منابع مشابه
Essential trace elements for plants, animals and humans
A field trial, a pot experiment and a survey in organically farmed leys were undertaken to investigate whether the N-fixation in red clover pastures in Norway was limited by a low supply of Co and/or Mo. Fertilization with Mo did not cause any higher production nor Nfixation, whereas the N-yield both from established clover leys and red clover grown in pots increased slightly after application ...
متن کاملTransposable elements as sources of variation in animals and plants.
A tremendous wealth of data is accumulating on the variety and distribution of transposable elements (TEs) in natural populations. There is little doubt that TEs provide new genetic variation on a scale, and with a degree of sophistication, previously unimagined. There are many examples of mutations and other types of genetic variation associated with the activity of mobile elements. Mutant phe...
متن کاملDiversity of Plants and Animals in Mountain Ecosystems in Tajikistan
Tajikistan is a hotspot of plant and animal species diversity and endemism andis important for the conservation of biodiversity on a global scale. The country is located ata biological crossroads. Species from Central and Northern Europe, Central Asia, theMiddle East, and North Africa mingle here with endemics found nowhere else. Therichness of Tajikistan‘s biodiversity shows up at the genetic,...
متن کاملSignificant Roles of Trace Elements in the Nutrition of Plants.
During the past quarter of a century much has been written concerning the place of the so-called trace elements in the economy of plant life. Most of this literature deals with the effects produced upon plants when these elements are absent from the growth substrate and is purely descriptive in nature, portraying the symptoms of deficiency. There is also, in the phvsiological literature of the ...
متن کاملEvaluation of Biochemical Contents, Trace Elements, Nutritive Value and HPTLC Profiling in Two Edible Food Plants Based Diets
Background and Objectives: The present study was conducted to evaluate the presence of biochemical contents and trace elements, and detect phytochemicals in the edible part extracts of Asparagus officinalis DC and Chlorophytum comosum Linn by HPTLC. Materials and Methods: The biochemical contents and trace elements were determined by different biochemical methods, and trace elements’ presence ...
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ژورنال
عنوان ژورنال: Nature
سال: 1946
ISSN: 0028-0836,1476-4687
DOI: 10.1038/158397b0