Weedy rice exerts a severe impact on rice production by competing for sunlight, water and nutrients. This study assayed the population structure, genetic diversity and origin of Northeast Asia weedy rice by using 48 simple sequence repeat markers. The results showed that weedy rice in Northeast Asia had a high genetic diversity, with Shannon’s diversity index (I) of 0.748 and the heterozygosi…
Epicuticular wax forms the outermost protective barrier of the aerial surfaces of land plants,working in concert with other components of the plant cuticle to prevent uncontrolled loss of water and to provide protection against an array of external environmental stress. In this study, chemically-mutagenized populations of rice (Oryza sativa L.) derived from approximately 4 750 M2 families were …
The major storage substance in rice endosperm is starch, which accounts for 80% of dry matter weight. In this study, rice mutant flo7, selected from the progeny of Nipponbare’s tissue culture, displayed floury and opaque endosperm. Compared with its corresponding wild type (WT) Nipponbare, the mutant flo7 produced longer, narrower, thinner and lighter grains. The levels of glucose, fructose a…
Rice (Oryza sativa L.) is an important food crop and requires larger amount of water throughout its life cycle as compared to other crops. Hence, water related stress cause severe threat to rice production. Drought is a major challenge limiting rice production. It affects rice at morphological (reduced germination,plant height, plant biomass, number of tillers, various root and leaf traits), ph…
Hydroponic cultures were conducted to compare the aluminum (Al) tolerance among different rice (Oryza sativa L.) varieties, including indica, japonica and their hybrids. The results showed that the root growth of rice plant was inhibited in different degrees among Al treated varieties. The Al tolerance observed through relative root elongation indicated that five japonica varieties including Lo…
The use of improved high yielding crop varieties is an important avenue for reducing hunger and food insecurity in developing countries. Using cross-sectional data obtained from a survey conducted during 2013 crop season, we performed a probit model (plot-level analysis) to determine the probability of adopting new improved rice varieties (NIRVs) by smallholder farmers particularly from two mai…
Paw San Hmwe (PSM) rice has been cultivated in many areas of Myanmar for a long time. Strong aroma, good taste and its elongation during cooking are the key characteristics of PSM rice. Thirty-one PSM accessions were genotypically characterized, and their physical grain and cooking quality traits were studied. We used specific gene markers associated with aroma, apparent amylose content (AAC) a…
Submergence tolerant high yielding rice variety was developed using BR11 as a recipient parent applying foreground, phenotypic and background selection approaches. Recombinant selection was found essential to minimize linkage drag by BC2F2 generation. Without recombinant selection, the introgression size in the backcross recombinant lines (BRLs) was approximately 15 Mb on the carrier chromosome…
1000-grain weight (TGW) is one of the three component traits of the grain yield in rice (Oryza sativa L). This study was conducted to validate and fine-map qTGW1.1, a minor QTL for TGW which was previously located in a 3.7-Mb region on the long arm of rice chromosome 1. Five sets of near isogenic lines (NILs) were developed from two BC2F4 populations of the indica rice cross Zhenshan 973/Milyan…
Genetic diversity of 299 inbred indica rice varieties, including 33 introduced varieties, applied in Guangdong Province of China were assessed using 20 ILP (intron length polymorphism) and 34 SSR (simple sequence repeat) markers. Totally, 154 loci were screened for the 299 varieties, with the average number of alleles (Na), rare alleles (Nr), and polymorphism information content (PIC) scored at…
Honey is a natural sweet substance produced by honey bees, from the nectars of plant flowers and honey dew. The present study aimed to evaluate physicochemical characteristics and quality of honey from different origins. Melissopalynological analysis of honey samples showed a wide variability, with samples from different honey sources being collected from different geographical origins. The col…
Breeding activities in Lebanon have attributed limited interest to barley and landraces have not been exploited before. In this study, 50 Lebanese barley landraces were experimented rainfed in Northern Bekaa in comparison with two checks, Assi and Rihane-3. Two field trials were conducted, the first at 1000 m a.s.l. and 171.6 mm precipitations, and the second at 648 m a.s.l. and 119.4 mm. Out o…
