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Effect of biochar and inorganic fertilizer on the quality of beetroot (Beta vulgaris L.) in Kenya 生物炭和无机肥对肯尼亚甜菜(Beta vulgaris L.)质量的影响
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13744
E. Kwizera, N. Mungai, A. M. Opiyo, N. A. Niyokuri
Despite its health benefits, the production and quality of beetroot is still low in Kenya due to the application of non-recommended rates of fertiliser and soil amendment. This research aimed at contributing to the improvement of the beetroot quality in Kenya. It was designed to determine the effects of biochar and NPK (17-17-17) on the quality of beetroot in Kenya. An RCBD factorial experiment was conducted at Egerton University farm, Kenya, for two seasons.  Biochar (0, 5, 10 t/ha) and NPK (0, 200, 300 and 400 kg/ha) were applied together before planting. Data were collected on beetroot diameter, total phenolics, total soluble solids, calcium, iron and phosphorus contents and analysed using SAS statistical software. The co-application of biochar and NPK significantly (p≤0.05) increased the beetroot diameter, iron, calcium, phosphorus, TSS and phenolics content in season two and not in season one. The sole application of biochar showed a significant increase in the iron content of beetroot in season one. However, biochar did not have a significant effect on beetroot diameter, mineral content, TSS and phenolics content of beetroot in season two. The sole application of NPK at 200, 300 and 400 kg/ha significantly (p≤0.05) increased the diameter of beetroot and iron content in both seasons one and two and also significantly improved the calcium and phosphorus content in season two. These NPK levels were not statistically different from each other, but different from the control. It is therefore recommended to apply NPK and biochar for quality beetroot.
尽管甜菜根对健康有益,但在肯尼亚,由于施用的肥料和土壤改良剂不符合建议比例,甜菜根的产量和质量仍然很低。这项研究旨在为提高肯尼亚甜菜根的质量做出贡献。研究旨在确定生物炭和氮磷钾(17-17-17)对肯尼亚甜菜根质量的影响。在肯尼亚埃格顿大学农场进行了为期两季的 RCBD 因式实验。 生物碳(0、5、10 吨/公顷)和氮磷钾(0、200、300 和 400 千克/公顷)在种植前同时施用。收集了甜菜根直径、总酚、总可溶性固形物、钙、铁和磷含量的数据,并使用 SAS 统计软件进行了分析。在第二季中,生物炭和氮磷钾的共同施用显著增加了甜菜根的直径、铁、钙、磷、总可溶性固形物和酚的含量(p≤0.05),而在第一季中没有增加。在第一季中,单独施用生物炭能明显增加甜菜根中的铁含量。然而,生物炭对第二季甜菜根的直径、矿物质含量、总悬浮固体和酚类物质含量没有明显影响。单施氮磷钾(200、300 和 400 公斤/公顷)在第一季和第二季都能显著提高甜菜根的直径和铁含量(p≤0.05),在第二季还能显著提高钙和磷含量。这些氮磷钾水平在统计学上没有差异,但与对照组不同。因此,建议施用氮磷钾和生物炭,以获得优质甜菜根。
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引用次数: 0
Effect of rabbit urine foliar spray on the yield and post-harvest quality of tomato (Solanum lycopersicum L.) 兔尿叶面喷施对番茄(Solanum lycopersicum L.)产量和采后品质的影响
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/14173
E. K. Mutua, M. Mwangi, L. Gaoqiong
Of all vegetable crops, tomato occupies the second-largest cultivated land after potato. However, its production is often lamed by insufficient nutrient supply and invasion by insect pests. Unlike inorganic fertilizers and synthetic pesticides commonly used, rabbit urine supplies nutrients to the crops, controls insect pests and has low mammalian toxicity. However, the most suitable rabbit urine foliar spray concentration for tomato production is currently unknown. The experiment was conducted in a randomized complete block design with six treatments and four blocks to evaluate the effect of different concentrations of rabbit urine foliar spray on the yield and post-harvest quality of tomato. The six treatments used include: five concentrations of rabbit urine (100%, 40%, 25%, 18.2% and 0%) and 0.1% Duduthrin 1.75EC. Results indicated that treatment 18.2% rabbit urine registered the highest marketable yield (129.14 t/ha) in trial 1. In trial 2, treatment 25% rabbit urine recorded the highest marketable yield (165.08 t/ha). These two treatments gave the highest marketable yields due to their sufficient nutrient supply, optimal pest control and zero foliage scorching. Unlike fruit firmness and sugar acid ratio, total soluble solids and titratable acidity increased with increase in rabbit urine concentration. Therefore, a rabbit urine foliar spray concentration of 25% optimally improves yield and post-harvest quality of tomato. More research work can be done to determine the effect of spraying intervals of rabbit urine on the yield and post-harvest quality of tomato.
