Seed and salinity

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Seed and salinity

Baskin Find articles by Jerry M. For Permissions, please email: Abstract Background and Aims The small leafy succulent shrub Halocnemum strobilaceum occurs in saline habitats from northern Africa and Mediterranean Europe to western Asia, and it is a dominant species in salt deserts such as those of north-west China.

Seeds that did not germinate in the NaCl solutions were tested for germination in deionized water.

Introduction

Seeds from which radicles had barely emerged in deionized water were transferred to NaCl solutions for 10 d and then back to deionized water for 10 d to test for radicle growth and recovery. Key Results Seeds germinated to higher percentages in light than in darkness and at high than at low temperatures.

Seeds that did not germinate in NaCl solutions did so after transfer to deionized water. Conclusions The seed and early seedling growth stages of the life cycle of H.

Halophytes can grow and complete their life cycle in saline environments, whereas glycophytes cannot Ungar, The responses of seeds of halophytes to salt differ from those of non-halophytes. Thus, compared with glycophytes, seeds of halophytes germinate at higher salinities, and they maintain viability even under extreme salinity or osmotic stress, recovering and germinating when the water potential of the medium increases Ungar, Germination of halophytes in the field is controlled by several environmental factors, in particular light Gutterman, ; Huang and Gutterman,atemperature Badger and Ungar, and salinity Ungar, ; Khan et al.

Seeds of four species required light for germination, four germinated to higher percentages in light than in dark, 13 germinated equally well in light and dark, and two germinated to higher percentages in dark than in light.

Halophyte species vary in their tolerance to salinity during seed germination Ungar, ; Khan et al. Seeds of halophytes can recover the capacity to germinate after exposure to salt stress that inhibits their germination Woodell, Further, following pre-treatment of seeds of halophytes with salt solutions, the rate and percentage of germination often increase after they are transferred to fresh water Katembe et al.

Halocnemum strobilaceum Chenopodiaceae occurs in saline habitats from northern Africa and Mediterranean Europe to western Asia Liu, In China, this species is distributed mainly in the north-west provinces of Xinjiang and Gansu.

It is an ecologically important semi-shrub in saline soils on the plain in front of the south slopes of Tianshan Mountain, Xinjiang. In this area, H. In highly saline patches or on shores of salt lakes, H.

In slightly saline habitats, it is commonly found in association with other species such as Halostachys caspica ChenopodiaceaeTamarix hispida, T. They can even survive in soil covered by a 5—10 cm layer of salt crust Wu, Although the effect of salinity on seed germination of H.

Most importantly, different ecotypes of the same species occurring in different habitats may have different adaptation strategies to the special environmental conditions during seed germination and seedling growth in their local sites. To this end, the present study investigated the seed germination ecophysiology of H.

The embryo is fully developed and located in a peripheral position, rarely encircling the endosperm. Thus, the type of seed produced by H.

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Mature seeds were collected in Novemberfrom plants of H. This area is a temperate inland desert in the hinterland of the Eurasian continent.

The site has typical desert vegetation, alkali-saline grey desert soil and a continental climate. Salts accumulate on the soil surface in the dry season; however, salt concentration is diluted by water from melting snow in spring and by rain in summer Li, Soil samples collected from ten randomly chosen areas within the study population of H.

Seed and salinity

Another reason for considering only NaCl is that apparently it is the major component of salinity in the deserts of north-west China Fan et al. Seeds were incubated in 50 mm diameter Petri dishes on three layers of Whatman No. Petri dishes were sealed by plastic film to prevent evaporation.Effects of NaCl Salinity on Wheat (Triticum aestivum L.) Cultivars 1Mujeeb-ur-Rahman, 1Umed Ali Soomro, Salinity treatments measuring 1 = Initial weight of seed W 2 = Weight of seed after absorbing water in a particular time.

Seed and salinity

The present study was designed to study the effect of salinity on seed [13] germination, seedling growth and acid phosphatase activities in Romaine and Vista.

These two varieties were Effect of Salinity on Germination, Seedling Growth and Acid Phosphatase Activity in Lettuce Acid Phosphatase, Germination, Lettuce, Salinity, Seedling.

Jan 17,  · Science Project: How Does Salt Affect Seed Germination? Updated on June 8, Virginia Kearney. more. VirginiaLynne is an educator and mom of 5.

Her Science Fair articles are based on her experience helping her children do their projects. Salinity and Crops Science. The amount of salt in soil is a major problem for growers.

| Source Reviews: Apr 11,  · The small leafy succulent shrub Halocnemum strobilaceum occurs in saline habitats from northern Africa and Mediterranean Europe to western Asia, and it is a dominant species in salt deserts such as those of north-west China.

The effects of temperature, light/darkness and NaCl salinity were tested on seed germination, and the effects. Bringing the best Salad & Bowls to Calgary. Incredible taste, fun environment and experience.

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Best producers and all about Community & KindnessLocation: 4 Street Southwest Calgary, AB, T2S Canada. Dec 08,  · Effect of salinity on tomato (Lycopersicon esculentum Mill.) during seed germination stage Jogendra Singh, E.

V. Divakar Sastry, and Vijayata Singh Central Soil Salinity Research Institute, Karnal, Haryana India.

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