Strategies of regulated irrigation and fertilization are one of the most practical ways in saving irrigation water and N-fertilizer of farmland in arid and semi-arid regions. A field experiments were conducted in the two winter seasons of 2012/2013 and 2013/2014 on clay soil to investigate the effect of 3, 4 and 5 irrigation events and their interaction with two N-fertilization levels using amm…
A conventional key and its tabular version to the 36 species from 21 genera of the Acanthaceae s.l. in Egypt are provided. The key is based on 48 characters of vegetative and floral morphology recorded comparatively for the species. The key-generating package of computer programs DELTA was used to construct the keys and to provide detailed and coded descriptions of the species in terms of the r…
The rapid development and expansion of modern irrigation schemes across arid environments have radically transformed both natural environments and existing agricultural systems over the past century. The consequences for natural and cultural values are often severe, but remain poorly documented for many regions. The present study describes the floristic diversity of an Oasis agro-ecosystem loca…
Evidences stated that microclimate causes noticeable effects on life cycle, consumptive use of water and planting time of the plant species. So, two field experiments were established at Sakha Agricultural Research Station during 2013 and 2014 growing seasons in order to evaluate the effect of microclimate on planting date as well as the influence of applying nitrogen fertilization (F1: without…
This study was focused on the optimum conditions for preparing the protein isolate of quinoa seeds and investigates the physicochemical and functional properties of the isolated protein to assess the potential use of quinoa protein isolate in food applications and manufacturing. The protein isolate of quinoa was obtained by protein solubility at alkaline pH value (10), followed by precipitation…
Mineral selenium (Se) is an essential nutrient of great importance to biology of human. Cultivation of Saccharomyces cerevisiae cells in molasses medium with different concentrations of selenium showed that the contents of organic selenium in the cells, increased with the increase in selenium concentration up to 2 lg/ml followed by a gradual decrease after 24 h of incubation. No clear inhibitio…
Two field experiments were conducted at 2010–2011 and 2011–2012 winter seasons under the saline conditions of El-Tena plain (17,000 ppm), North Sinai, to investigate the effect of different organic fertilization sources (30 m3 fed. 1 of animal dung, 6 tones fed. 1 of each of rice straw with Olive Mill Wastewater compost (OMW compost) and the regular rice straw compost (RS-compost) beside…
Pimpinella anisum essential oil (EO) residuals and its biotic possessions were deliberated. EO was identified using UPLC MS/MS analysis. Inhibitory effect of oil and its preparations were studied using disc-diffusion and Minimum Inhibitory Concentration (MIC) tests, and using corn oil and Streptomycin as controls. Tolerant ability of EO treated Hep G2 cells was appraised using MMT assess, and 0…
Surfactants are amphipathic molecules which reduce surface tension, widely used in pharmaceutical, cosmetic and food industries. The current study aimed to isolate Streptomyces species from Egyptian arid soil, efficient in biosurfactant production. Fifty isolates of Streptomyces were obtained from arid soil in Egypt. Primary screening, using lipase, drop collapse, parafilm M and haemolysis test…
The structure and development of successive cambia and its products were studied in the stems of the halophyte Sesuvium verrucosum Raf. The young stem has several collateral vascular bundles arranged in a circle and separated by interfascicular zones. The secondary thickening begins with the differentiation of fascicular and interfascicular cambia which give rise to secondary xylem,phloem and l…
Thirty-one bacterial isolates out of 133 isolates, were obtained from rhizosphere of Egyptian clover plants, and had variant capability for starch degradation on starch agar medium. The isolate E109 was the most potent being 72.5 U ml1 and 2.5 for amylase activity and starch hydrolysis ratio (SHR), respectively, at 50 C. The potent isolate E109 was identified based on phenotypic characteristi…
tThis study presents the establishment of an integrated multi-trophic aquaculture (IMTA) system in thetropical open waters of southern Cebu, Philippines using a combination of locally available species,namely donkey’s ear abalone (Haliotis asinina) as fed species and seaweeds (Gracilaria heteroclada andEucheuma denticulatum) as inorganic extractive species. The culture of Caulerpa lentillifer…
Our previous work on the mechanism of virulence for the unique isolates of Vibrio parahaemolyticus thatcause acute hepatopancreatic necrosis disease (VPAHPND)revealed that it was mediated by a binary Pir-liketoxin pair ToxA and ToxB. These toxins are located on the pVA plasmid, a plasmid carried by AHPND-causing strain of V. parahaemolyticus with a size of approximately 69 kbp. Using the coding…