在所有蔬菜作物中,番茄的种植面积仅次于马铃薯。然而,由于营养供应不足和虫害的侵袭,番茄的生产常常受到影响。与常用的无机肥料和合成杀虫剂不同,兔尿既能为作物提供养分,又能控制害虫,而且对哺乳动物毒性低。然而,目前尚不清楚最适合番茄生产的兔尿叶面喷洒浓度。该试验采用随机完全区组设计,共设四个区组六个处理,以评估不同浓度的兔尿叶面喷施对番茄产量和采后品质的影响。采用的六种处理包括:五种浓度的兔尿(100%、40%、25%、18.2% 和 0%)和 0.1% Duduthrin 1.75EC。结果表明,在试验 1 中,处理浓度为 18.2%的兔尿的上市产量最高(129.14 吨/公顷)。在试验 2 中,25% 兔尿处理的可销售产量最高(165.08 吨/公顷)。这两种处理之所以能获得最高的上市产量,是因为它们有充足的养分供应、最佳的病虫害控制和零叶片焦枯。与果实紧实度和糖酸比不同,总可溶性固形物和可滴定酸度随着兔尿浓度的增加而增加。因此,25% 的兔尿叶面喷洒浓度能最佳地提高番茄的产量和采后质量。可以开展更多的研究工作,以确定兔尿喷洒间隔对番茄产量和采后质量的影响。
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引用次数: 0
Optimization of fertilizer use efficiency, soil quality and oil palm (Elaeis guineensis Jacq.) growth with biochar under drip irrigation conditions irrigation conditions 在滴灌条件下利用生物炭优化肥料利用效率、土壤质量和油棕榈(Elaeis guineensis Jacq.)
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/14191
H. Aleiadeh
Biochar (BC) is an eco-friendly product characterized with high content of carbon and usually obtained by heating biomass without oxygen. Utilizing BC as organic material to amend the problematic soils and improve plant growth and yield has been proved previously. This study investigated the effect of vetiver grass biochar (VGB) on fertilizer use efficiency, soil quality, and oil palm growth performance. A net house experiment was conducted at the Farm Unit, UiTM Sarawak Branch, between August 2022 and March 2023. A factorial randomized complete block design (RCBD) with five treatments and four replications was devised. Treatments applied were: T0) absolute control; T1) 100% NPK fertilizer; T2) 100% vetiver grass biochar; T3) 50% vetiver grass biochar + 50% NPK fertilizer; and T4) 25% vetiver grass biochar + 75% NPK fertilizer. The BC application significantly improved the fertilizer use efficiency through reducing the rate of fertilizer applied. It also significantly enhanced most soil-measured chemical properties and soil nutrients. The growth performance of oil palm plant was significantly enhanced by BC application in terms of plant height, hump diameter, leaf number, chlorophyll content, and plant biomass. The BC application demonstrated its usefulness in managing soil and cultivating oil palm plant sustainably by reducing the rate of fertilizer applied and improve the fertilizer use efficiency. Based on the output, we suggest that treatment T3 (50% vetiver grass biochar + 50% NPK) can be used to improve the growth performance of oil palm.
