scholarly journals Diagnostics of frost resistance of grape varieties in the conditions of stress modeling

2020 ◽  
pp. 105-110
Author(s):  
Ирина Александровна Васылык ◽  
Владимир Владимирович Лиховской ◽  
Али Алхазурович Зармаев ◽  
Валерий Анатольевич Зленко ◽  
Наталия Анатольевна Рыбаченко ◽  
...  

Диагностика степени устойчивости сортов винограда к морозу играет важную роль в селекции, поскольку лишь имея полную точную информацию о присущей конкретному генотипу степени выраженности признака возможно использование его в качестве источника ценного признака в процессе гибридизации. Задачей наших исследований являлось определение степени морозоустойчивости сортов винограда при моделировании стресса в лабораторных условиях с целью отбора наиболее перспективных сортов для включения в селекционный процесс. В исследования включены 53 сорта винограда различного происхождения, в том числе сорта-индикаторы с ранее установленной градацией признака морозоустойчивости. Наибольшую степень устойчивости к стрессу (минус 27 С - 9 баллов по шкале МОВВ) показали сорта Кинг Руби, Молдова, Саперави северный и Берландиери х Рипариа Кобер 5ББ (контроль), обеспечив при этом 100 %-ную сохранность центральных почек. В группу сортов, показавших устойчивость к морозу до минус 24С (7 баллов), определены сорта Альминский, Альминский белый, Атлант, Красностоп золотовский, Мускат ранний, Сибирьковый, Фогельтраубен и контрольный сорт Цитронный Магарача, которые обеспечивают 100 %-ное прорастание центральных почек после промораживания при температуре минус 24С. В ходе анализа данных использованы пять параметров оценки устойчивости к стрессу: % проросших глазков, среднее значение длины проросших побегов, а также количество и длина образовавшихся корней, развитие соцветий. Использование кластерного анализа позволило определить сходство и различия сортов между собой по заданным параметрам. Исследуемые сорта разделились на два различных между собой кластера. Наибольший интерес для селекционной работы представляет кластер, включающий в себя 21 сорт винограда. Эти сорта среди изученных обладают максимальной устойчивостью к стрессу по комплексу параметров. Среди устойчивых к воздействию морозов сортов винограда максимально близкий к контрольному сорту Берландиери х Рипариа Кобер 5ББ является сорт Саперави северный (Ed =0,21). Diagnostics of the resistance degree of grape varieties plays an important role in breeding, since the use of frost resistance parameter as a valuable feature in the process of hybridization is possible only having complete and accurate information about the degree of its expression peculiar for a particular genotype. The objective of our research was to determine the degree of frost resistance of grape varieties when modeling stress in laboratory conditions in order to select the most promising varieties for breeding process. The study covered 53 grape varieties of different origin, including varieties-indicators with previously established gradation of frost resistance parameter. The highest degree of resistance to stress (minus 27°C - 9 points by the OIV scale) showed the varieties ‘King Ruby’, ‘Moldova’, ‘Saperavi Severnyi’ and ‘Berlandieri x Riparia Kobera 5BB’ (control), providing 100% preservation of the central buds. Another group of varieties (7 points): ‘Alminski’, ‘Alminski Belyi’, ‘Atlant’, ‘Krasnostop Zolotovskiy’, ‘Muscat Ranniy’, ‘Sibirkovyi’, ‘Vogeltrauben’ and the control variety ‘Tsitronnyi Magaracha’ provided 100% germination of central buds after freezing at minus 24 ° C . In the process of data analysis, five parameters of stress resistance assessment were used: % of sprouted eyes, average value of length of sprouted shoots, number and length of formed roots, the development of inflorescences. Using of the cluster analysis allowed us to determine the similarity and difference of varieties from each other by given parameters. The studied varieties were divided into two different clusters. The biggest interest for breeding work by the complex of parameters gained the cluster of 21 grape varieties with maximum resistance to stress. Among frost-resistant grape varieties the nearest to the control ‘Berlandieri x Riparia Kober 5BB’ was ‘Saperavi Severnyi’ variety (Ed = 0.21).

1985 ◽  
Vol 104 (2) ◽  
pp. 345-348 ◽  
Author(s):  
S. S. Dhillon ◽  
S. Larsson

SummaryBrassica oil seeds grown in India are occasionally damaged by frost, causing severe losses. A technique was developed to screen germplasm at the seedling stage. Twentyfour lines of B. campestris, B. juncea and B. napus were grown in plastic boxes in a glasshouse in a mixture of peat and sand. The seedlings were frozen after hardening for 2 days at 1 °C. Observations were recorded after 4 days, using a five-point scale. Frost tolerance index (FI) is calculated as the average value for injured plants for each line. Eight lines for each of the three species were tested. B. campestrisas a group showed better frost tolerance. Some lines of Indian mustard also showed good tolerance of low temperature (– 5·5 °C). These findings show good agreement with observations recorded in the literature. The method is detailed and discussed. Suggestions for future programmes are made.