tThe aim of this study was to assess the effects of tilapia cage culture on the water quality and sedimentof Palminhas Lake during both the dry and rainy seasons. Eight sites within the lake (four in fish farmsand four in areas without fish farms) and one site on an affluent stream were sampled monthly fromFebruary 2011 to January 2012. Dissolved oxygen and pH were significantly lower at fish f…
tThe practice of prawn (Macrobrachium rosenbergii) farming is widespread in coastal Bangladesh due tofavorable biophysical resources. However, export-oriented prawn farming is particularly vulnerable toclimate change in coastal Bangladesh. This study identified different climatic variables, including salinity,coastal flooding, cyclone, sea-level rise, water temperature, drought, and rainfall ha…
The genetic differences between the blue clawmale(BC),orange clawmale(OC)andsmallmale(SM)morphotypes of male fresh water prawns were assessedu singmi crosatellite DNA markers.Thirtyindi-viduals from eachof the three groups of male prawns were collected from a hatchery rearing systemin Port Dickson,NegeriSembilan,Malaysia.Significant differences in growth were observed between the three groups.T…
tAnhydrobiosis is an adaptive strategy of certain organisms or specialised propagules to survive in theabsence of water while programmed cell death (PCD) is a finely tuned cellular process of the selectiveelimination of targeted cell during developmental programme and perturbed biotic and abiotic condi-tions. Particularly during water stress both the strategies serve single purpose i.e., surviv…
Numerous comparative genome analyses have revealed the wide extent of horizontal gene transfer (HGT)in living organisms, which contributes to their evolution and genetic diversity. Viruses play importantroles in HGT. Endogenous viral elements (EVEs) are defined as viral DNA sequences present within thegenomes of non-viral organisms. In eukaryotic cells, the majority of EVEs are derived from RNA…
The maize mutant gene Vestigial glume 1 (Vg1) has been fine-mapped to a narrow region by ap-based cloning and the candidate gene for Vg1 spanned 19.5 kb. Here we report Vg1 genomic fosmid library construction and screening. The fosmid library of Vg1 consisted of 574,000 clones with an average insert size of 36.4 kb, representing 7.9-fold coverage of themaize genome. Fosmid stability assays indi…
The study estimated genetic gain for yield and other traits in winter wheat released for irrigated environments in Turkey from 1963 to 2004. Yield trials including 14 varieties were grown in 16 environments from 2008 to 2012 in provinces of Konya, Eskişehir, Ankara, and Edirne. The highest yields were achieved by recent varieties Kinaci-97 (5.48 t ha−1), Cetinel-2000 (5.39 t ha−1), Alpu-20…
The phenotypic diversity of 274 Ethiopian durum wheat accessions was analyzed, taking their geographic origins into account. The aim was to assess the extent and patterns of agronomically important phenotypic variation across districts of origin and altitude classes for major qualitative traits using diversity index and multivariate methods. Eight qualitative and three quantitative traits were …
Considerable the amounts of Wader (Rasbora jacobsoni) are abundant in Indonesia for all year and also have a low economic value. By using Biduri (Calotropis gigantea) protease, production of wader protein hydrolysate (WPH) as food ingredients and industrial product may be possible. Hydrolysis condition was proposed depend on the effects of the time (t) (0, 1.5, and 3 hours),and enzyme concentra…
The sugarcane varieties with tolerance to flooding stress are not available in Indonesia. Therefore, this research was aimed to the development of flooding tolerant sugarcane. The research was conducted using Split Plot Design that consists of 2 factors with 3 replications. The main plot was 12 varieties of sugarcane. The sub plot was the level of flooding stress. After flooding treatment,the t…
In the Mediterranean area the solar heat gain in buildings needs to be controlled during the warm seasons in order to keep the internal temperature at comfortable levels and to mitigate the phenomenon of urban warming, known as Urban Heat Island. This phenomenon contributes to increase the outdoor pollutants concentration and the energy demand for air conditioning. Indoor microclimate condition…
Moulds are filamentous fungi which induce alteration on food and feed. The early detection of alteration fungal microbiota is essential for effective control strategies. In this study, we have investigated the moulds diversity of grape berry during bunch closure stage. Fungal strains were isolated from two indigenous grape varieties Cadarc
The aim of this paper is to present the unsteady magnetohydrodynamic (MHD) boundary layer flow and heat transfer of a fluid over a stretching sheet in the presence of viscous dissipation and heat source. Utilizing a similarity variable, the governing nonlinear partial differential equations are first transformed into ordinary differential equations before they are solved numerically by applying…
