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Characteristics of Fungus-Tolerant Grapevine Cultivar ‘Morava’ Grown Under Organic and Conventional Management 有机与常规管理下耐真菌葡萄品种莫拉瓦的特性研究
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0002
D. Ivanišević, M. Kalajdžić, P. Cindrić, N. Korac, P. Bozovic
Summary The Serbian fungus-tolerant grapevine cultivar ‘Morava’ has been recognized by both wine producers and consumers, resulting in increased areas devoted to the cultivar. ‘Morava’ (‘SK 77-7/4’ x ‘Bianca’, released in Sremski Karlovci) is a popular cultivar for white wines, particularly in the central part of Serbia, because of the interesting aroma profile of its wine. The objective of this research was to investigate the yield, grape quality and wine sensory characteristics of the ‘Morava’ grapevine cultivar grown under organic and conventional management. The experiment was conducted at an experimental field for viticulture in Sremski Karlovci (Faculty of Agriculture, University of Novi Sad) during the period 2015-2018. The grape yields produced under organic management were found lower than those under conventional management. The chemical composition of organic grapes was on par with that of conventional grapes, whereas the wine sensory characteristics of organic grapes were scored higher than those of conventional grapes.
塞尔维亚的抗真菌葡萄品种“莫拉瓦”已经得到了葡萄酒生产商和消费者的认可,从而增加了该品种的种植面积。“莫拉瓦”(“SK 77-7/4”x“比安卡”,在斯雷姆斯基卡尔洛夫奇发布)是一种受欢迎的白葡萄酒品种,特别是在塞尔维亚中部地区,因为它的葡萄酒具有有趣的香气。本研究的目的是研究在有机和常规管理下种植的“莫拉瓦”葡萄品种的产量、葡萄品质和葡萄酒感官特性。该试验于2015-2018年期间在Sremski Karlovci(诺维萨德大学农学院)的葡萄栽培实验田进行。有机管理下的葡萄产量低于常规管理下的葡萄产量。有机葡萄的化学成分与常规葡萄相当,而有机葡萄的葡萄酒感官特征得分高于常规葡萄。
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引用次数: 0
A Goal Programming Approach to Multi-Objective Farm Planning Among Small-Scale Arable Crop Farmers in Kogi State, Nigeria 尼日利亚科吉州小规模耕地农民多目标农场规划的目标规划方法
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0017
F. O. Okpanachi, L. Tanko, F. D. Ibrahim, A. Adewumi
Summary The purpose of this study was to develop prototype farm plans according to the multi-objective production goals of small-scale arable crop producers in Kogi State, Nigeria. A multi-stage sampling technique was used to select a total of 137 farm households in different local government areas (LGAs). A structured questionnaire complemented with interview schedule was used to collect primary data from the respondents. Descriptive statistics and linear goal programming were used for data analysis. The results obtained indicate that the optimal plan of generating an income of ₦242,076.20 requires 0.368 ha of melons, 0.044 ha of yam/maize mixture and 0.259 ha of sorghum/groundnuts. The optimal net profit was 44.05% higher than that achieved by implementing the existing plan. To meet family food requirements, the solution plan prescribed devoting 0.048 ha to cassava, 0.211 ha to sorghum, 0.368 ha to melons, 0.074ha to Bambara nuts, and 1.065 ha to sorghum/groundnuts to generate an income of ₦158,475.00. To minimize paid labour and generate an income of ₦168,325.50, the plan prescribed devoting 0.195 ha to rice, 0.502 ha to melons and 0.246 ha to Bambara nuts. Out of the three basic farm household objectives considered, meeting family food requirements and limiting labour expenditure were overachieved, whereas the objective of maximizing farm income was underachieved. A great deal of the existing staple food plan was found consistent with the prescribed optimal plan, except in the case of existing cassava and Bambara nut production which was falling short of the optimal production prescribed. The maize/groundnut production had the lowest shadow prices. However, land, labour, capital, agrochemicals, fertilizers and seeds constituted the limiting resources in the plan. It was found that these resources were not optimally allocated in the existing plan for arable crop activities. Therefore, the respondents were advised to utilize their resources as prescribed in the optimum plan, supported by farm advisory services in selecting good crop mixtures.