生物炭(BC)是一种环保产品,其特点是含碳量高,通常通过无氧加热生物质获得。利用生物炭作为有机材料来改良有问题的土壤并提高植物的生长和产量,这在以前已得到证实。本研究调查了香根草生物炭(VGB)对肥料利用效率、土壤质量和油棕生长性能的影响。2022 年 8 月至 2023 年 3 月期间,在沙捞越大学分校农场部门进行了一项网室实验。试验采用五种处理和四次重复的因子随机完全区组设计(RCBD)。采用的处理为T0)绝对对照;T1)100% NPK 肥料;T2)100% 香根草生物炭;T3)50% 香根草生物炭 + 50% NPK 肥料;T4)25% 香根草生物炭 + 75% NPK 肥料。生物炭的施用通过减少化肥的施用量,大大提高了化肥的利用率。同时,它还明显提高了大多数土壤测量化学特性和土壤养分。施用萃取物后,油棕植物在株高、驼峰直径、叶片数、叶绿素含量和植物生物量等方面的生长性能都有明显提高。萃取物的施用证明了其在管理土壤和可持续栽培油棕植物方面的作用,减少了肥料施用量,提高了肥料利用效率。根据结果,我们建议使用处理 T3(50% 香根草生物炭 + 50% 氮磷钾)来改善油棕的生长表现。
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引用次数: 0
Evaluation of biological control option for Bagrada bug (Bagrada hilaris (Burmeister)) in Kenya 肯尼亚巴拉达虫(Bagrada hilaris (Burmeister))生物防治方案评估
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13270
N. Otieno, M. Saidi, A. Opiyo, M. Kasina, M. Guantai
Brassica production is important for economic development of Kenya. Bagrada bug, a significant pest of brassicas, affects their yields and quality, currently posing a threat to both local and commercial vegetable production in Kenya. Biological control of bagrada bug using natural enemies is a cheaper and environmentally friendly method. The study aimed to identify native egg parasitoid species in Kenya. A field prospection survey of the bagrada bug egg parasitoid was done by a series of bagrada bug egg exposure in different parts of the country. Freshly laid bagrada bug eggs in cards were exposed for possible parasitism in the field for three days. The eggs were later carried to the laboratory at NSRC to await hatching. Two egg parasitoid species Trissolcus basalis (Hymenoptera, Scelionidae) and Gryon sp. were identified during the study after a period of bagrada bug egg exposure in Machakos and Kisumu. Two cards with parasitized bagrada bug eggs were recovered from Machakos from which one card yielded four parasitoids of one species Trissolcus basalis and the other yielded two parasitoids Trissolcus basalis and Gryon sp. One card with two parasitized eggs by Trissolcus basalis was recovered from Kisumu, however, there were no parasitoids identified in Nanyuki, Naivasha and Kitengela where bagrada bug is also prevalent. Results showed parasitoid presence in fields with high bug populations compared to areas with few or no Bagrada bug infestations. Conducting trials in both laboratory and field settings is recommended to obtain clear data on the effectiveness of the identified egg parasitoid in managing the bagrada bug population.
芸苔属植物的生产对肯尼亚的经济发展非常重要。巴拉达虫是芸苔属植物的一种重要害虫,会影响其产量和质量,目前对肯尼亚的本地和商业蔬菜生产都构成了威胁。利用天敌对巴格拉达虫进行生物防治是一种成本较低、对环境友好的方法。这项研究旨在确定肯尼亚本地的卵寄生虫物种。通过在肯尼亚不同地区进行一系列巴哥蝽卵暴露,对巴哥蝽卵寄生虫进行了实地调查。将刚产在卡片上的巴哥蝽卵在田间暴露三天,以确定是否有寄生虫。这些卵随后被运到国家科学研究中心的实验室等待孵化。在马查科斯和基苏木进行了一段时间的袋蝽卵暴露后,在研究期间确定了两种卵寄生物种:Trissolcus basalis(膜翅目,鞘翅目)和 Gryon sp.。在马查科斯发现了两张寄生有巴格达蝽虫卵的卡片,其中一张卡片上发现了四种寄生虫,其中一种为 Trissolcus basalis,另一张卡片上发现了两种寄生虫 Trissolcus basalis 和 Gryon sp.;在基苏木发现了一张寄生有 Trissolcus basalis 两枚虫卵的卡片,但在巴格达蝽也很普遍的纳纽基、奈瓦沙和基滕盖拉没有发现寄生虫。结果表明,与巴格达蝽虫害较少或没有虫害的地区相比,虫害较多的地区存在寄生虫。建议在实验室和田间环境中进行试验,以获得明确的数据,说明已确定的卵寄生虫在管理巴哥蝽种群方面的有效性。
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引用次数: 0
Effect of straw and plastic mulches on growth and yield of zero tillage potato (Solanum tuberosum L.) in the Coastal Khulna Region of Bangladesh 秸秆和塑料覆盖物对孟加拉国沿海库尔纳地区零耕作马铃薯(Solanum tuberosum L.)生长和产量的影响
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13279
A. H. Saimon, M. A. Mannan, S. Sultana, A. R. Mondal
