No 4 (2009)

In article the structure and use of land resources of one of the countries of the African continent - Guinea-Bissau is considered. Data about structure of the agricultural area is cited. The data characterizing change of arable land, permanent corps, meadows and pastures is analyzed. The structure of the land occupied with grain, olive, fruit crops is considered. Data about rates of change of areas under crops of these cultures are cited.

Assess the ability to embryogenic callus formation and regeneration of plants of several varieties of soft and hard spring wheat breeding Egyptian and Russian in order to select genotypes suitable for biotechnology. Callus from mature embryos were isolated from dry seeds and immature embryos isolated from kernels at 10-12 days after pollination. The highest frequency of embryogenic callus production from mature embryos marked for cultivar Novosibirskaya-22 (71,4%), the lowest capacity for embryogenesis has the cultivar Sids-1 (4%). For some genotypes the higher frequency of production embryogenic callus obtained in the use of mature, but for others - immature embryos. For one genotypes higher frequency of embryogenic callus formation is received at use mature, and for others - immature embryos. With increase in age of culture the proportion of embryogenic calli was reduced at all cultivars, after four months of culturing it became close to zero. Novosibirskaya-22, Suhadzh-1, Gemmiza-1 can be used as sites of cell selection or genetic engineering.

Morphological descriptions of soil profiles of alluvial meadow dark-coloured soils and feature of their microstructure are resulted. Profiles of studied soils have structure common features. They are accurately differentiated on arable horizon of 28-30 sm and underlaying layers. Diversity in distribution of layers is observed. Plaster educations in a kind линзообразных crystals are had. Long agricultural use essentially has not affected an initial structure of soils.

The technology of cultivation of chickpea in rice cropping system using residual moisture left after the harvesting of rice, in ensuring the formation of 2,5 t/ha of grain was developed. The ways of primary tillage were explored and mold deep loosening of soil to a depth of 0.3 m was suggested. The optimum planting dates of chickpea were determined to ensure rational use of soil moisture reserves.

In this article basic concepts are examined in area of estimation of accordance, confirmation of quality and safety of products; stages conducting of works for certifications of procedures on confirmation of conforming of products to the requirements of legislative and normative base; the analysis of the state of production is given and presence of necessary terms for table work of enterprise; the distinctive features of technology of productions of grainy caviar of salmon are specified.