scholarly journals Screening and monitoring of watermelon source material by components of the vegetation period in the conditions of the forest-steppe of Ukraine

2021 ◽  
pp. 18-25
Author(s):  
Zahar Linnik ◽  
Oksana Sergienko ◽  
Tetiana Harbovska

Relevant in the selection of each crop, including watermelon is a comprehensive study of the source material to identify sources of valuable traits and include them in the selection process in order to expand the genetic diversity of the culture. According to the results of research, to create a new source material for heterosis selection of watermelon, screening and monitoring of the vegetation period duration (number of days from germination to ripening) and its components 118 (101 varieties, 17 hybrids) genotypes of watermelon in the forest-steppe of Ukraine have been conducted. Research methods are generally accepted: field experiment, observation, accounting, analysis, statistical. According to the results of determining the duration of the components of the vegetation period, the samples were divided into five groups of ripeness: early (65–80 days) – 80 (68 %), medium-early (81–85 days) – 14 (12 %), medium (86–95 days) – 18 (15 %), medium-late (96–105 days) – 4 (3 %) and late (106 days) – 2 (2 %). Variety-samples, selected by morphological and economically valuable characteristics, belong mainly (80 %) to early and medium-early. Only 6 % of genotypes belong to the medium-late and late-ripening groups. 52 samples with the smallest separate interphase periods were isolated. According to the results of the research, 8 sources with the high early ripeness were identified, the vegetation period of which was 66–70 days: Yellow early 108105 (66 days), Karapuz 108109, Surprise 108121 (67 days), Gift of the sun 108109, Lezheboka honey 108116, Thailand №1 108153 ( 69 days), Sweet Diamond 107874, Northern Lights 108127 (70 days). Sources are involved in the selection process

2021 ◽  
Author(s):  
Svetlana Kuzmina ◽  
Nina Kazydub ◽  
Vladimir Panchenko

This study examined the genetics of the variability in quantitative traits and showed the possibility of selecting hybrids with a new, more favorable combination of traits, which is of practical interest for breeding. The main goal of our research was to determine the coefficients of heritability by the mass of seeds and the number of beans per plant in hybrid combinations of chickpeas, which allowed establishing the potential of parental varieties in the transfer of valuable genes responsible for plant productivity to offspring and expanding the spectrum of plant genetic diversity. The experiments were conducted in the fields of the educational and experimental farm of the Omsk State Agrarian University in the southern forest-steppe of the Omsk region in 2016-2018. The research included 6 chickpea samples with a complex of valuable traits from the Federal Research Center of the All-Russian Institute of Plant Genetic Resources named after N.I. Vavilov (VIR, St. Petersburg) and 8 hybrid combinations obtained on their basis. It was found that the mass of seeds per plant was characterized by low heritability (H2 = 22.8%) and the number of beans per plant was high (H2 = 54.0%). The variability of the mass of seeds per plant was largely paratypical and was influenced by environmental conditions; the variability in the number of beans per plant was due to genetic factors and indicated a high genetic diversity in the studied splitting chickpea populations. Selection based on the number of beans per plant was highly effective even in early generations of the hybrids. Selection by the mass of seeds from the plant was ineffective; it should be carried out in later hybrid generations under favorable growing conditions. The selection of valuable genotypes was most successful in hybrid chickpea populations by seed weight per plant: C-35 x ILC-2394, C-80 x ILC-2394, C-27 x ILC-2394, and by the number of beans per plant: C-27 x ILC-2394, C-27 x ILC-2402 Keywords: chickpeas, heritability, selection, genetics, productivity


Author(s):  
L. P. Kravtsova ◽  
S. A. Saaja

Based on the research carried out in 1995-2019, the main approaches to the selection of criteria for attracting introduced species in the dry conditions of Khakassia are substantiated. The objects of research are 14 species of medicinal plants of the family Lamiaceae Lindl. different areas of origin. During the introduction, we used the method of comparing climates and generally accepted research methods. The most promising sources of source material are species that have Euro-Asian, Siberian-Central Asian, and North American ranges; by belt-zonal type - forest-steppe, mountain-steppe boreal; by ecological type - species from the group of mesoxerophytes, xeropetrophytes that have wide ecological amplitude, the requirements of which correspond to the conditions of the sharply continental climate of Khakassia.


