{"title":"In situ and ex situ variability of phenological and morphological features in Caltha palustris L. under the conditions of the West Siberian forest steppe","authors":"Т. I. Fomina","doi":"10.30901/2227-8834-2023-3-169-177","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-169-177","url":null,"abstract":"Background. Caltha palustris L. is known as a medicinal, food, and ornamental plant. It is a circumboreal species, and hygrohelophyte. Due to its ecological specificity, this plant can be used to study the response to an abrupt change in environments. The goal was to assess the variance in phenological and morphological features of C. palustris in the forest steppe of Western Siberia. Materials and methods. Phenotypic characters of the native population and the accessions introduced from Kemerovo Province and Altai Territory were studied. Phenological observations followed a well-known technique for herbaceous perennials. Morphometric data were processed in the PAST program using statistical indicators: the arithmetic mean with an error (M ± mM), minimum and maximum values of the trait (lim), and coefficient of variation (Cv). Significance of differences was assessed using Student’s t -test (Pt) at a 5% significance level. For traits deviating from the normal distribution, the significance of differences was assessed using the Mann–Whitney criterion (PMW) by median values of the trait (Me) at the same 5% level. Results and conclusions. The accessions varied significantly in the timing and duration of phenophases. Plants in the native population grew later and bloomed for a long time because of the variation in microconditions. Ex situ plants produced the second generation of rosette shoots and were capable of long vegetating, but the Altai accession differed in later growth and shorter phenophases. All accessions significantly differed in morphological characteristics of the shoot, except for flower size. The introduced accessions were inferior to the native ones in shoot height, leaf size, and number of flowers due to non-optimal cultivation environments. Since C. palustris demonstrated high individual and interpopulation variability, it is promising to study this species in different natural populations and select the most ornamental and sustainable accessions.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135414260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vsevolod L. Vitkovsky (1928–2005): dedication to his 95th birthday","authors":"Yu. V. Ukhatova, A. V. Shlyavas","doi":"10.30901/2227-8834-2023-3-233-239","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-233-239","url":null,"abstract":"In 2023, the 95th anniversary has been commemorated since the birth of Professor Vsevolod L. Vitkovsky, Doctor of Biological Sciences, a prominent scientist and fruit expert, one of the eldest staff members of the Department of Fruit Crop Genetic Resources at the Vavilov Institute.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"50 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135414386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. A. Abdullaev, K. A. Lukina, B. A. Batasheva, O. N. Kovaleva, E. E. Radchenko
{"title":"Genetic diversity of barley accessions from East Asian countries in terms of resistance to powdery mildew","authors":"R. A. Abdullaev, K. A. Lukina, B. A. Batasheva, O. N. Kovaleva, E. E. Radchenko","doi":"10.30901/2227-8834-2023-3-178-186","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-178-186","url":null,"abstract":"Background. Barley is an ancient crop currently cultivated in more than 100 countries. High adaptability makes it possible to cultivate it in environments unfavorable for many other crops. At the same time, fungal diseases can have a negative impact on its grain yield and quality. One of the most harmful is the fungus Blumeria graminis (DC.) Golovin ex Speer f. sp. hordei Marchal. The pathogen can overcome a cultivar’s resistance, resulting in significant harvest losses. There is a need for a constant search for new effective sources of resistance to powdery mildew for barley breeding. Materials and methods. A set of 950 barley accessions from the East Asian center of the crop’s morphogenesis were studied at the adult stage of plant development. They were screened and crossed in the fields of Pushkin and Pavlovsk Laboratories of VIR (St. Petersburg, Russia). Genetic control of barley resistance to B. graminis was analyzed in a climate chamber under artificial infection pressure with the northwestern population of the fungus. Scoring scales were used for screening. Results and conclusions. Weak development of B. graminis during the heading phase was observed on plants of 38 barley accessions from the East Asian center. High resistance at all stages of development was manifested by 20 genotypes that can be used in breeding programs. Resistance genes in 18 selected forms differed in their effectiveness at the seedling stage of development and during the heading phase. Accessions k-3433, k-10931, k-10934, k-11608, k-17545, k-20272, k-20279, k-20354 and k-27867 had one dominant resistance gene each. Accessions k-11608, k-12278, and k-17545 are protected by the identical gene, while the resistance of k-3433 is induced by a gene that differs from the genes present in accessions k-10931 and k-20279.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"50 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135414545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. S. Efremova, N. N. Volkova, D. A. Rybakov, O. V. Lisitsyna, P. V. Ozerski, Т. A. Gavrilenko
