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Acta Prataculturae Sinica ›› 2015, Vol. 24 ›› Issue (4): 48-56.DOI: 10.11686/cyxb20150406

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Temporal variation of water soluble carbohydrate in Seriphidium transiliense under different mowing intensities and it how to transfer during seasonal change

HOU Yu-Rong, AN Sha-Zhou*   

  1. College of Grassland and Environment Science, Xinjiang Agricultural University, Key Laboratory of Grassland Resources and Ecology of Xinjiang, Urumqi 830052, China
  • Received:2013-06-24 Revised:2014-07-11 Online:2015-04-20 Published:2015-04-20
  • About author:HOU Yurong (1982-), female, assistant researcher. E-mail: houyurong0994@126.com

Abstract: Seriphidium transiliense is one of a common constructive species of sagebrush desert in Xinjiang, which is responsible for livestock recovery body fat, lambing, nurture young in spring pasture and storage next generation in autumn pasture. The paper analyzed the water-soluble carbohydrate dynamic change in roots, stems, and leaves of S. transiliense in different mowing intensities based on the sagebrush desert and field positional sampling. Meanwhile, based on the analysis for data, the beginning stage of nutrient storage and consumption of S. transiliense made clear, but also, the relevance was judged between water-soluble carbohydrate storage amount in autumn root and plant consumed carbohydrate for germination in coming year. The results showed that, the content of water-soluble carbohydrate in roots finished the accumulation on Oct. 15. When the plants are beginning turning green in the coming year, water-soluble carbohydrate stored in roots transferred from belowground back to aboveground automatically, which providing nutrients to turning green and regrowth. Water-soluble carbohydrate of C2 treatment was different comparing to others, it not only had a highest sugar accumulation in autumn and maintained a higher content after plants turning green and regrowth in coming year, water-soluble carbohydrate content of C0 treatment always the lowest one regardless of in autumn or in spring, metabolism was mild recession in plants body and maintaining its life reluctantly. Non-mowing is not the best recovery method, this explained that moderate mowing is advantageous to forage grass growth and recycling. But C0 even presented inferior strength and the death.