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20 wrz 2010 · In the absence of a clear definition of plant stress, we relate concepts from physics, medicine and psychology to stresses that are specific to seeds. Potential ‘eustresses’ that enhance function and ‘distresses’ that have harmful effects are considered in relation to the seed life cycle.
Defining plant behaviour. The life cycle goal of any individual plant is optimal fitness, usually equated to maximum numbers of viable seedlings or more conveniently, for experimental purposes, the numbers of seeds.
In the absence of a clear definition of plant stress, we relate concepts from physics, medicine and psychology to stresses that are specific to seeds. Potential 'eustresses' that enhance function and 'distresses' that have harmful effects are considered in relation to the seed life cycle.
1 cze 2010 · THE CAPACITY OF SEEDS TO GERMINATE AND SURVIVE. The past few years have seen a marked increase in the number of papers on seed science that are received for publication in Annals of Botany, from under ten per year to over 40, resulting in 44 papers on seeds published in the last two years.
Basic seed morphology. Seeds have three main functions: Propagation of the plant. This is accomplished by the embryo, which is the nascent (new, young) plant resulting from the combination of genes from the male sperm, transmitted by the pollen, to the female egg, held in an ovule in the ovary.
27 lip 2022 · Seed — a living plant in a quiescent state. In the ovary, within the ovule, after egg and sperm unite to form the zygote, the zygote cell repeatedly divides and develops into an embryo. The embryo differentiates into different structures — plumule, radicle, cotyledon(s), and the endosperm, seed coat, or pericarp develop.
1 sty 2014 · This book (11 chapters) presents an overview of seed ecophysiology and its role in shaping plant communities. Updated information on frugivory, seed dispersal, seed predation, light-mediated ...
