Nguyen Van Loc

• PhD
• Lecturer at Vietnam National University of Agriculture

This study examined the effects of three plant growth regulator fertilizers (Atonick, N3M, and Profarm) on the performance of black pepper (Piper nigrum) under various water stress conditions (drought, waterlogging, and control). Conducted in a greenhouse over a twomonth period from June to July 2024 using sandy clay-loam soil, the study employed a...

Black soybeans [Glycine max (L.) Merr] are among the important crops, but the cultivated resources are normally low-yielding, susceptible to diseases and low profit. Therefore, it is necessary to evaluate the genetic diversity of black soybean germplasms for breeding programs. This study investigates the genetic diversity of 22 black soybean variet...

This research investigates the impact of drought and waterlogging stresses on the morphological and physiological characteristics of black pepper (Piper nigrum). The greenhouse experiment was laid out in a Randomized Complete Block Design (RCBD) with treatments consisting of three water regimes (drought, control, and waterlogging), all replicated t...

Genotype × environment (GxE) interaction effects are one of the major challenges in identifying cultivars with stable performance across agri-environments. In this study we analysed GE interactions to identify quinoa (Chenopodium quinoa) cultivars with high and stable yields under different soil moisture regimes, representing control conditions, wa...

The development of popcorn genotypes that are high-yielding and with high popping abilities is fundamental to the expansion of popcorn production. In this study, a total of 23 newly developed full-sib FS3 lines of popcorn were evaluated under upland field conditions in the spring cropping season in 2021. The plant genotypes were evaluated for growt...

This study aims to investigate the impact of digital transformation on customer satisfaction in the retail industry, focusing on the mediating roles of perceived value and technology acceptance in emerging countries - research in Hanoi, Vietnam. Based on existing literature, we proposed a conceptual model that posits digital transformation as a key...

Glutinous rice (Oryza sativa), despite its unique culinary qualities, typically yields less than other rice varieties, posing agricultural and economic challenges. The construction of a glutinous thermo-sensitive genic male sterile (TGMS) rice variety could indeed be a way to improve the yield and cultivation efficiency of glutinous rice. Among the...

Glutinous rice (Oryza sativa), despite its unique culinary qualities, typically yields less than other rice varieties, posing agricultural and economic challenges. The construction of a glutinous thermo-sensitive genic male sterile (TGMS) rice variety could indeed be a way to improve the yield and cultivation efficiency of glutinous rice. Among the...

This article investigated the effects of fly ash (FA) on the growth and disease resistance of peanut plants (Arachis hypogaea) under two soil conditions. Briefly, the experiment was conducted under semi-controlled conditions in a greenhouse at the Faculty of Agronomy, Vietnam National University of Agriculture (latitude 21°0′01″ N, longitude 105°9′...

Genotype by environment interaction (GEI) is crucial for selecting high performing and adapted genotypes for targeted breeding. The main goal of this study was to study genotype-by-environment interaction and stability of eight elite mung bean (Vigna radiate L.) genotypes (DTG01-DTG08) with a national check DX208 which laid out in RCBD with 3 repli...

This article presents data of the effects of fly ash on growth and yield of radish plant under two types of soil (delta clay rich soil and coastal sandy soil). The experiment was conducted under semi-controlled conditions in a greenhouse at the Faculty of Agronomy, Vietnam National University of Agriculture (latitude 21°0′01N, longitude 105° 9′32″...

GATA transcription factors (TFs) play a significant role in regulating many plant physiological processes. The GATA TF family has been identified and characterized in many important crop species. However, no information is available on the GATA TFs in cassava (Manihot esculenta). In this study, 36 MeGATA genes have been comprehensively identified,...

GATA transcription factors (TFs) play a significant role in regulating many plant physiological processes. The GATA TF family has been identified and characterized in many important crop species. However, no information is available on the GATA TFs in cassava (Manihot esculenta). In this study, 36 MeGATA genes have been comprehensively identified,...

