Highlighting Bacillus subtilis GA1 antifungi potentialities for pineapple (Ananas comosus) conservation in Côte d’Ivoire - IJAAR

By: Yao Fulgence Koffi, Waze Aimée Mireille Alloue-Boraud, Louis Ban Koffi, Amon Fabrice Adohi, Marcellin Koffi Dje, Marc Ongena

1. Laboratory of Microbiology and Biotechnology, National Center of Agronomic Research (CNRA), Côte d’Ivoire
2. Department of Sciences and food Technology, University Nangui Abrogoua, Côte D’ivoire
3. Walloon Center of Industrial Biology (CWBI) Unit of Bio-Industries University of Liège Gembloux Agrobio-tech, Belgium, Passage des Déportés.

Pests, microorganisms and parasites are responsible for significant losses crops and especially fruits and vegetables, which threaten food human. Côte d’ivoire, the first provider of pineapple (Ananas comosus) fresh on European market is facing in recent years to a drastic drop in production to several factors including the action of microorganisms during storage.

The struggle Chemical although effective drawbacks. This study aims using the Bacillus subtilis strain GA1 in biological control against germs responsible for alteration pineapple fruit in côte d’ivoire. A sample of twenty-five pineapple which has been used five healthy pineapple and five altered were used for the isolation of microorganisms and fifteen healthy pineapples were used for other tests. The main agents Fungal spoilage isolated pineapple fruit in this work were Aspergillus sp., Rhizopus sp., Fusarium sp., And Candida sp. The pathogenicity tests also confirmed that the isolated fungal strains are responsible for the pineapple fruit rotting.

The tests antagonists conducted in the presence of B. subtilis GA1 against fungi isolated showed inhibition rate of 81.2% for Aspergillus sp (s), 69% for Aspergillus sp (a), 64% for Rhizopus sp., and 57.14% for Fusarium sp. protection tests on fruits from biomass of B. subtilis GA1 helped preserve fruits over a period of fourteen (14) days with no mushrooms in the heart of the fruit. Source of the original articles at: Highlighting Bacillus subtilis GA1 antifungi potentialities for pineapple (Ananas comosus) conservation in Côte d’Ivoire

More articles of this issue:  The nutritional and mycoflora changes during storage of groundnut (Arachis hypogea)

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

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Source: International Journal of Agronomy and Agricultural Research @2015  Journal of agronomy

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Population dynamics of ground dwelling spider genera among mustard crop - JBES An open access research journals

By: Muhammad Arshad Rana, Munaza Shabnam, Naureen Rana, Tayyba Sultana, Salma Sultana, Sobia Kanwal, Imran Ahmad

1. Department of Zoology, Govt. Postgraduate College Okara, Pakistan
2. Department of Biology, Govt. Postgraduate College for women Sahiwal, Pakistan
3. Department of Zoology, Wildlife and Fisheries, UAF, Pakistan
4. Department of Zoology, Govt. College University Faisalabad, Pakistan

The present study was designed to record the distribution of ground dwelling spider genera among mustard crop at Okara district. Sampling was made from Brassica compestris crop through pitfall traps. Equal number of traps were placed in three rows e.g. along the boundary, middle of the field and centre of the field.

Each trap was filled with mixture solution of alcohol and glycerin (70:30%) along with few drops of kerosene oil. After 5 days interval sample traps was collected and spider specimens were washed with distilled water and permanently stored in labeled glass vials, and brought into the Pest Control Laboratory, Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad. Thereafter, each spider specimen was identified according to the taxonomic material and internet source. Identified data was analyzed statistically to quantify their spatial distribution. Maximum spatial distribution of spider population was documented in middle transect than boundary and centre of the mustard crop. It was also observed that temperature, humidity and prey availability were the major factors that effecting the spider population. Population variations were recorded during the months of February, March and April in 2015, due to rise of temperature, decrease of humidity and availability of prey. Conclusively, spiders have some correlation with suitable local conditions or habitat. More over, spiders are cost effective, functionally significant and play important role in regulating decomposer population. Source of the original articles at : Population dynamics of ground dwelling spider genera among mustard crop

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Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publication Name: International Network For Natural Sciences (INNSPUB)

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Fungal pathogens associated with grapevine wood lesions in Algeria International Journal of Agronomy and Agricultural Research (IJAAR)

