Effects of lignin, cellulose, hemicellulose, sucrose and monosaccharide carbohydrates on soybean physical stem strength and yield in intercropping

Sajad Hussain; Ting Liu; Nasir Iqbal; Marian Brestic; Ting Pang; Maryam Mumtaz; Iram Shafiq; Shuxian Li; Li Wang; Yang Gao; Aaqil Khan; Irshan Ahmad; Suleyman I. Allakhverdiev; Weiguo Liu; Wenyu Yang

doi:10.1039/C9PP00369J

Effects of lignin, cellulose, hemicellulose, sucrose and monosaccharide carbohydrates on soybean physical stem strength and yield in intercropping

Sajad Hussain,

^ab Ting Liu,^ab Nasir Iqbal,

^c Marian Brestic,

^de Ting Pang,^ab Maryam Mumtaz,

^a Iram Shafiq,

^ab Shuxian Li,^ab Li Wang,^ab Yang Gao,^ab Aaqil Khan,^ab Irshan Ahmad,^ab Suleyman I. Allakhverdiev,

^fghijk Weiguo Liu

*^ab and Wenyu Yang*^ab

Author affiliations

* Corresponding authors

^a College of Agronomy, Sichuan Agricultural University, 211-Huimin Road, Wenjiang District, Chengdu 611130, P.R. China
E-mail: lwgsy@126.com, mssiyangwy@sicau.edu.cn
Fax: +86-28-86290870
Tel: +86-28-86290960

^b Sichuan Engineering Research Center for Crop Strip Intercropping System, Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, P. R. China

^c School of Agriculture, Food & Wine, The University of Adelaide, PMB1, Glen Osmond, Adelaide, Australia

^d Department of Plant Physiology, Slovak University of Agriculture, 94976 Nitra, Slovakia

^e Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic

^f К.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, Moscow 127276, Russia

^g Institute of Basic Biological Problems, Russian Academy of Sciences, Institutskaya St. 2, Pushchino, Moscow Region 142290, Russia

^h Department of Plant Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119991, Russia

ⁱ Zoology Department, College of Science, King Saud University, Saudi Arabia

^j Institute of Molecular Biology and Biotechnology, Azerbaijan National Academy of Sciences, Matbuat Avenue 2a, Baku 1073, Azerbaijan

^k Department of Molecular and Cell Biology, Moscow Institute of Physics and Technology, Institutsky lane 9, Dolgoprudny, Moscow region 141700, Russia

Abstract

Soybean (Glycine max L.) has been extensively cultivated in maize–soybean relay intercropping systems in southwest China. However, during the early co-growth period, soybean seedlings suffer from severe shading by maize resulting in lodging and significant yield reduction. The purpose of the present research was to investigate the reasons behind severe lodging and yield loss. Therefore, four different soybean genotypes (B3, B15, B23, and B24) having different agronomic characteristics were cultivated in intercropping and monocropping planting patterns. The results showed that under different planting patterns, the stem resistance varied among genotypes (P < 0.01). The lodging resistance index of B3, B15, B23, and B24 genotypes was 70.9%, 60.5%, 65.2%, and 57.4%, respectively, under intercropping, among which the B24 genotype was less affected by the shade environment as there was little decrease in the lodging resistance index of this genotype under intercropping. The lignin content of B23 and B24 was significantly higher than that of B3 and B15 under both planting patterns. Under intercropping, the hemicellulose content of B23 and B24 stems was significantly higher than that of B3 and B15. Compared to the monocropping, the content of mannose in the structural carbohydrate of soybean stems was decreased in all genotypes except B23, but the difference was not significant. The content of xylose in the structural carbohydrate of soybean stems was significantly higher than that in B3 and B15. Mannose content showed no significant difference among genotypes. The arabinose content of B24 was significantly higher than that of B3, B15, and B23. The effective pod number, seed number per plant, seed weight per plant and yield of soybean plants were significantly decreased under intercropping. Conclusively, manipulation of structural and nonstructural carbohydrate rich soybean genotypes in intercropping systems could alleviate the yield loss due to lodging.

Photochemical & Photobiological Sciences

Effects of lignin, cellulose, hemicellulose, sucrose and monosaccharide carbohydrates on soybean physical stem strength and yield in intercropping

Abstract

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