Exploring the genetic aspects of germplasm through genotypic and phenotypic analysis is a more reliable approach for guiding future breeding program and selecting novel rice varieties. This study was conducted to assess genetic diversity and genetic factors of 30 rice accessions using agronomic traits, anthocyanin content, and four pigment-controll...

Salt threatens rice cultivation in many countries. Hence, breeding new varieties with high salt tolerance is important. A panel of 2,391 rice accessions from the 3 K Rice Genome Project was selected to evaluate salt tolerance via the standard evaluation score (SES) in hydroponics under 60 mM NaCl at the seedling stage. Three sub-population panels...

Soybean cultivation in many regions of the world with high rainfall is severely impacted by soil waterlogging. One of the primary factors that contribute to this damage is soil hypoxia resulting from waterlogging. The germination responses of soybean to seed-rhizosphere hypoxia in relation to waterlogging stress remains unclear. To understand the g...

Several studies have explored the potential role of biochar and crop straws in soil and crop production improvement, and limiting the negative impact of heavy metal accumulation in contaminated soils. This study was conducted to assess the effects of combining biochar and rice straw on soil cadmium contamination, rice growth, yield, and cadmium (Cd...

Salinization is raising the adverse effects of drought stress in coastal areas because of freshwater shortage for irrigation. This study investigates the growth responses and recovery of sugarcane affected by individual and combined drought and saline stress at the early growth stage. The experiment was conducted with four treatments: control, drou...

Recent studies indicated new perspectives on the morphology and architecture of the quinoa root system, its intraspecific diversity and plasticity in response to drought. This study therefore aimed to evaluate wherether promoted development of root system due to the plasticity triggered by drought stress would contribute to increased growth, and yi...

Purpose: Benefits of silicon to plant growth and yield in higher plants has been explored recently. This study was conducted to assess effects of application of foliar application of stabilized Orthosilicic Acid (OSA) with NPK fertilizer on growth and yield of rice. Methods: The study was conducted in Ntende site at Rwagitima marshland, Gatsibo di...

Foliar application of bio-stimulants or plant growth promoters enhances nitrogen use efficiency. VIUSID ® has been known as a common growth promoter supplement and is composed of amino acids, vitamins, and minerals; and used to increase production of many crops. However, limited information is available on combined application of VIUSID ® with nitr...

‘Sugars Will Eventually be Exported Transporters’ (SWEETs) are a group of sugar transporters that play crucial roles in various biological processes, particularly plant stress responses. However, no information is available yet for the CaSWEET family in chickpea. Here, we identified all putative CaSWEET members in chickpea, and obtained their major...

A total of 23 newly developed inbred lines (S2) of popcorn was evaluated under upland field condition in Spring cropping season 2021 at Gia Lam - Ha Noi. The results showed that growth duration of popcorn lines ranged from 96-121 days. The inbred lines exhibited following characteristics: 103.7-200.6cm in plant height; the final number of 12.92-18....

Establishment of the green space in urban environment has been regarded as one of the major strategies for the development of green cities. In this study, we provided experimental evidence for the uses of biochar-based substrates for the growth and development of blue daze (Evolvulus glomeratus) plants under the rooftop condition. We firstly analyz...

Quinoa (Chenopodium quinoa) is regarded as one of the highly-valued crops that are cultivated widely in the world. However, the mechanism of the adaptation in the quinoa plant has been still lacking, even the genetic information of this species was recently published. In this study, the sucrose transporter, namely ‘SWEET’ (Sugar Will Eventually be...

Global climate change and increasing agricultural activity are the main causes of biotic and abiotic stresses, which negatively affect the plant growth and crop yields. The plant root system is the first organ for sensing the soil moisture limitation; therefore root growth under elevated water defi cit is an important indicator for plant’s drought...

The investigations on the effects of biochar application in improving the physio-chemical properties of soil have been carried out in many studies; however, there are very few studies on the combined use of both biochar and clay-rich soil for poor nutrient soil reclamation. Therefore, this study demonstrates improved water retention and nutrient re...

