Influence of temperature on grain crop emergence is reviewed. The results of numerical experiment of agrometeorological factors influence modeling on water imbibition of seed and coleoptile elongation are represented.
Review of existing grain crop grow models of period from sowing to germination and the algorithm of developed dynamic model that describes the physiological and biochemical processes occurring in seeds during the period are discussed. The structure and the scheme of the model were described in details.
Review of existing grain crop grow models of period from sowing to germination and the algorithm of developed dynamic model that describes the physiological and biochemical processes occurring in seeds during the period are discussed. The structure and the scheme of the model were described in details.
The longperiods dynamic pattern of growth of general dry biomass of agricultural cultures is offered, in a basis which the equalization of logistic curve, based on supposition about the swaying processes of biological time of plants in ontogenesis, lies to. The period of vibrations of biological time and amplitude of vibrations are wholly and fully determined by tension of factors of external environment. Research of model is conducted and positive estimation of its adequacy is got to the real object of researches. It is accounted for the fact of parabolic dependence of growth of biomass from the state of tension of factors of external environment. Differential equalization of vibrations of biological time in ontogenesis of plants is given.
Influence of environment factors on processes of photosynthesis, breath, growth of winter wheat is modeled. Growth of the main thing and lateral shoots is considered.
In work, on the basis of the analysis of a logistical curve of growth of plants communication between processes of current of biological time and gas exchange of plants is given. It is considered, that gas exchange of plants depends on set of factors of an environment. The numerical experiments, giving concrete values of communication of photosynthesis, breath and an axis of biological time are lead
Development of the plant is considered as process of realization programmed in genome changes functional and morphogenetic activity. Development is determined by conditions of an environment.
Numerical computation of sunflower development rate subject to the factors of light, warmth and moisture is given analysis in the paper. The suggested computation of the development rate could be used at making prognoses for onset of phenological phases of development of crops, and currently can be used at computations of biological time axis in dynamic models for productional process of plants.