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Bioactive Compounds and Biochemical and Antioxidant Properties of Selected Minor Indigenous Fruits in Bangladesh 孟加拉国几种小型乡土水果的生物活性化合物及其生化和抗氧化特性
Q3 Social Sciences Pub Date : 2021-01-25 DOI: 10.18488/journal.ajard.2021.111.35.46
Molla M.M, Sabuz A.A, C. M.G.F, Khan M.H.H., A. M, Nasrin T.A.A, K. A, Islam M.M
Minor fruits are a potential source of antinutrients, but there is no complete primary data source in the Bangladeshi context. Therefore, the present study was undertaken to acquire documentation for a database of the composition of selected minor fruits. The total phenolic (TPH), vitamin C, total carotene, and ß-carotene contents and antioxidant activity of selected minor fruits were determined by 1,1-diphenyl-2picryl hydrazyl (DPPH) scavenging and reducing power assays (RPA). Phenolic compounds were assessed using high-performance liquid chromatography coupled with a photodiode array detector and autosampler. Results revealed that minor fruits contain different phytochemicals, particularly TPH, ascorbic acid, total flavonoid (TF), ß-carotene, total carotenoid (TC), and total anthocyanin content (TAC); values ranged, respectively, 0.23-176.50 mg GAE/g, 16.67-664.92 mg/100 g, 2.26-150.02 mg QE/100 g, 1.41-6897.57 µg/100 g, 1.26-98.24 mg/100 g and 1.15-47.46 mg/100 g. In the parameters antioxidant activity, total antioxidant capacity, DPPH, reducing power capacity (RPC), ferric reducing antioxidant power (FRAP), metal chelating capacity (MCC), nitric oxide (NO), and free radical scavenging activity, IC50 ranged 0.01-278.24 µg of ascorbic acid/mg of extract, 39.70-250.00%, 3.21-634.00%, 0.02-1817.88 µM Fe2SO4/100g, 22.29-210.43%, 0.02-70.50%, and 4.98-856.70 µg/g, respectively. Among the identified and quantified phenolic acids, leading examples were gallic acid (279.06 mg/100 g), vanilic acid (43.77 mg/100 g), Þ-courmaric acid (178.96 mg/100 g), ferulic acid (20.44 mg/100 g), and lutein (91.13 µg/100 g) in aonla, day fruit, elephant apple, and bilimbi. Moreover, all selected minor fruits are rich sources of bioactive, biochemical, and antioxidant compounds with potential for use in therapeutic applications.
小水果是抗营养素的潜在来源,但在孟加拉国的情况下没有完整的原始数据来源。因此,进行本研究的目的是为选定的小水果组成的数据库获取文件。采用1,1-二苯基-2苦味酰肼(DPPH)清除率和还原力法(RPA)测定了所选小果实的总酚(TPH)、维生素C、总胡萝卜素和ß-胡萝卜素含量及抗氧化活性。采用高效液相色谱法结合光电二极管阵列检测器和自动进样器对酚类化合物进行了测定。结果表明,小果实含有不同的植物化学物质,尤其是TPH、抗坏血酸、总黄酮(TF)、ß-胡萝卜素、总类胡萝卜素(TC)和总花青素(TAC)含量;分别为0.23 ~ 176.50 mg GAE/g、16.67 ~ 664.92 mg/100 g、2.26 ~ 150.02 mg QE/100 g、1.41 ~ 6897.57µg/100 g、1.26 ~ 98.24 mg/100 g和1.15 ~ 47.46 mg/100 g。在抗氧化能力、总抗氧化能力、DPPH、还原能力(RPC)、铁还原能力(FRAP)、金属螯合能力(MCC)、一氧化氮(NO)和自由基清除能力等参数中,抗坏血酸/mg提取物的IC50分别为0.01 ~ 278.24µg、39.70 ~ 250.00%、3.21 ~ 634.00%、0.02 ~ 1817.88µM Fe2SO4/100g、22.29 ~ 210.43%、0.02 ~ 70.50%和4.98 ~ 856.70µg/g。鉴定和定量的酚酸主要为没食子酸(279.06 mg/100 g)、香草酸(43.77 mg/100 g)、Þ-courmaric酸(178.96 mg/100 g)、阿魏酸(20.44 mg/100 g)和叶黄素(91.13 μ g/100 g)。此外,所有选择的小水果都是生物活性,生化和抗氧化化合物的丰富来源,具有潜在的治疗应用价值。
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引用次数: 0
Analysis of Soil Texture, Furrow Geometry, and Infiltration Rate for Improving Water Application Efficiency 提高水分利用效率的土壤质地、沟槽几何形状和入渗速率分析
Q3 Social Sciences Pub Date : 2021-01-18 DOI: 10.18488/journal.ajard.2021.111.19.27
Duba Chena Dero, K. Kolhe
