KNO3-riming 对盐碱条件下棉花(Gossypium hirsutum L.)农艺、理化和纤维属性的影响

IF 3.7 2区 农林科学 Q1 AGRONOMY Journal of Agronomy and Crop Science Pub Date : 2024-11-03 DOI:10.1111/jac.12779
Ghulam Abbas Narejo, Ameer Ahmed Mirbahar, Sanaullah Yasin, Rafat Saeed
{"title":"KNO3-riming 对盐碱条件下棉花(Gossypium hirsutum L.)农艺、理化和纤维属性的影响","authors":"Ghulam Abbas Narejo,&nbsp;Ameer Ahmed Mirbahar,&nbsp;Sanaullah Yasin,&nbsp;Rafat Saeed","doi":"10.1111/jac.12779","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Salinity stress presents a challenging dilemma for plant growth and development. It disrupts cotton (<i>Gossypium hirsutum</i> L.) yield through an immediate osmotic and a slower ionic phase, ultimately diminishing its fibre quality. Seed priming, a low-cost seed pre-treatment, mitigates these effects by triggering prior metabolic processes and subsequent gene expression. This pioneering work aimed to improve agronomic, physicochemical parameters and fibre characteristics in cotton genotypes (GH-Baghdadi and GH-Mubarak) by potassium nitrate (KNO<sub>3</sub>) mediated osmopriming (1.25% and 1.5% conc.) for 15, 20 and 25 h, along with an un-primed control under saline field conditions. The randomised complete block design experiment in triplicate was conducted in 2019 and 2020 at the soil with electrical conductivity (extract) (EC<sub>e</sub>) 9.44 dS m<sup>−1</sup> to investigate optimal priming media and priming duration. The results showed that salinity impaired physicochemical and agronomic parameters in the control experiment. However, seed priming with 1.5% KNO<sub>3</sub> for 20 h significantly improved the yield and yield contributing components in both genotypes. Maximum values for chlorophyll (Chl) <i>a</i> and <i>b</i> were recorded at 1.50 and 0.90 mg g<sup>−1</sup> fresh weight (FW), respectively, under this treatment. Similarly, the chlorophyll-<i>a</i> fluorescence parameters (Chl-<i>a</i> FPs), such as the maximum quantum yield of photosystem II (<i>Fv/F<sub>m</sub> </i>) (0.83), effective quantum yield of PSII (Φ<sub>PSII</sub>) (0.76) and photochemical quenching coefficient (<i>qP</i>) (0.85), indicated improved light harvesting, electron transport and photosynthetic capacity. Furthermore, the net photosynthetic rate (<i>P</i><sub><i>n</i></sub>) increased to 19.65 mmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup>, while stomatal conductance (<i>g</i><sub><i>s</i></sub>) reached 28.39 mmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup> at the same treatment. A strongly positive correlation was found between chl-<i>a</i> FPs and net photosynthetic yield. Enzymatic activities, including catalase (CAT) at 2.17 unit mg<sup>−1</sup>, superoxide dismutase (SOD) at 1.05 unit mg<sup>−1</sup> and peroxidase (POD) at 1.50 unit mg<sup>−1</sup> were significantly enhanced, along with leaf potassium (K) (14.3 mg g<sup>−1</sup> dry weight [DW]) and calcium (Ca) (6.7 mg g<sup>−1</sup> DW), particularly in GH-Mubarak. Seed-cotton yield (SCY) increased to 5274 kg h<sup>−1</sup> and fibre strength (FS) improved to 31.3 thousand pounds per square inch (tppsi), while ginning out-turn (GOT) reached a maximum of 45% at 1.5% KNO<sub>3</sub> for 20 h in both genotypes. The micronaire value (4 μg in.<sup>−2</sup>) significantly decreased, indicating improved fibre fineness. Correlation analysis revealed a strong positive correlation between physicochemical and agronomic traits, particularly gas exchange characteristics, chlorophyll content and Chl-<i>a</i> FPs, which are strongly associated with SCY and fibre characteristics. In conclusion, priming cotton seeds with 1.5% KNO<sub>3</sub> for 20 h is a promising strategy for mitigating salinity stress and enhancing physicochemical attributes and agronomic traits, ultimately leading to improved cotton yield and fibre quality.