters, which is the highest limit of crop distribution in Tibet. In 1974, a comprehensive scientific expedition to the Qinghai-Tibet Plateau entered Tibet from Sichuan province and carried out investigations along the route. During a survey of wild barley in Jitang district, Chaya County, Qamdo region, Tibetan members provided information about semi-wild wheat, which is similar to wheat in morphology but has broken cob at maturity, and is generally mixed with highland barley and wheat fields as a field weed. Plant specimens and seeds were collected. When the expedition team arrived at the Institute of Agricultural Science and Technology of Tibet Autonomous Region, they learned that comrades Cheng Tianqing and Dong Yuao had collected a kind of wheat with broken cob at maturity in SAN 'an Qu Lin, Longzi County, Shannan Prefecture in 1962, which belonged to the same type as the materials we had collected in other areas of Tibet. Later, in the Xigaze regional agricultural research institute, Comrade Tan Changhua said that he had also seen this kind of wheat when the cob broke at maturity in Renbu County. In addition to the above areas, this wild wheat was also found near Jiacha county, Gongga County and Longzi County in Shannan during this year's investigation. Currently known distribution areas include lancang River basin, Yarlung Zangbo River basin and Longzi River basin.

File naming and required software

The dataset is stored in Excel format and contains 16 workbooks on the cultivated characteristics of bare barley in Tibet and the genetic population of wheat and semi-wild wheat, respectively
1. Growth period of Naked Barley in Tibet (month/day)
2. Leaf emergence rate and functional period of bare barley in spring
3. Leaf traits of bare barley in spring
4. Yield structure of bare barley
5. Composition of ear number of bare barley in spring
6. Ear characters of bare barley in Xizang
Distribution of common Wheat varieties in Xizang and comparison with wheat varieties in Mainland China (General)
8. Picture glume flowers
9. Pseudodense spikelets
Comparison of variation distribution of common wheat in Xizang and wheat in mainland China
Distribution of wheat cultivars in Tibet
Identification results of semi-wild wheat lines in Xizang
13. Characteristics of growth period of semi-wild wheat in Xizang
Morphological characteristics of semi-wild wheat in Xizang
15. First-generation traits of common wheat × Xizang semi-wild barley hybrids
16. Comparison of wheat and semi-wild wheat

Data Citations Data citation guideline What's data citation?

Cite as:

Lu, J. (2022). Cultivation Characteristics of Naked Barley and Genetic Population of Wheat and Semi-wild Wheat in Tibet (1973-1976). A Big Earth Data Platform for Three Poles, DOI: 10.11888/HumanNat.tpdc.272555. CSTR: 18406.11.HumanNat.tpdc.272555. (Download the reference： RIS | Bibtex )

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Copyright & License

To respect the intellectual property rights, protect the rights of data authors, expand services of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.

License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)