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Morpho-Agronomic and Biochemical Characterization of Accessions of Tiger Nut (Cyperus esculentus) Grown in the North Temperate Zone of China

文献类型： 外文期刊

作者： Yang, Xiangdong 1 ; Niu, Lu 1 ; Zhang, Yuanyu 1 ; Ren, Wei 1 ; Yang, Chunming 1 ; Yang, Jing 1 ; Xing, Guojie 1 ; Zhong, Xiaofang 1 ; Zhang, Jun 2 ; Slaski, Jan 3 ; Zhang, Jian 2 ;

作者机构： 1.Jilin Acad Agr Sci, Inst Agr Biotechnol, Changchun 130033, Peoples R China

2.Jilin Agr Univ, Fac Agron, Changchun 130118, Peoples R China

3.InnoTech Alberta, Vegreville, AB T9C 1N6, Canada

4.Univ British Columbia, Dept Biol, Okanagan Campus, Kelowna, BC V1V 1V7, Canada

关键词： tiger nut; accessions; morpho-agronomic traits; biochemical composition; principal analysis; clustering analysis

期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）

ISSN：

年卷期： 2022 年 11 卷 7 期

页码：

收录情况： SCI

摘要： Tiger nut (Cyperus esculentus L.) has recently attracted increasing interest from scientific and technological communities because of its potential for serving as additional source of food, oil, and feed. The present study reports morphology and biochemical characterization of 42 tiger nut accessions collected from China and other counties performed in the 2020 and 2021 growing seasons at Nongan, Jilin Province. Assessment of variability of 14 agronomic traits including plant height, maturation, leaf width, tilling number, color, size, and shape: 100-tuber weight showed a wide range of phenotypic variation. The color, size, and shape and maturation of the tubers, as well as the leaf width, were the most distinct characteristics describing variation among the accessions. Compositional analyses of major nutritional components of the tubers reveals that this crop could be a source of high-value proteins, fatty acids, and carbohydrates. Specifically, tiger nut tubers contained high levels of starch, oil, and sugars, and significant amounts of fiber, Ca, P, and Na. Furthermore, the tubers appeared to be a good source of proteins as they contain 16 amino acids, including the essential ones. Amino acid profiles were dominated by aspartic acid followed by glutamic acid, leucine, alanine, and arginine. Overall, these results demonstrated that tiger nut is well adapted to the temperature and light conditions in the north temperate zone of China, even with a shorter growth season. The tiger nut accessions collected here exhibited wide variations for agronomical and biochemical traits, suggesting potential for potential for breeding improvement by maximizing the fresh tuber and grass yield based on the optimal selection of genetic characteristics in climate and soil conditions of northern China.

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