Soil moisture stress has become a serious environmental limitation to crop productivity and quality. The root system is the first organ sensing the changes in soil moisture; therefore, root development under water deficit is an important indicator for plant's drought tolerance. Previous studies focused on quinoa varietal differences in morphologica...

The investigations on the effects of biochar application in improving the physio-chemical properties of soil have been carried out in many studies; however, there are very few studies on the combined use of both biochar and clay-rich soil for poor nutrient soil reclamation. Therefore, this study demonstrates improved water retention and nutrient re...

The experiment was conducted in high-tech agricultural net house of the Vietnam National University of Agriculture, Hanoi, Vietnam to evaluate effects of expanded clay ratio in the substrates on growth, yield and quality of okra and chili. The experiment consisted of five formulas: CT1 (control, 100% alluvial soil); CT2: 30% expanded clay + 70% all...

Despite significant contributions of vegetable and flower production to the improvement of the livelihoods of household producers in the Central Highlands of Vietnam, several challenges facing the development of this sector require a general evaluation. This study aimed at assessing the current situation and economic efficiency of flowers and veget...

Purpose Benefits of silicon to plant growth and yield in higher plants has been explored recently. This study was conducted to assess the effects combined application of foliar application of Orthosilicic Acid (OSA) with basal NPK fertilizer on growth and yield of rice. Methods The study was conducted in Ntende site at Rwagitima marshland, Gatsibo...

This article provides a dataset on the analysis of morphological characteristics and combining ability of some parental lines in the two line hybrid rice system in Vietnam. Four thermo-sensitive male sterile lines and seven pollen restorer lines were used in a Line x Tester mating system to produce twenty-eight hybrids. The parental lines were char...

This study was conducted to evaluate the effects of expanded on the growth and yield of perilla plant (Perilla frutescens). The experiments consisted of 5 expanded clay sizes: G1 (1.0cm), G2 (2.0cm), G3 (3.0cm), G4 (4.0cm), and G5 (5.0cm); was arranged in in randomized complete block (RCB) with 3 replications.The results revealed that the small siz...

Because of rainfall shortage, quinoa has the potential to supersede traditional crops that contribute to agricultural production less effectively. The current study determined the quinoa genotypes and plant density suitable for production under rain-fed conditions in red basalt soil regions. The experiments were conducted in the rainy and dry seaso...

Climate change is predicted to increase the probability of soil waterlogging due to severe rainfall, causing significant damage to soybean at the germination stage. Germination under waterlogging is also greatly influenced by temperature. To clarify the variation in germination responses of soybean genotypes to waterlogging at different temperature...

Nghiên cứu này được thực hiện nhằm đánh giá ảnh hưởng của kích thước hạt gốm xốp đến sinh trưởng và năng suất của cây tía tô Perilla frutescens). Thí nghiệm gồm 5 công thức độ dài hạt gốm G1 (1,0cm), G2 (2,0cm), G3 (3,0cm), G4 (4,0cm) và G5 (5,0cm) được thiết kế theo khối ngẫu nhiên đầy đủ với ba lần nhắc lại. Kết quả cho thấy hạt gốm có kích thước...

NAC transcription factors have been regarded as one of the largest families of transcriptional regulators in plants. It has been demonstrated that NAC families played an important role in various biological processes in crops, particularly in abiotic stress response. This review summarizes the information of NAC families in numerous plant species....

s In humid parts of the world, waterlogging is a major environmental stress limiting the yield of soybean and its root development is an important indicator of tolerance. Recently, quantitative trait loci (QTLs) for this trait were detected on the chromosome 12 of soybean through the analyses of recombinant inbred lines (RILs) developed from a cros...