{"title":"Development of the potato cryocollection preserved in the VIR cryobank","authors":"O. S. Efremova, N. N. Volkova, D. A. Rybakov, O. V. Lisitsyna, P. V. Ozerski, Т. A. Gavrilenko","doi":"10.30901/2227-8834-2023-3-9-20","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-9-20","url":null,"abstract":"Background . The article presents the results of the studies carried out within the framework of a complex program for the long-term conservation of genotyped accessions of domestic potato cultivars in the cryobank of the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR). These accessions are genetically identical to the nomenclature standards of the corresponding cultivars. Materials and methods. The research material included 24 accessions from the in vitro collection of VIR, corresponding to the nomenclature standards of Russian potato cultivars developed in different breeding centers of the Russian Federation. Cryopreservation was carried out using the droplet vitrification method, several stages of which were modified in the Department of Biotechnology of VIR. Results and discussion . The frequency of post-cryogenic regeneration for the analyzed 24 cultivars in control variants with short-term immersion of explants in liquid nitrogen varied from 20 to 47.3%, and in 9 accessions it exceeded 39% – the current level of reliable long-term preservation of samples in cryobanks. The data of the statistical analysis failed to reveal a significant effect of the genotype or the calendar dates of different experiment replications on the regeneration ability. These 24 accessions were added to the potato cryocollection stored in the VIR cryobank. An analysis of the composition and structure of VIR’s potato cryocollection, which currently includes 140 accessions, is presented.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. S. Butovets, I. N. Danilenko, N. A. Kraskovskaya
{"title":"Evaluation of grain yield and quality in maize hybrids of various origin under the conditions of Primorsky Territory","authors":"E. S. Butovets, I. N. Danilenko, N. A. Kraskovskaya","doi":"10.30901/2227-8834-2023-3-32-40","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-32-40","url":null,"abstract":"Background. This study was dedicated to the evaluation and selection of maize hybrids of different origin for important agronomic traits and for protein and oil accumulation in grain under the conditions of Primorsky Territory, as well as for their possible use as source material for breeding. Materials and methods. Twenty-two grain maize hybrids of various geographic origin were studied at the Federal Scientific Center of Agricultural Biotechnology of the Far East named after A.K. Chaika” in 2017–2020. Useful agronomic characters and biochemical indications were assessed, correlations between parameters were established, and an integrated evaluation of maize hybrids was made. The hybrids were ranked relative to a predetermined ideal model. Results. Based on the results of the integrated assessment, maize hybrids Р 7709, Р 8688 and Р 8523 (Pioneer Corporation) and Si Rotango (Syngenta) had the highest scores for a set of important agronomic traits under the conditions of Primorsky Territory. Higher protein content levels were detected in maize grain when the combination of temperature and moisture was optimal (Selyaninov’s hydrothermal coefficient = 1.1). The highest oil content was observed at an enhanced level of soil moisture (HTC = 3.1). The Si Rotango hybrid had the maximum protein content. The NUR, Ladozhsky 181 MV and P 7054 hybrids showed the maximum in oil content. Strong direct correlations were discovered between the yield and the weight of 1000 kernels and one ear, and between grain yield and the height of the lower ear position. Weak reverse correlations were observed between biochemical parameters and yield, and between a FAO maturity group and grain yield.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. D. Bemova, M. Sh. Asfandiyarova, T. V. Yakusheva, V. A. Gavrilova, N. V. Kishlyan
