scholarly journals Photosynthetic pigments and ultrastructure of chloroplasts of the fern Dryopteris filix-mas (L.) Schott in various phenological phases of development

2018 ◽  
Vol 12 (2) ◽  
pp. 77-86
Author(s):  
М. М. Shcherbatiuk ◽  
◽  
L. М. Babenko ◽  
О. V. Vasheka ◽  
І. V. Kosakivska ◽  
...  
Keyword(s):  
Photosynthetic Pigments ◽  
Phases Of Development ◽  
Phenological Phases

scholarly journals Morphobiochemical features of plant adaptation in the Northern forest-steppe of Western Siberia

2021 ◽  
pp. 108-115
Author(s):  
O. O. Vronskaya ◽  
O. L. Zandekova
Keyword(s):  
Western Siberia ◽  
Seasonal Development ◽  
Forest Steppe ◽  
Adaptive Potential ◽  
Northern Forest ◽  
The Family ◽  
Phases Of Development ◽  
Phenological Phases

The article presents the results of long-term research on the adaptive potential of plants of the genus Iris of the family Iridaceae in the Northern forest-steppe of Western Siberia. An assessment of the morphobiological features of irises was carried out, the timing of flowering and the amount of positive temperatures necessary for the onset of such phenological phases of development as regrowth, budding, flowering and fruiting were determined. The indicator role of phenolic compounds and peroxidase in iris leaves during seasonal development was revealed. The studied indicators can be used as an informative parameter for evaluating the state of plants for phyto-indication and introduction.

scholarly journals BIOLOGICAL ASSESSMENT OF THE INTRODUCED VARIETIES OF EASTERN PERSIMMON IN THE DRY SUBTROPICS OF SOUTHERN DAGESTAN

2019 ◽  
pp. 116-120
Author(s):  
A. V. Ryndin ◽  
N. G. Zagirov ◽  
N. A. Ibragimov
Keyword(s):  
Dry Matter ◽  
Biochemical Analysis ◽  
Matter Content ◽  
Biological Assessment ◽  
Dry Matter Content ◽  
Phases Of Development ◽  
Fruit Harvest ◽  
Long Term Studies ◽  
Phenological Phases

The aim of the research is to study the characteristics of growth, development and biochemical composition of the introduced varieties of eastern persimmon in the conditions of Southern Dagestan. Long-term studies for 2015-2018 were carried out with the use of generally accepted programs and classical methods of sorting and selection studies. As a result, the biological features of the passage of phenological phases of development of introduced varieties of persimmon eastern specific territory were studied to optimize plantings in industrial plantations and peasant farms, persimmon varieties were proposed that are characterized by valuable economic and biological characteristics and properties with the aim of increasing yields, where the fruit harvest from 1 tree and the yield from 1 ha is allocated the East Hiakume persimmon variety (317.2 g; 58.6 kg and 293.0 c/ha). According to the peculiarities of growth and development in cultivation in the conditions of Southern Dagestan, it was found that the highest height of the tree is the Hachia variety (4.74), the crown diameter the Giro variety (4.26), and the trunk circle the Hachia variety (31.7 cm). A biochemical analysis of the fruits of the main assortment of Eastern persimmon fruits was performed, which showed that the Hachia variety was distinguished by the dry matter content, the amount of sugars and vitamin C (19.3%, 13.6% and 46.5 mg%, respectively).

scholarly journals Non-season production of raspberry of red berry products in conditions of heated winter greenhouses

2019 ◽  
pp. 58-66
Author(s):  
Svetlana V. Akimova ◽  
Alexandra N. Vikulina ◽  
Vasily I. Demenko ◽  
Vadim V. Kirkach ◽  
Olga N. Aladina ◽  
...  
Keyword(s):  
Optimal Timing ◽  
Clonal Micropropagation ◽  
Traditional Variety ◽  
The World ◽  
Open Ground ◽  
Ground Conditions ◽  
Fruit Growing ◽  
Phases Of Development ◽  
Phenological Phases