本研究的目的是根据尼日利亚科吉州小规模可耕地作物生产者的多目标生产目标制定原型农场计划。采用多阶段抽样方法,对不同地方政府辖区的137户农户进行了调查。采用结构化问卷与访谈时间表相结合的方式收集受访者的原始数据。采用描述性统计和线性目标规划进行数据分析。所得结果表明,产生242,076.20奈拉收入的最佳计划需要种植0.368公顷甜瓜、0.044公顷山药/玉米混合物和0.259公顷高粱/花生。最优净利润较实施现有方案提高44.05%。为满足家庭粮食需求,该解决方案规定投入0.048公顷种植木薯,0.211公顷种植高粱,0.368公顷种植瓜类,0.074公顷种植班巴拉坚果,1.065公顷种植高粱/花生,以产生158,475.00奈拉的收入。为了尽量减少有偿劳动并产生168,325.50奈拉的收入,该计划规定将0.195公顷用于种植水稻,0.502公顷用于种植瓜类,0.246公顷用于种植班巴拉坚果。在所审议的三个基本农户目标中,满足家庭粮食需求和限制劳动力支出的目标超额实现,而最大化农业收入的目标则未达到。除现有木薯和班巴拉坚果产量低于规定的最佳产量外,现有主食计划的大部分与规定的最佳计划一致。玉米/花生产量的影子价格最低。然而,土地、劳动力、资本、农用化学品、化肥和种子构成了计划中的有限资源。人们发现,这些资源在现有的耕地作物活动计划中没有得到最佳分配。因此,建议答复者按照最优计划的规定利用其资源,并在选择良好作物混合物方面得到农场咨询服务的支持。
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引用次数: 0
Biopesticides in Organic Agriculture
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0020
Jelena Golijan-Pantović, M. Sečanski
Summary The central issuses in organic agricultural production are related to the plant protection sector. As the use of synthetic pesticides is not allowed in the organic system of agricultural production, biopesticides are considerd a natural, safe and environmentally friendly alternative. The purpose of this study is to identify the most important biological agents used as biopesticides in organic agriculture through a review of the relevant literature. Biopesticides are compounds made from microorganisms and various natural materials of plant and animal origin. Biological protection also includes the use of extracts of different plant species (such as essential oils) that have toxic effects on plant pathogens. This paper accounts for the most important types of biopesticides based on bacteria, fungi and viruses, which are licensed for use in the Republic of Serbia according to the Law on Organic Agriculture. Their mechanisms of action, possibilities of application and efficiency are described in the present study. The bacterium Bacillus subtilis is the most studied bacterial species used in biological protection, whereas the species Bacillus thuringiensis is predominantly used for the control of harmful insects. There is no doubt about the need for alternative protection systems in the future, which necessitates further scientific research. A sound application of biopesticides in combination with preventive protection measures would meet the requirements of safe agricultural production.