Một trong những biện pháp phòng ngừa các bệnh truyền nhiễm hiệu quả nhất là tiêm chủng. Hiện nay các tế bào của vi khuẩn E. coli, nấm men, côn trùng và động vật có vú đang được sử dụng để sản xuất vắc xin nhờ có những hệ thống biểu hiện khác nhau, tuy nhiên nền tảng thông thường này vẫn tồn tại một số giới hạn như hạn chế sự sửa đổi sau phiên mã, g...

The field experiment was conducted to evaluate the growth, yield and quality of 10 grass varieties including one Ruzi grass variety, two Guinea grass varieties (TD58 and Common), three sweet sorghum varieties (Honey Jumbo, and BMR), and four Elephant grass varieties (Bac Chong Cao, King Grass, VA06, and Co Voi Thuan) at the different harvesting tim...

TCP transcription factor is considered as the key regulatory proteins, which are demonstrated to involve in the growth and development of plants. However, the information of TCP in pummelo (Citrus grandis) has been still lacking. The aims of this study were to identify and characterize the basic features of TCPs in pummelo. As the results, a total...

Trong nghiên cứu này, đặc tính lý hóa của tiểu phần MeNF-YC và thông tin về mức độ biểu hiện của các gen MeNF-YC đã được phân tích và làm rõ trên cây sắn (Manihot esculenta) thông qua các công cụ tin sinh học. Phân tích trên ExPASY Protparam cho thấy họ MeNF-YC có kích thước và trọng lượng phân tử rất đa dạng. Họ MeNF-YC có tính ưa nước, giá trị đi...

Soil salinity has become a serious environmental abiotic stress limiting crop productivity and quality. The root system is the first organ sensing the changes in salinity. Root development under elevated salinity is therefore an important indicator for saline tolerance in plants. Previous studies focused on varietal differences in morphological tra...

Làm chủ công nghệ khai thác ảnh vệ tinh phục vụ sản xuất ngô vjst.vn/vn/tin-tuc/3117/

Climate change increase the probability of soil waterlogging due to severe rainfall. A low oxygen concentration in soil (hypoxia) is a major problem associated with waterlogging, and root development is an important indicator of resistance. However, little is known about the root development responses of sweet potato to hypoxia under waterlogging....

Land use maps specifying up-to-date acreage information on maize (Zea mays L.) cropping patterns are required by many stakeholders in Vietnam. Government statistics, however, lag behind by one year, and the official land use maps are only updated at 5-year intervals. The aim of this study was to apply the Savitzky–Golay algorithm to reconstruct noi...

Thí nghiệm nghiên cứu ảnh hưởng của các loại giá thể gốm kỹ thuật và phân chậm tan đến sinh trưởng và chất lượng của hoa lily trồng chậu được tiến hành trong điều kiện nhà lưới tại Học viện Nông nghiệp Việt Nam. Thí nghiệm hai nhân tố bao gồm: (1) bốn loại giá thể gốm kỹ thuật (3 loại hạt gốm Việt Nam: G 1 , G 2 , G 3 và một loại gốm nhập nội của T...

Climate change increase the probability of soil waterlogging due to severe rainfall. A low oxygen concentration in soil (hypoxia) is a major problem associated with waterlogging, and root development is an important indicator of resistance. However, little is known about the root development responses of sweet potato to hypoxia under waterlogging....

The effect of planting methods in combination with fertilizer applying methods was studied in the upland experimental field at Vietnam National University of Agriculture. The two-factorial experiment was arranged in split-plot design with planting methods (direct sowing, using organic pots, and cutting pots) as the main factor and fertilizer applyi...

Starch metabolism is known to be an important pathway in the growth and development of plants. This study was conducted to investigate the genome-wide identification and structural analysis of genes encoding uridine diphosphate glucose pyrophosphorylase (UGPase), a key enzyme in starch synthesis in cassava, and to analyze the expression profiles of...