Relevance. Currently, in many countries of the world, the production of non-season raspberry berry products has become widespread. Recently, interest in this technology has arisen in Russia, which has great prospects for the development of industrial gardening. In our opinion, it is promising to develop elements of technology for the non-seasonal production of red raspberries, propagated by the method of clonal micropropagation with a traditional and remontant type of fruiting in the conditions of winter heated greenhouses.Material and methods. The experiments were carried out in the laboratory of clonal micropropagation of garden plants in the fruit growing laboratory of RGAU-MSHA named after K.A. Timiryazev. The objects of research were varieties of red raspberries with a traditional (variety Volnitsa) and remontant (varieties Orangevoe Chudo and Bryanskoe Divo) type of fruiting. The experimental plants were propagated by the method of clonal micropropagation and grown before distillation in open and protected ground; plants propagated by root offspring served as control. Experimental plants were planted in open ground for growing in mid-May, in mid-October they were transplanted into 10 liter containers and transferred to protected ground conditions. Then put in the refrigerator compartment with a temperature of + 1 ... + 5°C. For distillation, the raspberry repairing plants were exposed in the winter heated greenhouse on January 20, while the shoots of replacing the aboveground system were normalized: without normalization, 3 shoots per plant, complete pruning of the aboveground system. Raspberries with a traditional type of fruiting were exposed in a winter heated greenhouse in three periods on January 20, February 10, March 2. Accounting for the passage of the phenological phases of development and yield was made for 3 months every 5 days.Results. In the conditions of winter heated greenhouses, efficiency has been shown and elements of technology for non-season production of raspberry berries remontant and berries with a traditional type of fruiting, propagated in vitro and grown before open field distillation are developed. It was revealed that it is necessary to normalize the shoots before distillation of raspberry remontant, and the optimal timing for the start of distillation for raspberries with a traditional type of fruiting has been established.

The Impact of Seasonal Changes in Plant Tissue on Rhizogenesis of Stem Cuttings of Once Blooming Roses

2016 ◽  
Vol 44 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Marta Joanna MONDER ◽  
Konrad WOLIŃSKI ◽  
Maciej NIEDZIELSKI ◽  
Andrzej PACHOLCZAK
Keyword(s):  
Biologically Active ◽  
Soluble Carbohydrates ◽  
Stem Cuttings ◽  
Active Components ◽  
Single Node ◽  
Before And After ◽  
Phases Of Development ◽  
The Impact ◽  
Polyphenolic Acids ◽  
Phenological Phases

The majority of old and long-to-root roses are enough frost resistant to grow on their own roots in moderate and coolclimates. The most often used method of rose propagation are single node stem cuttings derived from blooming shoots. Thelong duration of rhizogenesis exposes cuttings to stress conditions and precocious ageing processes, which result in a lowrooting percentage. It was hypothesized that in the short season of flowering the amount of nutrients in shoots of stock plantschanges, thus affecting the process of rhizogenesis, as well as a condition of rooted cuttings, which may be estimated by thecontents of the biologically active components. The shoots of four rose cultivars were cut in four phenological stages: flowerbuds closed, flowers opened, just after petal shedding and 7-14 days after petal fall. The rooting percentage were counted after10 weeks of rooting. The evaluation of plant material were carried out before and after rooting, including: soluble proteins,chlorophyll a and b, carotenoids, polyphenolic acids, reducing and total soluble carbohydrates. The research revealedvariability, characteristic for each examined cultivar, in the contents of the biologically active compounds, both before and afterrooting, in cuttings harvested from stock plants in successive phases of development. Decrease in pigment contents in leaves ofrooted cuttings may suggest a progressing senescence, both during propagation and later in a vegetative season. The cuttings of‘Mousseuse Rouge’ rooted similarly when harvested in each of the phenological phases (53.8-67.5%). For other cultivars thehighest rooting percentage was obtained for cuttings harvested from shoots with closed flower buds: (‘Hurdals’ 47.5%,‘Maiden’s Blush’ 55.0%, ‘Semiplena’ 67.5%). In these cultivars a relationship between rooting percentage and changes in thecontents of pigments, sugars or/and polyphenolic acids in successive phenological phases was shown.

scholarly journals Evaluation of varieties (Citrus limon L.) according to economic and biological characteristics

