搜索结果: 1-10 共查到“农业生物物理学 variability”相关记录10条 . 查询时间(0.25 秒)
Influence of laser beams combined with chemomutagen (MNU) on the variability of traits and mutation frequency in spring barley
combined treatment barley biostimulation mutation laser N-methyl-N-nitrosourea
2008/11/24
Laser light as a pure ecological factor started to be used as a plant biostimulator. It is especially important in the case of short exposures to laser light. However, prolongation of irradiation indu...
Estimation of genetic variability of yielding traits and physical properties of seedsof spring barley (Hordeum vulgare L.) mutants
hull-less barley geometric properties resistance to squashing mutants yield structure
2008/11/19
The material for performed studies comprised 19 hull-less barley mutants, their initial form 1N/86, as well as six hul- led forms – three fodder and three malting cultivars. In field trial the mutants...
Influence of laser beams on the variability of traitsin spring barley
barley chlorophyll mutants laser mutants mutations variability yield structure
2008/11/18
Laser is one of the sources for inducing a biostimulation effect and genetic changes in higher plants. Lower doses of laser activate plants, resulting in increasing bioenergetical potential of the ce...
Influence of magnetic field with chemomutagen and gamma rays on the variability of yielding parameters in barley (hordeum vulgare L.)
biological injuries biostimulation magnetic field mutagens spring barley
2008/11/18
The goal of performed investigations was estimation of magnetic field, chemomutagen and gamma rays influence on the level of biological injuries of M1 barley plants, expressed by variation of yield st...
Soil moisture and bulk electrical conductivity variability measured by TDR
TDR water content measurement soil heterogeneity random field parameters
2008/11/11
The result of numerous TDR measurements of heterogeneous soil water content are shown. Some statistical parameters of measured water content and bulk electrical conductivity fields are calculated. TDR...
Spatial variability of soil moisture as information on variability of selected physical properties of soil
soil moisture soil bulk density infiltration rate TDR technique
2008/11/11
The paper presents a method for the estimation of variability of soil bulk density and of variability of infiltration rate on the basis of easily determinable variability of soil moisture. First, the ...
Spatial variability of soil moisture in grassland
soil moisture geostatistical methods fractal analysis
2008/11/11
The paper evaluates spatial moisture variation in research sites in Poland - Pszczew (Wielkopolska Province), Pawłowice (Dolny Śląsk Province), and in Slovakia - Tatranska Kotlina. The ...
Variability in the mechanical properties of polish wheat cultivars from various regions
ihardness mechanical resistance wheat
2008/11/10
Although multi-factorial variance analysis for examined samples showed significant influence of variety and cultivation year on wheat hardness and mechanical resistance only, effect of cultivation reg...
Variability of the physico-mechanical properties of the ecotypes of nut fruits (Juglans regia L.) in Slovakia
genebank protection walnut fruit shell seed
2008/11/10
At the present time among the endangered species of plants, there exists elements of flora which can be found in Slovakia. Within the framework of the program "Protection of Endangered Genebank Plants...
Vigour variability in hybrid kernels of triticale with Aegilopsunder the influence of biostimulation
biostimulation kernel vigour triticale Aegilops
2008/11/10
The influence of a variable magnetic field of 30 mT magnetic induction and frequency f = 50 Hz, at different exposure times (8, 15, 30, 60 and 120 s), as well as an electric field of 5 kV cm-1 intensi...