Soil texture, furrow geometry, and infiltration rate are the main characteristics for improving water application efficiency. Substantial amounts of diverted irrigation water are often lost because of poor water control, inefficient irrigation conveyance systems, poor on-farm water management, or poor application practices. Field experiments were conducted on three farm plots within the command area for water availability and accessibility under the Melka Hida small-scale irrigation scheme in the West Guji Zone of Oromia Region, Ethiopia. The physical characteristics of soil, including depth, particle distribution, textural classification, bulk density, field capacity, and permanent wilting point, were studied and the results are presented. Furrow parameters including slope, width, length, and shape geometry were measured. The cumulative infiltration and infiltration rates were also recorded. The results show that irrigation application efficiency ranged from 57 to 64% with an average of 61%, indicating that about 40% of the applied water was not used by crops. The storage efficiency ranged from 79.6 to 81.6% with an average of 80%. Soil moisture measurements showed that crops were water stressed during the experimental period. Application efficiency decreased with increasingly steep slopes and cutoff times, greater applied depth, and high inflow rate in the study area. Unavailability of irrigation water control structure, weakness of water users’ associations, and maintenance of furrows and steep slopes were observed as the major causes of inefficient water management in the Melka Hida irrigation scheme.
土壤质地、垄沟几何形状和入渗速率是提高水分利用效率的主要特征。由于水资源控制不善、灌溉输送系统效率低下、农田用水管理不善或应用方法不当,大量改道的灌溉用水经常流失。在埃塞俄比亚奥罗米亚州西古吉地区的Melka Hida小规模灌溉计划下,在指挥区内的三个农田进行了实地试验,以了解水的可利用性和可及性。研究了土壤的物理特性,包括深度、颗粒分布、质地分类、容重、田间容量和永久萎蔫点,并给出了结果。测量犁沟参数,包括坡度、宽度、长度和形状几何。同时记录了累积入渗和入渗速率。结果表明,灌溉水利用率在57% ~ 64%之间,平均为61%,表明约40%的灌溉水未被作物利用。存储效率范围为79.6 ~ 81.6%,平均为80%。土壤水分测量结果表明,试验期间作物处于水分胁迫状态。随着研究区域坡度和截止时间的增加、应用深度的增加和流入速率的增加,应用效率下降。在Melka Hida灌溉计划中,缺乏灌溉用水控制结构、用水户协会薄弱、沟槽和陡坡的维护是水管理效率低下的主要原因。
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引用次数: 1
Farmers Markets: An Analysis of the Determinants of Consumers Attitudes and Behavior 农贸市场:消费者态度和行为的决定因素分析
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.111.63.70
S. Solanki, Krishna Murthy Inumula
This research explores indicators of the attitudes, preferences, and features of customers who buy at farmers’ markets in India, using an intercept survey design. Single-stage purposive sampling was carried out in which consumers were targeted at weekend farmers’ markets at nine different locations within the state of Maharashtra, India. Over a 2-month period of data collection (eight weekend visits) a total of 255 consumers were interviewed on site at the time of purchase, from whom we collected 235 completed questionnaires. Consumers in the sample were divided into three clusters and were rated positively on all seven factors considered. The findings of the study are that in cluster 1, about 80% of consumers were willing to pay more at the farmers’ market rather than to go to a nearby retail outlet or supermarket. Cluster 2 comprised those consumers who prefer value for money while cluster 3 includes those consumers who gave a high rating to the hygiene and service conditions at the market. This research concludes that consumers are positive about the operation of farmers’ markets held near their home.
