نتایج جستجو برای: physiology of seeds

تعداد نتایج: 21170891  

Journal: :Journal of Experimental Botany 2008
Sebastián Jasid Marcela Simontacchi Susana Puntarulo

Sodium nitroprusside (SNP) and diethylenetriamine NONOate (DETA NONOate), were used as the source of exogenous NO to study the effect of NO upon germination of sorghum (Sorghum bicolor (L.) Moench) seeds through its possible interaction with iron. Modulation of cellular Fe status could be an important factor for the establishment of oxidative stress and the regulation of plant physiology. Fresh...

Journal: :iranian journal of public health 0
b.tavasolian a.phaghfori

the oil and protein content of three varieties of water melon seeds namely, chillian black, dixy queen and charlston gray were determined. the soluble proteins were studied and measured by paper chromatography and amino acid analyzer. the results indicated that oil content of the seeds was 43, 53 and 45% and protein content was 27, 23, and 34% respectively. the soluble proteins contained all th...

Introduction: The cases of misconceptions are intellectual models of phenomena that are different from accepted scientific models of the same phenomena. The purpose of this study was to investigate the prevalence of cardiovascular misconceptions among students, and evaluate the role of cardiovascular physiology courses in eliminating them. Methods: This descriptive study was performed on 348 u...

In recent years, many research studies have been conducted on the effects of magnetic field on plants. But certain mechanisms regarding magnetic influences have not been defined yet. In this study, effects of magnetic fields (MF) on the growth parameters and enzyme activities of Helianthus annuus L. were investigated. Sterilized seeds in sterile conditions were exposed to 0, 0.5, 1 and 1.5 mT o...

2005
Birgit Kucera Marc Alan Cohn Gerhard Leubner-Metzger

This review focuses mainly on eudicot seeds, and on the interactions between abscisic acid (ABA), gibberellins (GA), ethylene, brassinosteroids (BR), auxin and cytokinins in regulating the interconnected molecular processes that control dormancy release and germination. Signal transduction pathways, mediated by environmental and hormonal signals, regulate gene expression in seeds. Seed dormancy...

2011

Concepts of post harvest physiology and produce storage. Types of produce fruits, vegetables, seeds, grains, spices, roots, tubers, ornamentals, etc. Effect of environment such as climate, soil, pests and diseases on crop growth, maturity indices. Pre-harvest cultural management such as nutrient appropriateness, adequacy of control of pests and diseases, timeliness of farm operation including w...

Journal: :Plant & cell physiology 2010
Daniela Kramer Björn Breitenstein Maik Kleinwächter Dirk Selmar

In order to produce tradeable standard green coffee, processed beans must be dried. The drying procedure affects the abundance of relevant aroma substances, e.g. carbohydrates. Using molecular tools, the corresponding metabolic basis is analyzed. A decrease in water potential of the still living coffee seeds induces massive drought stress responses. As a marker for these stress reactions, accum...

Journal: :Journal of experimental botany 2007
Lester W Young Christopher Parham Zhong Zhong Dean Chapman Martin J T Reaney

Techniques that make possible the non-destructive continuous observation of plant anatomy and developmental processes provide novel insights into these phenomena. Non-destructive imaging of seeds was demonstrated using the synchrotron-based X-ray imaging technique, diffraction enhanced imaging (DEI). The seed images obtained had good contrast and definition, allowing anatomical structures and p...

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