Statyba ◽  
2000 ◽  
Vol 6 (1) ◽  
pp. 46-54
Author(s):  
A. Sadūnas ◽  
H. Mörtel ◽  
A. Cimmers ◽  
V. Švinka ◽  
D. Būrė

2020 ◽  
Author(s):  
Frederic Achard ◽  
Christelle Vancutsem ◽  
Valerio Avitabile ◽  
Andreas Langner

<p>The need for accurate information to characterize the evolution of forest cover at the tropical scale is widely recognized, particularly to assess carbon losses from processes of disturbances such as deforestation and forest degradation<sup>1</sup>. In fact, the contribution of degradation is a key element for REDD+ activities and is presently mostly ignored in national reporting due to the lack of reliable information at such scale.<br>Recently Vancutsem et al.<sup>2</sup> produced a dataset at 30m resolution which delineates the tropical moist forest (TMF) cover changes from 1990 to 2019. The use of the Landsat historical time-series at high temporal and spatial resolution allows accurate monitoring of deforestation and degradation, from which the carbon losses from disturbances in TMFs can be estimated. A degradation event is defined here as temporary absence of tree cover (visible within a Landsat pixel during a maximum of three years duration) and includes impacts of fires and logging activities.<br>We quantify the annual losses in above-ground carbon stock associated to degradation and deforestation in TMF over the period 2011-2019 by combining the annual disturbances in forest cover derived from the Landsat archive the pan-tropical map of aboveground live woody biomass density (AGB) from Santoro et al.<sup>3</sup> at 100 m. To reduce the local variability within the estimation of AGB values, we apply a moving average filter under the TMF cover for the year 2010. <br>The carbon loss due to degradation is accounted as full carbon loss within a pixel (like a deforestation). The reason is that logging activities usually remove large trees with higher biomass densities than the average value of the disturbed pixel indicated by the pan-tropical maps. To avoid double counting of carbon removal, deforestation happening after degradation is not accounted as carbon loss.<br>Our results are compared with estimates of previous studies that cover different periods and forest domains: (i) Tyukavina et al.<sup>4</sup> provide estimates of carbon loss from deforestation for the period 2000-2012 for all forests (evergreen and deciduous) discriminating natural forests from managed forests, and (ii) Baccini et al.<sup>5 </sup>provide estimates of carbon loss from deforestation and degradation for the period 2003-2014 for both evergreen and deciduous forests.</p><p>In a further step, we will analyze the sensitivity of the results to the input AGB values by applying the same approach to other AGB maps (e.g. Baccini et al. 2012<sup>6</sup>).<br>Finally we intend to use Sentinel-2 data (10 m) for monitoring the location and extent of logging activities and burnt areas and further improve the estimates of carbon losses from forest degradation. </p><p>1. Achard F, House JI 2015 doi 10.1088/1748-9326/10/10/101002<br>2. Vancutsem C. et al. 2019 Submitted to Nat. Geoscience<br>3. Santoro M et al. 2018 doi 10.1594/PANGAEA.894711<br>4. Tuykavina A et al 2018 http://iopscience.iop.org/1748-9326/10/7/074002<br>5. Baccini A et al. 2017 doi 10.1126/science.aam5962<br>6. Baccini A et al. 2012 doi 10.1038/nclimate1354</p>


Author(s):  
Rizka Indriani ◽  
Pudji Astuti ◽  
Amir Husni ◽  
Claude Mona Airin