本研究探讨了在印度农贸市场购买的顾客的态度、偏好和特征的指标,采用了拦截调查设计。在印度马哈拉施特拉邦九个不同地点的周末农贸市场进行了单阶段有目的抽样,消费者为目标。在2个月的数据收集期间(8次周末访问),我们在购买时对255名消费者进行了现场访谈,从中我们收集了235份完整的问卷。样本中的消费者被分为三组,在所有考虑的七个因素上都得到了积极的评价。研究发现,在集群1中,大约80%的消费者愿意在农贸市场花更多的钱,而不是去附近的零售店或超市。集群2包括那些更喜欢物有所值的消费者,而集群3包括那些对市场的卫生和服务条件给予高评价的消费者。这项研究的结论是,消费者对在他们家附近举办的农贸市场的运作持积极态度。
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引用次数: 2
Enhancing Market Orientation of Cocoa Farmers through Farmer Business Schools: The Ghana Cocobod Experience 通过农民商学院提高可可农的市场导向:加纳可可农的经验
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.111.129.138
E. K. Tham-Agyekum, E. Okorley, J. Kwarteng, J. Bakang, F. Nimoh
The study sought to ascertain how the Farmer Business School (FBS) introduced in 2012 by the Ghana Cocoa Board as an extension approach makes the Ghanaian cocoa farmer more business and entrepreneurially minded. The research methods included using the descriptive survey and multi-stage sampling techniques to cover the six cocoa regions and 600 cocoa farmers. The 600 cocoa farmers selected were made up of 230 non-participants and 370 participants of the FBS. In terms of competency, the results showed that FBS participants had greater knowledge, a more positive attitude, and better skills than non-participants. In terms of market orientation, FBS participants were more competitor oriented, had less intelligence generation, were less market responsive, had less intelligence dissemination, had more customer emphasis, and had more interfunctional coordination than non-participants. The market orientation of cocoa farmers can be enhanced by provision of relevant practical experience for attitudinal change.
该研究旨在确定加纳可可委员会于2012年推出的农民商学院(FBS)作为一种推广方法,如何使加纳可可种植者更具商业和企业家精神。研究方法包括采用描述性调查和多阶段抽样技术,覆盖6个可可产区和600名可可农户。被选中的600名可可农由230名非参与者和370名FBS参与者组成。在胜任力方面,结果显示FBS参与者比非参与者拥有更多的知识、更积极的态度和更好的技能。在市场导向方面,FBS参与者比非参与者更具竞争导向、更少的情报生成、更少的市场反应、更少的情报传播、更重视客户、更有更多的职能间协调。通过提供相关的实践经验来改变态度,可以增强可可农户的市场导向。
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引用次数: 2
Technical Efficiency and the Factors that Affect it in Rice Production in Indonesia 印尼水稻生产技术效率及其影响因素
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.113.230.235
Muhardi, Effendy
Most of the population of Asia depends on consuming rice to support their lives. This implies that rice production needs attention. The existence of inefficiencies in lowland rice production could reduce rice yields for consumption, so the measurement of technical efficiency in lowland rice production needed to be studied. This research aimed to analyze the level of technical efficiency in lowland rice cultivation and identify the factors affecting it. The research was done in the Palolo and Torue subdistrict of Indonesia. The number of samples used was 249 lowland rice farmlands, consisting of 106 and 143 farmers of organic and inorganic lowland rice cultivation, respectively. The results show that land, fertilizer, seeds, and labor had a positive and significant effect on lowland rice production. The average technical efficiency of lowland rice cultivation was around 78.2%. The results also show that manager education, extension contacts, superior seeds, and organic lowland rice cultivation have a significant effect on the level of technical efficiency in lowland rice production. We concluded that there is an opportunity for farmers to increase lowland rice yields if they can manage production factors in an efficient manner. The government could provide support for farmers, such as formal and informal education, extension, superior seeds, and ready-to-use organic materials.