This work presents a methodology to optimize the controller parameters of doubly fed induction generator modeled for frequency regulation in interconnected two-area wind power integrated thermal power system. The gains of integral controller of automatic generation control loop and the proportional and derivative controllers of doubly fed induction generator inertial control loop are optimized …
This paper presents the results of studies of the young growth of main forest-forming coniferous species in four types of native cedar forest of the Sikhote-Alin nature reserve. The following types of young growth were measured: Manchurian fir (Abies nephrolepis), Ajan spruce (Picea ajanensis),Japanese yew (Taxus cuspidata), and Korean pine (Pinus koraiensis). The research was conducted during …
The physical vacuum affects not only the natural processes in deep space but also identifies the key features of the structure of ordinary matter. This sphere of work intersects the fields of chemistry and biology. The condition of the objective existence of elementary particles and the objectivity of quantum measurements require the presence of real physical analogues of clocks and lines that …
This paper discussed effects of lowland-associated influences on upland ecology, food security and biocultural diversity in the Sarangani farming communities of the Philippines. In the uplands of Sarangani Province, the conservation of traditional rice varieties, the centrality of rice in tribal life, and the continued observance of planting rituals attest to its cultural significance and conve…
Toxicity-data of two carbamate insecticides, carbaryl and carbofuran, and three fungicides,ziram, zineb and mancozeb with rice-field N2-fixing cyanobacterium Cylindrospermum sp., obtained by in vitro growth and at soil-water interface, were analyzed by the probit method. Growth enhancing concentration, no-observed effective concentration, minimum inhibitory concentration, the highest permissive…
A number of 26 fungal cultures were isolated from different phosphatic sources, including phosphate fertilizers and rock phosphate. The highest number and percentage of isolates were obtained from tri-phosphate fertilizer and rock phosphate samples (9 isolates with 34.6% for each sample) and then 8 isolates with 30.8% from monophosphate fertilizer. These isolates were tested for heavy metals bi…
The water-energy-food nexus is a concept increasingly being used with reference to integrated decision-making across sectors.Action in one area will impact one or both of the other areas. Sustainable development and growth can be achieved by better management of the world’s ecosystems and a more strategic use of water, land and other natural resources. Water, energy and food resources are not…
We explore processes that enable effective policies and practices for managing the links between water, energy, and food. Three case studies are assessed at different scales in the Mekong River basin, Sri Lanka and Zimbabwe. We find that there are considerable opportunities for improving outcomes for sustainable development by finding solutions that accommodate multiple objectives in the nexus.…
Water managers around the world are facing challenges when trying to manage water resources sustainably,particularly when confronted with increasing water scarcity. This article examines four river basins in Africa, Asia and Australia, with wide-ranging histories, politics and hydrology, to consider some of the key common challenges faced in very differing hydroclimatic conditions and the appro…
India’s energy policy of subsidized power supply to the agricultural sector has significantly contributed to a high level of dependence on ground water supply for irrigation in rural areas. Stakeholders – energy companies, farmers and other power users – are trapped in a continuous downward spiral of deteriorating power service delivery, near-bankrupt electricity companies,declining groun…
This paper aimed to optimize the technique parameters of tracking buoy by a hydrodynamic method through an experiment on the sea. A survey was created based on the study of technical characters of oil spill tracking buoy to achieve an allweather whole procedure monitoring propose for oil spill by using of satellite positioning communication mode, which can provide an effective technical method …
Compared with traditional on-site oil spill monitoring, the use of remote sensing technology has the macroscopic characteristics,which could quickly and accurately find an oil spill area. Currently, the detection approach of monitoring the phenomenon of marine oil spill are usually divided into two types, which are optical and synthetic aperture radar SAR remote sensing imagery. Among all satel…