A randomized complete block design experiment was undertaken at the field laboratory of the Agrotechnology Discipline, Khulna University, Khulna, from November 2021 to March 2022 to ascertain the impact of various mulch treatments on zero tillage potato cultivation. The experiment employed BARI Alu 78 as the planting material and utilized three replications with five distinct mulch treatments. These mulch treatments were identified as follows: Straw mulch (T1), Mulch film (T2), Black polythene (T3), White polythene (T4), and Blue polythene (T5). The metrics that were recorded included the number of sprouts, plant height, number of leaves per plant, leaf width, leaf length, number of tubers, tuber length, tuber breadth, number of defective tubers, weight of defective tubers, and tuber weight. Different mulching techniques significantly influenced the overall crop yield and the underlying factors that influenced the results. The mulch film treatment resulted in the highest yield, with a production of 34.76 tons per hectare, followed by black polythene (28.11 tons per hectare), straw mulch (23.74 tons per hectare), white polythene (20.44 tons per hectare), and blue polythene (18.66 tons per hectare). The economic analysis revealed that mulch film had a high benefit cost ratio along with high input and output. Black polythene came in second place when the benefit cost ratio was compared to that of mulch film and the rest of the three treatments. Combining zero tillage with mulch film or black polythene demonstrates significant potential for becoming a cost-effective practice in the coastal region of Bangladesh.
2021 年 11 月至 2022 年 3 月,在库尔纳库尔纳大学农业技术学科的田间实验室进行了一项随机完全区组设计实验,以确定各种地膜覆盖处理对零耕作马铃薯种植的影响。试验采用 BARI Alu 78 作为种植材料,并采用三次重复和五种不同的地膜覆盖处理。这些地膜处理如下:秸秆地膜(T1)、地膜(T2)、黑色聚乙烯(T3)、白色聚乙烯(T4)和蓝色聚乙烯(T5)。记录的指标包括萌芽数、株高、单株叶片数、叶片宽度、叶片长度、块茎数、块茎长度、块茎宽度、缺陷块茎数、缺陷块茎重量和块茎重量。不同的地膜覆盖技术对作物总产量和影响结果的基本因素有明显影响。地膜覆盖处理产量最高,为每公顷 34.76 吨,其次是黑色聚乙烯(每公顷 28.11 吨)、稻草覆盖(每公顷 23.74 吨)、白色聚乙烯(每公顷 20.44 吨)和蓝色聚乙烯(每公顷 18.66 吨)。经济分析表明,地膜的效益成本比高,投入产出也高。与地膜和其他三种处理的效益成本比相比,黑色聚乙烯排在第二位。在孟加拉国沿海地区,将零耕地与地膜或黑色聚乙烯结合起来,很有可能成为一种具有成本效益的做法。
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引用次数: 0
Interaction impact of drought stress, nutrient-deficient water, and seed-borne pathogen (Alternaria alternata) on germination and vigor of two tomato varietiesination and vigor of two tomato varieties 干旱胁迫、营养缺乏的水和种子传播的病原体(交替孢霉)对两个番茄品种的萌发和活力的交互影响两个番茄品种的萌发和活力
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13574
Nhi Y.T.N., Massimi M., Radócz L.
Tomato (Solanum lycopersicum) is considered one of the leading vegetable plants in the world. This study evaluated the germination and vigor capabilities of ‘Marmande’ and ‘Kecskeméti Jubileum’ varieties under different conditions, including drought stress, nutrient-deficient water, and the effect of seed-borne disease caused by Alternaria alternata when prime and non-prime with salicylic acid. The experiment was conducted in the laboratory in 2023 at Agricultural and Food Sciences and Environmental Management Faculty of University of Debrecen. Results indicated that the ‘Kecskeméti Jubileum’ variety exhibited a superior strength to ‘Marmande’ in the seedling’s dry weight, seedling growth rate, and vigor index under nutrient-deficient water. Nevertheless, when applying levels of drought, the ‘Marmande’ variety had a higher viability rate of 62.5% in comparison with another variety, and the germination rate of the two tomato varieties is at 85.5% in 5% concentration but decreased progressively when exposed to a higher drought concentration of 10%. When using 3 ml of salicylic acid during germination stages, the seedling vigor index of ‘Marmande’ shows a greater index at 165 compared to ‘Kecskeméti Jubileum’, just 108 under the infection of Alternaria alternata.  The results of the examination of drought stress, and the effect of Alternaria alternata, one cause of seed-borne pathogens, showed that the percentage germination and vigor ability of the ‘Marmande’ variety performed better than ‘Kecskeméti Jubileum’ under the same conditions.