By: Faiza Ammad1, 2*, Messaoud Benchabane2, Mohamed Toumi1

1.  Departement of Biology, Ecole Normale Supérieure Kouba, BP. 92, 16050 Vieux-Kouba, Alger,
   Algéria
2. Faculty of Natural Sciences and life, Departement of Biotechnology, University Blida1, BP 270
   Blida 09000 – Algéria

A field survey was conducted in Algeria to assess the state of dieback in some vineyards and identification the fungal pathogens associated with necrotic wood lesions. Field surveys conducted during spring seasons in 2006 and 2012 revealed that an average disease incidience was 25 % , the indice of disease severity varied of 0.5-2%, based on herbaceous symptoms.

Some sections of wood cultivar, collected from four localities vine showed many kinds of necrosis, central sectoral(brown colour), necrosis sectoral(grey colour) and central light brown. Wood samples were collected and used for isolation and then placed on potato-dextrose (PDA) medium. The results showed that the presence of wood fungi mostly affected the vine trunk were isolated and the fungi were identified morphologically as Botryosphaeria species and Fomitiporia mediterranea. This articles available at: Volume 4, Number 6, June 2014 – IJAAR

More articles of this issue: Determination of yield and yield components of gooseberry (Physalis peruviana) grown in dry conditions

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

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Diversity and distribution of anuran in two islands of Parnaíba River Delta, Northeastern Brazil

By: Etielle Barroso de Andrade, José Roberto Souza Almeida Leite, Gilda Vasconcelos de Andrade

1. Postgraduate Program in Biodiversity and Conservation, Department of Biology,Federal
   University of Maranhão, Maranhão, Brazil
2. Research Center for Biodiversity and Conservation, Federal University of Piauí, Piauí, Brazil
3. Federal Institute of Education, Science and Technology of Piauí, Piauí, Brazil

The distribution and composition of communities are influenced by factors that determine the environmental characteristics in a particular region. In order to obtain more information regarding the fauna of frogs in the region of the Parnaíba River Delta, Northeastern Brazil, we performed a quantitative ecological study to compare the composition and distribution of the amphibian communities. The study was conducted in the two largest islands of Deltafrom September 2008 to August 2009. Fifteen ponds were selected and slowly covered in search of males in calling activity. We recorded 21 frog species, distributed in five families and 11 genera. Ilha Grande de Santa Isabel(21 spp.) had higher species richness than the Ilha das Canárias (11 spp.). Although most species are considered to be common in open areas, they were highly influenced by the structural complexity of the vegetation. The highest richness was observed in environments with greatest availability of microhabitats for reproduction. The preservation of different environments found in the two islands, associated with the maintenance of suitable habitats for reproduction of each species, will contribute to the conservation of amphibian communities of the Parnaiba Delta River. Source the articles: Diversity and distribution of anuran in two islands of Parnaíba River Delta, Northeastern Brazil

More articles of this issue: Evaluation of some quantitative and qualitative characteristics of 5 cultivars of tomato (Lycopersicum esculentum) grown in Hormozgan Province

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publisher Name: International Network For Natural Sciences (INNSPUB)

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Source: Journal of Biodiversity and Environmental Sciences @2016 Research Journal of Environmental Sciences

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Physiological and biochemical characterization of Cork Oak Seedlings (Quercus suber.L) in Tunisia

By Abdessamad Abdessalem1*, Saidi Ahmed1, Chkioua Chaker2, Ksontini Mustapha1

1. Laboratory of Physiology and Ecology Forestry, National Institute for Research in Rural
   Engineering & Forestry INRGREF Tunis, Tunisia
2. Laboratory of Plant Ecology, Faculty of Sciences of Tunis, 2092 El Manar Tunis, Tunisia

The cork oak is native forest species, the most represented in Tunisia and especially to Mogods Kroumirie. This species is considerable regression estimated at 1.22% of the area per year . Natural regeneration of cork oak seedlings and by rejecting strain encounters strong difficulties mainly because of the great mortality among seedlings.