有机农业生产的核心问题与植物保护部门有关。由于在农业生产的有机系统中不允许使用合成农药,生物农药被认为是一种天然、安全、环保的替代品。本研究的目的是通过对相关文献的回顾,确定有机农业中最重要的生物农药。生物农药是由微生物和各种植物和动物来源的天然材料制成的化合物。生物保护还包括使用对植物病原体有毒性作用的不同植物物种的提取物(如精油)。本文介绍了塞尔维亚共和国根据《有机农业法》许可使用的基于细菌、真菌和病毒的最重要类型的生物农药。本文介绍了它们的作用机理、应用前景和效率。枯草芽孢杆菌是研究最多的用于生物防护的细菌种类,而苏云金芽孢杆菌主要用于防治有害昆虫。毫无疑问,未来需要替代保护系统,这需要进一步的科学研究。合理施用生物农药,结合预防保护措施,才能满足农业安全生产的要求。
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引用次数: 4
Knowledge, Attitude and Practice Analysis of Inclusive Extension Service Among Agricultural Extension Workers in Southwestern Nigeria 尼日利亚西南部农业推广工作者包容性推广服务的知识、态度与实践分析
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0012
K. Adeloye, D. O. Torimiro, Deborah Anu Omoboyede, Bisola Deborah Arowolo, Ifeoluwa Ezra Adedipe, Adebukola Nafisat Alao
Summary The study analysed the knowledge, attitude and practice (KAP) of inclusive extension service among agricultural extension workers in southwestern Nigeria. All the extension workers (268) in Agricultural Development Programmes (ADPs) in five states randomly selected within southwestern Nigeria were interviewed for the study via a structured and pre-tested questionnaire. The collected data were presented using descriptive and inferential statistics. The mean age, formal education and job experience of the extension workers were 43.3±8.4, 17.0±2.6 and 14.1±8.4 years, respectively. The majority of the respondents were male (74.3%) and married (77.8%). Furthermore, most of them have encountered farmers with special needs such as albinism (81.7%), hearing impairment (87.3%), visual impairment (85.2%) and mental disability (81.7%) among others. The majority of the respondents (60.0%) had high capacity for inclusive extension service. The extension workers differed significantly across the states in terms of their practice scores, but not in their knowledge and attitude scores. The findings revealed that at p<0.05, job experience (r= 0.483) and age (r=0.322) of the respondents had significant relationship with KAP of inclusive extension service. Therefore, the hypothesis was accepted for sex and marital status, but was rejected for ethnicity, age and job experience. The study concludes that the extension workers differ significantly across the states in terms of practices, but not in their knowledge and attitude about inclusive extension services.
本研究分析了尼日利亚西南部农业推广工作者对包容性推广服务的知识、态度和实践(KAP)。在尼日利亚西南部随机选择的5个州的农业发展计划(adp)的所有推广工作者(268人)通过结构化和预先测试的问卷进行了访谈。收集的数据采用描述性和推断性统计。推广工作者的平均年龄为43.3±8.4岁,平均学历为17.0±2.6岁,平均工作年限为14.1±8.4岁。受访者以男性(74.3%)和已婚(77.8%)居多。此外,他们遇到的农民大多有特殊需要,如白化病(81.7%)、听力障碍(87.3%)、视力障碍(85.2%)和精神障碍(81.7%)等。大多数受访者(60.0%)具有较高的包容性延伸服务能力。各个州的推广工作者在实践得分上存在显著差异,但在知识和态度得分上没有显著差异。结果显示,被调查者的工作经验(r= 0.483)和年龄(r=0.322)与包容性延伸服务的KAP存在显著相关(p<0.05)。因此,该假设在性别和婚姻状况方面被接受,但在种族、年龄和工作经验方面被拒绝。该研究的结论是,各州的推广工作者在实践方面存在显著差异,但在他们对包容性推广服务的知识和态度方面却没有差异。
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引用次数: 0
Cost of Environmental Protection: A Case Study of a Biomass Power Plant in Serbia 环境保护的成本:塞尔维亚生物质发电厂的案例研究
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0016
D. Milić, V. Rodić, N. Vukelić, Petrana Odavić, N. Tica, V. Zekić
Summary Biomass power production offers significant potential for the Republic of Serbia, especially for AP Vojvodina, as it is an agricultural area with large quantities of plant residues. However, in order to use these resources sustainably, the price of the produced energy should include the cost related to environmental protection. The aim of this paper is to use the LCC method to determine the cost arising from environmental protection in a biomass power plant. The results show that the investments in equipment for reducing pollution in a biomass power plant of the capacity 1MW accounts for 1.08% of the total investments. Also, the environmental cost accounts for the lowest share in the cost price. If investments are (voluntarily) made in purifier filters, they amount to 1.53 EUR/1,000kWh (1.52% of the total cost). If the investments in filters are excluded from the calculation (as under the existing legislation these filters in Serbia are still not mandatory), then the environmental cost is 0.91 EUR/kWh (only 0.91% of the cost price). Therefore, in financial terms the cost of environmental protection does not pose, as is often assumed, a threat for business of such a plant and socially responsible producers should not try to avoid them.