大多数亚洲人靠吃大米来维持生活。这意味着需要关注水稻生产。低效率的存在会导致水稻消费产量的减少,因此需要对低效率技术效率的测量进行研究。本研究旨在分析我国水稻种植技术效率水平及其影响因素。这项研究是在印度尼西亚的Palolo和Torue街道进行的。样本数量为249个低地水稻农田,分别由106个和143个种植有机和无机低地水稻的农户组成。结果表明,土地、肥料、种子和劳动力对水稻产量有显著的正向影响。水稻种植技术效率平均在78.2%左右。管理者教育、推广联系、优质种子和有机栽培对水稻生产技术效率水平有显著影响。我们的结论是,如果农民能够以有效的方式管理生产要素,他们就有机会提高低地水稻的产量。政府可以为农民提供支持,比如正规和非正规的教育、推广、优质种子和现成的有机材料。
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引用次数: 1
The Right-Sized Cow for Emerging and Commercial Beef Farmers in Semi-Arid South Africa: Connecting Biological and Economic Efficiency 在半干旱的南非,为新兴的和商业化的养牛户选择合适大小的奶牛:将生物效率和经济效率联系起来
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.111.79.104
Venter T.M, Antwi M.A, Oduniyi O.S
The study investigates the right size of cow in terms of both biological and economic efficiency under a typical production system in semi-arid South Africa. Cow size influences biological efficiency of individual animals, which influences herd composition and stock flow on a predetermined resource base. This in turn influences the economic efficiency of the herd. Individual cows were classified as either small, medium, or large and their individual biological efficiency determined. When similar reproduction and growth rates were assumed, large cows were the most biologically efficient, followed by medium and small cows. Income from the herd of small cattle was the lowest, as fewer kilograms of beef were available to sell. Allocated costs for the herd of small cattle were the highest, due to a large number of expenses being charged per head of cattle. Subsequently, when economic efficiency was calculated, the herd of large cattle was more profitable than its smaller counterparts. The herd of large and medium cattle would become less profitable than the herd of small cattle at lower reproduction rates, and these reproduction rates were calculated. Smaller cattle have a faster maturity rate than larger cattle. A faster maturity rate provides the opportunity for early breeding. The effect of limiting feed intake of small, medium, and large cattle was compared and yielded varying results. The study concluded that cattle size influences biological efficiency, biological efficiency influences economic efficiency however there are many more variables that influence biological and economic efficiency other than size, such as reproduction rates.
该研究调查了半干旱南非典型生产系统下奶牛的生物和经济效益。奶牛的大小影响个体动物的生物效率,进而影响畜群组成和在预定资源基础上的存量流量。这反过来又影响了牛群的经济效率。将个体奶牛分为小型、中型和大型,并确定其个体生物效率。当假设相似的繁殖和生长速度时,大型奶牛的生物效率最高,其次是中型和小型奶牛。小牛群的收入最低,因为可供出售的牛肉公斤数更少。小牛群的分配费用最高,因为每头牛要支付大量费用。随后,当计算经济效率时,大牛群比小牛群更有利可图。在繁殖率较低的情况下,大型和中型牛群的利润会低于小型牛群,并对这些繁殖率进行了计算。小牛的成熟速度比大牛快。更快的成熟率为早期繁殖提供了机会。限制小、中、大牛采食量的效果进行了比较,得出了不同的结果。该研究得出结论,牛的大小影响生物效率,生物效率影响经济效率,但是除了大小之外,还有许多变量影响生物和经济效率,例如繁殖率。
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引用次数: 0
Effects of Moringa Leaf Extract and Poultry Manure on the Growth Parameters of Sweet Maize 辣木叶提取物和禽粪对甜玉米生长参数的影响
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.111.10.18
Alubiagba D.O, Ovharhe O.J, Akparobi S.O
This study examined the effects of moringa leaf extract (MLE) and poultry manure (PM) on the growth parameters of sweet maize. The experiment was a Randomized Complete Block Design involving nine treatments: control (no extract), 3% MLE, 6% MLE, 9% MLE, 3% MLE + 15 t/ha–1 PM, 6% MLE + 15 t/ha–1 PM, 9% MLE + 15 t/ha–1 PM, 15 t/ha–1 PM, and 30 t/ha–1 PM. Data on growth parameters including plant height, number of leaves per plant, stem girth, and leaf area were collected and analyzed. The results of the study show that there were significant differences (P = 0.05) among the treatments because plots that received 30 t/ha–1 PM performed best on plant height (193.6 and 152.8 cm) number of leaves (13.1 and 10.2), stem girth (3.75 and 3.22 cm), and leaf area (584.9 and 402.9 cm2) in both early and late season. This was followed by plots that received 9% MLE and 15 t/ha–1 PM, with values of 189.0 and 152.2 cm; 12.5 and 10.0; 3.58 3.15 cm; and 546.2 and 392.2 cm2, respectively. The study concluded that 30 t/ha–1 PM can be used to yield effective growth parameters in sweet maize and is hereby recommended to extension workers for dissemination to farmers