番茄(Solanum lycopersicum)被认为是世界上主要的蔬菜植物之一。本研究评估了 "Marmande "和 "Kecskeméti Jubileum "两个品种在不同条件下的萌芽和活力,包括干旱胁迫、养分不足的水,以及水杨酸原液和非水杨酸原液对由交替孢霉引起的种传疾病的影响。实验于 2023 年在德布勒森大学农业与食品科学和环境管理学院实验室进行。结果表明,"Kecskeméti Jubileum "品种的幼苗干重、幼苗生长速度和活力指数在养分不足的水中均优于 "Marmande"。然而,当施加一定程度的干旱时,'Marmande'品种的成活率比另一个品种高,达到 62.5%;在 5%的干旱浓度下,两个番茄品种的发芽率为 85.5%,但在 10%的较高干旱浓度下,发芽率逐渐下降。在发芽期使用 3 毫升水杨酸时,"Marmande "的秧苗活力指数为 165,而 "Kecskeméti Jubileum "的秧苗活力指数仅为 108,在交替孢属植物感染下,秧苗活力指数更高。 对干旱胁迫和种子传播病原体之一的交替丝核菌(Alternaria alternata)的影响的研究结果表明,在相同条件下,"Marmande "品种的发芽率和活力能力均优于 "Kecskeméti Jubileum"。
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引用次数: 0
Agrobacterium transformation of Rhodiola sp.: current status and limitations 红景天的农杆菌转化:现状与局限性
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/12888
A. Javid, Zs. György
The study of secondary metabolites has led to the discovery of new drugs for treating human diseases. However, consistent plant supply can be challenging, leading to the use of plant tissue culture techniques such as hairy root culture. Hairy roots have stable genetics, lateral branching, and can produce secondary metabolites, including alkaloids, flavonoids, and terpenoids. Research on hairy roots as a subject began in the late 19th century, and for the last four decades, hairy roots have been utilized for producing secondary metabolites and recombinant proteins. This article focuses on Rhodiola species - genus of perennial plants that belongs to the family Crassulaceae - and its potential as a source of secondary metabolites using hairy root culture techniques. Rhodiola sp. is widely distributed throughout the Arctic regions of the Northern Hemisphere, with several species having significant medicinal properties. The article discusses the possible use of hairy root cultures for the production of Rhodiola secondary metabolites, including salidroside and rosavins, which have demonstrated significant pharmacological activity in various studies. The use of elicitation and genetic engineering techniques to boost secondary metabolite production in Rhodiola hairy roots is also explored. Overall, the article highlights the potential of Rhodiola hairy root cultures as a valuable source of secondary metabolites with medicinal properties. However, despite some studies Rhodiola hairy root induction and culturing still remains highly unexplored.
