scholarly journals Studies upon morhological and biological traits of Festuca rubra, subsp.fallax (Poaceae)

2013 ◽  
Vol 52 (1-2) ◽  
pp. 43-48 ◽  
Author(s):  
Bogusław Sawicki

Observation and measurements of some traits of <em>Festuca rubra</em> L., subsp. <em>fallax </em>(Thuill.) Hack. ecotypes were made in 1995-1997 using samples selected from natural habitats and collected in Grassland Experimental Station in Sosnowica. High differentiation of traits under study and their correlations were found. Valorized ecotypes are good material for new varieties breeding.

2021 ◽  
Author(s):  
Mihail Marinich

The aim of the research was to assess the breeding value of the source material of F. rubra of the lawn direction obtained under conditions of various ecotopes of the south of the Central Russian Upland with a predominance of carbonate substrate. In total, 106 numbers of red fescue of various genetic and geological-geographical origin were evaluated in the experiment: 4 varieties and 102 breeding samples. Tests of the breeding value of the collection numbers were carried out in comparison with the zoned varieties of domestic selection (‘Veselka’, ‘Gostenka’, ‘Iskrinka’) and foreign selection (‘Gondolin’). The forms of F. rubra have been identified, approaching erect in shape, having a high shoot-forming ability, pronounced antocian color of inflorescences, whitish bloom on the leaves, which increases the overall decorative effect of lawn herbage. According to a number of important traits for breeding for seed productivity, the forms selected in natural habitats with a predominance of carbonate substrate have wide limits of variation and can serve as genetic sources of individual breeding traits for obtaining new varieties of lawn management with high seed productivity and decorativeness.


2021 ◽  
pp. 36-41
Author(s):  
M. S. Kornilova ◽  
D. P. Kurunina ◽  
G. V. Varivoda

Relevance. The soil and climatic conditions of the Lower Trans-Volga region are considered favorable for melon growing and make it possible to obtain high-quality products. The purpose of the research was to create new competitive varieties and hybrids of melon and pumpkin.Materials and methods. The object of the research is new varieties of melon and butternut pumpkin created at the Bykovskaya melon breeding experimental station. Melon cultivar Osen and pumpkin cv. Zhemchuzhina were used as standards. The methods of creation are intervarietal hybridization, individual and mass selection. During the growing season, appropriate observations and counts were carried out.Results. As a result of many years of breeding work at the Bykovskaya cucurbits selection experimental station, a melon cultivar 251 and a pumpkin cultivar 509 have been created. both producers and consumers. Therefore, the obtained varieties were evaluated for taste, yield, resistance to biological and abiofactors of the environment, dry matter content, fruit size, fruit and pulp color. During the comparative assessment of the accessions, it was determined that the new varieties of melon and pumpkin exceed the standards in terms of the main economically valuable traits. The average yield during the study, in the melon cultivar 251, exceeded the standard by 47.8%. In the pumpkin cultivar, the average yield for three years of research exceeded the standard by 69.6%. In terms of taste, the new melon variety was at the level of the standard, the cv. Osen. A variety of butternut pumpkin exceeded the standard in all quality indicators. The susceptibility to powdery mildew in the melon cultivar varied depending on the year of research. The melon sample showed resistance to anthracnose higher than the standard by 16.4 and 18.6%, over the years of study. In the pumpkin cultivar, resistance to powdery mildew and anthracnose was higher than the standard, on average by 34.9% to powdery mildew and by 28.6% to anthracnose. Thus, new varieties of melon and pumpkin meet the modern requirements of the industrial melon industry, are resistant to environmental stress factors, common diseases, and have economically valuable traits.


2018 ◽  
Vol 154 ◽  
pp. 01005 ◽  
Author(s):  
Fauzan Nazif ◽  
Mahmud Sudibandriyo

Indonesia is one of the countries with the highest levels of air pollution in the world. Air pollution in Indonesia, especially in Jakarta due to the number of private vehicles increased at least 10% every year. This air pollution can have an impact on public health. One effort to do as a protection of people health is to use a mask. Activated carbon can be coated to mask in order to improve the effectiveness in reducing the pollutants. One good material used as material for activated carbon is coconut shell. Selection of coconut shell as the raw material of activated carbon is also based on cellulose content of 26.06%, hemicellulose content 27.07% and a lignin content of 29.40% in the dry state. This research was done in some variation such as activation methods, activated carbon mass, and adhesive material types. Based on pollutants adsorption test, mask with 6 grams of activated carbon, chemically activated, and used TEOS as adhesive is the best variation that able to adsorb as much 76,25% of CO2 Pollutants. Mask made in this research, has saturation time as long as 4 hours under high CO2 concentration.