研究了辣木叶提取物(MLE)和禽粪(PM)对甜玉米生长参数的影响。试验采用随机完全区组设计,包括9个处理:对照(无提取物)、3% MLE、6% MLE、9% MLE、3% MLE + 15 t/ ha-1 PM、6% MLE + 15 t/ ha-1 PM、9% MLE + 15 t/ ha-1 PM、15 t/ ha-1 PM和30 t/ ha-1 PM。收集和分析了包括株高、单株叶数、茎周长和叶面积在内的生长参数数据。结果表明:各处理间差异显著(P = 0.05),因为施用30 t/ ha-1 PM的地块在早、晚季株高(193.6和152.8 cm)、叶数(13.1和10.2 cm)、茎长(3.75和3.22 cm)和叶面积(584.9和402.9 cm2)上表现最好。其次是9% MLE和15 t/ ha-1 PM的地块,值分别为189.0和152.2 cm;12.5和10.0;3.58 3.15 cm;分别是546.2和392.2平方厘米。研究认为,施用30 t/ ha-1 PM可产生甜玉米的有效生长参数,建议推广人员向农民推广
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引用次数: 1
The Role of Agricultural Extension in Diffusion and Adoption of Biological Control Methods for Tomato Growers in Villages of Matrouh Governorate 农业推广在Matrouh省村庄番茄种植者推广和采用生物防治方法中的作用
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.112.210.221
A. Mohamed, F. Kamel, Yousria Ahmed Allam, Ismail Mohamed
This research aimed to define the role of agricultural extension in the process of Diffusion and adoption of biological control methods among tomato growers in Matrouh Governorate, Egypt, and also to define the relationship between their role in agricultural extension in Diffusion and adopting biological Control methods for tomato growers and some independent variables .The research was conducted in Matrouh Governorate using a random sample of 323 farmers, representing 16% of the total research cohort amounting to 2050 farmers; the data were collected using a questionnaire in September 2019. Data wereanalyszed using a statistical program, arithmetic mean, and the simple correlation coefficient of Pearson (r). The results are also presented in tabular form using frequencies and percentages.The main results of the research are as follows:the majority of farmers (82.97%) stated that the role of agricultural extension in diffusion and adoption methods of biological control among tomato growers was low, while 15.17% said that agricultural extension plays an intermediate role and 1.86% said it played a key role.There is a positivecorrelation at the 0.01 level of significance between the level of farmers' adoption of biological control methods as an dependent variable and each of the following independent variables: participation in local development organizations, social participation, satisfaction with life in the region, and attitudes towards agricultural innovations; and there is a positive correlation at the 0.05 level of significance with the levels of modernization and farmers' education.
本研究旨在明确农业推广在埃及Matrouh省番茄种植者传播和采用生物防治方法过程中的作用,并明确农业推广在番茄种植者传播和采用生物防治方法过程中的作用与一些自变量之间的关系。占总研究队列的16%,即2050名农民;数据是在2019年9月通过问卷收集的。使用统计程序、算术平均值和Pearson简单相关系数(r)对数据进行分析。结果也以频率和百分比的表格形式呈现。研究的主要结果如下:绝大多数农户(82.97%)认为农业推广在番茄种植户生物防治方法推广和采用中的作用较低,15.17%的农户认为农业推广起中间作用,1.86%的农户认为农业推广起关键作用。农户采用生物防治的程度作为因变量与当地发展组织参与程度、社会参与程度、区域生活满意度、农业创新态度等自变量呈显著正相关,且显著性水平为0.01;与现代化水平和农民受教育程度在0.05显著水平上呈正相关。
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引用次数: 0
Market-Based Strategy to Anticipate Covid-19 Pandemic in Smallholder Rubber Plantations in Riau Province, Indonesia 在印度尼西亚廖内省小农橡胶园预防Covid-19大流行的市场战略
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.113.222.229
Shorea Khaswarina, Sucherly, U. Kaltum, R. N. Ariawaty
The coronavirus pandemic had disrupted almost all businesses in various sectors, one of which is the plantation sector. Smallholder rubber plantations in Riau Province, Indonesia have faced the very tough challenges of the coronavirus pandemic. Efforts that could be made were marketing rubber products by implementing market-based strategies, namely market strategy, marketing mix strategy, customer value and marketing performance. This study aimed to analyze the effects of market strategy, marketing mix strategy, and customer value on marketing performance in smallholder rubber plantations in Riau Province during the Covid-19 pandemic. Data collection was carried out using 45 respondents as heads of smallholder rubber plantation farmer groups in Riau Province. Data analysis used structural equation modeling-partial least square (SEM-PLS). The results show that market strategy and marketing mix strategy had a significant direct effect on customer value. Customer value had a significant direct effect on the marketing performance of smallholder rubber plantation farmer groups in Riau, while the market and marketing mix strategies had an indirect effect.