对次生代谢物的研究有助于发现治疗人类疾病的新药物。然而,稳定的植物供应可能具有挑战性,因此需要使用毛细根培养等植物组织培养技术。毛细根具有稳定的遗传性、侧枝性,并能产生次生代谢物,包括生物碱、黄酮类和萜类化合物。对毛状根的研究始于 19 世纪末,在过去的 40 年中,毛状根一直被用于生产次生代谢物和重组蛋白质。本文重点介绍红景天属(属于十字花科多年生植物)及其利用毛根培养技术作为次生代谢物来源的潜力。红景天广泛分布于北半球的北极地区,其中几个品种具有重要的药用价值。文章讨论了利用毛根培养物生产红景天次生代谢物的可能性,包括在多项研究中显示出显著药理活性的水杨甙和玫瑰黄素。文章还探讨了如何利用诱导和基因工程技术来提高红景天毛根中次生代谢物的产量。总之,文章强调了红景天毛根培养物作为具有药用价值的次生代谢物来源的潜力。然而,尽管进行了一些研究,但红景天毛根的诱导和培养仍然是一个尚未开发的领域。
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引用次数: 0
Prevalence of banana diseases and post-harvest losses in Kenya, and biocontrol potential of arbuscular mycorrhizal fungi against Fusarium wiltngi Against Fusarium wilt 肯尼亚香蕉病害的流行和收获后的损失,以及丛枝菌根真菌对枯萎病镰刀菌的生物防治潜力 对枯萎病镰刀菌的生物防治潜力
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13781
H. K. Kamore, E. M. Njeru, S. Nchore, R. O. Ombori, J. M. Muthini, J. Kimiti
The demand for bananas (Musa spp.), which is ranked as the most important fruit crop in Kenya has been on the rise owing to both their dietary contribution and income generation. Meeting this demand has however been hampered by losses during production or post-harvest. This study assessed banana disease and post-harvest losses in leading producing counties in Kenya namely; Kisii, Nyamira and Embu. The study also assessed the efficacy of Rhizophagus irregularis in controlling Fusarium oxysporum f.sp. cubense. Structured questionnaires were used to collect data on post-harvest losses. Disease scoring tables, charts and photos were used to confirm observed symptoms and hence, disease occurrence and severity. AMF biocontrol efficacy experiment was conducted using tissue culture bananas grown in the greenhouse. The study revealed that most smallholder farmers were unaware of the causes or the prevalence of post-harvest losses. The findings also revealed a significant difference (p<0.05) in the severity of banana diseases across various cultivars from the three counties. The AMF treated bananas showed a significant difference (p<0.05) in plant height, total leaf area and chlorosis in comparison to other treatments. The study also revealed a reduction of Fusarium’s pathogenic effects including chlorosis, reduced leaf surface area and eventual necrosis.
香蕉(Musa spp.)被列为肯尼亚最重要的水果作物,由于其对饮食的贡献和创收作用,对香蕉的需求一直在上升。然而,生产过程中或收获后的损失阻碍了香蕉需求的满足。这项研究评估了肯尼亚主要生产县(基西、尼亚米拉和恩布)的香蕉病害和收获后损失。该研究还评估了不规则根瘤菌(Rhizophagus irregularis)在控制立枯丝核菌(Fusarium oxysporum f.sp. cubense)方面的功效。采用结构化问卷收集收获后损失的数据。使用病害评分表、图表和照片来确认观察到的症状,从而确定病害的发生和严重程度。利用在温室中种植的组织培养香蕉进行了 AMF 生物防治效果实验。研究表明,大多数小农不了解收获后损失的原因或发生率。研究结果还显示,三个县不同品种的香蕉病害严重程度存在显著差异(p<0.05)。经 AMF 处理的香蕉与其他处理相比,在株高、总叶面积和萎黄病方面差异显著(p<0.05)。研究还表明,镰刀菌的致病作用也有所降低,包括萎黄病、叶面积减少和最终坏死。
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引用次数: 0
Morphological characterization of shallot (Allium cepa L. var. aggregatum) segregating populations obtained from natural-outcrossing in Ethiopial-outcrossing in Ethiopia 埃塞俄比亚通过自然杂交获得的大葱(Allium cepa L. var. aggregatum)分离群体的形态特征
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13228
G. Tabor, F. G. Mengistu, G. Atinafu