</p>\n </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of KNO3-Priming on Agronomic, Physicochemical and Fibre Attributes of Cotton (Gossypium hirsutum L.) Under Saline Conditions\",\"authors\":\"Ghulam Abbas Narejo,&nbsp;Ameer Ahmed Mirbahar,&nbsp;Sanaullah Yasin,&nbsp;Rafat Saeed\",\"doi\":\"10.1111/jac.12779\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Salinity stress presents a challenging dilemma for plant growth and development. It disrupts cotton (<i>Gossypium hirsutum</i> L.) yield through an immediate osmotic and a slower ionic phase, ultimately diminishing its fibre quality. Seed priming, a low-cost seed pre-treatment, mitigates these effects by triggering prior metabolic processes and subsequent gene expression. This pioneering work aimed to improve agronomic, physicochemical parameters and fibre characteristics in cotton genotypes (GH-Baghdadi and GH-Mubarak) by potassium nitrate (KNO<sub>3</sub>) mediated osmopriming (1.25% and 1.5% conc.) for 15, 20 and 25 h, along with an un-primed control under saline field conditions. The randomised complete block design experiment in triplicate was conducted in 2019 and 2020 at the soil with electrical conductivity (extract) (EC<sub>e</sub>) 9.44 dS m<sup>−1</sup> to investigate optimal priming media and priming duration. The results showed that salinity impaired physicochemical and agronomic parameters in the control experiment. However, seed priming with 1.5% KNO<sub>3</sub> for 20 h significantly improved the yield and yield contributing components in both genotypes. Maximum values for chlorophyll (Chl) <i>a</i> and <i>b</i> were recorded at 1.50 and 0.90 mg g<sup>−1</sup> fresh weight (FW), respectively, under this treatment. Similarly, the chlorophyll-<i>a</i> fluorescence parameters (Chl-<i>a</i> FPs), such as the maximum quantum yield of photosystem II (<i>Fv/F<sub>m</sub> </i>) (0.83), effective quantum yield of PSII (Φ<sub>PSII</sub>) (0.76) and photochemical quenching coefficient (<i>qP</i>) (0.85), indicated improved light harvesting, electron transport and photosynthetic capacity. Furthermore, the net photosynthetic rate (<i>P</i><sub><i>n</i></sub>) increased to 19.65 mmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup>, while stomatal conductance (<i>g</i><sub><i>s</i></sub>) reached 28.39 mmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup> at the same treatment. A strongly positive correlation was found between chl-<i>a</i> FPs and net photosynthetic yield. Enzymatic activities, including catalase (CAT) at 2.17 unit mg<sup>−1</sup>, superoxide dismutase (SOD) at 1.05 unit mg<sup>−1</sup> and peroxidase (POD) at 1.50 unit mg<sup>−1</sup> were significantly enhanced, along with leaf potassium (K) (14.3 mg g<sup>−1</sup> dry weight [DW]) and calcium (Ca) (6.7 mg g<sup>−1</sup> DW), particularly in GH-Mubarak. Seed-cotton yield (SCY) increased to 5274 kg h<sup>−1</sup> and fibre strength (FS) improved to 31.3 thousand pounds per square inch (tppsi), while ginning out-turn (GOT) reached a maximum of 45% at 1.5% KNO<sub>3</sub> for 20 h in both genotypes. The micronaire value (4 μg in.<sup>−2</sup>) significantly decreased, indicating improved fibre fineness. Correlation analysis revealed a strong positive correlation between physicochemical and agronomic traits, particularly gas exchange characteristics, chlorophyll content and Chl-<i>a</i> FPs, which are strongly associated with SCY and fibre characteristics. In conclusion, priming cotton seeds with 1.5% KNO<sub>3</sub> for 20 h is a promising strategy for mitigating salinity stress and enhancing physicochemical attributes and agronomic traits, ultimately leading to improved cotton yield and fibre quality.</p>\\n </div>\",\"PeriodicalId\":14864,\"journal\":{\"name\":\"Journal of Agronomy and Crop Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Agronomy and Crop Science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/jac.12779\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Agronomy and Crop Science","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jac.12779","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0

摘要

盐分胁迫给植物的生长和发育带来了极具挑战性的难题。它通过一个直接的渗透阶段和一个较慢的离子阶段破坏棉花(Gossypium hirsutum L.)的产量,最终降低其纤维质量。种子预处理是一种低成本的种子预处理方法,可通过触发先前的新陈代谢过程和随后的基因表达来减轻这些影响。这项开创性工作旨在通过硝酸钾(KNO3)介导的渗透预处理(浓度分别为 1.25% 和 1.5%)15、20 和 25 小时,以及盐碱地条件下未经预处理的对照,改善棉花基因型(GH-Baghdadi 和 GH-Mubarak)的农艺、理化参数和纤维特性。2019 年和 2020 年,在电导率(萃取物)(ECe)为 9.44 dS m-1 的土壤中进行了一式三份的随机完全区组设计实验,以研究最佳引水介质和引水持续时间。结果表明,在对照实验中,盐分损害了理化和农艺参数。然而,用 1.5% KNO3 引种 20 小时可显著提高两种基因型的产量和产量贡献成分。在这种处理下,叶绿素(Chl)a 和 b 的最大值分别为 1.50 和 0.90 mg g-1 鲜重(FW)。同样,叶绿素-a 荧光参数(Chl-a FPs),如光合系统 II 的最大量子产率(Fv/Fm )(0.83)、PSII 的有效量子产率(ΦPSII)(0.76)和光化学淬灭系数(qP)(0.85),也表明光收集、电子传递和光合作用能力得到了提高。此外,在相同处理下,净光合速率(Pn)增加到 19.65 mmol CO2 m-2 s-1,而气孔导度(gs)达到 28.39 mmol CO2 m-2 s-1。在 chl-a FPs 和净光合产量之间发现了很强的正相关性。酶活性,包括过氧化氢酶(CAT)(2.17 单位 mg-1)、超氧化物歧化酶(SOD)(1.05 单位 mg-1)和过氧化物酶(POD)(1.50 单位 mg-1),以及叶片钾(K)(14.3 mg g-1 干重 [DW])和钙(Ca)(6.7 mg g-1 DW)均显著增强,尤其是在 GH-Mubarak 中。两个基因型的籽棉产量(SCY)增加到 5274 公斤/小时,纤维强度(FS)提高到 31.3 千磅/平方英寸(tppsi)。马克隆值(4 μg in.-2)显著下降,表明纤维细度提高。相关分析表明,理化性状和农艺性状之间存在很强的正相关性,尤其是气体交换特性、叶绿素含量和 Chl-a FPs,它们与 SCY 和纤维特性密切相关。总之,用 1.5% KNO3 给棉花种子打底 20 小时是缓解盐度胁迫、提高理化属性和农艺性状、最终提高棉花产量和纤维质量的有效策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Effect of KNO3-Priming on Agronomic, Physicochemical and Fibre Attributes of Cotton (Gossypium hirsutum L.) Under Saline Conditions

Salinity stress presents a challenging dilemma for plant growth and development. It disrupts cotton (Gossypium hirsutum L.) yield through an immediate osmotic and a slower ionic phase, ultimately diminishing its fibre quality. Seed priming, a low-cost seed pre-treatment, mitigates these effects by triggering prior metabolic processes and subsequent gene expression. This pioneering work aimed to improve agronomic, physicochemical parameters and fibre characteristics in cotton genotypes (GH-Baghdadi and GH-Mubarak) by potassium nitrate (KNO3) mediated osmopriming (1.25% and 1.5% conc.) for 15, 20 and 25 h, along with an un-primed control under saline field conditions. The randomised complete block design experiment in triplicate was conducted in 2019 and 2020 at the soil with electrical conductivity (extract) (ECe) 9.44 dS m−1 to investigate optimal priming media and priming duration. The results showed that salinity impaired physicochemical and agronomic parameters in the control experiment. However, seed priming with 1.5% KNO3 for 20 h significantly improved the yield and yield contributing components in both genotypes. Maximum values for chlorophyll (Chl) a and b were recorded at 1.50 and 0.90 mg g−1 fresh weight (FW), respectively, under this treatment. Similarly, the chlorophyll-a fluorescence parameters (Chl-a FPs), such as the maximum quantum yield of photosystem II (Fv/Fm) (0.83), effective quantum yield of PSII (ΦPSII) (0.76) and photochemical quenching coefficient (qP) (0.85), indicated improved light harvesting, electron transport and photosynthetic capacity. Furthermore, the net photosynthetic rate (Pn) increased to 19.65 mmol CO2 m−2 s−1, while stomatal conductance (gs) reached 28.39 mmol CO2 m−2 s−1 at the same treatment. A strongly positive correlation was found between chl-a FPs and net photosynthetic yield. Enzymatic activities, including catalase (CAT) at 2.17 unit mg−1, superoxide dismutase (SOD) at 1.05 unit mg−1 and peroxidase (POD) at 1.50 unit mg−1 were significantly enhanced, along with leaf potassium (K) (14.3 mg g−1 dry weight [DW]) and calcium (Ca) (6.7 mg g−1 DW), particularly in GH-Mubarak. Seed-cotton yield (SCY) increased to 5274 kg h−1 and fibre strength (FS) improved to 31.3 thousand pounds per square inch (tppsi), while ginning out-turn (GOT) reached a maximum of 45% at 1.5% KNO3 for 20 h in both genotypes. The micronaire value (4 μg in.−2) significantly decreased, indicating improved fibre fineness. Correlation analysis revealed a strong positive correlation between physicochemical and agronomic traits, particularly gas exchange characteristics, chlorophyll content and Chl-a FPs, which are strongly associated with SCY and fibre characteristics. In conclusion, priming cotton seeds with 1.5% KNO3 for 20 h is a promising strategy for mitigating salinity stress and enhancing physicochemical attributes and agronomic traits, ultimately leading to improved cotton yield and fibre quality.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Agronomy and Crop Science
Journal of Agronomy and Crop Science 农林科学-农艺学
CiteScore
8.20
自引率
5.70%
发文量
54
审稿时长
7.8 months
期刊介绍: The effects of stress on crop production of agricultural cultivated plants will grow to paramount importance in the 21st century, and the Journal of Agronomy and Crop Science aims to assist in understanding these challenges. In this context, stress refers to extreme conditions under which crops and forages grow. The journal publishes original papers and reviews on the general and special science of abiotic plant stress. Specific topics include: drought, including water-use efficiency, such as salinity, alkaline and acidic stress, extreme temperatures since heat, cold and chilling stress limit the cultivation of crops, flooding and oxidative stress, and means of restricting them. Special attention is on research which have the topic of narrowing the yield gap. The Journal will give preference to field research and studies on plant stress highlighting these subsections. Particular regard is given to application-oriented basic research and applied research. The application of the scientific principles of agricultural crop experimentation is an essential prerequisite for the publication. Studies based on field experiments must show that they have been repeated (at least three times) on the same organism or have been conducted on several different varieties.
期刊最新文献
Progress in Agronomic Crops Lodging Resistance and Prevention: A Review Effect of KNO3-Priming on Agronomic, Physicochemical and Fibre Attributes of Cotton (Gossypium hirsutum L.) Under Saline Conditions Foliar Application of Plant Growth Regulators Enhances Drought Tolerance by Modulating Growth and Biochemical Responses in Sugarcane Varieties Soil Mulching Practices Increased Grain-Filling Capacity of Rainfed Maize (Zea mays L.) by Improving Soil Hydrothermal Condition and Leaf Photosynthetic Potential Synergistic Effects of Irrigation and Nitrogen Fertilisation on Maize Photosynthetic Performance and Yield of Rainfed Systems in Drought-Prone Environments
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1