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Commentary: Institutionalizing Agricultural Ethics 评论:农业伦理制度化
IF 1.7 Q4 AGRONOMY Pub Date : 2023-12-30 DOI: 10.37801/ajad2023.20.2.p2
R. Zimdahl
When something is institutionalized, it is established as a convention or norm of an organization or culture. Most professional disciplines have institutionalized and published their professional ethical expectations. Universities routinely include ethical study in the curriculum for medicine, law, business, and the environment. The agricultural science curriculum lacks consideration and study of the effects of agriculture’s ethical dilemmas on society. Moreover, agriculture, the essential human activity and the most widespread human interaction with the environment, needs a defined moral foundation. Ethics has not been institutionalized in US land-grant universities with agricultural colleges,2 colleges of agriculture in other countries, agricultural professional organizations, or the agribusiness industry. That is not to say there are no professional ethical standards. Examining agriculture’s ethical base and the reasons for it is an exercise in reason to find where the weight of reason rests (Rachels and Rachels 2007). Many assume agriculture has had an adequate ethical foundation. The assumption is not questioned. There has been too little investigation and too little critical thinking about the lack of and need for an explicit ethical foundation.
当某件事被制度化时,它就被确立为一个组织或文化的惯例或规范。大多数专业学科都已将其职业道德期望制度化并公布于众。大学通常会将伦理研究纳入医学、法律、商业和环境课程。农业科学课程缺乏对农业伦理困境对社会影响的考虑和研究。此外,农业作为人类的基本活动和人类与环境最广泛的互动,需要一个明确的道德基础。美国设有农业学院的赠地大学、2 其他国家的农业学院、农业专业组织或农业综合企业尚未将伦理制度化。这并不是说没有职业道德标准。研究农业的道德基础及其原因是一项理性工作,以找到理性的重心所在(Rachels 和 Rachels,2007 年)。许多人认为农业有充分的道德基础。这一假设没有受到质疑。对于缺乏明确的伦理基础以及是否需要这种基础的问题,人们很少进行调查,也很少进行批判性思考。
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引用次数: 0
Digital Technology Adoption and Potential in Southeast Asian Agriculture 东南亚农业采用数字技术的情况和潜力
IF 1.7 Q4 AGRONOMY Pub Date : 2023-12-29 DOI: 10.37801/ajad2023.20.2.2
J. M. L. Montesclaros, Paul S. Teng
While the rural agriculture sector has traditionally been seen as backward relative to the urban industrial and services sectors, it is a potential “low-hanging fruit” ripe for a much-needed digital transformation for agricultural development. ASEAN has seen a U-turn in progress in addressing undernourishment as early as 2014–16, owing to multiple factors. These include climate change which impacts have led to a slowdown in agricultural yield growth amidst growing consumption requirements. Digital technologies are important in adapting the agriculture sector to climate change and rising demand for it to serve as a key sector for food security, income, trade, and employment in the region. However, adoption of digital technologies in agriculture within the region is still relatively nascent, partly because of a general lack of understanding of such technologies and how they contribute to agricultural development. Also lacking is a common framework for understanding and classifying the relevance of such technologies. Thus, this article proposes a common framework and narrates how it was developed and used in facilitating discussions that helped develop the 2021 ASEAN Guidelines on Promoting the Utilization of Digital Technologies for ASEAN Food and Agricultural Sector. We draw insights from our earlier work on the state of adoption of digital technologies in agriculture in the region and give an overview of key challenges and policy opportunities for scaling up.