The failure of this regeneration is mainly caused by environmental conditions characteristic of the Mediterranean climate (long dry seasons with hot winds and high temperatures) and by predation and anthropogenic factors. Our study is to analyse the physiological and biochemical responses of seedlings of cork oak, subjected to moderate and severe water stress, which was conducted in nurseries in Tunis in twelve populations of cork oak. The various treatments are used to test the tolerance of the cork oak plants to water stress by biochemical markers such as proline, sugars and starch. The accumulation of sugars is characteristic of woody plants in difficult environmental conditions, as in our experimentation proline and starch can be regarded as a biochemical marker of stress to the cork oak. Source: http://bit.ly/2abcnp2

More Articles of JBES:  Iranian Pimpinella L. (Apiaceae): A taxonomic revision – JBES An open access research journals

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

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Evaluation of promising lines in rice (Oryza sativa L.) to agronomic and genetic performance under Egyptian conditions

By Gala Anis, Ayman EL Sabagh*, Abdelfatah Ghareb, Ibrahim EL-Rewainy

1. Rice Research and Training Center (RRTC), Field Crop Research Institute, ARC, Egypt
2. Department of Agronomy, Kafrelsheikh University, Egypt
3. Department of Agronomy, Hajee Mohammad Danesh Science and Technology University,
   Bangladesh

Key words: Correlation coefficients, Genetic parameters, Yield related traits, Rice, Yield improvement

A field experiment was conducted during the period 2014 and 2015 at the farm of Rice Research and Training Center, Sakha, kafr el-sheikh, Egypt for evaluation the performance of promising lines in rice to agronomic and genetic performance under Egyptian conditions. Results revealed that the Giza 179 produced the highest grain yield (5.44 kg/m2) followed by the promising line GZ9461-4-2-3-1 (5.26 kg/m2) and the commercial variety Giza 178 (5.07 kg/m2). Analysis of variance revealed significant differences among genotypes for all traits.

The high genotypic coefficient of variability (gcv) and phenotypic coefficient of variability (pcv) recorded for number of filled grains/panicle indicate the existence of wide spectrum of variability for this trait and offer greater opportunities for desired trait through phenotypic selection. The phenotypic variance was higher than the corresponding genotypic variance for traits. Estimation of heritability ranged from 49.16% to 99.52% for number of panicle/plant and duration traits, respectively. High heritability coupled with high genetic advance was observed for growing period and plant height and indicate the lesser influence of environment in expression of these traits and prevalence of additive gene action in their inheritance hence, amenable of simple selection. The promising rice lines GZ9461-4-2-3-1 and GZ10147-1-2-1-1 performed better as compared with the commercial variety. Selection of these traits would be more effective for yield improvement in rice and these promising lines would be more valuable materials for breeders engaged in the development of high yielding cultivars. Source of original articles: http://bit.ly/1VSTXw7
 
More articles of this issue: Assessment of the efficiency of essential oils of Ocimum gratissimum L. (Lamiaceae) and Hyptis suaveolens (L.) Poit. (Lamiaceae) in the biological control against sclerotinia of Abelmoschus esculentus (L.) Moench (Malvaceae) or okra (cultivars Volta and H

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

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Source: International Journal of Agronomy and Agricultural Research @2015  Journal of agronomy

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Effect of Ethephon stimulation frequency in downward tapping on the production potential in upward tapping among PB 260 clone of Hevea brasiliensis in Ivory Coast

By Kouadio Dian1*, Maturin Koffi Okoma1, Edmond Kouablan Koffi1, Désiré N’da Pokou1, Modeste Kouassi Kan1, Gislaine Zaka Kouadjo1, Nazaire Koffi II Kouassi1, Abdourahamane Sangare3 and Samuel OBOUAYEBA

1. Laboratoire Central de Biotechnologie, Centre National de Recherche Agronomique Abidjan, Côte d’Ivoire
2. Station de recherche de Bimbresso, Centre National de Recherche Agronomique Abidjan, Côte d’Ivoire
3. CORAF, Dakar, Sénégal

The present study evaluates the impact of different stimulation frequencies of Ethephon in downward tapping on the production potential of trees in upward tapping of the clone PB 260 of Hevea brasiliensis. Six parameters are measured: production per tree, tapping panel dryness percentage and four latex biochemical parameters which were dry rubber content, inorganic phosphorus, sugar and thiols. The results show that in downward tapping, generally, the biochemical parameters level is inversely proportional to the stimulation frequency during years 9 and 10. Regarding the production, beyond four stimulations per year, it is inversely proportional to the stimulation frequency. 

