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Khan, Asif Ali; Rao, Sajjad Ali; McNeilly, T.

doi:10.1023/a:1023054706489

Cited by 46 publications

(14 citation statements)

References 24 publications

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“…Therefore, mass screening of maize genotypes is often used to identify salt-tolerant germplasm for breeding programs to develop better-performing genotypes for salt-prone areas. Quick screenings for salt resistance on the basis of some agronomic traits during early growth stages of maize are often deemed valuable (Khan et al 2003;Eker et al 2006).…”

Section: Selection and Breeding Approachesmentioning

confidence: 99%

Salt stress in maize: effects, resistance mechanisms, and management. A review

Farooq

Hussain

Wakeel

et al. 2015

Agron. Sustain. Dev.

590

383

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Maize is grown under a wide spectrum of soil and climatic conditions. Maize is moderately sensitive to salt stress; therefore, soil salinity is a serious threat to its production worldwide. Understanding maize response to salt stress and resistance mechanisms and overviewing management options may help to devise strategies for improved maize performance in saline environments. Here, we reviewed the effects, resistance mechanisms, and management of salt stress in maize. Our main conclusions are as follows: (1) germination and stand establishment are more sensitive to salt stress than later developmental stages. (2) High rhizosphere sodium and chloride decrease plant uptake of nitrogen, potassium, calcium, magnesium, and iron. (3) Reduced grain weight and number are responsible for low grain yield in maize under salt stress. Sink limitations and reduced acid invertase activity in developing grains is responsible for poor kernel setting under salt stress. (4) Exclusion of excessive sodium or its compartmentation into vacuoles is an important adaptive strategy for maize under salt stress. (5) Apoplastic acidification, required for cell wall extensibility, is an important indicator of salt resistance, but not essential for better maize growth under salt stress. (6) Upregulation of antioxidant defense genes and β-expansin proteins is important for salt resistance in maize. (7) Arbuscular mycorrhizal fungi improve salt resistance in maize due to better plant nutrient availability. (8) Seed priming is an effective approach for improving maize germination under salt stress. (9) Integration of screening, breeding and ion homeostasis mechanisms into a functional paradigm for the whole plant may help to enhance salt resistance in maize.

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Section: Selection and Breeding Approachesmentioning

confidence: 99%

Salt stress in maize: effects, resistance mechanisms, and management. A review

Farooq

Hussain

Wakeel

et al. 2015

Agron. Sustain. Dev.

590

383

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“…Salinity is defined as the amassment of water-soluble salts in the top layer of soil to a level that drastically affects crop production (Rengasamy, 2002). Salinization of soils is one of the serious problems for irrigated agriculture, and the situation is most severe in tropical regions (Khan et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Ions of sodium (Na + ) and chlorine (Cl − ) (>40 mmol/L) can be toxic to plants at levels that result in an imbalance in plant nutrition due to decreased nutrient uptake and transport to new shoots (Cramer, 2003;Tester and Davenport, 2003;Munns and Tester, 2008). High salinity modifies plant metabolisms, which results in altered plant morphology; cultivar type, duration, and intensity of stress determine the extent of morphological modification (Khan et al, 2003;Munns and James, 2003). The excess salt can cause decreased seed germination, seedling growth, and dry matter production (Nautiyal et al, 1989;Singh et al, 1989;Janila et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Effective screening protocols depend on an understanding of the response mechanism at different plant growth stages under saline conditions. Knowledge about these mechanisms assists breeders in looking for plants of economic importance with improved salt tolerance (Flowers and Yeo, 1995;Khan et al, 2003). Okra pod yield is a function of physiological and agronomic characters acting singly or in interaction with each other (Adeniji and Peter, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny

Haq¹,

Khan²,

Khan³

et al. 2012

J. Zhejiang Univ. Sci. B

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“…Seed lipids during germination break down in order for supplying sugars in soluble forms in the metabolism of the growing embryo (Kochak-Zadeh et al, 2013). Several studies have been undertaken to understand the mechanism of tolerance to salinity in maize and other crops (Tester and Davenport, 2003, Datta et al , 2009, Khan et al, 2003, Nordquist et al, 1992. The effects of salinity on plant growth are associated with osmotic ion and oxidative stress.…”

Section: Introductionmentioning

confidence: 99%

Effects of Salinity on Seedling Growth of Four Maize (Zea Mays L.) Cultivars Under Hydroponics

Bose¹,

Hossain²

2018

JAS

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Growth and development of a crop or even cultivars within a species of a crop respond to soil salinity since germination. A hydroponic experiment was conducted at Plant Physiology Laboratory, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh, during the period from December 2015 to July 2016 to investigate the effect of NaCl on morphological characters and growth of maize (Zea mays L.) seedlings. The experiment comprised two levels (0 dS m-1 and 8 dS m-1) of salinity for hydroponic experiment, designed in two factorials Complete Randomized Design (CRD) with three replications on four cultivars viz. Kaveri - 244+, BHARAT Hybrid Sultan 702, Getco seeds GP – 901, Essence –Platinum. Results indicated that root and shoot length, number of leaves plant-1, fresh and dry mass production varied with NaCl stress which indicating that some cultivars of maize seedlings are highly susceptible to concentrated NaCl. However, among tested cultivars, Essence –Platinum showed the best performance considering the seedlings growth and other parameters. BHARAT Hybrid Sultan 702, Getco seeds GP – 901 showed the highest sensitivity to NaCl stress in this experiment based on the above parameters studied.

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Untitled

Cited by 46 publications

References 24 publications

Salt stress in maize: effects, resistance mechanisms, and management. A review

Salt stress in maize: effects, resistance mechanisms, and management. A review

Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny

Effects of Salinity on Seedling Growth of Four Maize (Zea Mays L.) Cultivars Under Hydroponics

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