Author(s):  
Philip Seaton ◽  
Jonathan P. Kendon ◽  
Hugh W. Pritchard ◽  
Dwi Murti Puspitaningtyas ◽  
Tim R. Marks

In 1996 the IUCN/SSC Orchid Specialist Group published a Status Survey and Conservation Action Plan that included a number of recommendations designed to address the problem of a projected imminent and rapid decline of species. Orchids remain subject to a multiplicity of threats in their natural habitats and, in addition to the usual suspects of habitat loss and land conversion, climate change has exerted a measurable effect on some orchid populations. Collection of orchids for traditional medicine is having a significant effect both within China and surrounding countries. Some progress has been made in achieving the targets set for Red Listing of endangered species in some countries, but other countries are lagging behind. In addition to successful initiatives in preserving natural habitats, a number of projects around the world have demonstrated that it is possible both to bring endangered species into cultivation and successfully reintroduce them into the wild. Orchid Seed Stores for Sustainable Use, with its goal of storing seeds representing a minimum of 1000 orchid species in institutes in at least 30 countries over the next five years, provides an example of what can be achieved by a small, dedicated group determined to share their technical expertise and develop a deeper understanding of the underlying science. There is, however, also an urgent need to promote awareness in the wider community about the importance of all sorts of biodiversity (not only orchids) through educational programs and involve people from as wide a range of backgrounds as possible.


HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 474D-474 ◽  
Author(s):  
Raul Leonel Grijalva-Contreras ◽  
Victor Avilez-Peraza ◽  
Adan Fimbres-Fontes ◽  
Ruben Macias-Duarte ◽  
Jose L. Miranda-Blanco

Pear production in Mexico is low; there are about 4500 ha. One of the main problems in this tree fruit is the unknown number of new varieties for each area. The objective of this study was to evaluate 23 common pear cultivars and seven Asian pears. The experiment was carried out at the Experimental Station “El Tasicuri” of Magdalena, Sonora, Mexico. The trees were planted in 1990 on Pyrus calleryana rootstock. The main results were that common pears were not adapted to the area because of the lack of cold weather; however, `Bartlett' was the only cultivar that was adapted. Asian pears showed good adaption into the region (`Shinseiki', `Kikusui', `Hosoui', `Twenty Century', and `Ya-Li'). The ripening date of these cultivars were from the 7 and 20 of Aug. and the weight of the fruit was 146 and 198 g/fruit. There were no pests or diseases in any of the Asian cultivars.


Author(s):  
Paulina MIELCAREK ◽  
Wojciech RZEŹNIK ◽  
Zbyszek ZBYTEK

The aim of the study was to determine the level of emission reduction of selected harmful gases and odours following immediate manure incorporation into soil, using the prototype manure applicator. The research was carried out at the Experimental Station of the National Research Institute of Animal Production, in September 2016. Two experimental fields size 6 x 100 m were located on corn stubble in the distance of 40 m. In field A, the solid manure was incorporated into the soil using the prototype manure applicator. In field B, manure application was made by manure spreader. The prototype manure applicator was designed and made by Industrial Institute of Agricultural Engineering. The concentration of harmful gases (NH3, CO2, CH4, N2O) and odours was measured during the study. Measurements were made in the following periods: immediately after application and 2, 4, 6, 10 and 14 hours after application. The concentration of studied gases was measured immediately after sampling by the photoacoustic spectrometer (Multi Gas Monitor Innova 1312). The odours concentration was determined within 30 hours after air sampling by dynamic olfactometry using the TO 8 olfactometer. The solid manure incorporation reduced NH3 emissions by an average of 66%. For the other studied gases the differences in concentration were too small or this concentration was similar to concentration of these gases in surrounding air. The incorporation of solid manure limited also odour emissions. The level reduction decreased with time and amounted to an average of 25%.


