Population Studies of<i>Limonium stocksii</i>(Plumbaginacea) from a Salt Desert Near the Arabian Sea Coast

Zia, Sabahat; Egan, Todd P.; Khan, M. Ajmal

doi:10.1080/00103620701548514

Cited by 7 publications

(2 citation statements)

References 25 publications

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“…The seed collection site has a subtropical summer monsoon climate. The soil type was mainly sandy with soil electrical conductivity and moisture ranging from 55 to 191 dS/m and from 1.6% to 9.5%, respectively (Zia et al, 2007). This site had uneven topography and was dominated by perennial euhalophytic vegetation.…”

Section: Habitat and Collection Of Seedsmentioning

confidence: 99%

Maternal salinity improves yield, size and stress tolerance of Suaeda fruticosa seeds

et al. 2020

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Shrubby seablite or lani (Suaeda fruticosa Forssk) is a perennial euhalophyte with succulent leaves, which could be planted on arid-saline lands for restoration and cultivated as a non-conventional edible or cash crop. Knowledge about the impacts of maternal saline environment on seed attributes of this important euhalophyte is lacking. This study investigated the effects of maternal salinity on yield, size and stress tolerance of S. fruticosa seeds. Seedlings of S. fruticosa were grown in a green net house under increasing maternal salinity levels (0, 300, 600 and 900 mM NaCl) until seed production. Total yield, size, stress tolerance and germination of the descended seeds under different maternal saline conditions were examined. Plants grown under saline conditions (300, 600 and 900 mM NaCl) produce a substantially higher quantity of seeds than plants grown under non-saline condition (0 mM NaCl). Low maternal salinity (300 mM NaCl) improves seed size. Seeds produced under all maternal salinity levels display a higher tolerance to low temperature (night/day thermoperiod of 10°C/20°C), whereas seeds produced under 300 mM NaCl maternal saline condition show a better tolerance to high temperature (night/day thermoperiod of 25°C/35°C) during germination. Seeds from all maternal saline conditions germinate better in the 12 h photoperiod (12 h light/12 h dark) than in the dark (24 h dark); however, seeds produced from low and moderate maternal saline conditions (300 and 600 mM NaCl) show a higher germination in the dark than those from control and high maternal saline conditions (0 and 900 mM NaCl). In general, maternal salinity is found to improve yield, size and stress tolerance of S. fruticosa seeds.

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Section: Habitat and Collection Of Seedsmentioning

confidence: 99%

Maternal salinity improves yield, size and stress tolerance of Suaeda fruticosa seeds

et al. 2020

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“…In arid environments, plant populations are mainly affected by multiple stresses simultaneously, and especially drought and salinity, which cause significant reductions in crop yield (Zia et al, 2007;Tariq et al, 2009). In this scenario, biotechnology has proven to be an excellent tool to fulfill the food demand in diverse and extreme environments.…”

Section: Introductionmentioning

confidence: 99%

Field assessment of CaMsrB2 transgenic lines in a drought stress environment

Siddiqui¹,

Cho²,

Park³

et al. 2015

Turk J Bot

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Two drought-tolerant transgenic rice lines, L-8 (single copy) and L-23 (two copy), expressing the Capsicum annuum methionine sulfoxide reductase B2 (CaMsrB2) gene were selected for stress tolerance phenotyping under drought stress conditions. The two transgenic lines were selected on the basis of laboratory experiments and for performing well against drought. Field assessment of CaMsrB2 transgenic lines L-23 and L-8 in a drought stress environment was conducted. For the assessments, small plots were prepared at the Department of Botany of the University of Karachi to test the physiological response of transgenic lines. Relative water content, quantum yield (Fv/Fm ratio), photochemical quenching (qP) photosynthetic pigments, and performance index were high in transgenic lines compared to the wild type (WT). Antioxidant enzymes as represented by catalase and superoxide dismutase activities were increased while H 2 O 2 production was decreased in transgenic lines compared to the WT. The results are discussed with special reference to physiological response of the transgenic lines against drought in field conditions.

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