生物质发电为塞尔维亚共和国提供了巨大的潜力,特别是对伏伊伏丁那省,因为它是一个农业地区,有大量的植物残留物。然而,为了可持续地利用这些资源,所生产能源的价格应包括与环境保护有关的成本。本文的目的是利用成本成本法来确定生物质发电厂的环境保护成本。结果表明:1MW容量的生物质发电厂的污染减排设备投资占总投资的1.08%;此外,环境成本在成本价格中所占的份额最低。如果(自愿)投资于净化器过滤器,则投资额为1.53欧元/1,000千瓦时(占总成本的1.52%)。如果将过滤器的投资排除在计算之外(因为根据塞尔维亚现行立法,这些过滤器仍然不是强制性的),那么环境成本为0.91欧元/千瓦时(仅占成本价格的0.91%)。因此,从财务角度来看,环境保护的成本并不像人们通常认为的那样,对这类工厂的业务构成威胁,对社会负责的生产者不应试图回避这些成本。
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引用次数: 1
Incidence of Grapevine Fanleaf Virus (GFLV) and Grapevine Leafroll-Associated Viruses (GLRaV 1−3) in Vojvodina Province 伏伊伏丁那省葡萄扇叶病毒(GFLV)和葡萄叶相关病毒(GLRaV 1−3)的发病率
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0015
F. Bagi, G. Barać, R. Iličić, Z. Savić, Milica Starovlah, Đina Konstantin, T. Popović
Summary During May and June of 2021, a total of 123 grapevine leaf samples were collected and analyzed for infection by grapevine fanleaf virus (GFLV) and three viruses from the grapevine leafroll-associated virus complex -1, -2 and -3 (GRLaV-1, GRLaV-2 and GRLaV-3, respectively). The samples were collected from commercial vineyards, small backyard vineyards and grapevine nurseries located across the entire Vojvodina Province (Bačka, Banat and Srem). OEPP/EPPO sampling protocols were followed during the sampling of leaf tissues showing possible virus infection symptoms. Among the 123 samples, 47 were collected from Bačka region (Bačko Gradište − 11, Bečej − 10, Temerin − 15, Vrbas − 1, Hajdukovo − 10), 50 from Banat region (Srpska Crnja − 10, Vojvode Stepe − 10, Čoka − 10, Uljma −20) and 26 from Srem region (Šid − 6, Banoštor − 10, Sremski Karlovci − 10) and serological ELISA tests were performed for virus detection. GFLV was detected in five samples (4.06%), GLRaV-1 was detected in six samples (4.87%), while GLRaV-2 was not detected in any of the analyzed grapevine samples. GLRaV-3 was present in five samples (4.06%). When infection rates were examined in relation to cultivars, GFLV was detected in Cardinal, Zalagyöngye, Black Muscat, Italian Riesling and Dornfelder. GRLaV-1 was detected in cultivars Cardinal, Black Muscat, Italian Riesling and Merlot, and GRLaV-3 in cultivars Othello and Italian Riesling. Based on these results, it can be concluded that GFLV and GRLaV-1 and GRLaV-3 are present in vineyards across Vojvodina Province and affect different grapevine cultivars. To effectively control virus infections and their spreading, continuous monitoring of these viruses and their vectors is required along with the planting of healthy propagation material.
