Germination is complex process during which the seed must quickly recover physically from maturation drying resume a sustained intensity of metabolism, complete essential cellular events to allow for the embryo to emerge, and prepare a subsequent seeding growth. Legumes consumed after processing and germination are most economical food. This process is also an appropriate low cost low technolog...

Seeds from natural populations of fierce thornapple and velvetleaf collected in a corn-growing area in central Spain were incubated at a range of constant temperatures and water potentials to model the progress of germination on the basis of the accumulation of hydrothermal time. Previous to the germination tests, the seeds were treated in two different ways: (1) dark storage under dry conditio...

Actually, the germplasm of Jatropha spp. is conserved as whole plants in field collections. Under this storage method, the genetic resources are exposed to disease, pest and natural hazards such as human error, drought and weather damage. Besides, field genebanks are costly to maintain and with important requirements of trained personnel. Thus, the development of efficient techniques to ensure ...

A barley (Hordeum vulgare L.) cDNA, PM19, encoding a putative plasma membrane protein was isolated through differential screening of a dormant wild oat embryo library. PM19 is expressed in barley embryos from mid-embryogenesis up to maturity. PM19 mRNA levels decline upon germination, whereas dormant embryos retained high levels of message for up to 72 h of imbibition. PM19 mRNA levels also rem...

The endo-β-mannanase (MAN) family is represented in the Arabidopsis genome by eight members, all with canonical signal peptides and only half of them being expressed in germinating seeds. The transcripts of these genes were localized in the radicle and micropylar endosperm (ME) before radicle protrusion and this expression disappears as soon as the endosperm is broken by the emerging radicle ti...

BACKGROUND AND AIMS Phylogenetic clustering of species within plant communities can be expected to result from environmental filtering acting on an evolutionary-conserved plant trait. One such a candidate trait is the embryo to seed-size ratio (E:S). A high E:S may allow faster germination immediately after imbibition, and is therefore assumed to be advantageous in dry habitats. In this study t...

Abscisic acid (ABA) mediates plant responses to environmental stress, particularly to water status. During germination, the embryo emerges from dormancy as the ABA concentration declines. Exposure to exogenous ABA during germination arrests development rapidly, but reversibly, enabling seedlings to withstand early water stress without loss of viability. Postgermination proteolytic degradation o...

Wedelia trilobata is an invasive weed of the family Asteraceae.Objective study was to find out impact essential oil on germination and seedling growth cowpea. Different concentrations oil(200, 400, 600, 800 1000ppm) were used,a controlwas kept without oil. Cowpea seeds sown in these petriplates,at end test period all parameters measured. All showed that treatment had no negative germination. Wh...

The timing of seed germination significantly affects the fitness and life cycle plants. Torilis scabra is a perennial medicinal herb occurring in mixed forests but increasing use modification forestlands recent decades has led to degeneration its natural habitat. Nonetheless, requirements for T. remain unclear. present study focused on identifying conditions necessary break dormancy describing ...

The expression of lipoxygenases (LOXs) is known to be developmentally regulated in soybeans (Glycine max. [L.] Merr.). Hormones have been firmly established as being involved in the growth and developmental processes of a number of plant species. Correlation between the expression of LOXs and the development and germination of soybean embryos suggests that plant hormones may affect the expressi...