Next Article in Journal
Quantification of Microstructural Features and Prediction of Mechanical Properties of a Dual-Phase Ti-6Al-4V Alloy
Previous Article in Journal
On the Determination of Magnesium Degradation Rates under Physiological Conditions
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessReview
Materials 2016, 9(8), 635;

Redefining Agricultural Residues as Bioenergy Feedstocks

Instituto Nacional de Investigaciones Agropecuarias (INIAP); Quito 170315, Ecuador
Department of Biological Sciences, College of Arts and Sciences, University of North Texas, Denton, TX 76203, USA
Misión Biológica de Galicia (CSIC), Apartado 28, Pontevedra 36080, Spain
Author to whom correspondence should be addressed.
Academic Editor: Rafael Luque Alvarez de Sotomayor
Received: 27 May 2016 / Revised: 14 July 2016 / Accepted: 22 July 2016 / Published: 28 July 2016
Full-Text   |   PDF [806 KB, uploaded 29 July 2016]   |  


The use of plant biomass is a sustainable alternative to the reduction of CO2 emissions. Agricultural residues are interesting bioenergy feedstocks because they do not compete with food and add extra value to the crop, which might help to manage these residues in many regions. Breeding crops for dual production of food and bioenergy has been reported previously, but the ideal plant features are different when lignocellulosic residues are burnt for heat or electricity, or fermented for biofuel production. Stover moisture is one of the most important traits in the management of agricultural waste for bioenergy production which can be modified by genetic improvement. A delayed leaf senescence or the stay-green characteristic contributes to higher grain and biomass yield in standard, low nutrient, and drought-prone environments. In addition, the stay-green trait could be favorable for the development of dual purpose varieties because this trait could be associated with a reduction in biomass losses and lodging. On the other hand, the stay-green trait could be detrimental for the management of agricultural waste if it is associated with higher stover moisture at harvest, although this hypothesis has been insufficiently tested. In this paper, a review of traits relevant to the development of dual purpose varieties is presented with particular emphasis on stover moisture and stay-green, because less attention has been paid to these important traits in the literature. The possibility of developing new varieties for combined production is discussed from a breeding perspective. View Full-Text
Keywords: senescence; photosynthesis; chlorophyll content; climate change senescence; photosynthesis; chlorophyll content; climate change

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Caicedo, M.; Barros, J.; Ordás, B. Redefining Agricultural Residues as Bioenergy Feedstocks. Materials 2016, 9, 635.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top