{"title":"Ecogeographic study of peanut accessions from the VIR collection","authors":"V. D. Bemova, M. Sh. Asfandiyarova, T. V. Yakusheva, V. A. Gavrilova, N. V. Kishlyan","doi":"10.30901/2227-8834-2023-3-79-89","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-79-89","url":null,"abstract":"Background. It has been shown that southern oilseeds, including peanuts, can be successfully grown in the south of the Russian Federation under the conditions of Krasnodar Territory and Astrakhan Province. Currently, only two peanut cultivars are included in the State Register of the Russian Federation: ‘Otradokubansky’ and ‘Astrakhansky 5’. Development of raw material for obtaining new peanut cultivars adaptable to the growing conditions in Krasnodar Territory and Astrakhan Province is a relevant task.Materials and methods. We examined 57 peanut accessions of various origins from the VIR collection. The study of peanut accessions for agronomic characters was carried out in two ecogeographic sites located in Krasnodar Territory and Astrakhan Province. Cv. ‘Otradokubansky’ was used as a reference. ANOVA was applied for statistical data processing.Results and discussion. A wide range of variability in agronomic characters was revealed during the study of peanut accessions. The most stable character was the 1000 seed weight. The share of the genotype the variability of productivity was from 30 to 40%. A great effect of soil and climate factors and the place of cultivation on the ripening of beans was observed. Seed yield depended on the genotype (60–70%) as well as on the temperature factors and the presence of moisture in the soil. The best accessions were selected according to their agronomic characters; they may serve as promising material for breeding. Some accessions are able to produce a good harvest either in Astrakhan Province or Krasnodar Territory, while others can do it regardless of the place of cultivation. This study confirmed the possibility of growing peanuts in Astrakhan Province on medium loamy soils under irrigation, or in Krasnodar Territory on black earth without irrigation.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phenological assessment of early-maturing soybean accessions (Glycine max (L.) Merr.) under the conditions of Moscow Province","authors":"E. V. Vlasova, Yu. V. Gorbunova, I. V. Seferova","doi":"10.30901/2227-8834-2023-3-90-104","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-90-104","url":null,"abstract":"Background . The range of early-maturing cultivars suitable for the Non - Black-Earth Zone of the Russian Federation (RF) is extremely limited. The main method of finding sources of earliness for crop production and breeding is the evaluation of the gene pool under the required conditions. Materials and methods . The objects of the study were 81 soybean accessions from the VIR collection, precharacterized as early-ripening under the conditions of Northwest Russia. The studies were carried out in 2018–2020 as field trials under the conditions of Moscow Province. Results . Soybean accessions were characterized by the duration of the emergence-to-flowering (37–53 days), flowering-to-ripening (50–85 days) and emergence-to-ripening (81–130 days) periods. The extreme ripening dates for the accessions were observed from August 20 to October 5, while the maximum duration from emergence to ripening was from 93 to 139 days. The highest sum of active temperatures above 10°C for a growing season ranged from 1642 to 2189°C. Most of the studied accessions were characterized by a short emergence-to-flowering period. Therefore, the differences among accessions in the duration of the growing season were mainly due to the different lengths of their flowering-to-ripening period. Conclusion. Soybean seeds should ripen no later than the first 10 days of September for a stable harvest under the weather conditions of the Russian Non - Black-Earth Zone. There were 32 accessions from breeding centers of the RF, Belarus, Poland, Germany, Sweden, and the U.S. that met these requirements during the three years of observations. The selected accessions demonstrated a short emergence-to-flowering period of 37–48 days, and the length of their flowering-to-ripening period of 50–66 days, on average for three years. They can be used as sources of earliness in soybean breeding.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"23 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Selection of strawberry cultivars according to their productivity and berry quality using normalized indices","authors":"V. I. Lapshin, V. V. Yakovenko","doi":"10.30901/2227-8834-2023-3-61-69","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-61-69","url":null,"abstract":"Background. Combined use of various data transformation methods and a multivariate statistical analysis that takes into account several variables would increase the efficiency of selecting promising strawberry genotypes according to a set of traits for industrial and small-scale production. Materials and methods. In 2020–2022, 17 short-day garden strawberry cultivars were studied. The analysis was carried out for productivity (the number of berries, the weight of berries of the 1st order, and the average berry weight), marketable quality of berries (berry pulp density, berry height, and berry diameter), and total weight of berries per plant. Mathematical data processing employed a two-factor analysis of variance, the principal component method, cluster analysis by Ward’s algorithm, and Wilcoxon test. Results. The statistical significance of the cultivar and year factors, and their interaction was measured. The cultivar’s genotype had the greatest effect on the variability of characters. Greater part of the total variance in the set of characters was determined by the first five principal components. The cluster analysis identified two groups of cultivars. The initial data were transformed according to the least significant difference (LSD 05 ) to obtain normalized indices. Taking into account the Wilcoxon test, the cultivars were ranked by the indices. When comparing the groups built in line with mean and total values of the normalized indices with the cluster analysis results, 6 best strawberry cultivars were identified for the studied set of characters. Conclusion. The combined use of multivariate methods and normalized indices made it possible to identify the most promising strawberry cultivars according to their yield and berry quality: ‘Olympia’, ‘Nelli’, ‘Florence’, ‘Kemia’, ‘Jive’, and ‘Alba’.