We have studied the growth of larch plantations in the Republic of Mordovia in order to assess the breeding and selection of candidates for plus trees
Feijoa crop is valuable due to the complex of useful
traits (high frost resistance, big yield, ornamental
value and long profitable period). These fruits have
delicate flavor, nutritional and dietary properties. The
fruits are juicy with a pleasant, gentle, refreshing
sweet and sour taste, specific strawberry-pineapple
flavor and contain significant quantities of important
substances for the human body. Pectin (up to 2.5%),
sugars (6-14%), proteins, vitamins, organic acids,
mineral salts, etc. are among them. However, the
challenge of its cultivation is the lack of cultivars and
plantations are represented by a mixture of hybrids
originated from free pollination, and characterized by
a great variety in biological and morphological traits,
differing not only in yield, but in size, shape and
yield period. In this connection, the breeders faced
the objective to create new cultivars of feijoa, using
classical and modern breeding methods and available
genetic resources for commercial gardening and
production. Development of the core hybrid diversity
material and selection of promising forms are the
most important stages of the breeding process,
providing success of further breeding programs. The
breeding of varieties and forms for crossings was
carried out according to the principle of combining
the desirable traits of the obtained offspring. There
are direct and reverse crosses in six combinations
('Dachnaya' x 'Superba', 'September' x 'Superba',
'Dagomysskaya' x 'Superba', 'Superba' x 'Dachnaya',
'Superba' x 'September', Superba ; X 'Dachnaya'). The
viability of the pollen was evaluated prior to
pollination, by germination on a nutrient medium -
1% agar-agar + 15% sucrose. The degree of fertility
varied year by year: in 2015 - 60-62%, and in 2016 -
68-77-88%. The best crossing combinations were
established 'September' x 'Superba' and the 'Superba'
x 'Dagomyskaya for the creation of the hybrid
genepool of Feijoa sellowiana. A high percentage of germination of the feijoa seeds was noted in
combinations of 'Dagomyskaya' x 'Superba' (74%)
and 'Superba' x 'Dagomysskaya' (70%).
The article contains data on results of calving and blood tests of heifers moved from the Astrakhan region in the Temryuk district of the Krasnodar region in the condition of early pregnancy. According to the accompanying documents, cell blood count, hemoglobin and biochemical parameters were consistent with species and age normal. Calving took place without complications and did not require delivery; received 36 of 36 calves from cows. The quality of the calves found to be satisfactory. On the 45th day of service period, clinical signs of impaired health status were present in 2 animals, however biochemical markers of liver disease, inflammation, and anemia was identified in 7 heifers. In the context of work on creation of livestock combined milk and meat productivity of inseminated heifers and heifers of the Simmental breed the Simmental semen (25 cows) and Aberdeen Angus (34 cows) breeds. Fruitfully inseminated 55 out of 60 animals; indicator of severity of calving was 8 % for Simmental cows. Calves of Simmental breed and Simmental-Aberdeen Angus cross-breeds meet the requirements for live weight at birth and the exterior. Farming on the formation of herds of milk and meat direction of productivity are found to be effective
The experiment studied the use of an herbal
component in feeding of young geese, consisting of
hay meal and alfalfa juices coagulate. The replacement
of 50 % of complete feed by the studied feeding stuff
reduced the protein content in the diet by 9.9-14.9 %
and increased the content of crude fiber 1.76-2.01
times. Gross weight gain in the experimental group
decreased by 3.9 %, with an increase in feed cost by
17.1 %. However, carcasses of geese in experimental
group increased absolute weight of muscles of the
breast and legs by 28.6%, and the relative – 5.6 %
(Ð ˃0.05). Using of herbal ingredients tended to
increase the yield of dressed carcass by 4.8 %, while
the share of internal fat and skin with subcutaneous fat
was decreased. There were no differences in the
chemical composition of poultry muscle tissue in the
groups. Using of herbal ingredients decreased the cost
of 1 kg of feed by 0.7 rubles, but the cost price of
weight gain increased by 5.0 %. It was concluded that
it is necessary to carry out additional studies involving
the feeding of poultry with the identical by nutritional
value compound feed with the additive under study or
without it
The results of immunological assessment of winter wheat varieties included in the State register of breeding achievements of the Russian Federation and the variety of different types of resistance to yellow leaf spot pathogen are presented in this article
It was being done to established difference by sus¬cep-tibility rate of plant pathological bacteria Pse¬udo¬monas syringae spp. It was clearly recog¬nize, that are cultivating varieties Zimtra and Nota were the most susceptibility, and, Krasnodarskaya 99, Fortuna, Pamyat, Batko, Tania were low resis¬tance. Usage for sowing high affected seeds by Pseudo¬monas syringae spp. Leads to decreasing its germi¬nation and biometrical parameters of young growth.
The article analyzes the development of animal husbandry, the effectiveness of land use in the various categories of farms in value and real terms, the reserves of growth of production of animal husbandry products
We review the critical ratio of shares of domestic and
imported sunflower hybrids in the region and the trend
of displacement of domestic hybrids in the Kuban region,
yields and gross harvests culture. The article reveals
a negative trend for the full displacement of domestic
hybrid seeds from the market in the Russian
Federation
In this article chemical and technical characteristics questions of vine materials, received from protoclones of grapes of Saperavi grade - one of the basic classical grades of grapes selected in "Pobeda" Joint-Stock Company are taken up. Samples of grapes have been used for preparation of red table wines by mash fermentation on septum in workshop of micro winemaking of The North Caucasian zone scientific research institute of gardening and wine growing. They have not given vine materials identical on physical and chemical and organoleptical features. Samples with low productivity essentially differed on organoleptical qualities from other samples and had the highest sampling estimations that allows to take measures on loading regulation on a grape bush and correct quality of wine in further by means of methods of agricultural technics. For making high-quality table red vine materials it is recommended to use apple-lactic fermentation by means of oxygen-eating bacteria
This article shows the lines for the processing of manure. Besides, the equipment which is necessary for the realization of the process is defined