SOME RESULTS OF PEACH BREEDING IN THE RESEARCH STATION OF FRUIT GROWING CONSTANTA, ROMANIA

2009 ◽  
pp. 157-160
Author(s):  
L.M. Dumitru
1985 ◽  
pp. 31-38
Author(s):  
P.D. Misic ◽  
R.R. Todorovic ◽  
M.A. Mirkovic ◽  
Lj. M. Jovanovic

2021 ◽  
Vol 10 (19) ◽  
pp. 476-481
Author(s):  
Margareta Corneanu ◽  
Iuliana Elena Golache ◽  
Elena Iurea ◽  
Iulia Mineață ◽  
Sorina Sîrbu

The soil and climate conditions in Romanian Northeastern area are favorable for cherry cultivation, but some times can occurred some calamities. The paper presents a study which during 2020 at the Research Station for Fruit Growing (N-E of Romania), using five sweet cherry genotypes as research material: ‘Van’, ‘Croma’, ‘Elaiași’, ‘HC920402’, ‘HC930208’. Observations and determinations were performed in regards to the frostdamages, the main growing and phenological stages and the physical and chemical traits of the fruit. The phenological stages were evaluated for beginning of flowering and fruit ripening (expressed in growing degree-days, GDD). For these sweet cherry cultivars, the highest values concerning the fruit’s weight have been recorded for ‘Elaiași’ (9.15 g) and ‘HC920402’ (7.7 g), while fruit’s equatorial diameter have ranged between 23.21 mm and 25.16 mm. The content of soluble dry solids (SDS) was between 14.6 and 20.2 °Brix. The proposed objective aims at introducing in the assortment the new varieties with quality fruits and their resistance to cracking, with ripening time at the extremities of the sweet cherry season.


Author(s):  
I.V. Grynyk ◽  
◽  
V.V. Filiov ◽  

The paper is devoted to the centenary of the L.P. Symyrenko Research Station of Pomology foundation. The authors have depicted the main stages of the institution formation and development and elucidated its principal scientific achievements. The history of the station began with the creation of the greatest in Russian Empire nursery farm by the outstanding Ukrainian pomologist Levko Platonovych Symyrenko near Mliiv (the now Cherkasy region). As early as in 1912 the cultivars of different plants numbered almost to 3 thousand here. On November 25, 1920 according to the decision of the Board of the People's Commissariat of Agriculture of the Ukrainian SSR the Mliiv Horticultural and Truck Gardening Research Station was created on the basis of the above mentioned nursery. Its first director was L.P. Symyrenko’s son Volodymyr Levkovych, who embodied the creative ideas of the great-grandfather, grandfather and father, realized the cause of several generations of the Symyrenkos. He was a real founder of the Ukrainian horticulture, namely: created and developed all the attributes of Ukrainian pomology, systems of research institutions and state nurseries and the State "Pomological Book". V.L. Symyrenko, professors L.M. Ro and V.P. Popov, research worker M.A. Grossheim and others were major organizers of the station. With their direct participation the departments of horticulture, vegetable growing, entomology, agricultural meteorology, phytopathology, technical processing of fruits and small fruits, agrochemistry ets. were founded and functioned by 1927 already. In 1958 the station was named after L.P. Symyrenko. In the April of 1989 on the initiative of its then director M.M. Artemenko and with the support of the scientific collective it was reorganized as the Mliiv L.P. Symyrenko Research Institute of Horticulture of the Lisosteppe of Ukraine, in 1992 in accordance with tho order of the Presidium of the Ukrainian Academy of Agrarian Sciences (UAAS) renamed as Mliiv L.P. Symyrenko Institute of Horticulture of UAAS and in 2006 as L.P. Symyrenko Institute of Pomology of UAAS. In 2017 it was reorganized as the L.P. Symyrenko Research Station of Pomology of the Institute of Horticulture of the National Academy of Agrarian Sciences (NAAS). Today, it is one of the leading scientific institutions of the NAAS system in the horticultural branch. The scientific and research works are carried out in conformity with the four scientific and technical programmes of NAAS: “Genetical Resources of Plants”, “Horticulture and Small-Fruit Growing”, “Plant Protection” and “Agrarian Economics”. The main direction of the institution research activity is the elaboration of the scientific basis of the preservation and spread of the genetic versatility of the fruit, small fruit, nuciferous and minor crops. At present more than 3,000 varieties of fruit, small fruit, nuciferous and ornamental crops are studied in the collectional plantations. That is the valuable genetic fund of Ukraine. Today 72 varieties bred by the Mliiv Research Station have been entered into the State Register of the Plant Cultivars Favourable for the Spread in Ukraine.


Author(s):  
Marioara Trandafirescu ◽  
Liana Melania Dumitru ◽  
Iulian Trandafirescu

In Europe, the Plum pox virus causes one of the most serious diseases of stone fruit-growing species (plum, apricot, peach, nectarine, almond and cherry) in all countries where cultivated. Romania is one of the countries in which this virus has been present for several years and where the contamination level is very high. The disease causes considerable damage, as the infected trees have few fruit, which are small, deformed, lacking in flavour, with a low content of sugar and which can neither be consumed nor used in production. In areas where the Plum pox virus is present, the cultivation of highly resistant (tolerant) genotypes is the only possibility to alleviate this problem. The purpose of the research performed in this paper was to identify varieties that are tolerant to the virus and to monitor the manner in which the resistance is transmitted to hybrid descendants. The material employed consisted of apricot tree varieties from the national collection of the Research Station for Fruit-Growing Constanþa. The presence of the Plum pox virus was determined by biological method using a GF305 wooden indicator and the serological method through the ELISA test. The varieties identified as having higher resistance to the attack of the Plum pox virus (‘Stark Early Orange’, ‘NJA 17’, and ‘Sulmona’) were used in intraspecific hybridisations for the selection of hybrids to which this characteristic was transmitted. These included: the selections ‘VT 48/45’, ‘VT 51/45’, ‘VT 47/112’ and ‘H 9/5’.