Abstract Day Old Chicken is a living commodity that is widely distributed between islands throughout Indonesia. Transport trip within two to 24 hours, depending on the distance of the enclosure to be addressed. During the Day-Old Chicken journey, a variety of stresses result in stress and also end in death. Strain Day-Old Chicken has different endurance. Physiological stress parameters in poultry by calculating the ratio of Heterophil: Lymphocytes (H: L). This study aims to determine the difference in stress between Day-Old Chicken strain Cobb and Java Super passed through. Research carried out using Day-Old Chicken strain Cobb as many as 100 chicken/box and Java Super 100 chicken /box. The transportation process from Yogyakarta airport (loading) to Makassar airport (landing). Furthermore, Day-Old Chicken was taken four animals randomly before and after it was passed for blood smear preparations. Blood smear preparations with Giemza staining to calculate the H: L ratio. Analysis of H: L ratio data as a comparison of body resistance to stress between Day-Old Chicken strain Cobb and Java Super using Two Way Anova with a 95% confidence level. The results showed that there was no interaction (P> 0.05) between location (loading-landing) and Day-Old Chicken strain different from H: L ratio. The difference in the Day-Old Chicken strain affects the H: L ratio (P <0.05) with the average value of the H: L ratio of Day-Old Chicken strain Java Super higher than the Cobb. The conclusion is that the difference in Day-Old Chicken lines that experience transportation using airplanes affects the body's resistance to stress. Keywords: Day-Old Chicken; Heterophil; Lymphocytes; Stress; Transportation   Abstrak  Day Old Chicken merupakan komoditas hidup yang banyak dilalulintaskan antar pulau di seluruh Indonesia. Perjalanan pengangkutan dalam waktu dua sampai 24 jam, tergantung jarak kandang yang akan dituju. Rasio Heterofil : Limfosit (H:L) dapat digunakan sebagai parameter awal adanya stress transportasi. Penelitian ini bertujuan untuk mengetahui rasio H:L serta tingkat kematian Day Old Chicken galur Cobb dan galur Jawa Super yang ditransportasikan dari Yogyakarta ke Makassar. Penelitian menggunakan Day Old Chicken galur Cobb 100 ekor/boks dan galur Jawa Super 100 ekor/boks. Proses transportasi dari bandara Yogyakarta (loading) menuju bandara Makassar (landing). Day Old Chicken diambil empat ekor secara acak sebelum dan sesudah ditransportasikan untuk perhitungan rasio H:L. Analisis data rasio H:L sebagai perbandingan ketahanan tubuh terhadap stres antara Day Old Chicken galur Cobb dan galur Jawa Super menggunakan Two Way Anova. Hasil penelitian menunjukkan bahwa tidak ada interaksi (P > 0,05) antara lokasi (loading-landing) dan galur Day Old Chicken berbeda terhadap rasio H:L. Perbedaan galur Day Old Chicken mempengaruhi rasio H:L (P < 0,05) dengan nilai rata-rata rasio H:L Day Old Chicken galur Super Jawa lebih tinggi dibandingkan galur Cobb. Kesimpulan bahwa perbedaan galur Day Old Chicken yang mengalami transportasi menggunakan pesawat terbang mempengaruhi ketahanan tubuh terhadap stres.  Kata Kunci: Day Old Chicken; Heterofil; Limfosit; Stres; Transportasi.


Author(s):  
N. I. Nen'ko ◽  
G. K. Kiseleva ◽  
I. A. Il'ina ◽  
N. M. Zaporozhets ◽  
V. V. Sokolova

In the conditions of frequently repeated in recent years, temperature fluctuations in the Anao-Taman zone of the Krasnodar region, where the main areas of grape plantings are concentrated, the resistance issues of grapes to low temperatures of the winter period are particularly relevant, since sharp differences in the air temperature in the autumn-winter period contribute to the decrease in winter resistance Grape vines. The article presents the results of the assessment of physiological biochemical changes, which are a fundamental adaptive reaction of plants associated with the frost resistance of grapes of various ecological and geographical origin: Dostoyny, Krasnostop, Kristall, Vostorg, Aligote, Zarif.  As a result of research in grape varieties, Krasnostop, Crystal, Vostorg was revealed to maximize kidney hydrogen decreased (by 11.7-15.3%) and increased accumulation of water-soluble sugars (at 2.67-3.29 times) in comparison with other studied varieties, What speaks of their larger resistance to low temperatures.  The variety of the Vostorg was discovered an increase in the content of proline by 40.5 times, indicating its active participation in the formation of a protective response to low temperatures. In all studied grape varieties have a closer connection between the kidney hydrogen and the content of soluble sugars in the core than with the content of the proline. Of all varieties, the waters of the grape vines, the content of soluble sugars and proline, the varieties of the Krasnostop, Crystal, Vostorg are allocated as the most resistant to low temperatures in the conditions of the Anao Taman zone of the Krasnodar Territory, which makes it possible to conclude the possibility of their use in the selection process in  quality sources of frost resistance.


