Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (10): 6-11.doi: 10.11924/j.issn.1000-6850.casb2020-0100

Previous Articles     Next Articles

The Effect of Abiotic Stresses on Sugar Yield in Energy Crops: A Review

Zhu Lin1(), Bai Zhenqing1,2, Wang Yanfeng1,2, Wu Jiawen1,2()   

  1. 1College of Life Sciences, Yan’an University, Yan’an Shaanxi 716000
    2Shaanxi Key Laboratory of Chinese Jujube, Yan’an University, Yan’an Shaanxi 716000
  • Received:2020-05-14 Revised:2020-07-24 Online:2021-04-05 Published:2021-04-12
  • Contact: Wu Jiawen E-mail:18329977201@163.com;wujiawende@126.com

Abstract:

Using agricultural field, which is not suitable for food crop production under the stress of unfavorable environmental factors, to cultivate energy crops can not only ensure sustainable agricultural development, but also provide feedstock for biofuels production, and then alleviate energy crisis. Because sugar is the base for producing biofuel ethanol, this study reviewed the effects of water, salinity, temperature, NPK (nitrogen, phosphorus, potassium) nutrients, planting density, plant hormones and heavy metals, etc. on the accumulation of sugar in energy crops. It is found that drought, salinity-alkalinity or slight low temperature, and proper application of NPK fertilizer, rare earth elements or ABA (abscisic acid) are beneficial to promote sugar accumulation in crops, indicating that appropriate abiotic stresses and supplementation of fertilizer or foliar application of micro-fertilizer could substantially facilitate ethanol production. The study could provide theoretical basis and technical support for better use of farmland, which is not suitable for food production as a result of environmental stress, to cultivate energy crops.

Key words: energy crops, biomass energy, crops with high sugar content, sucrose, stress, ethanol, environmental factors

CLC Number: