Dry Matter Production and Seed Yield of Soybean as Affected by Post-Flowering Salinity and Water Stress

Khan, M. A.; Chowdhury, JA; Razzaque, Mohammed Abdur; Ali, MZ; Paul, SK; Aziz, M. A.

doi:10.3329/baj.v19i2.31849

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…imbricata decreased the Na + uptake with increasing the drought stress at the highest salinity level (20 dS m −1 ). Studies carried out to evaluate the combined effects of salt and drought stress are in line with our findings (Martínez et al, 2005 ; Slama et al, 2008 ; Khalid and Cai, 2011 ; Khan et al, 2017a , b ). Under saline conditions, Na + in the growth medium might compete with K + in the low absorption by the roots (Blumwald, 2000 ).…”

Section: Discussionsupporting

confidence: 89%

Exploring Suitability of Salsola imbricata (Fetid Saltwort) for Salinity and Drought Conditions: A Step Toward Sustainable Landscaping Under Changing Climate

et al. 2022

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In context of the climate change, major abiotic stresses faced by plants include salt stress and drought stress. Though, plants have similar physiological mechanisms to cope with these salt and drought stresses. The physiological and biochemical response of native plants to the combined application of salinity and drought stresses are still not well-understood. Thus, to investigate the combined effect of salinity and drought stresses, an experiment was conducted on Salsola imbricata with four levels of salinity and four drought intensities under the arid climatic conditions. The experiment was conducted in a randomized complete block design with a split-plot arrangement replicated three times. S. imbricata had been found resistant to different levels of individual and combined salt and drought stresses. S. imbricata survived till the end of the experiment. Salt and water stress did not show any significant effects on shoot weight, shoot length, and root length. The drought stress affected the photosynthetic rate, ion uptake and leaf water potential. However, salt stress helped to counter this effect of drought stress. Thus, drought stress did not affect plant growth, photosynthesis rate, and ion uptake when combined with salt stress. Increased Na+ and Cl− uptake under the salt stress helped in osmotic adjustment. Therefore, the leaf water potential (LWP) decreased with increasing the salt stress from 5 dSm−1 until 15 dSm−1 and increased again at 20 dSm−1. At lower salt stress, ABA and proline content declined with increasing the drought stress. However, at higher salt stress, ABA content increased with increasing the drought stress. In conclusion, the salt stress had been found to have a protective role to drought stress for S. imbricata. S. imbricata utilized inorganic ion for osmotic adjustment at lower salinity stress but also accumulate the organic solutes to balance the osmotic pressure of the ions in the vacuole under combined stress conditions. Due to the physical lush green appearance and less maintenance requirements, S. imbricata can be recommended as a native substitute in landscaping under the salt and drought stresses conditions.

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Section: Discussionsupporting

confidence: 89%

Exploring Suitability of Salsola imbricata (Fetid Saltwort) for Salinity and Drought Conditions: A Step Toward Sustainable Landscaping Under Changing Climate

et al. 2022

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“…Result similar to our experiment for decreased RDW under water stress as compared to salt stress are reported by Wang et al (2011) for tamarisk ( Tamarix chinensis Lour), Yagmur and Kaydan (2008) for triticale ( Triticosecale Witm., cv. Presto), Khan et al (2017) for soybean and, Miranda-Apodaca et al (2018) for Quinoa ( Chenopodium quinoa ).…”

Section: Discussionmentioning

confidence: 99%

Evaluating the resistance mechanism of Atriplex leucoclada (Orache) to salt and water stress; A potential crop for biosaline agriculture

Alam

Zamin²,

Adnan³

et al. 2022

Front. Plant Sci.

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The development of food and forage crops that flourish under saline conditions may be a prospective avenue for mitigating the impacts of climate change, both allowing biomass production under conditions of water-deficit and potentially expanding land-use to hitherto non-arable zones. Here, we examine responses of the native halophytic shrub Atriplex leucoclada to salt and drought stress using a factorial design, with four levels of salinity and four drought intensities under the arid conditions. A. leucoclada plants exhibited morphological and physiological adaptation to salt and water stress which had little effect on survival or growth. Under low salinity stress, water stress decreased the root length of A. leucoclada; in contrast, under highly saline conditions root length increased. Plant tissue total nitrogen, phosphorus and potassium content decreased with increasing water stress under low salinity. As salt stress increased, detrimental effects of water deficit diminished. We found that both salt and water stress had increased Na+ and Cl– uptake, with both stresses having an additive and beneficial role in increasing ABA and proline content. We conclude that A. leucoclada accumulates high salt concentrations in its cellular vacuoles as a salinity resistance mechanism; this salt accumulation then becomes conducive to mitigation of water stress. Application of these mechanisms to other crops may improve tolerance and producitivity under salt and water stress, potentially improving food security.

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“…A indisponibilidade de água nessa fase pode implicar que a semente não complete o processo de germinação, ou pode completar, porém de forma mais lenta e desuniforme entre as plântulas, comprometendo as fases posteriores do desenvolvimento (Khan et al, 2016;Souza et al, 2014). Em solos com saturação hídrica, a rápida entrada de água em sementes com baixo grau de umidade pode causar danos à membrana celular, prejudicando o processo germinativo, reduzindo a emergência das plântulas e o estande no campo (Kappes et al, 2010).…”

Section: Introductionunclassified

Estresse hídrico na qualidade fisiológica de sementes de soja tratadas com tiametoxam e polímeros

Ludwig,

Nunes,

Santos

et al. 2023

RSD

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O objetivo do presente trabalho foi avaliar as respostas fisiológicas em sementes de soja com distintos níveis de vigor tratadas com polímeros e tiametoxam submetidas a déficit hídrico simulado. Foram utilizados dois lotes de sementes de soja da cultivar Nidera NA5909, em que a diferenciação ocorreu pelo seu nível de vigor. Para realização do tratamento de sementes foi utilizado o produto comercial Cruizer 350FS, devido ao seu ingrediente ativo tiametoxam possuir a propriedade bioativadora e foram utilizados os polímeros Laborsan e Likoseed. A condição de estresse hídrico simulado foi realizada de duas formas, em rolos de papel germitest, a qual foi realizada utilizando soluções de polietileno glicol (PEG 6000) e em bandejas de PVC, contendo areia e diferentes níveis de saturação hídrica. A avaliação da qualidade fisiológica foi realizada por meio dos testes de germinação, primeira contagem de germinação, comprimento e massa seca de plântulas. Concluiu-se que para ambos os lotes tanto o estresse hídrico simulado em rolos de papel como em areia, houve redução do desempenho fisiológico das sementes e que a molécula tiametoxam associada ou não a polímeros proporcionou melhor desenvolvimento em plântulas de soja de baixo vigor quando submetidas a estresse hídrico.

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Dry Matter Production and Seed Yield of Soybean as Affected by Post-Flowering Salinity and Water Stress

Cited by 11 publications

References 5 publications

Exploring Suitability of Salsola imbricata (Fetid Saltwort) for Salinity and Drought Conditions: A Step Toward Sustainable Landscaping Under Changing Climate

Exploring Suitability of Salsola imbricata (Fetid Saltwort) for Salinity and Drought Conditions: A Step Toward Sustainable Landscaping Under Changing Climate

Evaluating the resistance mechanism of Atriplex leucoclada (Orache) to salt and water stress; A potential crop for biosaline agriculture

Estresse hídrico na qualidade fisiológica de sementes de soja tratadas com tiametoxam e polímeros

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