Yield, quality and irrigation water use efficiency of sweet sorghum [Sorghum bicolor (Linn.) Moench] under different land types in arid regions

Xie, T. and Su, P. and Shan, L. and Ma, J. (2012) Yield, quality and irrigation water use efficiency of sweet sorghum [Sorghum bicolor (Linn.) Moench] under different land types in arid regions. Australian Journal of Crop Science, 6 (1). pp. 10-16.

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Abstract

In order to evaluate changes in biomass, sugar content, ethanol yield as well as water use status of sweet sorghum [Sorghum biocolor (L.) Moench] a number of experiments conducted in marginal land arid region of Hexi Corridor in northwestern China, with the average rainfall of 116.8 mm, in three land types including loam land, saline-alkaline land and sandy land. The saline-alkaline land and sandy land possessed low total aboveground dry weights of 22.1 and 26.8 t ha-I in 2009, respectively. In 2010, total soluble sugar yields for saline-alkaline land and sandy land varied from 11.00 to11.28 t ha-I, which were significantly higher than loam land's total soluble sugar yield. Similarly, ethanol yield originated from sugar ranged from 6032.57 to 6193.02 L ha-I for saline-alkaline land and sandy land, respectively, indicating a significant difference in comparison with ethanol yield in loam land. However, irrigation water use efficiency of aboveground biomass in 2009 were 3.93, 3.62 and 2.36 kg t11-3 for loam land, saline-alkaline land and sandy land, respectively. The same trend was found in 2010. It is concluded that although loam land produced more biomass yield and irrigation water use efficiency, the higher sugar and ethanol yield of sweet sorghum was acquired in saline-alkaline land and sandy land. Considering the competition of production between food and energy crops, it is pragmatic and meaningful to develop sweet sorghum in saline-alkaline and sandy land. Meanwhile, the soil condition can be improved to adapt different cultivation modes in order to increase biomass yield or water use efficiency in saline-alkaline and sandy lands.

Item Type: Article
Uncontrolled Keywords: Land types; biomass yield; sugar, ethanol yield; irrigation water use efficiency.
Author Affiliation: 1Linze Inland River Basin Research Station, Heihe Key Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 2Linze Inland River Basin Research Station, Plant Stress Ecophysiology and Biotechnology Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 3Forestry Department, Gansu Agricultural University, Lanzhou 730070, China 4Plant pathology Department, University of Arkansas, Fayetteville, America
Subjects: Plant Production
Divisions: Sorghum
Depositing User: Mr. SanatKumar Behera
Date Deposited: 11 Mar 2012 14:04
Last Modified: 11 Mar 2012 14:06
Official URL: http://www.cropj.com/january2012.html
URI: http://eprints.icrisat.ac.in/id/eprint/3771

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