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Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum

Seashore paspalum is a halophytic, warm-season grass with wide applications. It is noted for its superior salt tolerance in saline environments; however, the nutritive value of seashore paspalum and the effect of salinity remains to be determined. Therefore, this study aimed to evaluate the relation...

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Autores principales: Jiang, Kai, Yang, Zhimin, Sun, Juan, Liu, Huancheng, Chen, Shenmiao, Zhao, Yongzhuo, Xiong, Wangdan, Lu, Wenjie, Wang, Zeng-Yu, Wu, Xueli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9559843/
https://www.ncbi.nlm.nih.gov/pubmed/36247632
http://dx.doi.org/10.3389/fpls.2022.944894
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author Jiang, Kai
Yang, Zhimin
Sun, Juan
Liu, Huancheng
Chen, Shenmiao
Zhao, Yongzhuo
Xiong, Wangdan
Lu, Wenjie
Wang, Zeng-Yu
Wu, Xueli
author_facet Jiang, Kai
Yang, Zhimin
Sun, Juan
Liu, Huancheng
Chen, Shenmiao
Zhao, Yongzhuo
Xiong, Wangdan
Lu, Wenjie
Wang, Zeng-Yu
Wu, Xueli
author_sort Jiang, Kai
collection PubMed
description Seashore paspalum is a halophytic, warm-season grass with wide applications. It is noted for its superior salt tolerance in saline environments; however, the nutritive value of seashore paspalum and the effect of salinity remains to be determined. Therefore, this study aimed to evaluate the relationship between agronomic traits and forage quality and identified the effects of short-term high-salt stress (1 week, 700 mM NaCl) on the growth and forage nutritive value of 16 ecotypes of seashore paspalum. The salt and cold tolerances of the seashore paspalum ecotypes were assessed based on the survival rate following long-term high-salt stress (7 weeks, 700 mM NaCl) and exposure to natural low temperature stress. There were significant genetic (ecotype-specific) effects on plant height, leaf–stem ratio, and survival rate of seashore paspalum following salt or low temperature stress. Plant height was significantly negatively correlated with the leaf–stem ratio (r = −0.63, P<0.01), but the heights and leaf–stem ratios were not significantly correlated with the fresh weight (FW) and dry weight (DW) of the shoots. High salinity decreased the FW and DW of the shoots by 50.6% and 23.6%, respectively, on average. Seashore paspalum exhibited outstanding salt tolerance and forage quality at high salinity. The survival rate of the different ecotypes of seashore paspalum varied from 6.5% to 49.0% following treatment with 700 mM NaCl for 7 weeks. The crude protein (CP) content of the control and treatment groups (700 mM NaCl) was 17.4% and 19.3%, respectively, of the DW on average, and the CP content of most ecotypes was not significantly influenced by high salinity. The average ether extract (EE) content ranged from 4.6% to 4.4% of the DW under control and saline conditions, respectively, indicating that the influence was not significant. The neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents of the control group were 57.4% and 29.8%, respectively, of the DW on average. Salt stress reduced the content of NDF and ADF to 50.2% and 25.9%, respectively, of the DW on average. Altogether, the results demonstrated that stress did not have any significant effects on the CP and EE content of most ecotypes, but reduced the NDF and ADF content and improved relative feed value (RFV). The results obtained herein support the notion that seashore paspalum is a good candidate for improving the forage potential of saline soils and can provide useful guidelines for livestock producers.
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spelling pubmed-95598432022-10-14 Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum Jiang, Kai Yang, Zhimin Sun, Juan Liu, Huancheng Chen, Shenmiao Zhao, Yongzhuo Xiong, Wangdan Lu, Wenjie Wang, Zeng-Yu Wu, Xueli Front Plant Sci Plant Science Seashore paspalum is a halophytic, warm-season grass with wide applications. It is noted for its superior salt tolerance in saline environments; however, the nutritive value of seashore paspalum and the effect of salinity remains to be determined. Therefore, this study aimed to evaluate the relationship between agronomic traits and forage quality and identified the effects of short-term high-salt stress (1 week, 700 mM NaCl) on the growth and forage nutritive value of 16 ecotypes of seashore paspalum. The salt and cold tolerances of the seashore paspalum ecotypes were assessed based on the survival rate following long-term high-salt stress (7 weeks, 700 mM NaCl) and exposure to natural low temperature stress. There were significant genetic (ecotype-specific) effects on plant height, leaf–stem ratio, and survival rate of seashore paspalum following salt or low temperature stress. Plant height was significantly negatively correlated with the leaf–stem ratio (r = −0.63, P<0.01), but the heights and leaf–stem ratios were not significantly correlated with the fresh weight (FW) and dry weight (DW) of the shoots. High salinity decreased the FW and DW of the shoots by 50.6% and 23.6%, respectively, on average. Seashore paspalum exhibited outstanding salt tolerance and forage quality at high salinity. The survival rate of the different ecotypes of seashore paspalum varied from 6.5% to 49.0% following treatment with 700 mM NaCl for 7 weeks. The crude protein (CP) content of the control and treatment groups (700 mM NaCl) was 17.4% and 19.3%, respectively, of the DW on average, and the CP content of most ecotypes was not significantly influenced by high salinity. The average ether extract (EE) content ranged from 4.6% to 4.4% of the DW under control and saline conditions, respectively, indicating that the influence was not significant. The neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents of the control group were 57.4% and 29.8%, respectively, of the DW on average. Salt stress reduced the content of NDF and ADF to 50.2% and 25.9%, respectively, of the DW on average. Altogether, the results demonstrated that stress did not have any significant effects on the CP and EE content of most ecotypes, but reduced the NDF and ADF content and improved relative feed value (RFV). The results obtained herein support the notion that seashore paspalum is a good candidate for improving the forage potential of saline soils and can provide useful guidelines for livestock producers. Frontiers Media S.A. 2022-09-29 /pmc/articles/PMC9559843/ /pubmed/36247632 http://dx.doi.org/10.3389/fpls.2022.944894 Text en Copyright © 2022 Jiang, Yang, Sun, Liu, Chen, Zhao, Xiong, Lu, Wang and Wu https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Jiang, Kai
Yang, Zhimin
Sun, Juan
Liu, Huancheng
Chen, Shenmiao
Zhao, Yongzhuo
Xiong, Wangdan
Lu, Wenjie
Wang, Zeng-Yu
Wu, Xueli
Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title_full Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title_fullStr Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title_full_unstemmed Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title_short Evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
title_sort evaluation of the tolerance and forage quality of different ecotypes of seashore paspalum
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9559843/
https://www.ncbi.nlm.nih.gov/pubmed/36247632
http://dx.doi.org/10.3389/fpls.2022.944894
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