2015 ◽  
Vol 48 (3) ◽  
pp. 81-88
Author(s):  
Elena Iurea ◽  
Sorina Sîrbu ◽  
G. Corneanu

Abstract The paper proposes the improvement of the current bitter cherry assortment with new creations made at Iaşi, adapted to the specific conditions from the NE area of Romania. For the improvement of the bitter cherry assortment with new, productive, disease resistant cultivars with fruits of good quality, resistant to cracking with different maturation stages, in 1981 at Fruit Growing Research Station (F.G.R.S.) Iaşi - Romania has begun an action of selection and promoting of some valuable genotypes of bitter cherry (existent in the spontaneous flora or in plantations from the Iaşi county), which were being planted with cultivars and other genotypes from all around the country. Following the positive and gradual selection there were selected three biotypes of bitter cherry from which two of them have been approved as new cultivars in 1994, with the names „Amar Maxut”, respectively, „Amar Galata” and the biotype „Amar R5.P10” has been registered in 2013 at the State Institute for Variety Testing and Registration Bucharest to be approved as a new cultivar. All three bitter cherry genotypes correspond to the objectives of the main assortment breeding. They have a high productivity because the natural fertility index registered values between 36.5-63.7%, the trees have a reduced vigour, they present a good resistance to frost (1-9% affected buds) and to diseases (values of I% anthracnose, 1.1-2.8%). The fruits are high quality and the maturation stages are at the extremities of the cherries maturation season.


2021 ◽  
pp. 10-14
Author(s):  
Yu. Klechkovskyi ◽  
І. Yudytska

Goal. Clarification of certain biological features of development and seasonal dynamics of the flight of peach twig borer in peach orchards of the Southern Steppe of Ukraine. Methods. Field — research of the biological features of peach twig borer development using pheromone-trap method was conducted in accordance with generally accepted methods in peach orchards of SPS “Naukova” of Melitopol fruit growing research station named after M.F. Sydorenko of IH of NAAS of Ukraine Results. It was determined that in the conditions of peach orchards in the South of Ukraine restoration of feeding peach twig borer caterpillars began in the end of March — the middle of April, and the hatching — in the end of April — the beginning of May. During 2018—2020, the beginning of the flight of butterflies of the pest was observed starting from 06 to 18 May, with the accumulation of the sum of effective temperatures (SET) >8°С 154.5—254.3 and lasted continuously until September 18—30 (134—141 days) with three peaks. The appearance of the pest caterpillars was observed from the 2—3rd ten-day period of May (SET>8°С 299.0—349.5°С). The peaks of peach twig borer flight were observed in the 3rd ten-day period of May, late June — early July, and during the 3rd ten-day period of July — mid-August. The duration of the development of the first generation was 44—50 days, the next — 30—40 days, with accumulation of SET>8°С from imago to imago varying between 436.5 and 743.0°С. Conclusions. In the south of Ukraine, three peaks of flight and development of two full generations of peach twig borer are noted, caterpillars of the third generation completed the development in the spring of the following year. Fluctuations in the number of imago during the growing season were influenced by both meteorological factors and the degree of reproduction of the pest of the previous generation. During the years of research, the highest intensity of catching of butterflies of a fruit striped moth was noted in July — August at high mean weakly air temperatures (25.0—26.9°С) and the conditions of severe drought (HTC 0.2).


2013 ◽  
pp. 131-134
Author(s):  
G. Corneanu ◽  
S. Sirbu ◽  
L. Petre ◽  
E. Iurea ◽  
M. Corneanu ◽  
...  

2020 ◽  
Vol 36 ◽  
pp. 5-11
Author(s):  
Mădălina Militaru ◽  
Monica Sturzeanu ◽  
Adina Iancu

Apple scab, incided by the fungus Venturia inaequalis (Cke.) Wint., is a devastating disease of apple reported from almost all apple producing Romanian areas, which causes up to 70% losses of production. Molecular markers were used for detection of scab resistance genes in 22 old and introduced apple cultivars ('Romus 3', 'Romus 5', 'Rebra', 'Rustic', 'Nicol', 'Colmar', 'Colonade', registered by Research Institute for Fruit Growing Pitesti; 'Generos', 'Iris', 'Irisem', 'Luca', 'Ciprian', 'Cezar', 'Remar', 'Valery', 'Real', registered by Research Station for Fruit Growing Voinesti, Dambovita; 'Aura', 'Starkprim', 'Ionaprim', 'Bistritean', registered by Research Station for Fruit Growing Bistrita and old cultivars: 'Domnesc', 'Cretesc'). The presence of scab resistance genes were detected using the molecular markers: AL-07 (SCAR), AM19 (SCAR), VfC for Rvi6 (Vf) gene, AD13 (SCAR) for Rvi4 (Vr1) gene, OPL19 (SCAR) for Rvi2 (Vh2) and Rvi8 (Vh8) genes and OPB12 (STS) for Rvi5 (Vm) gene. The Rvi6 gene was detected in 17 cultivars from different breeding center. The marker AD13 presents in genome of 8 cultivars, such as 'Romus 3', 'Romus 5', 'Generos', 'Iris', 'Irisem', 'Cezar', 'Remar', 'Aura'. The Rvi5 gene was revealed in 3 cultivars ('Nicol', 'Generos', 'Irisem'), only.


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