在2021年5月和6月,共采集了123份葡萄叶片样本,分析了葡萄扇叶病毒(GFLV)和葡萄叶片相关病毒复合物-1、-2和-3中的3种病毒(分别为GRLaV-1、GRLaV-2和GRLaV-3)的感染情况。样本采集自整个伏伊伏丁那省(ba卡、巴纳特和斯雷姆)的商业葡萄园、小型后院葡萄园和葡萄藤苗圃。在对可能出现病毒感染症状的叶片组织进行取样时,遵循OEPP/EPPO取样方案。123份样本中,47份来自ba ka地区(ba ko Gradište−11、be ej−10、Temerin−15、Vrbas−1、Hajdukovo−10),50份来自Banat地区(Srpska Crnja−10、Vojvode Stepe−10、Čoka−10、Uljma−20),26份来自Srem地区(Šid−6、Banoštor−10、Sremski Karlovci−10),采用血清学ELISA检测病毒。5份葡萄样本中检测到GFLV(4.06%), 6份样本中检测到glrav1(4.87%),而glrav2未在所有分析的葡萄样本中检测到。glrav3在5份样本中存在(4.06%)。在不同品种的侵染率检测中,在红衣主教、Zalagyöngye、黑马斯喀特、意大利雷司令和多恩菲尔德中检测到GFLV。GRLaV-1在红衣主教、黑马斯喀特、意大利雷司令和梅洛中检测到,GRLaV-3在奥赛罗和意大利雷司令中检测到。结果表明,GFLV、GRLaV-1和GRLaV-3均存在于伏伊伏丁那省的葡萄园中,并对不同葡萄品种产生影响。为了有效地控制病毒感染及其传播,在种植健康繁殖材料的同时,需要对这些病毒及其载体进行持续监测。
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引用次数: 0
Assessment of Farmers’ Perception Towards the Usage of Banned Agrochemicals: Case Study of Amaranth Farmers in Ekiti State, Nigeria 评估农民对禁用农药使用的看法:尼日利亚埃基蒂州苋菜农民的案例研究
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0006
S. Ogunjimi, Samuel Victor-Sunday
Summary The study assessed farmers’ perception towards the usage of banned agrochemicals in Ekiti State, Nigeria. A multistage sampling procedure was used to select one hundred and twenty farmers from three amaranth producing Local Government Areas of Ekiti state. The average age of the farmers was 41, with the majority (81.7%) of male farmers. The average years of schooling was approximately 10 years with an average annual income of 212,000 Naira (600 US Dollar). The study showed that 85% of the vegetable farmers obtained information on the use of agrochemicals from sales agents (agrochemicals retailers), 77.5% from fellow farmers and 32.5% from extension workers. The study further revealed that the majority of the amaranth farmers (99.2%) were aware that some agrochemicals had been banned. All the respondents were using agrochemicals for production of amaranth and farmers also indicated that they still used some of banned chemicals such as Gammalin (87%), Dichloro-diphenyl-trichloroethane (DDT) (17%) and Aldrin (16%). The farmers used banned agrochemicals because they perceived them as effective in the pest and disease control (98%), inexpensive (66%), available in the market (59%) and because of advice given by sales agents (58%). The findings revealed that the amaranth farmers have a high level of awareness of the negative effects produced by continuous usage of banned agrochemicals, while the majority of the farmers continuously use them. Therefore, the study highlights the need for adequate registration of all approved agrochemicals by the competent agency. Also, enlightenment campaigns by extension agents on the effects of banned agrochemicals need to be organised for amaranth farmers and sellers, as well as suppliers of agrochemicals. Finally, banned agrochemicals should not be allowed into the country by the federal Ministry of Agriculture and Federal Environmental Protection Agency (FEPA).