虽然相对于城市工业和服务业而言,农村农业部门历来被视为落后部门,但它是一个潜在的 "低垂果实",亟需通过数字化转型促进农业发展。早在 2014-16 年,东盟在解决营养不良问题方面的进展就出现了转折,这是由多种因素造成的。这些因素包括气候变化,其影响导致在消费需求不断增长的情况下农业产量增长放缓。数字技术对于使农业部门适应气候变化和不断增长的需求非常重要,因为它是该地区粮食安全、收入、贸易和就业的关键部门。然而,本地区农业领域采用数字技术的情况仍相对较少,部分原因是人们普遍缺乏对这些技术及其如何促进农业发展的了解。此外,还缺乏一个共同的框架来理解和分类这些技术的相关性。因此,本文提出了一个共同框架,并介绍了该框架是如何制定并用于促进讨论,从而帮助制定《2021 年东盟促进东盟粮食和农业部门利用数字技术指南》的。我们从早先关于本地区农业采用数字技术情况的工作中汲取了深刻的见解,并概述了扩大数字技术应用所面临的主要挑战和政策机遇。
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引用次数: 0
A Soil Analysis Approach to Assessing Potential Loss of Productive Lands Under Agricultural Land Conversion 采用土壤分析方法评估农业用地转换中生产用地的潜在损失
IF 1.7 Q4 AGRONOMY Pub Date : 2023-12-29 DOI: 10.37801/ajad2023.20.2.6
Jordan G. Calura, R. B. Badayos, Jessica Villanueva-Peyraube, Jocelyn D. Labios
Land provides physical space and is usually required for various sectoral developments needed to meet the needs of increasing population. Land is a finite natural resource; thus, conflict arises over land use and development. The strategic location of the municipality of Pura in Tarlac province, Philippines within the urban beltway of Central Luzon and the recent opening of the Tarlac–Pangasinan–La Union Expressway provide Pura excellent opportunities for urban and industrial development. However, the precursor to this is agricultural land conversion (ALC), which can change or reduce in the area of productive lands. This paper assessed the degree of productivity of the agricultural lands in the study area that are predisposed to ALC using FAO’s land suitability framework and the revised Storie index for soil productivity. Soil survey and composite soil sampling at 20 cm depth in the selected 34 sampling points were done to analyze the relevant soil physical and chemical properties. Five soil mapping units (SMU) were grouped based on the soil surface texture. The results show that the SMUs are only marginally suitable (S3f) for producing rice and other crops due to their current low soil organic carbon content. However, these SMUs can be highly suitable (S1) for crop production with appropriate soil management. Using the Storie index, the entire tract of land of Pura has an index rating of 58 percent, which corresponds to a grade 3 soil suitable for planting a number of crops with expected good results. The results of the land suitability evaluation and soil productivity assessment further show that the land in the municipality of Pura is productive, and thus can benefit both agricultural production and ALC. As such, whichever spatial strategy or policy direction for ALC that the municipal government chooses to adopt, the municipality of Pura will lose productive land.
土地提供了实际空间,通常需要用于各种部门的发展,以满足日益增长的人口需求。土地是一种有限的自然资源,因此在土地使用和开发方面会产生冲突。菲律宾塔拉克省普拉市位于吕宋岛中部城市带的战略位置,最近塔拉克-邦阿西楠-拉乌尼翁高速公路的开通为普拉市提供了城市和工业发展的绝佳机会。然而,农业用地转换(ALC)是实现这一目标的先决条件,它会改变或减少生产用地的面积。本文采用联合国粮农组织的土地适宜性框架和修订后的土壤生产力 Storie 指数,评估了研究区内有可能发生农用地转用的农用地的生产力水平。在选定的 34 个取样点进行了土壤调查和 20 厘米深的复合土壤取样,以分析相关的土壤物理和化学特性。根据土壤表层纹理划分了五个土壤制图单元(SMU)。结果表明,由于目前土壤有机碳含量较低,这些土壤制图单元只略微适合(S3f)生产水稻和其他作物。然而,如果进行适当的土壤管理,这些 SMU 将非常适合(S1)作物生产。根据 Storie 指数,Pura 整片土地的指数等级为 58%,相当于 3 级土壤,适合种植多种作物,预期效果良好。土地适宜性评估和土壤生产力评估的结果进一步表明,普拉市的土地具有生产力,因此既有利于农业生产,也有利于 ALC。因此,无论市政府选择采用哪种 ALC 空间战略或政策方向,普拉市都将失去高产土地。
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引用次数: 0
Feeding the Future: Knowledge and Perceptions of the Filipino Youth Toward Agriculture 喂养未来:菲律宾青年对农业的认识和看法
IF 1.7 Q4 AGRONOMY Pub Date : 2023-12-29 DOI: 10.37801/ajad2023.20.2.3
Kringle Marie P. Mercado, Henny Osbahr
Cognizant of the critical role the youth could play to sustain, develop, and build a sustainable, resilient, and inclusive agriculture industry, this study was conceptualized to establish a thorough understanding of the determinants of the Filipino youth’s intention to enroll in agricultural degree programs. This research assessed the younger generation’s agricultural learning experiences and explored their perception of the agriculture industry and evaluated how these different factors affected the shaping of their uptake of agricultural courses. The study utilized a case study approach in the local context of General Santos City, Philippines. The key findings reveal that while the youth report high exposure to agricultural information, these have not been translated into inherent knowhow; they attained only average scores in the assessment of their agricultural knowledge. They also have limited knowledge or familiarity with agricultural professions. In addition, the majority held positive economic, social, and personal perceptions toward the industry. However, they expressed reservations in considering if employment opportunities in the sector are profitable, if the society will hold them in high regard once they engage in the sector, and if they have the suitable skills and know-how to engage in the sector. Statistically, age, social participation, and personal perceptions were found positively significant (p<0.05), while economic perceptions were negatively significant (p<0.05) in determining the youth’s intention to enroll in agricultural programs and ultimately engage in agriculture. Thus, it is inferred that intervention programs, starting early in the curriculums of the youth, along with social programs that highlight capacity building, are necessary to pique their interest toward the industry and entice them to engage in its professions.