2021 ◽  
Vol 1 (98) ◽  
pp. 220-229
Author(s):  
A. F. Balabak ◽  
◽  
V. V. Polishchuk ◽  
I. V. Kozachenko ◽  
V. V. Babii
Keyword(s):  
Air Temperature ◽  
Geographical Origin ◽  
Biological Characteristics ◽  
Forest Steppe ◽  
Citrus Limon ◽  
Optimal Conditions ◽  
Introduced Plants ◽  
Phases Of Development ◽  
Crown Formation ◽  
Phenological Phases

Evaluation of seven introduced genotypes of lemon (CITRUS LIMON L.) of domestic and foreign selection in the Central Forest-Steppe of Ukraine (Department of Horticulture of Uman NUS) was carried out on the basis of economic and biological characteristics. Their systematic origin was determined and the possibility of using introduced varieties of Citrus Limon L. in the garden and park economy of the Central Forest-Steppe of Ukraine was investigated. The possibility of using introduced representatives of Citrus Limon L is highlighted and studied. in the horticultural economy of the central forest-steppe of Ukraine. Geographical origin has been clarified. The evaluation was carried out on decorative properties and basic economic and biological characteristics. Indicators of rhizogenesis of the studied varieties are carried out and generalized. This year, studies will be conducted on the phenological phases of development, flowering and fruiting of introduced plants, both in general and on the example of individual samples. A brief economic, biological and decorative characteristic of collectible lemon varieties in the conditions of the central forest-steppe of Ukraine is given, which are included in further research on the cultivation and reproduction of promising varieties for further use in gardening. For rooting, cuttings of 10–12cm in size were taken. leaving one pair of leaves on it. Rooting of Lemons was carried out on April 20–25, 2020 at an average daily temperature of 18°C. The soil mixture for rooting consisted of leaf humus, turf soil and sand in a ratio of 2: 1: 1. During rooting in the room where the experiment was conducted, optimal conditions for cuttings were provided, namely: maintaining the air temperature not lower than 25°C and humidity 80–85 %. Digging of rooted cuttings was carried out on September 24-45, 2020. After digging, an analysis of lemon rooting was performed. As a result of the conducted researches the received varietal samples had good development of root system and growth of shoots. During rooting, the cuttings were treated with a gel root-forming agent "Clonex". Plants of the selected varieties will be planted in mid-April, when the average daily air temperature will be 10–12°C so that the plants take root and do not die. In summer, it is planned to monitor the timing and frequency of flowering, the intensity of growth of young shoots, and crown formation.

scholarly journals The influence of seed rate on the growth and development of early maturysorg cereal hybrids

2019 ◽  
Vol 2019 (2) ◽  
pp. 152-162
Author(s):  
A.O. Rozhkov ◽  
L.A. Sviridova ◽  
A.N. Sviridov
Keyword(s):  
Growth And Development ◽  
Dry Mass ◽  
Grain Sorghum ◽  
Seeding Rate ◽  
Seed Rate ◽  
Plant Safety ◽  
Field Germination ◽  
Early Ripening ◽  
Phases Of Development ◽  
Phenological Phases

The results of four-year research on the influence of seeding rates on the dynamics of biometric indicators, the duration of phenological phases of development and plant safety of modern early-ripening hybrids of grain sorghum are given. It is established that the seeding rates of 120 and 160 thousand pieces/ha cause lengthening of the tillering period and the interphase formation period – grain ripening. Increasing the seeding rate to 240 thousand pieces /ha led to a decrease in the field germination rates of seeds and plant safety in all studying hybrids. The discrepancy between the height of plants by the seeding rates of 120 and 160 thousand pieces/ha was minimal and increased at high seeding rates of 200 and 240 thousand pieces / ha. For all the studying seeding rates, the maximum air-dry mass of plants was formed by the hybrid sorghum Yutami in all years of research. Keywords: sorghum, seeding rate, phenological phases, field germination, plant safety, height, air-dry mass.

scholarly journals Phenological evaluation of the established somaclonal line of camelina sativa resistant to salt and osmotic stress

2020 ◽  
Vol 1 (97) ◽  
pp. 52-61
Author(s):  
A. I. Liubchenko ◽  
Keyword(s):  
Osmotic Stress ◽  
Plant Material ◽  
Selection Process ◽  
Growing Season ◽  
Vegetation Period ◽  
Camelina Sativa ◽  
Climatic Conditions ◽  
Phases Of Development ◽  
Salt And Osmotic Stress ◽  
Phenological Phases