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. G. Goldshtein, A. I. Suprunov, P. M. Bogdan, V. V. Sherstobitov, V. I. Khoreva, L. P. Nosovskaya, L. V. Adikaeva, E. B. Khatefov
{"title":"Productivity potential of maize hybrids developed at the P.P. Lukyanenko National Grain Center for deep grain processing","authors":"V. G. Goldshtein, A. I. Suprunov, P. M. Bogdan, V. V. Sherstobitov, V. I. Khoreva, L. P. Nosovskaya, L. V. Adikaeva, E. B. Khatefov","doi":"10.30901/2227-8834-2023-3-51-60","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-51-60","url":null,"abstract":"Background. The technology of deep grain processing is based on the use of operations that ensure separation of raw materials into various components and sequential processing of these components into products of high consumer value. The annual volume of deep grain processing products is over 100 million tons. Starch, as the most valuable component of processed grain, is used in the food industry, pharmacy, and in significant amounts for technical purposes. Studying the potential of domestic maize hybrids to provide raw materials for deep grain processing enterprises is a relevant task. Materials and methods. The material for field and laboratory studies included 17 commercial maize hybrids developed at the P.P. Lukyanenko National Grain Center. The content of starch, protein and oil in grain was measured with infrared spectroscopy on an Infratec 1241 Grain Analyzer. Actual extraction of native starch was implemented using the “plant-on-the-table” method developed at the All-Russian Research Institute of Starch Products, and breeding trials of maize hybrids were carried out in the steppe zone of Kabardino-Balkaria in 2020/2021. Results. As a result of the research, 13 hybrids with a mass fraction of starch in the range of 70.0–73.2% DM were identified: KR210MV, KR270MV, KR377AMV, KR385MV, KR415MV, ROSS198MV, KR433MV, KR514MV, KR575MV, LYUDMILA, ROSS190MV, and ROSS195MV. Of these, the grain yield in the range of 10–14 t/ha was shown by the hybrids KR270MV, KR315MV, KR377AMV, KR415MV, KR514MV, and KR575MV. In accordance with the results obtained, a number of hybrids can be recommended as source material for breeding and promising raw material for deep grain processing: KR415MV, KR393MV, and ROSS198MV, yielding 90.0–94.4% DW of starch when processed, and KR315MV, with a mass fraction of amylose in starch up to 38.6% DW.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. N. Korotkikh, N. V. Nevkrytaya, T. V. Platonova
{"title":"Comparative ecological testing of Achillea millefolium (L.) cultivars in Moscow Province","authors":"I. N. Korotkikh, N. V. Nevkrytaya, T. V. Platonova","doi":"10.30901/2227-8834-2023-3-125-134","DOIUrl":"https://doi.org/10.30901/2227-8834-2023-3-125-134","url":null,"abstract":"Background. The cultivars of Achillea millefolium L.: ‘Eney’ and ‘Millennium’ (Research Institute of Agriculture of Crimea), and ‘Vasyurinsky’ (North-Caucasian Branch of VILAR), were the objects of the ecological testing in 2018–2020 in Moscow Province. Methods. A nursery was established with planting material of vegetative origin. Phenological and morphometric parameters, indicators of raw matter productivity, and crop structure components were assessed in the phase of mass flowering. Results. For cv. ‘Vasyurinsky’, the start of growing and subsequent phenological phases occurred 14–25 days earlier than for ‘Eney’ and ‘Millennium’ whose growing season was 15–20 days longer. The plant height varied from 72 to 106 cm for cv. ‘Vasyurinsky’, 43 to 56 cm for ‘Eney’, and 38 to 42 cm for ‘Millenium’. The yield of fresh green biomass reached 8.8–10.3 t/ha for the Crimean cultivars, and 18.2 t/ha for ‘Vasyurinsky’. The latter exceeded cvs. ‘Eney’ and ‘Millenium’ in the yield of green biomass and air-dry matter (1.7–2.9 and 1.5–2.6 times, respectively). Essential oil content in ‘Eney’ was 4.74% of the absolute dry weight, being 1.6–3.5 times higher than in ‘Millenium’ (2.99%) and ‘Vasyurinsky’ (1.35%). Chamazulene content in the essential oil of the Crimean cultivars was 10–12 times higher, and the content of caryophyllene and germacrene D 2.5–3.1 times higher than in the essential oil of cv. ‘Vasyurinsky’. Conclusion. All the studied cultivars of A. millefolium can be recommended for commercial cultivation in Moscow Province.","PeriodicalId":36512,"journal":{"name":"Proceedings on Applied Botany, Genetics and Breeding","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}