认识到青年在维持、发展和建设一个可持续、有韧性和包容性的农业产业方面可以发挥的关键作用,本研究的构想是要全面了解菲律宾青年是否有意报读农业学位课程的决定因素。本研究评估了年轻一代的农业学习经历,探讨了他们对农业产业的看法,并评估了这些不同因素如何影响他们对农业课程的学习。本研究在菲律宾桑托斯将军城采用了案例研究法。主要研究结果表明,虽然青年接触农业信息的机会较多,但这些信息并未转化为固有的专门知识;他们在农业知识评估中仅获得平均分。他们对农业职业的了解或熟悉程度也很有限。此外,大多数人对农业的经济、社会和个人看法是积极的。但是,他们在考虑该行业的就业机会是否有利可图、一旦从事该行业社会是否会给予他们很高的评价,以及他们是否具备从事该行业的适当技能和诀窍等问题上持保留意见。从统计学角度看,年龄、社会参与和个人认知在决定青年是否有意参加农业项目并最终从事农业方面具有积极意义(P<0.05),而经济认知在决定青年是否有意参加农业项目并最终从事农业方面具有消极意义(P<0.05)。因此,有必要从青少年课程的早期开始实施干预计划,同时实施强调能力建设的社会计划,以激发他们对农业的兴趣,吸引他们从事农业职业。
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引用次数: 0
Transition from Agriculture to Non-Agriculture Occupations in West Bengal, India: Causes and Way Forward 印度西孟加拉邦从农业向非农业职业的过渡:原因与前进方向
IF 1.7 Q4 AGRONOMY Pub Date : 2023-12-29 DOI: 10.37801/ajad2023.20.2.4
Apurba Kumar Chattopadhyay, Raj Kumar Kundu
This empirical study reveals that agriculture in West Bengal, a major state in India, is nonviable as a primary source of occupation for most agricultural households who have been distressed to diversify to the nonfarm sector. However, the underdeveloped rural nonfarm sector does not leave enough economic space for the distressed farmers to have a smooth and remunerative transition from agricultural to nonagricultural employment. Therefore, most farmers end up clinging precariously to the agriculture sector while engaging in nonremunerative activities in the rural nonfarm sector for sustenance. This article identifies several statistically significant drivers of employment diversification through a logit model and revisited the age-old farm-size agricultural productivity debate in India to conclude that agricultural production is not scale-neutral. Therefore, to make agriculture viable and sustainable, the average operational landholdings need to increase through reverse tenancy and/or cooperative farming and through creating gainful employment opportunities in the rural nonfarm sector. This will help farm-dependent, semi-marginal, and marginal agricultural households to transition from agricultural to nonagricultural occupations.