该研究评估了尼日利亚埃基蒂州农民对禁用农用化学品使用的看法。采用多阶段抽样程序,从埃基蒂州三个生产苋菜的地方政府区选择了120名农民。农民平均年龄41岁,以男性农民居多(81.7%)。平均受教育年限约为10年,平均年收入为212,000奈拉(600美元)。研究表明,85%的菜农从销售代理商(农药零售商)那里获得农用化学品的使用信息,77.5%从其他农民那里获得,32.5%从推广人员那里获得。该研究进一步显示,大多数种植苋菜的农民(99.2%)知道一些农用化学品已被禁用。所有答复者都在使用农用化学品生产苋菜,农民还表示,他们仍在使用一些被禁用的化学品,如Gammalin(87%)、二氯二苯三氯乙烷(DDT)(17%)和Aldrin(16%)。农民使用禁用的农用化学品是因为他们认为这些化学品在防治病虫害方面有效(98%)、价格低廉(66%)、市场上有售(59%)以及听从销售代理的建议(58%)。调查结果显示,苋菜农民对持续使用禁用农药产生的负面影响有很高的认识,而且大多数农民持续使用这些农药。因此,该研究强调了主管机构对所有批准的农用化学品进行充分登记的必要性。此外,推广机构需要为苋菜农民和销售商以及农用化学品供应商组织关于禁用农用化学品影响的启蒙运动。最后,联邦农业部和联邦环境保护局(FEPA)不应该允许被禁止的农用化学品进入该国。
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引用次数: 0
Analysis of Wet Periods in Vojvodina Province Using Standardized Precipitation Index 基于标准化降水指数的伏伊伏丁那省湿润期分析
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0007
Milica Stajić, M. Vranešević, A. Bezdan, B. Blagojević
Summary In this study, wet periods were analyzed using the Standardized Precipitation Index (SPI) on timescales of 3, 6 and 12 months (SPI3, SPI6 and SPI12) at eight stations in Vojvodina Province during the period 1971-2019. The obtained results show that there were very wet years in the observed period, so that regular maintenance of drainage channels is of great importance. Also, in order to illustrate the wet periods for the area of Vojvodina, maps for a timescale of 6 months (SPI6) were made for the vegetation season (April-September) of 2010. By analyzing the maps, it can be concluded that there were four categories of humidity conditions occurring in the observed period – from normal humidity conditions through moderate to very humid and extremely humid conditions.
利用标准化降水指数(SPI)对伏伊伏丁那省8个站点1971-2019年3、6和12个月时间尺度(SPI3、SPI6和SPI12)的湿期进行了分析。结果表明,在观测期内存在多雨年份,因此定期维护排水通道具有重要意义。此外,为了说明伏伊伏丁那地区的湿润期,绘制了2010年植被季节(4 - 9月)的6个月时间尺度(SPI6)地图。通过对地图的分析,可以得出结论,在观测期间发生了四类湿度条件-从正常湿度条件到中等湿度到非常潮湿和极端潮湿的条件。
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引用次数: 0
Phenotypic Correlations Between Egg Quality Traits Amid the Laying Phase of Broiler Breeder Hens 肉种鸡产蛋期蛋品质性状的表型相关性
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0003
M. Vekić, Đ. Savić, S. Jotanović
Summary In order to determine phenotypic correlations between the quality traits of eggs from 41-week-old broiler breeder hens (Cobb 500), a total of 105 eggs suitable for incubation were analyzed using descriptive statistics and Pearson’s correlation coefficient. The average values of egg weight, egg length, egg width, egg shape index, shell thickness, shell weight, and shell ratio were 66.90 g, 60.00 mm, 44.81 mm, 74.70%, 0.37 mm, 6.07 g, and 9.07%, respectively. Moreover, the average values of yolk weight, albumen weight, yolk ratio, albumen ratio, Haugh units, yolk index, and yolk-to-albumen ratio were 20.04 g, 40.80 g, 29.97%, 60.95%, 82.12, 46.17%, and 0.49, respectively. A significant positive correlation (p < 0.01) was found between the egg weight and the egg length (0.75), egg width (0.80), shell (0.55), yolk (0.60), albumen weight (0.91), and albumen ratio (0.25). However, a significant negative correlation (p < 0.01) was found between the egg weight and both the yolk ratio (-0.20) and yolk-to-albumen ratio (-0.23). The egg shape index proved not to be significantly correlated with any of the internal egg quality traits considered. The shell thickness was in a significant positive correlation (p < 0.01) with the shell weight (0.83) and ratio (0.86), whereas a significant negative correlation (p < 0.05) was found between the shell thickness and yolk ratio (-0.23). The Haugh units were in a significant positive correlation (p < 0.05) with the albumen ratio (0.24) and yolk index (0.27), whereas a significant negative correlation (p<0.05) was found between the Haugh units and both the yolk ratio (-0.22) and yolk-to-albumen ratio (-0.23). The results obtained confirm significant phenotypic correlations not only between egg weight and the egg quality traits considered, but also between a number of external and internal quality traits of broiler hatching eggs.