Shallot is a vegetable and condiment crop widely used in Ethiopia and globally. However, absence of improved and adaptable varieties has been the major cause of low productivity. Narrow genetic base of local shallot germplasm owing to vegetative reproduction of the crop, among others, has been the root cause of low productivity. Nevertheless, some plants within the germplasm were observed bolting and producing viable seeds, presenting an opportunity for genetic diversification. Consequently, a germplasm enhancement program was initiated using these naturally outcrossing genotypes where about eighty-one genotypes were generated. The present study was thus undertaken with the objective of characterizing, classifying, and selecting the eighty-one genotypes for future breeding activities. The genotypes were planted in 9x9 simple lattice design with two replications at Debre Zeit Agricultural Research Center (Ethiopia) during the dry (irrigated) season of 2021. The genotypes were evaluated for fifteen growth, yield, and quality traits. Significant variations were observed among the genotypes in terms of bulb yield, bulb height and diameter, total soluble solids, bolting percentage, and bulb skin color. Bulb yield of the genotypes ranged from 31.33 t/ha in DZSHT-79-1A to 9.63 t//ha in DZSHT-45-1A-1. DZSHT-51-2 (207.93 g) was the highest yielder per plant whereas DZSHT-065-6/90 (74.51 g) was the lowest yielder. DZSHT-14-2-1/90 had the thickest bulb (44.69 mm) significantly thicker than twenty two genotypes which had bulb diameter ranging from 28.92 mm to 20.29 mm. DZSHT-81-1/90 was a genotype with the longest bulb height (52.33 mm) while DZSHT-147-1C was a genotype with the shortest bulb (33.12 mm). DZSHT-307-1/90 had the highest TSS (16.78°Brix) significantly differing from DZSHT-002/07 which had the lowest TSS (11.17 °Brix). Dry matter of the genotypes ranged from 12.00% to 22.79%. DZSHT-004/07, DZSHT-111-2-1, DZSHT-41-2B and DZSHT-72-2 had DM% greater than 20% which coupled with greater than 14 °Brix could make them suitable for dehydrated shallots. Among the 81 genotypes characterized 4 (4.9%), 7 (8.6%), 13 (16.1%), 28 (34.6%) and 29 (35.8%) were yellow, golden, light red, red and dark red in colour, respectively.  Fifteen of the genotypes had at least 50% bolting plants whereas twenty nine of the genotypes had less than 25% bolting. The results revealed that seven principal components explained approximately 76% of the observed variation. Cluster analysis grouped the genotypes into seven clusters, with the majority falling into three clusters. The study successfully identified genotypes with diverse and important traits and availed both the genotypes and the information for future breeding programs. These genotypes could be used for the development of improved hybrid and open pollinated shallot varieties with higher yield, quality and pest resistance/tolerance attributes.
大葱是埃塞俄比亚乃至全球广泛使用的蔬菜和调味品作物。然而,缺乏改良和适应性强的品种一直是生产率低下的主要原因。由于作物的无性繁殖等原因,当地大葱种质的遗传基础狭窄,这也是生产力低下的根本原因。尽管如此,在种质资源中仍能观察到一些植物萌发并结出有活力的种子,这为基因多样化提供了机会。因此,利用这些自然外交的基因型启动了一项种质强化计划,产生了约 81 个基因型。因此,本研究旨在对这 81 个基因型进行特征描述、分类和筛选,以用于未来的育种活动。在 2021 年的旱季(灌溉季节),这些基因型以 9x9 简单格子设计、两次重复的方式种植在 Debre Zeit 农业研究中心(埃塞俄比亚)。对这些基因型的 15 个生长、产量和质量性状进行了评估。各基因型在鳞茎产量、鳞茎高度和直径、可溶性固形物总量、鳞茎勃起率和鳞茎表皮颜色方面存在显著差异。基因型的球茎产量从 DZSHT-79-1A 的 31.33 吨/公顷到 DZSHT-45-1A-1 的 9.63 吨/公顷不等。DZSHT-51-2 的单株产量最高(207.93 克),而 DZSHT-065-6/90 的单株产量最低(74.51 克)。DZSHT-14-2-1/90 的鳞茎最粗(44.69 毫米),明显比鳞茎直径从 28.92 毫米到 20.29 毫米不等的 22 个基因型要粗。DZSHT-81-1/90 是鳞茎高度最长(52.33 毫米)的基因型,而 DZSHT-147-1C 则是鳞茎最短(33.12 毫米)的基因型。DZSHT-307-1/90 的总糖度最高(16.78°Brix),与总糖度最低(11.17°Brix)的 DZSHT-002/07 相差很大。基因型的干物质含量在 12.00% 到 22.79% 之间。DZSHT-004/07、DZSHT-111-2-1、DZSHT-41-2B 和 DZSHT-72-2 的 DM% 大于 20%,再加上大于 14 °Brix,使它们适合用作脱水香葱。在 81 个基因型中,有 4 个(4.9%)、7 个(8.6%)、13 个(16.1%)、28 个(34.6%)和 29 个(35.8%)分别呈黄色、金黄色、浅红色、红色和深红色。 有 15 个基因型的植株至少有 50%的勃起,而有 29 个基因型的勃起率低于 25%。结果表明,七个主成分解释了约 76% 的观察变异。聚类分析将基因型分为七个类群,其中大部分属于三个类群。这项研究成功地鉴定出了具有多种重要性状的基因型,为未来的育种计划提供了基因型和信息。这些基因型可用于改良杂交和开放授粉大葱品种,使其具有更高的产量、品质和抗病虫害/耐受性。