这项实证研究揭示,在印度的一个大邦西孟加拉邦,农业作为大多数农户的主要职业来源已无法生存,这些农户已陷入向非农产业多元化发展的困境。然而,欠发达的农村非农产业并没有给受困农民留下足够的经济空间,使他们无法顺利地从农业就业过渡到非农业就业,并获得相应的报酬。因此,大多数农民最终只能勉强留在农业部门,同时在农村非农部门从事无报酬的活动以维持生计。本文通过 logit 模型确定了就业多样化的几个具有统计意义的驱动因素,并重新审视了印度由来已久的农场规模农业生产率争论,得出结论认为农业生产并非规模中立。因此,为了使农业具有生存能力和可持续性,需要通过反向租赁和/或合作耕作以及在农村非农业部门创造有报酬的就业机会来增加平均经营土地保有量。这将有助于依赖农业的半边缘和边缘农户从农业职业向非农业职业过渡。
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引用次数: 0
Economic and Profitability Analysis of Walnut Production in Kashmir Valley, India 印度克什米尔山谷核桃生产的经济和盈利能力分析
IF 1.7 Q4 AGRONOMY Pub Date : 2023-11-28 DOI: 10.37801/ajad2023.20.2.p3
F. Lone, M. Ganaie, Showkat A. Ganaie, J. A. Rather, M. S. Bhat
The Jammu and Kashmir union territory is the largest producer of walnuts in India, and this crop provides an important source of livelihood for many farmers. This study aims to measure the economic efficiency and profitability of walnut orchards and explore constraints in cultivation in the Kashmir Valley. It relies on a crosssectional database collected from 240 walnut growers in the study area during the 2018/19 production period. Results reveal that walnut cultivation is highly labor-intensive as it incurs 80 percent of total production costs. The cost-benefit ratio of 1:5.35 per hectare indicates better economic prospects for the walnut industry in Kashmir Valley. The factors affecting productivity include farmyard manure, labor, chemical fertilizers, plant density, women participation, and information. The regression coefficients of production analysis, marginal value product, and marginal factor cost ratio indicate that there is ample scope for the expansion of walnut cultivation in the research area. However, walnut growers are confronted by several problems that tend to be location specific. The study calls for policy intervention concerning improved access to extension services, credit, and farmer training programs to boost walnut production in the study region.
查谟和克什米尔联邦领地是印度最大的核桃生产地,这种作物为许多农民提供了重要的生计来源。本研究旨在衡量核桃园的经济效益和盈利能力,并探讨克什米尔山谷种植中的制约因素。它依赖于从研究地区 240 名核桃种植者处收集的 2018/19 年生产期横截面数据库。结果显示,核桃种植是高度劳动密集型的,因为它产生了总生产成本的 80%。每公顷 1:5.35 的成本效益比表明,克什米尔山谷的核桃产业具有较好的经济前景。影响生产率的因素包括农家肥、劳动力、化肥、种植密度、妇女参与和信息。生产分析、边际价值产品和边际要素成本率的回归系数表明,研究地区的核桃种植有很大的扩展空间。然而,核桃种植者面临着一些往往因地制宜的问题。这项研究呼吁采取政策干预措施,改善获得推广服务、信贷和农民培训计划的机会,以提高研究地区的核桃产量。
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引用次数: 0
Back in the Soup: Now What? 回到汤里:现在怎么办?
IF 1.7 Q4 AGRONOMY Pub Date : 2023-09-20 DOI: 10.37801/ajad2023.20.2.p1
C. P. Timmer
This article for AJAD presents the outlook for the world rice market as of early September 2023. It builds on my AJAD article from a year ago and on multiple articles in the East Asia Forum. A year ago, the world was facing a severe food crisis. All the ingredients for significant shortages of food grains and vegetable oils were already boiling. An article in this journal at the time asked how to manage such a crisis (Timmer 2022). The answer was a series of steps designed to build confidence in the availability of supplies. Leadership was sought from Indonesia, chair of the G20 in 2022, and soon to be chair of ASEAN2. Indonesia had deep and long experience managing food crises facing its own economy. The hope was that this experience, plus President Joko Widodo’s diplomatic skills, could deliver a G203 consensus declaration at the Bali Summit in November 2022. If clear, substantive, and politically feasible steps were laid out in the declaration, the signatories could return home with some confidence that food prices would not spiral out of control. By stabilizing expectations about food prices, the need for panicked hoarding would be minimized. Somewhat higher prices were inevitable, but sharp spikes might be avoided. Indonesia delivered (Editorial Board, ANU 2023a). World food markets remained relatively calm, rice prices actually declined for several months, and the world’s consumers breathed a bit easier. But the breathing space was short-lived. A combination of factors, especially the ramped-up attacks by Russia on Ukrainian food export infrastructure and the emergence of a vigorous El Niño in Asian rice bowls, has led to renewed concerns about an impending food crisis. This time the focus is on rice, rather than wheat, maize, and vegetable oils. But rice is increasingly the “food of the poor” in Asia and in Africa (Timmer 2013). A spike in rice prices will cause widespread hunger.