When the trees are tapped upward with a four stimulation uniform per year, the production continues to be low according to the preceding frequency stimulation in downward tapping beyond four stimulations per year. However, the factors which caused this decrease don’t seem to be the same in the first and the second years of upward tapping. In the first year of upward tapping, according to the evolution of the biochemical parameters, the decrease in production is linked to physiological tiredness due to the stimulation in downward tapping. On the other hand, in the second year, it is a phenomenon of familiarization to Ethephon which could explain the decrease in production on treatments which received more than four stimulations per year in downward tapping. In second year of upward tapping, the trees need more than four times per year Ethephon stimulations to reach their production potential. Get the full articles at: Int. J. Agr. Agri. Res. 8(2), 51-63, February 2016.

More articles of this issue: Impact of environmental conditions on the yield variability of durum wheat (Triticum durum. Desf ) and its associated characters at Algerian semi-arid areas

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
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Assessment of diversity and distribution of Snails (Mollusca: Gastropoda) in the Agroecosystem of Faisalabad, Pakistan

By Javaria Altaf1*, Naureen Aziz Qureshi2, Syed Hammad Raza3, Muhammed Javed Iqbal Siddiqui4

1. Department of Zoology, Government College University Faisalabad, Pakistan
2. Government College Women University Faisalabad, Pakistan
3. Department of Botany, Government College University Faisalabad, Pakistan
4. Department of Zoology, Government Postgraduate College, Samanabad, Faisalabad, Punjab,
   Pakistan

Abstract

Gastropods have never been studied in Punjab, Pakistan with reference to its diversity and distribution. Different ecological factors have been studied which affect the distribution of the snail in the agroecosystem of this region. Total number of 19290 snails specimens, were collected from different cropland areas of 24 villages of Faisalabad including sugarcane, wheat, fodder, vegetables fields and ditches. The specimens were identified on the basis of recent identification keys and diagrammatic description provided in them to understand the biodiversity in this region. The diversity index was found highly significant in sugarcane, wheat, fodder, and vegetables fields however the results were non-significant in case of ditches. The relative abundance was maximum in sugarcane and least in ditches. The diversity index was significantly high in all months except in April whereas the relative abundance was maximum in July and August. It can be concluded that due to environmental degradation and water pollution the snail diversity is non significant, in ditches however in the agroecosystem it is a pest. It can be suggested that strategies must be developed to control water quality deterioration and its biological control as a pest.Get the full articles at: http://bit.ly/22b673z

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publisher Name: International network For natural Sciences (INNSPUB)

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Source: Journal of Biodiversity and Environmental Sciences @2016 Research Journal of Environmental Sciences

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Estimating stored carbon stock in oil palm (Elaeis guineensis Jacq.) plantation by age group in PT daria dharma pratama plantation Bengkulu Indonesia - IJJAR

By: Yuliyanto, Dede Setiadi, Sulistijorini
Key Words: Carbon biomass, Oil palm plantation, PT DDP.
Int. J. Agr. Agri. Res. 8(1), 81-86, January 2016.
Abstract

The increasing concentration of carbon in the atmosphere is a serious environmental problem that can affect living system on earth. The increase in greenhouse gas emissions caused global warming that will affect the world climate change and rising sea levels. Climate change will disrupt farming system in both the micro and macro scale.

Estimation of forest carbon emissions is one of the important efforts to reduce climate change. Land clearing for palm oil plantations will affect the stored carbon in the forest reserves. The aim of this study is to determine the biomass stored carbon stocks in oil palm plantations by age group in oil palm plantations in PT Daria Dharma Pratama (PT DDP), Bengkulu Province, Indonesia. Methods of measuring the stored carbon stock of palm oil biomass using allometric equations, is non-destructive method.

Methods of measuring the stored carbon stock of undergrowth biomass and piled of oil palm fronds up was conducted by destructive methods. The largest biomass stored carbon stock was in the age group of 11-15 years crop of 69.32 tonnes ha-1. Then, in the age group of 16-20 years were 54.13 tonnes ha-1, age group of >20 years were 34.91 tonnes ha-1, the age group of 6-10 years were 34.16 tonnes ha-1, and the age group 0 – 5 year were 6.98 tonnes ha-1, respectively. Stored carbon stock in oil palm was influenced by the age of the plant, soil fertility, as well as plant growth and development. Get the full articles at: http://bit.ly/21caZbF

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

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Source: International Journal of Agronomy and Agricultural Research @2015  Journal of agronomy