2020 ◽  
Vol 25 ◽  
pp. 02019
Author(s):  
Tatiana Prichko ◽  
Elena Ulyanovskaya ◽  
Natalia Droficheva

The generalized results of a comprehensive long-term assessment (2015-2019) of biochemical and technical indicators of the quality of apple fruits of promising varieties (Malus domestica x Borkh.), including: the valuable initial parental forms and new varieties of regional selection, different in ploidy and genetic origin are presented, grown in the conditions of the South of Russia. This work used the generally accepted modern methods and programs for the variety study of fruit plants developed at the North Caucasian Federal Scientific Center for Horticulture, Viticulture, Wine-making (NCFSCHVW). The aim of the study was to select the source material of the apple fruit quality, which is valuable for the breeding, and the sources of the target traits based on the analysis of longterm data on the assessment of the biochemical composition of promising varieties of different ploidy and genetic origin. As a result of the comprehensive assessment of the main indicators of the quality of apple fruits in a varietal section, the sources of significant traits of apple tree for breeding use were identified: large-fruited, bright red and pure yellow color, improved chemical composition of fruits. According to the data of a longterm studies of the quality indicators of the apple fruits of introduced varieties and varieties of selection of the FSBSI NCFSCHVW, genotypes with an improved biochemical composition were identified for the use in the selection process: diploids: Champion, Orpheus (sugar content 10.5% and 10.8%, respectively); triploids: Soyuz, Vasilisa and the diploid variety Fortuna (vitamin C - more than 10.0 mg / 100 g); diploids: Margo, Vasilisa (P-active substances - more than 110.0 mg / 100 g).


2021 ◽  
Vol 11 (2) ◽  
pp. 5-14
Author(s):  
Anna Popova ◽  
Svetlana Morkovina ◽  
Anna Ivanova

The article discusses the issues of creating an organizational model of selection based on cytogenetic and mor-phological markers for reforestation in the conditions of the central forest-steppe. The results of the development of an organizational model are presented, presented by a complex of context diagrams, created in the software product Busi-ness Studio 4.0. The decomposition of selection processes based on cytogenetic and morphological markers in the form of context diagrams made it possible to visualize the identification process of pedigree genotypes of pedunculate oak and to build in space and time a sequential process of using additional selection markers in conjunction with classical breeding approaches, selection of methods and means of achieving breeding goals. Providing the visibility of the pe-dunculate oak breeding process based on cytogenetic and morphological markers allows, due to the technological de-scription of the composition of the processes, the characteristics of the consumed resources (material, labor and finan-cial), to get an idea of the process under study and quickly draw a logical conclusion from the large amount of data obtained. The model organization of the process of creating forest plantations of fast-growing species was carried out with the aim of the most efficient use of technology and an increase in labor productivity, which determines its promising use as a selection tool and makes it possible to accelerate the selection process of Quercus robur L. offspring when creating forest crops


2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.


Author(s):  
Soraya Masthura Hasan ◽  
T Iqbal Faridiansyah

Mosque architectural design is based on Islamic culture as an approach to objects and products from the Islamic community by looking at their suitability and values and basic principles of Islam that explore more creative and innovative ideas. The purpose of this system is to help the team and the community in seeing the best mosque in the top order so that the system can be used as a reference for the team and the community. The variables used in the selection of modern mosques include facilities and infrastructure, building structure, roof structure, mosque area, level of security and facilities. The system model used is a fuzzy promethee model that is used for the modern mosque selection process. Fuzzy inference assessment is used to determine the value of each variable so that the value remains at normal limits. Fuzzy values will then be included in promethee assessment aspects. The highest promethee ranking results will be made a priority for the best mosque ranking. This fuzzy inference system and promethee system can help the management team and the community in determining the selection of modern mosques in aceh in accordance with modern mosque architecture. Intelligent System Modeling System In Determining Modern Mosque Architecture in the City of Aceh, this building will be web based so that all elements of society can see the best mosque in Aceh by being assessed by all elements of modern mosque architecture.Keywords: Fuzzy inference system, Promethe, Option of  Masjid


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Grimar Abdiel Perez ◽  
Pumipat Tongyoo ◽  
Julapark Chunwongse ◽  
Hans de Jong ◽  
Anucha Wongpraneekul ◽  
...  

AbstractThis study explored a germplasm collection consisting of 112 Luffa acutangula (ridge gourd) accessions, mainly from Thailand. A total of 2834 SNPs were used to establish population structure and underlying genetic diversity while exploring the fruit characteristics together with genetic information which would help in the selection of parental lines for a breeding program. The study found that the average polymorphism information content value of 0.288 which indicates a moderate genetic diversity for this L. acutangula germplasm. STRUCTURE analysis (ΔK at K = 6) allowed us to group the accessions into six subpopulations that corresponded well with the unrooted phylogenetic tree and principal coordinate analyses. When plotted, the STRUCTURE bars to the area of collection, we observed an admixed genotype from surrounding accessions and a geneflow confirmed by the value of FST = 0.137. AMOVA based on STRUCTURE clustering showed a low 12.83% variation between subpopulations that correspond well with the negative inbreeding coefficient value (FIS =  − 0.092) and low total fixation index (FIT = 0.057). There were distinguishing fruit shapes and length characteristics in specific accessions for each subpopulation. The genetic diversity and different fruit shapes in the L. acutangula germplasm could benefit the ridge gourd breeding programs to meet the demands and needs of consumers, farmers, and vegetable exporters such as increasing the yield of fruit by the fruit width but not by the fruit length to solve the problem of fruit breakage during exportation.


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