这篇为 AJAD 撰写的文章介绍了 2023 年 9 月初世界大米市场的前景。这篇文章以我一年前在《亚洲日报》上发表的文章和《东亚论坛》上发表的多篇文章为基础。一年前,世界正面临严重的粮食危机。粮食和植物油严重短缺的所有因素已经沸沸扬扬。当时,本刊的一篇文章提出了如何管理这样一场危机的问题(Timmer 2022)。答案是采取一系列旨在建立供应信心的措施。印尼是 2022 年 20 国集团主席国,不久将担任东盟 2 国主席国,因此需要印尼发挥领导作用。印尼在管理本国经济面临的粮食危机方面有着深厚而长期的经验。希望这一经验加上佐科-维多多总统的外交技巧,能在 2022 年 11 月的巴厘岛峰会上达成 203 国集团共识宣言。如果宣言中提出了明确、实质性和政治上可行的措施,那么签署国在回国时就会有一些信心,相信粮食价格不会失控。通过稳定对粮食价格的预期,恐慌性囤积的必要性将降到最低。价格略高是不可避免的,但可能会避免急剧飙升。印度尼西亚实现了这一目标(ANU 2023a 编辑委员会)。世界粮食市场保持相对平静,大米价格在几个月内实际上有所下降,世界消费者稍稍松了一口气。但这种喘息空间是短暂的。一系列因素,特别是俄罗斯加紧攻击乌克兰粮食出口基础设施以及亚洲稻米市场出现强劲的厄尔尼诺现象,导致人们再次担心粮食危机即将来临。这次的焦点是大米,而不是小麦、玉米和植物油。但在亚洲和非洲,大米正日益成为 "穷人的粮食"(Timmer,2013 年)。大米价格飙升将导致大范围的饥饿。
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引用次数: 0
Biodiversity of edible fruit sold at Pasar Gede, Surakarta City, Central Java, Indonesia 在印尼中爪哇苏拉塔市Pasar Gede出售的可食用水果的生物多样性
IF 1.7 Q4 AGRONOMY Pub Date : 2023-04-05 DOI: 10.13057/asianjagric/g070108
Dhea Gita Fitri Sagitarian, Luna Astikasari, Dita Rahmayani, Muhammad Fadhillah Armando, G. D. Nugroho, W. Himawan, A. Z. Mutaqin, A. Setyawan
Abstract. Sagitarian DGF, Astikasari L, Rahmayani D, Armando MF, Nugroho GD, Himawan W, Mutaqin AZ, Md. Naim D, Setyawan AD. 2023. Biodiversity of edible fruit sold at Pasar Gede, Surakarta City, Central Java, Indonesia. Asian J Agric 7: 57-68. The market is a place to purchase numerous varieties of goods. Pasar Gede is a traditional Indonesian marketplace in Surakarta City, Central Java, Indonesia. It is the earliest and the largest fruit market in Surakarta. This study was conducted to ascertain the variety species of fruits sold at Pasar Gede from 12 to 16 December 2022. Direct interviews with Pasar Gede administrators and sellers conducted the sampling. This study uses primary data from interviews and secondary data from literature studies to support the primary data, while descriptive analysis was performed on the collected data. The results revealed that the fruit sold at Pasar Gede comprised 82 species from 25 families, with information on local name, price, seasonality, rarity according to vendors, and conservation status according to the IUCN Red List. In Pasar Gede, fruits with conservation status Least Concern (LC) based on the IUCN Red List were found, namely juwet (Syzygium cumini (L.) Skeels), matoa (Pometia pinnata J.R.Forst. & G.Forst.), jambu biji (Psidium guajava L.), pir packham (Pyrus communis L.), srikaya (Annona squamosa L.), jeruk bali (Citrus maxima (Burm.) Merr.), delima arab (Punica granatum L.), sirsak (Annona muricata L.), sawo (Manilkara zapota (L.) P.Royen), asam jawa (Tamarindus indica L.) and kesemek (Diospyros kaki L.f.). Jeruk (Citrus sp.), apel/pir (Pyrus sp.), pisang (Musa sp.), mangga (Mangifera sp.), and alpukat (Persea sp.) are the dominant fruits (the most available and frequently sold by every vendor in his stall) in Pasar Gede. Anggur autum (Vitis vinifera L. cv. autumn) are the most expensive products at 180,000 IDR per kilogram, while jambu biji is the least expensive at 8,000 IDR per kilogram. The production cost, seasonality, and fruit quality determine whether fruit prices are costly. The abundance of fruit indicates that Pasar Gede is a comprehensive fruit market center in Indonesia, particularly in Surakarta.