Introduction to Crop production in Viet Nam

Sản xuất lúa hữu cơ được xem như là một hướng phát triển kinh tế mới cho người dân xã Đồng Phú. Tuy nhiên việc canh tác lúa theo phương thức hữu cơ không hề đơn giản vì người dân đã quen với phương thức canh tác sử dụng chất hóa học, hệ thống cơ sở hạ tầng chưa phù hợp với canh tác hữu cơ, khó khăn trong tìm kiếm thị trường tiêu thụ cho sản phẩm hữ...

Tăng trưởng dân số toàn cầu và tình trạng mất diện tích đất nông nghiệp đồng nghĩa với nhu cầu lương thực, thực phẩm sẽ ngày càng tăng trong tương lai. Để khắc phục tình trạng này, công nghệ sử dụng giá thể trồng cây không cần đất hoặc thay thế một phần đất đang được áp dụng, mở rộng nhanh chóng tại nhiều quốc gia trên thế giới, đặc biệt, tại một s...

Ngày nhận bài: 27.12.2018 Ngày chấp nhận đăng: 21.03.2019 TÓM TẮT Ngập úng là một trong những yếu tố giới hạn năng suất và sản lượng cây ngô ở các vùng khí hậu nhiệt đới gió mùa châu Á cũng như trên thế giới. Nghiên cứu này được tiến hành để đánh giá sự biến đổi cấu trúc bộ rễ ngô trong điều kiện thiếu hụt oxy vùng rễ. Đặc điểm bộ rễ của 30 dòng ng...

Root growth of soybean responses to hypoxia stress

Root growth responses to hypoxia tress

Soybean is often damaged by hypoxia caused by waterlogging at the seedling stage. Hypoxia severely inhibits root development and retards plant growth. We aimed to clarify phenotypic variation in root development under hypoxia condition at the seedling stage using diverse soybean accessions. Root development in 162 accessions was evaluated in hydrop...

Key message: Greatest potential, QTLs for hypoxia and waterlogging tolerance in soybean roots were detected using a new phenotypic evaluation method. Waterlogging is a major environmental stress limiting soybean yield in wet parts of the world. Root development is an important indicator of hypoxia tolerance in soybean. However, little is known abo...

https://www.jstage.jst.go.jp/browse/jcsproc

The experiment studied the effect of the expanded clay cultures and slow released fertilizers on growth, development and fresh leaf biomass of Mentha arvensis L. The experiment consisted of two factors: the main factor is 4 expanded clay cultures: G1, G2, G3, G4; Sub-factor is 3 slow released fertilizers: P1, P2, P3. The 12 experimental treatments...

The experiment was conducted in greenhouse conditions at Vietnam National University of Agriculture to investigate genotypic variation in morphological and physiological responses of five soybean cultivars to waterlogging at the flowering stage. Seeds of each cultivar were sown in pots containing 6 kg dry soil. At early flowering stage, treatment p...

ABSTRACT This study was conducted to investigatethe heterosis of agronomical traits relating to flooding tolerance in 10 maize hybrids derived from 7 parental inbred lines. The flooding treatments were applied artificially at seedling stage (3-4 leaves) in field conditions for one week. There was positive relationship of root length, SPAD value, dr...

Six rice (Oryza sativar L.) varieties (Beodien, KD18, Koshihikari, Sensho, Rayada) were used to evaluate genotypic variation in growth and water use efficiency in the response to different water regimes at seedling stage. Five days after sowing, seedlings were thinned to one plant per pot and water treatments; flooding as a control, well-irrigated...

ABSTRACT The present study aimed to estimate the effects of cold treatment on growth of 73 chromosome segment subtitution lines (CSSLs) of rice developed from the cross between Indica IR24 and Japonica Asominori. The experiment was conducted in two plant growth chambers (capacity: 300 litters) with different temperature conditions: 13 0 C (cold str...

This study was conducted to determine the effect of drought on several physiological and morphological traits of barley at seedling stage. Factorial experiment including 9 barley genotypes with constrasting salinity tolerance capacity at seedling stage, and 3 water regimes was laid out in a completely randomized design with 3 replications. Drought...