The biological features of сamelina sativa make it possible to grow it in different soil and climatic conditions with high economic efficiency, to obtain environmentally friendly products and make full use of the natural potential of the region. Camelina oil is used for the production of varnishes, paints, soaps, plastics, biodiesel. It is also used for dietary and medical nutrition. The introduction of high-yielding adaptive varieties is the main condition for increasing the production of camelina sativa. Biotechnological methods are used to increase the efficiency of the selection process. Plant forms obtained by biotechnological methods must be evaluated according to a set of economically valuable traits. The length of the growing season is one of the main breeding characteristics of crop varieties. The aim of the work was to analyze the duration of the vegetation period and phenological phases of development of the created somaclonal lines of, resistant to salt and osmotic stress. Phenological evaluation of somaclonal lines of сamelina sativa obtained from explants of Stepovyi 1, Peremoha, Klondike and Yevro 12 varieties was performed during 2018–2020. Created by cell selection, stress-resistant plant material (sodium chloride, mannitol) plant material after microclonal propagation, rooting and adaptation was grown in the research areas of the Department of Genetics, Plant Breeding and Biotechnology, Uman National University of Horticulture. The analysis of the duration of the vegetation period and phenological phases of development of somaclonal lines of сamelina sativa resistant to salinity and osmotic stress was performed. It is established that the lack of moisture and elevated air temperatures contribute to the acceleration of the phases of ontogenesis and the reduction of the total growing season. The duration of «sowing-germination» period plants over the years of research, depending on the genotype, varied from 9 to 13 days, the formation of the rosette — from 8 to 13 days, the period of stalking and budding — from 18 to 20 days, the duration of flowering — from 8 to 27 days, the phase of the green pod — from 13 to 15 days, the period from the beginning of pod browning to the onset of full ripeness of seeds — from 26 to 31 days. The vegetation period of the created samples of сamelina sativa in 2018 averaged 80 days, in 2019 — 89 days and in 2020 — 88 days. According to the Methodology of examination of сamelina sativa for difference, homogeneity, stability the obtained data make it possible to rank the created somaclonal plant lines by the duration of the growing season on medium- ripening – C-234-8, C-326-9, C-402-6, С-419-6, С-586-7, П-46-2, П-46-5, П-202-6, П-202-7, П-248-8, П-485-4, П-618-6, П-646-3, П-658-8, Є-405-5, Є-405-8, K-478-2, K-480-2, K-480-4 and late-ripening – C-87-4, C-87-7, C-121-2, C-121-11, C-384-4.

scholarly journals Seasonal rhythm of growth and development of new cultivars of highbush blueberry (Vaccinium corymbosum L.) introduced into the Belarusian Polesie

2018 ◽  
Vol 63 (4) ◽  
pp. 472-485
Author(s):  
O. V. Drozd
Keyword(s):  
Growth And Development ◽  
Weather Conditions ◽  
Vaccinium Corymbosum ◽  
Climatic Conditions ◽  
Seasonal Development ◽  
Highbush Blueberry ◽  
Lowbush Blueberry ◽  
Phases Of Development ◽  
Early Phases ◽  
Phenological Phases

Based on the data of seven-year observations of the rhythms of seasonal growth and development, the features of the passage of the phases of phenological development of 15 cultivars of highbush blueberry and 1 cultivar of lowbush blueberry have been presented in the article. The rhythmic plasticity of the blueberry cultivars introduced in Belarus appeared in the ability to change phenorhythmics by the reason of different weather conditions during the years of observation. It was reflected in the variation of dates of the main phenological phases onset. At the same time, inter-branch differences in the early phases of development (vegetative) were insignificant, they became much more pronounced in terms of the passage of the phenological phases associated with the development of the generative sphere of the highbush blueberry. The investigated blueberry cultivars under the conditions of the introduction point retain their inherent order of fruit ripening, characteristic of their homeland.The climatic conditions of the Belarusian Polesie ensure the passage of a full cycle of seasonal development by the investigated highbush blueberry of the entire spectrum of ripening of the crop. At the same time, inter-branch differences in the duration of the growing season are insignificant. The obtained results testify to the prospects of the investigated blueberry cultivars of different maturation periods for homestead and industrial gardening in the Belarusian Polesie and determine the expediency of carrying out further introductory research.

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