2018 ◽  
pp. 155-168
Author(s):  
Dana Křivánková ◽  
Cristiana Lara Nunes ◽  
Zuzana Slížková ◽  
Dita Frankeová ◽  
Krzysztof Niedoba

2021 ◽  
Vol 11 (11) ◽  
pp. 5124
Author(s):  
Ovidiu Tița ◽  
Ecaterina Lengyel ◽  
Diana Ionela Stegăruș ◽  
Petre Săvescu ◽  
Alexandru Bogdan Ciubara ◽  
...  

Grape seeds are a by-product of the wine industry. They represent 38–52% of grape pomace and about 5% of the weight of grapes. The main objective of this study is to establish some important characteristics of grape seeds from red varieties cultivated in Romania. The analyzed grape varieties were Cabernet Sauvignon, Merlot, Pinot noir, Burgund Mare, Cadarcă, Syrah, Novac. The grape seeds were dried and ground and the following determinations were made: determination of total polyphenol content, antioxidant capacity, antiradical capacity and determination of phenolic compounds. The analyses were performed on the first day after obtaining the grape extract, on the 14th day and the 30th day. The obtained results demonstrate that all the analyzed samples have a high content of polyphenols and show antioxidant and antiradical capacity. The highest values were obtained on the first day after separation, drying, grinding and extraction of the grape seeds and began to decrease almost constantly in time, so that for 30 days from storage the values obtained could ensure good operating yields. The seeds from the Novac grape variety obtained the best results throughout the analysis period. In the case of the total polyphenol content, the average value of the three samples Novac was 394.57 mgGAE/g dry extract and the average value of antioxidant capacity was 284.35 mgAAE/g dry extract. The greatest antiradical capacity was presented by the seeds of the Syrah and Novac varieties. The average value of the three samples from the Syrah variety was 62.1%, and in the case of the Novac variety was 61.33%. The paper demonstrates the opportunity of superior capitalization of seeds from the seven grape varieties cultivated on the territory of Romania due to the characteristics it possesses. At present, there is a major interest of consumers in the most natural products, with a major contribution to increasing the body’s immunity. The use of natural compounds in the food and pharmaceutical industry can be an important alternative.


2016 ◽  
Vol 32 (3) ◽  
pp. 135-148
Author(s):  
Łukasz Machniak

Abstract Natural aggregates are widely used both in ribbon and volumetric construction. In respect of quantitative demand, ribbon construction has been definitely much more receptive in recent years. After completion of implementation of large infrastructural investments, co-financed by EU funds, volumetric construction will become one of major directions of sale of aggregates. Due to a lack of accurate information about consumption of aggregates in this construction segment, it is important to estimate the unit consumption ratios in different types of volumetric structures. The thesis presents the statistical image of demand for aggregates depending on selected features of single-family buildings. The basis assumed for determining unit consumption of aggregates is the amount of concrete juxtaposed in design documentations and average content of aggregates in concrete mix. Consumption of aggregates has been defined in respect of such features of a building as: building area, total area, usable area, volume. Also, consumption was assessed depending on structural solutions of ceilings and major architectonic features: the number of storeys above ground and underground. The conducted analyses imply that consumption of aggregates varies according to not only the size of a house under construction, but also the architectural-constructional type of the building. In most cases, the consumption of aggregates to concrete correlates most favourably with the volume of the buildings. The average value of the aggregates consumption ratio is 0.21 Mg per 1 m3 of building volume, with the standard error of the mean equalling 0.003. As regards particular building types, the obtained mean values have a have a lower coefficient of variation, and similar values standard error, especially for the index calculated relative to the usable area. Therefore, it is justified to use these ratios interchangeably. It is possible to prepare regional demand scenarios for aggregates, especially gravel-sand aggregates which are the primary type used to produce concrete, using statistics of the residential construction market, including detached single-family construction, which have been kept for years, supplemented with the identified aggregate consumption ratios.


2022 ◽  
Vol 4 (2) ◽  
pp. 1039-1043
Author(s):  
Fayakun Nur Rohmah ◽  
Siti Arifah

Lack of knowledge about The Menstrual Hygiene Management (MHM) and poor water sanitation is a problem in adolescents in Indonesia. This community service activity aims to increase students' knowledge and awareness about MHM. This community service was carried out in October 2019 at SD Muhammadiyah Karangkajen I and SD Muhammadiyah Karangkajen II followed by 25 students from grades IV, V and V. The design of this activity is the provision of training on MKM by providing training modules and applying several learning methods including lectures, discussions, and simulations that begin with pretest and end postest. The results showed there was a difference in the average value of knowledge of students to MKM and statistically significant p<0.05.  It is expected that students can do MHM appropriately and provide the right information to friends. Teachers are expected to play an active role in providing information about reproductive health so that students get accurate information


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