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31.
The importance of raw materials supply for confectionery purposes with the high amylolitic activity is proven, the method of creation of the genotypes with high activity of a-amylase is defined in the article. The value of the variation coefficient of this characteristic by years is specified. The capability to use the raw materials of triticale varying the protein content within sufficiently wide ranges is stated. The characteristic of the triticale flour for the confectionery purpose is given. Some technological aspects of manufacturing of flour confectionery products are given. 相似文献
32.
Fomenko T. G. Popova V. P. Chernikov E. A. Makarova A. A. Yaroshenko O. V. 《Eurasian Soil Science》2022,55(9):1266-1277
Eurasian Soil Science - The impact of long-term drip irrigation of apple plantations with low-saline water on the transformation of typical chernozems (Haplic Chernozems) on the Kuban Lowland... 相似文献
33.
For 22 years (1989–2010), the productivity of alfalfa cultivars Eruslanka and Artemida were studied in terms of irrigation on chestnut soil. During fluctuation of the green mass yield of three cuttings of second year alfalfa from 16.5 and 18.4 to 74.0 and 74.8 t/ha, its nonlinear dependence on precipitation was established. The relation between winter precipitation (November-March) and the yield was not revealed. 相似文献
34.
A comparative study of the effect of drip irrigation in fruit orchards in North Caucasus on the properties of chernozem soils is carried out. During local moistening of ordinary and leached chernozems with saline water, the soil absorption complex is saturated with Na+ and Mg2+ and depleted in Ca2+; a shift of ionic equilibrium is noted mainly at places of localization of irrigation water. The effect of drip irrigation on a change in the physicochemical properties of chernozem soils in fruit orchards is determined. 相似文献
35.
Evaluating the effects of climate change in the southern Benguela upwelling system using the Atlantis modelling framework 
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下载免费PDF全文 Kelly Ortega‐Cisneros Kevern L. Cochrane Elizabeth A. Fulton Rebecca Gorton Ekaterina Popova 《Fisheries Oceanography》2018,27(5):489-503
The ocean is affected by multiple anthropogenic stressors including climate change, the effects of which are already evident in many ocean ecosystems. The ABACuS v2 end‐to‐end model together with climate projections from the NEMO‐MEDUSA 2.0 model were used to evaluate the effects of fishing, warming and horizontal and vertical mixing on the southern Benguela upwelling system. Of the drivers examined in this study, warming had the greatest effect on species biomass, with mainly negative effects. The magnitude of the impacts of warming intensified from the RCP 2.6 to the 8.5 emission scenario. Fishing negatively affected demersal and large pelagic fish, which in turn resulted in a biomass increase of forage fish due to a decrease in predation pressure. Water mixing was found to have minor indirect effects on zooplankton biomass and fish. The responses of species and species groups to the combined effects of fishing and warming were approximately equally divided between additive, synergistic and antagonistic. Interpretation of our model results suggests that the southern Benguela system is likely to be affected by climate change, including substantial changes in the abundance of some species important to the region's fisheries. Future planning for fisheries needs to take this into account, including through management that strives to maintain the resilience of key species and the system as a whole. In line with previous studies on the southern Benguela, the results reinforce the importance of including consideration of the indirect and combined impacts of climate change and fishing in management and planning. 相似文献
36.
From a biologically active extract from the fungus Fomitopsis rosea, two new lanostane triterpenes were isolated, 3α-(3′-butylcarboxyacetoxy)oxepanoquercinic acid C 1 and 3α-hydroxy-24-methylene-23-oxolanost-8-en-26-carboxylic acid 2, along with three known triterpenes, 3–5, and the epidioxy sterol derivative 6. The structures of the compounds were elucidated based on their spectral properties. All triterpenes demonstrated antibacterial activity against S. aureus but possessed no antiradical activity against DPPH radicals. 相似文献
37.
Ganka Ganeva Victor Korzun Svetlana Landjeva Zaprjanka Popova Nikolai K. Christov 《Genetic Resources and Crop Evolution》2010,57(2):273-285
The genetic diversity in a Triticum durum Desf. collection, consisting of 102 Bulgarian landraces, nine Bulgarian and 25 introduced cultivars was studied using 14
highly polymorphic microsatellite markers. A total of 100 alleles were identified, with an average of 7.14 alleles per marker.
The gene diversity values (He) of the markers for the total samples ranged from 0.23 (WMS357 and WMS631) to 0.77 (WMS46),
with an average of 0.52. Within the landraces that were collected from 18 sites in Southern Bulgaria showed 2–11 alleles per
locus with an average of 6.07. The microsatellite analysis suggests that the genetic diversity among landraces is lower compared
to the diversity levels for durum wheat in countries close to the main centers of wheat domestication. Breeding activities
have caused significant reduction of the allelic polymorphism, elimination of rare alleles, and increase in the number of
common alleles and the frequency of dominating alleles. 相似文献
38.
Research into the immune system status of bull sires is focused on finding the ways to enhance the breeding values of animals and to correct the innate resistance in the organism. The objective of the study was monitoring the immune system status indices and the correlations between them in various bull breeds. It was ascertained that there were more strong correlations between the immunological parameters in the beef bull sires compared with the dairy cattle. 相似文献
39.
Modelling for maize irrigation scheduling using long term experimental data from Plovdiv region, Bulgaria 总被引：1，自引：0，他引：1
Zornitsa Popova 《Agricultural Water Management》2011,98(4):675-683
Independent historic datasets on irrigated maize, collected over seven years (1984-1990), were used to parameterize the irrigation scheduling model ISAREG. Experimental data were obtained under rainfed, deficit, and full irrigation conditions in an alluvial soil at Tsalapitsa, Plovdiv region, in the Thracian plain, Bulgaria. Crop coefficients and depletion fractions for no-stress were calibrated by minimizing the differences between observed and simulated soil water content. The calibration was performed using data from full irrigation and rainfed treatments while deficit irrigation treatments were used for validation. The modelling efficiency was high, 0.91 for the calibration and 0.89 for the validation. The resulting average absolute errors of the estimate for the soil water content were smaller than 0.01 cm3 cm−3. The model was also tested by comparing computed versus observed seasonal evapotranspiration. Results for dry years show a modelling efficiency of 0.96 but the model slightly underestimated evapotranspiration for other years. The yield response factor was derived from observed yield data of the hybrid variety H708 when relative evapotranspiration deficits were smaller than 0.5. The value Ky = 1.32 was obtained. The relative yield decreases predicted with this Ky value compared well with observed data. Results support the use of the ISAREG model for developing water saving irrigation schedules for the Thracian plain. 相似文献
40.
Trusheva B Popova M Naydenski H Tsvetkova I Gregorio Rodriguez J Bankova V 《Fitoterapia》2004,75(7-8):683-689
Two new polyisoprenylated benzophenones, 18-ethyloxy-17-hydroxy-17,18-dihydroscrobiculatone A and 18-ethyloxy-17-hydroxy-17,18-dihydroscrobiculatone B, together with the known scrobiculatones A and B, were isolated from Venezuelan propolis. The scrobiculatones A and B showed significant antibacterial activity and moderate toxicity to Artemia salina nauplii. 相似文献