2021 ◽  
pp. 60-62
Author(s):  
Zafar A. Ochilov ◽  
Мarina N. Pokrovskaya

Relevance and methods. The article presents the results of studied the drought and heat tolerance of bread wheat varieties on rainfed. The aim of the research is to study new varieties of common wheat obtained from the international scientific center ICARDA with high drought and heat resistance, in dry conditions and selection for further breeding work. The material of our research was 116 varieties of the international scientific center ICARDA of soft wheat. Research was carried out on bogar in the laboratory of selection and seed production of common wheat of the Gallyaral Scientific Experimental Station of the Research Institute of Grain and Leguminous Crops.Results. It selected 6 varieties of high drought and heat tolerance of bread wheat on rainfed.


2021 ◽  
pp. 63-72
Author(s):  
Bo Peng ◽  
An-Qi Lou ◽  
Xiao-Dong Luo ◽  
Rui Wang ◽  
Shuang Tu ◽  
...  

Black rice is the main member of the special rice family, and it is also a rare grain and oil crop resource in China. Black rice has special medicinal components and high nutritional value. In recent years, the research on the nutritional value and application of black rice has become an important direction, and a series of important progress has been made. In this paper, the nutrition and its influencing factors of black rice, the main ways to improve eating quality, the health care and medical functions of black rice were reviewed. Meanwhile, the application prospect of black rice has also been prospected. Therefore, this review will provide an important theoretical basis for genetic improvement and breeding of new varieties of black rice.


Author(s):  
O. V. Vasylyshyna

The production of quality products and their efficiency is a pressing issue today. The solution of which is inextricably linked to the introduction of new varieties with a high content of antioxidants, pectins, which have healing and preventive properties. To conduct research in 2016 - 2018 at the L.P. Symyrenko experimental station IS NAAN the following varieties of cherry fruits were selected: Alpha, Zhadan, Chance, Elegant, Artemenko Memory, Optimist, Podbelskaya. The cherry was harvested in the consumer stage of ripeness during the first decade of July. According to the complex of physicochemical and organoleptic parameters, the selection of the best variety of cherry fruits was performed by the method of multicriteria optimization. The aim of the work was, on the basis of a comparative analysis of a set of physicochemical and organoleptic indicators of cherry fruits, using multicriteria optimization, to determine the best varieties recommended for production. The results of studies showed that the weight of cherry fruits ranged from 4,2 to 5,2 g. The content of soluble solids in cherry fruits was at the level of 15,26–15,89% and was predominant for cherries in Artemenko memory and the lowest in Podbelska variety. The sugar content of cherry fruits was 10,14 −10,96%. The level of titratable acids that determine the taste of cherry fruits together with the gourds is in the range from 1,67 to 2,02%. It is the highest for cherry fruits of the Artemenko memory, and the lowest for the Elegant variety. The cherry fruits of the experimental varieties have a significant content of ascorbic acid − 19,15−16,25 mg/100 g. The cherries of the Artemenko memory, and the lowest of the Optimist variety, prevail in the fruits. The tasting rating of cherry fruits is 8−8,7 points. According to the complex of the mentioned above physicochemical and organoleptic indicators by the method of multicriteria optimization such varieties of cherry fruits as Artemenko Memory, Alpha and Zhadana are recommended for production implementation


2019 ◽  
pp. 42-45
Author(s):  
Nina G. Baibakova ◽  
Elena A. Varivoda ◽  
Tatyana G. Koleboshina

Relevance. Melon is one of the most common cultures among melons. Bykovskaya for melon breeding research station scouting for new varieties of melon. When breeding melons, it is necessary to pay attention to such economic characteristics of melons as precocity, productivity, high quality products, resistance to disease, cold resistance.Methods. Studies were carried out in 2017-2018 at the Bikovskaya experimental station, in rainfed conditions. Object of study – varieties and hybrid populations of melon.Results. As a result of selection work the new variety sample of melon of Syngent x Dune is received. In 2017, this population was first included in the station variety testing. According to the research results, the new hybrid population Matures before The standard of the autumn variety for 6 days. The excess in yield over the standard is 6.6 t / ha. The taste of the new variety sample is at the level of standard varieties Osen. Thus, the variety sample of Syngent x Dune has a beautiful appearance, high yield of marketable products, good taste of the fruit, resistance to sunburn, good transportability, which will diversify the range of melon varieties grown in Russia.


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