摘要Sagitarian DGF, Astikasari L, Rahmayani D, Armando MF, Nugroho GD, Himawan W, Mutaqin AZ, Md. Naim D, Setyawan AD2023. 在印尼中爪哇苏拉塔市Pasar Gede出售的可食用水果的生物多样性。农业学报7:57-68。市场是购买各种商品的地方。Pasar Gede是印尼中爪哇省苏拉卡塔市的一个传统印尼市场。这是泗水最早也是最大的水果市场。这项研究是为了确定2022年12月12日至16日在Pasar Gede销售的水果品种。对Pasar Gede的管理人员和卖家进行了直接采访。本研究使用访谈的一手数据和文献研究的二手数据来支持一手数据,同时对收集到的数据进行描述性分析。结果显示,在Pasar Gede出售的水果包括25科82个品种,并提供了当地名称、价格、季节性、商贩的稀有程度以及根据IUCN红色名录的保护状况等信息。在Pasar Gede,发现了IUCN红色名录中保护地位最低的水果,即juwet (Syzygium cumini (L.))。骨),matoa (pomtia pinnata j.r.f罗斯特。), jambu biji (Psidium guajava L.), pir packham (Pyrus communis L.), srikaya (Annona squamosa L.), jeruk bali (Citrus maxima (Burm.))), delima arab (Punica granatum L.), sirsak (Annona muricata L.), sawo (Manilkara zapota (L.))(P.Royen), asam jawa(柽柳)和kesemek (Diospyros kaki L.f)。Jeruk (Citrus sp.), apel/pir (Pyrus sp.), pisang (Musa sp.), mangga (Mangifera sp.)和alpukat (Persea sp.)是Pasar Gede的主要水果(每个摊贩在他的摊位上最容易获得和经常出售)。秋葡萄(Vitis vinifera L. cv.)秋季)是最昂贵的产品,每公斤18万印尼盾,而jambu biji最便宜,每公斤8000印尼盾。生产成本、季节性和水果质量决定了水果价格是否昂贵。丰富的水果表明Pasar Gede是印度尼西亚的综合水果市场中心,特别是在泗水。
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引用次数: 0
Evaluation of several fungicides on mycelial growth and conidial germination of Alternaria species causing leaf spots in sunflowers under in vitro conditions 几种杀菌剂对向日葵斑孢菌菌丝生长和分生孢子萌发的影响
IF 1.7 Q4 AGRONOMY Pub Date : 2023-02-24 DOI: 10.13057/asianjagric/g070106
J. Muljowati, Arif Rahman Hikam
Abstract. Muljowati J, Hikam AR. 2023. Evaluation of several fungicides on mycelial growth and conidial germination of Alternaria species causing leaf spots in sunflowers under in vitro conditions. Asian J Agric 7: 47-51. Alternaria leaf spot caused by Alternaria species is the most destructive disease of sunflowers. Fungicides, such as mancozeb, carbendazim, benomyl, propiconazole, and iprodione, are commonly used to control diseases. However, the continuous use of synthetic fungicides can cause pathogen resistance to these fungicides. Therefore, the aim of this study was to conduct an in vitro test on the effect of fungicides, such as benomyl, carbendazim, mancozeb, iprodione, and propiconazole, on the mycelial growth and germination of conidia of Alternaria species causing leaf spot on sunflower. The experiment was performed in a completely randomized design with factorial patterns. The first factor was the type of fungicide, namely benomyl, mancozeb, iprodione, carbendazim, and propiconazole. The second factor was the concentration level of the (0%, 25%, 50%, 75%, 100%, and 125%) recommended dose. Data were Analyzed of Variance (ANOVA) using SPSS 18 version. The results showed that Alternaria species were resistant to carbendazim (32.98%) and benomyl (40.32%). It also shows an intermediate level of resistance to mancozeb (62.59%), iprodione (65.38%), and sensitivity to propiconazole (78.38%). Based on the research results, the authors suggest sunflower farmers use propiconazole to control Alternaria species. However, such fungicides may trigger the use of fungicides with higher doses than the recommended dose. That led to the emergence of Alternaria species resistant to the fungicides benomyl, carbendazim, mancozeb, and iprodione.