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引用次数: 0
Effects of farmyard manure (FYM) and blended NPSB fertilizer rate on growth and yield of potato (Solanum tuberosum L.) in Gewata, Kaffa, southwest Ethiopia 农家肥(FYM)和混合NPSB肥料对埃塞俄比亚西南部卡法Gewata地区马铃薯(Solanum tuberosum L.)生长和产量的影响
Pub Date : 2024-07-16 DOI: 10.31421/ijhs/30/2024/13502
A. Mengesha, T. Negash, J. K. Abebe
Potato (Solanum tuberosum L.) is an essential crop for nutrition and food security and generating income to small-holder farmers in Ethiopia. Productivity of the crop is, however, limited by poor nutrient management practices and low soil fertility. In most parts of potato growing areas of Ethiopia, soil are deficient in macro (nitrogen, phosphorus and sulfur) and micro nutrients (boron) which are known to affect production and productivity of potato. A field trail was accompanied to determine the growing response of potatoes ’Belete varieties’ to combine the treatment of farmyard manure and blended NPSB (nitrogen, phosphorous, sulfur and boron) fertilizer at Gewata, southwest Ethiopia during 2019/2020 main cropping season. The variables are laid out four level of farmyard manure (0, 5, 10 and 15 t/ha) and four level of blended NPSB fertilizer (0, 50, 100, and 150 kg/ha). The treatments were organized in a completely randomized block design with three replications using a 4x4 factorial layout. SAS (version 9.4) was used for data were analyzed. The finding indicate that, combined application of FYM (farmyard manure) with NPSB significantly (p<0.01) affects plant height, average mass of tuber, number of marketable and unmarketable tuber per hill, and tuber yields per plot. It also significantly (p<0.05) influenced days to flowering, maturity, and tuber number per hill. The highest tuber weight (99.33 g), tuber number per hill (9.67), and yield (34.10 kg) per plot were recorded from the mixed fertilization of 15 t FYM with 150 kg/ha NPSB mineral nutrients. As a current finding, it can be stated that the combined use of FYM (15 t/ha) and NPSB blended fertilizer could improve potato growth and yield in the study area (150 kg/ha).
马铃薯(Solanum tuberosum L.)是埃塞俄比亚小农获得营养和粮食安全并创造收入的重要作物。然而,养分管理不善和土壤肥力低限制了该作物的产量。在埃塞俄比亚马铃薯种植区的大部分地区,土壤缺乏宏观养分(氮、磷和硫)和微观养分(硼),而众所周知,这些养分会影响马铃薯的产量和生产率。为确定马铃薯 "Belete 品种 "在 2019/2020 年主要耕种季节对埃塞俄比亚西南部 Gewata 的农家肥和 NPSB(氮、磷、硫和硼)混合肥料处理的生长反应,进行了田间跟踪。变量包括四个水平的农家肥(0、5、10 和 15 吨/公顷)和四个水平的混合 NPSB 肥料(0、50、100 和 150 千克/公顷)。处理采用完全随机区组设计,三次重复,4x4 因式布局。数据分析采用 SAS(9.4 版)。研究结果表明,联合施用 FYM(农家肥)和 NPSB 会显著(p<0.01)影响植株高度、块茎平均质量、每丘可销售和不可销售块茎数量以及每小区块茎产量。它还对开花天数、成熟度和每丘块茎数有明显影响(p<0.05)。15 吨生土与 150 公斤/公顷 NPSB 矿物养分混合施肥的地块块茎重量(99.33 克)、每山块茎数(9.67 个)和产量(34.10 公斤)最高。根据目前的研究结果,可以说,在研究地区,结合使用 FYM(15 吨/公顷)和 NPSB 混合肥料(150 公斤/公顷)可以提高马铃薯的生长和产量。
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引用次数: 0
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International Journal of Horticultural Science
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