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Morphological and physiological changes of aloe (Aloe barbadensis Miller.) in response to culture media - IJAAR an open access scholarly research journals

By Amir Foroutan Nia1, Abohassan Farhang Sardrodi2, Mohammad Mehdi Habibi1, Sanaz Bahman1*

1. Department of Horticulture, Islamic Azad University, Karaj Branch, Karaj, Iran
2. Department of Horticultural Sciences, University of Zanjan, Iran

Key words: Aloe barbadensis Miller., Culture media, Morphological, physiological parameters

Aloe is a plant of the family Liliaceae, with fleshy leaves and filled with gel containing health care costs are enormous and are used in the treatment of many diseases. To investigate the effects of culture media on morphological and physiological parameters of Aloe (Aloe barbadensis Miller.) plants, an experiment on the basis of randomized complete blocks design with 13 treatment and 4 replications was conducted in 2013. The treatments were components of manure, sand, peat, pumice, tea wastes and rice husks in two level (25% and 50%) with soil in two level (50% and 75%). Effect of culture media was significant on all of parameters except for leaf diameter and total suspended solid (TSS). Results showed that the most number of leaves per plant (13 leaves.plant-1) and root weight (41g.plant-1) in medium of 25% pumice + 75% soil, the most leaf width (3.4 cm) with 25% peat + 75% soil, the maximum offset weight (65.5 g.plant-1), gel weight (257.2 g.plant-1) and weight of plant aerial parts (547.5 g.plant-1) in treatment of 50% pumice + 50% soil and the highest number of offset per plant (3.25 offset.plant-1) with application of 25% tea wastes + 75% soil was attained. The best treatments to increase the morphological and physiological parameters are components of pumice, peat and tea wastes in combination with soil because of higher amount of organic carbon and cation exchange capacity and proper pH of the media.  Get the full articles at: http://www.innspub.net/volume-6-number-6-june-2015-ijaar/

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

Source: International Journal of Agronomy and Agricultural Research @2015  Journal of agronomy

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Estimates of gene action for yield and its components in bread wheat Triticum aestivum L. - IJAAR An Open Access Research Journals

By AA. Kandil1, AE. Sharief2,*, Hasnaa SM. Gomaa3

1. Department of Agronomy, Mansoura University, Egypt (1)
2. Agriculture Research Center, Ministry of Agriculture and land reclamation, Egypt  (2,3)

Key Words: Bread Wheat Cultivars, Narrow Sense Heritability, Broad sense heritability.

In order to study gene action for yield and its components using 8 × 8 diallel crosses excluding reciprocals during 2013/2014 and 2014/2015 growing seasons at Tag El-Ezz Research Station, Dakahlia Governorate, the genotypes were Sides 12, Gemmiza 11, Maser 1, Maser 2, Shandaweel 1, Giza 168, Sakha 93, and Sakha 94. Results revealed that both additive (D) and dominance (H1 and H2) genetic variance were significant for the all studied characters, indicating the importance of additive and dominance gene effects in controlling these characters.

The dominance genetic variance was higher in the magnitude as compared to additive one, resulting in (H1/D)0.5 exceeding than more unity for all studied characters except spike density and number of tillers/plant. The “F” values which refer to the covariance of additive and dominance gene effects in the parents revealed positive and significant for flag leaf length and flag leaf area, extrusion length, number of tillers/plant number of spikes/plant, number of grains/spike and 1000- grain weight, indicating that dominant alleles were more frequent than the recessive ones in the parents for this character, while negative “F’ value for remaining characters indicated excess of recessive alleles among parents.

The overall dominance effects of heterozygous loci h2, indicated directional dominance for heading date, flag leaf length, flag leaf area, spike length, extrusion length, spike density, grain yield/spike, number of tillers/plant number of spikes/plant, number of grains/ spike and grain yield/plant. Proportion of genes with positive and negative effects in the parent (H2/4H1) was deviated from 0.25 for all studied characters Heritability in narrow sense was moderate (0.369) for grain yield/plant. Get the full articles at: http://www.innspub.net/ijaar/estimates-of-gene-action-for-yield-and-its-components-in-bread-wheat-triticum-aestivum-l/

Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Publisher Name: International Network For Natural Sciences (INNSPUB)

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Source: International Journal of Agronomy and Agricultural Research @2016  Journal of agronomy

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