Nghiên cứu này được tiến hành nhằm đánh giá khả năng chịu lạnh của 73 dòng lúa CSSL (dòng có đoạn thay thế nhiễm sắc thể) được chọn lọc từ phép lai giữa giống lúa Indica IR24 và Japonica Asominori. Hạt của các dòng lúa được nảy mầm 7 ngày trong các hộp thí nghiệm đặt trong hai buồng sinh trưởng (dung tích 300 lít) có nhiệt độ môi trường khác nhau:...

Thí nghiệm nghiên cứu ảnh hưởng của việc ngập nước đến sinh trưởng và khả năng tích lũy chất khô của cây ngô thời kỳ cây con được tiến hành trong các cốc nhựa trong điều kiện nhà lưới. Mười một dòng ngô thuần được xử lý ngập trong thời gian một tuần. Kết quả thí nghiệm đã chỉ ra một số dòng ngô bị ngập nước trong vòng 7 ngày bị giảm các chỉ tiêu si...

Nghiên cứu này được tiến hành nhằm xác định khả năng sinh trưởng và phát triển của một số loại rau trồng trong bầu hữu cơ đồng thời xác định loại bầu phù hợp để trồng một số loại rau cho năng suất và chất lượng cao. Nghiên cứu bao gồm 3 thí nghiệm: 1) Xác định mức độ phân hủy của vỏ bầu hữu cơ theo thời gian vùi trong đất; 2) Đánh giá khả năng sống...

The analysis of 22 waxy corn inbred lines indicated that there were four lines having high homozygous rate: Waxy4, Waxy 9, Waxy16, Waxy 17 (under 7% of heterozygous rate) and 5 lines showed high heterozygous proportion (above 20%): Waxy 12, Waxy 14, Waxy18, Waxy 21, Waxy 22. The SSR primer system used in the experiments is relatively polymorphic wi...

Introduction Drought is one of the critical problems for agriculture caused by climatic change globally. Increasing water usage from domestic consumption resulting from high population, industrial and agricultural activities, and pollution exaggerates the problem. In Vietnam, recently, the rice production has been seriously affected by drought. Aer...

a chỉ email liên lạc tác giả: nvloc@hua.edu.vn TÓM TẮT Sáu giống cà chua F2 mang gen rin, có nguồn gốc từ nước ngoài đã được so sánh với giống thương mại tiêu chuẩn ở Gia Lâm, DV 987, để chọn lọc ra những dòng cà chua mang gen rin thích hợp nhất cho việc kéo dài thời gian bảo quản và nâng cao chất lượng của cà chua tươi ở Việt Nam. Giống T1 mang ge...

A total of 21 newly developed inbred lines (S3) of popcorn was evaluated under field conditions in Gia Lam district, Hanoi in 2009 autumn-winter cropping season. The growth duration of popcorn inbred lines ranged from 102-105 days. The inbred lines exhibited following characteristics: plant height between 123.5 and 198.5 cm, average number of leave...

SUMMARY A total of eight sweet corn inbred lines was evaluated for their combining ability using topcross method in a lines x tester scheme. Twelve topcross hybrids produced by crossing 6 outstanding sweet inbred lines with 2 testers were evaluated in Autumn-Winter season 2008 and Spring season 2009 at Hanoi Agricultural University. The lines Đ3 an...

The study on effects of plant density on hybrid baby corn production was carried out in autumn 2007 cropping season and repeated in autumn 2008 at Hanoi University of Agriculture. The experiments were designed using split-plot method with three replications. Treatments consisted of four plant densities (two plants/hill): D1 (114,000 plants/ha), D2...

SUMMARY The effect of granulated fertilizer application in combination with Komix on growth and yield of corn cultivar LVN4 was investigated in a filed experiment at Hanoi University of Agriculture in two autumn cropping seasons of 2007 and 2008. The two-factor experiment was arranged in a randomized complete block design with foliar spray of Komix...