为了确定41周龄Cobb 500肉用种鸡鸡蛋品质性状之间的表型相关性,采用描述性统计和Pearson相关系数对105个适宜孵化的鸡蛋进行了分析。蛋重、蛋长、蛋宽、蛋形指数、壳厚、壳重和壳比的平均值分别为66.90 g、60.00 mm、44.81 mm、74.70%、0.37 mm、6.07 g和9.07%。蛋黄重、蛋白重、蛋黄比、蛋白比、哈夫单位、蛋黄指数和蛋黄蛋白比的平均值分别为20.04 g、40.80 g、29.97%、60.95%、82.12、46.17%和0.49。蛋重与蛋长(0.75)、蛋宽(0.80)、蛋壳(0.55)、蛋黄(0.60)、蛋白重(0.91)、蛋白比(0.25)呈极显著正相关(p < 0.01)。但蛋重与蛋黄比(-0.20)和蛋黄蛋白比(-0.23)均呈极显著负相关(p < 0.01)。蛋形指数与所考虑的任何内部品质性状均无显著相关。蛋壳厚度与蛋壳重(0.83)和蛋黄比(0.86)呈极显著正相关(p < 0.01),与蛋黄比(-0.23)呈极显著负相关(p < 0.05)。哈氏单位与蛋白比(0.24)和蛋黄指数(0.27)呈显著正相关(p<0.05),与蛋黄比(-0.22)和蛋黄蛋白比(-0.23)呈显著负相关(p<0.05)。结果证实了蛋重与所考虑的蛋品质性状之间存在显著的表型相关性,而且在肉鸡孵化蛋的许多外部和内部品质性状之间也存在显著的表型相关性。
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引用次数: 0
Evaluation of and Variability in Yields and Yield Components of Wheat Cultivars in Northern Serbia 塞尔维亚北部小麦品种产量和产量构成的评价及其变异
Pub Date : 2022-05-31 DOI: 10.2478/contagri-2022-0018
Maja Šumaruna, S. Mikić, V. Mladenov, J. Bocanski, Rada Šućur, D. Trkulja
Summary The purpose of this research is to examine the variability in yields and yield components of wheat cultivars in Northern Serbia, examine and visualize their groupings and relationships, and determine the correlations between their traits using principal components analysis (PCA). A total of fifteen wheat genotypes (Triticum aestivum L.), developed in 10 different countries over a period exceeding 70 years, were analyzed during the growing seasons of 2018/2019 and 2019/2020 at Rimski šančevi, the experimental station of the Institute of Field and Vegetable Crops in Novi Sad. A phenotypic analysis was performed for the following wheat traits: spike weight, number of spikelets per spike, number of grains per spike, thousand grain weight, and grain yield. Data analysis was performed using descriptive statistics, an analysis of variance, a correlation analysis for interactions between the traits considered, and PCA. The results obtained indicate significant differences between the genotypes according to all the traits examined. The correlation analysis revealed significant positive correlations between the yields produced and nearly all yield components. The PCA confirmed the relationship between the traits examined, grouped the genotypes according to their performance, and highlighted the genotypes eligible for future breeding and research.
本研究的目的是研究塞尔维亚北部小麦品种的产量和产量组成的变异性,检查和可视化它们的分组和关系,并使用主成分分析(PCA)确定它们性状之间的相关性。诺维萨德大田和蔬菜作物研究所的Rimski šančevi实验站在2018/2019和2019/2020生长季对10个不同国家70多年来开发的15种小麦基因型(Triticum aestivum L.)进行了分析。对小麦的穗重、穗粒数、穗粒数、千粒重和产量等性状进行了表型分析。数据分析使用描述性统计、方差分析、所考虑性状之间相互作用的相关分析和主成分分析。结果表明,在所检测的所有性状中,基因型之间存在显著差异。相关分析显示,产量与几乎所有产量成分之间均呈显著正相关。主成分分析证实了各性状之间的关系,并根据其表现对基因型进行了分组,突出了适合未来育种和研究的基因型。
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Contemporary Agriculture
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