冠状病毒大流行几乎扰乱了各个部门的所有业务,其中之一就是种植园。印度尼西亚廖内省的小农橡胶种植园面临着冠状病毒大流行的严峻挑战。橡胶产品的营销可以通过实施市场化策略进行,即市场策略、营销组合策略、客户价值和营销绩效。本研究旨在分析2019冠状病毒病大流行期间廖内省小农橡胶种植园的市场策略、营销组合策略和客户价值对营销绩效的影响。数据收集的对象是廖内省橡胶种植小农农民团体的45名负责人。数据分析采用结构方程模型-偏最小二乘法(SEM-PLS)。结果表明,市场策略和营销组合策略对顾客价值有显著的直接影响。顾客价值对廖内省小农橡胶种植户群体的营销绩效有显著的直接影响,而市场和营销组合策略对营销绩效有间接影响。
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引用次数: 1
Effect of Planting Time on Growth and Corm Yield of Chinese Water Chestnut (Eleocharis dulcis) in the Mekong Delta, Vietnam 种植时间对越南湄公河三角洲荸荠生长和玉米产量的影响
Q3 Social Sciences Pub Date : 2021-01-01 DOI: 10.18488/journal.ajard.2021.112.192.198
Dao Phu Quoc, N. Nga, Le Buu Thach
Experiments were conducted to study the effect of time of planting on the performance of Chinese water chestnut in the Mekong Delta in Vietnam over a single investigation. Plants of a local clone were planted in early January, March, May, July, September, or November and grown for four months. During the experiments, the photoperiod ranged from 11.2 to 12.6 h. The average daily mean temperature across the different cropping periods ranged from 27.70C to 29.10C. Information was collected on chlorophyll fluorescence, plant growth, and yield. Chlorophyll fluorescence (Fv/Fm) was greater than 0.7 in all the treatments (non-stressed), except for the first time of planting and at the end of growing. Corm yield was higher with a planting in May (525 g/plant), November (440 g/plant), and March (325 g/plant), intermediate with a planting in July (196 g/plant), and lower with a planting in January (116 g/plant) and September (55 g/plant). There were strong correlations between yield and the number of stems/plant (r = 0.84), and between yield and stem weight (r = 0.84). These results indicate that acceptable commercial yields can be achieved with water chestnut planted in May in this area.
以越南湄公河三角洲地区为研究对象,通过单次试验研究了种植时间对荸荠生产性能的影响。在1月初、3月、5月、7月、9月或11月种植本地无性系植株,种植4个月。试验期间,光周期为11.2 ~ 12.6 h,不同种植期的日平均气温为27.70 ~ 29.10C。收集了叶绿素荧光、植物生长和产量的信息。除种植初期和生育末期外,其余处理(非胁迫处理)叶绿素荧光(Fv/Fm)均大于0.7。玉米产量在5月(525 g/株)、11月(440 g/株)和3月(325 g/株)种植时较高,7月(196 g/株)种植时居中,1月(116 g/株)和9月(55 g/株)种植时较低。单株茎数与产量呈显著正相关(r = 0.84),茎重与产量呈显著正相关(r = 0.84)。这些结果表明,该地区5月种植菱角可获得可接受的商业产量。
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引用次数: 1
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Asian Journal of Agriculture and Rural Development
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