摘要刘建军,刘建军。2008。几种杀菌剂对向日葵斑孢菌菌丝生长和分生孢子萌发的影响。农业学报7:47-51。由互花孢属植物引起的互花孢叶斑病是向日葵最具破坏性的病害。杀菌剂,如代森锰锌、多菌灵、苯甲酰、丙环唑和异丙二酮,通常用于控制疾病。然而,持续使用合成杀菌剂会导致病原体对这些杀菌剂产生耐药性。因此,本研究的目的是对苯甲酰、多菌灵、代森锰锌、异丙二酮、丙环康唑等杀菌剂对引起向日葵叶斑病的Alternaria菌菌丝生长和分生孢子萌发的影响进行体外试验。实验采用完全随机设计,采用因子模式。第一个因素是杀菌剂的类型,即苯甲酰、代森锰锌、异丙二酮、多菌灵和丙环唑。第二个因素是推荐剂量(0%、25%、50%、75%、100%和125%)的浓度水平。数据采用SPSS 18进行方差分析。结果表明,稻瘟菌对多菌灵(32.98%)和苯甲酰(40.32%)耐药;对代森锰锌(62.59%)、异丙二酮(65.38%)、丙环唑(78.38%)均呈中等耐药水平。根据研究结果,作者建议向日葵种植者使用丙环康唑来防治互花孢菌。然而,这类杀菌剂可能引发使用高于推荐剂量的杀菌剂。这导致了对杀菌剂苯虫胺、多菌灵、代森锰锌和异丙酮具有抗性的交替菌的出现。
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引用次数: 0
Molecular characterization of filamentous fungi associated with spoilage of sweet oranges sold in Choba Market, Port Harcourt, Nigeria 与尼日利亚哈科特港乔巴市场销售的甜橙腐败有关的丝状真菌的分子特征
IF 1.7 Q4 AGRONOMY Pub Date : 2023-02-24 DOI: 10.13057/asianjagric/g070107
C. Ikechi-Nwogu, B. Odogwu, Maria Adanima Edumasam
Abstract. Ikechi-Nwogu CG, Odogwu BA, Edumasam MA. 2023. Molecular characterization of filamentous fungi associated with spoilage of sweet oranges sold in Choba Market, Port Harcourt, Nigeria. Asian J Agric 7: 52-56. Post-harvest spoilage of sweet oranges is one of the major causes of post-harvest losses. This study was conducted to identify the fungi associated with post-harvest spoilage of sweet oranges using molecular techniques in Choba Markets, Rivers State, Nigeria. The DNA of the fungal isolate SO-1 and SO-2 were characterized using Internal Transcribed Spacer 4 and 5 molecular markers and aligned by the Basic Local Alignment Search Tool for Nucleotide (BLASTN) 2.8.0 of National Centre for Biotechnology Information (NCBI) database. Based on the sequence similarities, it was observed that isolate SO-1 was 98.96% identical to Neurospora crassa Shear & B.O.Dodge while SO-2 was 99.48% identical to Aspergillus flavus Link. These findings showed that N. crassa and A. flavus are some of the causal fungal pathogens of spoilt sweet oranges. It is anticipated that this result will provide information that will be helpful in the deployment of the appropriate post-harvest management of these fungi during post-harvest handling to minimize the spoilage of sweet oranges and thus reduce post-harvest losses.
摘要Ikechi-Nwogu CG, Odogwu BA, Edumasam MA。2023. 与尼日利亚哈科特港乔巴市场销售的甜橙腐败有关的丝状真菌的分子特征。农业学报,7:52-56。甜橙采后变质是造成采后损失的主要原因之一。本研究旨在利用分子技术鉴定与尼日利亚河流州乔巴市场甜橙收获后腐败相关的真菌。利用内部转录间隔物4和5分子标记对分离物SO-1和SO-2的DNA进行了鉴定,并利用美国国家生物技术信息中心(NCBI)数据库的Basic Local Alignment Search Tool for Nucleotide (BLASTN) 2.8.0进行了比对。结果表明,分离物SO-1与粗神经孢子菌(Neurospora crassa Shear)和B.O.Dodge的同源性为98.96%,分离物SO-2与黄曲霉(Aspergillus flavus Link)的同源性为99.48%。这些结果表明,草奈瑟菌和黄奈瑟菌是甜橙变质的致病真菌。预计这一结果将提供信息,有助于在收获后处理过程中对这些真菌进行适当的收获后管理,以尽量减少甜橙的腐败,从而减少收获后损失。
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Asian Journal of Agriculture and Development
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