scholarly journals Effect of Soil Solarization and Bio-fertilization on Strawberry Production and pathogenic Fungi under Siwa Oases Conditions

2021 ◽  
Vol 4 (9) ◽  
pp. 33-64
Author(s):  
Gomaa, S .S ◽  
Kobisi A .M
Keyword(s):  
Pathogenic Fungi ◽  
Soil Solarization

scholarly journals Efficacy of Organic Amendments and Soil Solarization against Wilt Severity and their Effects on Pathogenic Fungi and Tomato Production

2020 ◽  
Vol 9 (2) ◽  
pp. 93-103
Author(s):  
Hayfa Jabnoun-Khiareddine ◽  
Boutheina Mejdoub-Trabelsi ◽  
Rania Aydi Ben Abdallah ◽  
Riad Sedki Riad El-Mohamedy ◽  
Mejda Daami-Remadi
Keyword(s):  
Soil Amendments ◽  
Organic Amendments ◽  
Pathogenic Fungi ◽  
Cattle Manure ◽  
Soil Solarization ◽  
Infested Soil ◽  
Vascular Wilt ◽  
Tomato Production ◽  
Potato Dextrose Agar Medium ◽  
Tomato Plants

Soil solarization coupled or not with three soil amendments (cattle manure, bio-compost, and Biocat-15) was evaluated for its efficacy against vascular wilt severity on tomato plants grown under greenhouse conditions in a naturally infested soil. In solarized plots, wilt severity, estimated through the vascular discoloration extent and noted on randomly selected tomato plants, was significantly reduced following all the tested organic amendments. Complete wilt suppression was achieved using cattle manure. Vascular wilt severity noted on symptomatic tomato plants was 28% higher in non-solarized plots than in solarized ones and this for all organic amendments combined. Plots amended with Biocat-15 showed 29% less disease severity as compared to the two other treatments. Fungal isolations performed on Potato Dextrose Agar medium from roots, collars and stems of symptomatic and randomly selected plants, revealed the involvement of Fusarium oxysporum, F. solani, Rhizoctonia solani, Colletotrichum coccodes and R. bataticola in the observed wilts. Their isolation frequencies varied depending on wilt severity, solarization treatments (solarized or non-solarized) and tested soil amendments. Tomato production varied significantly depending on solarization treatments and tested organic amendments. Plants amended with cattle manure yielded significantly comparable production in the solarized and non-solarized plots while this production parameter was reduced by 19 and 27% following Biocompost and Biocat-15 treatments, respectively, on tomato plants grown in non-solarized plots. As for solarization effects, for all organic amendments combined, tomato production was significantly reduced by about 15% in the non-solarized greenhouse compared to the solarized one. Results from the current study showed that, under natural Tunisian conditions, single application of solarization combined with organic amendment not only reduced wilt severity, but also significantly enhanced tomato production. Thus, the repetitive combination of solarization and organic amendments could be a credible alternative for managing various soilborne fungal diseases and improving tomato yield in heavily infested fields.

Soil solarization, a non-chemical technique for controlling Orobanche crenata and improving yield of faba bean

Agronomie ◽  
2001 ◽  
Vol 21 (8) ◽  
pp. 757-765 ◽  
Author(s):  
Giovanni Mauromicale ◽  
Giuseppe Restuccia ◽  
Mario Marchese
Keyword(s):  
Faba Bean ◽  
Soil Solarization ◽  
Orobanche Crenata ◽  
Chemical Technique

IDENTIFIKASI JENIS JAMUR PATOGEN UNTUK PENGENDALIAN RAYAP TANAH Coptotermes sp.

PERENNIAL ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 33
Author(s):  
Astuti Arif ◽  
. Syahidah ◽  
Sitti Nuraeni
Keyword(s):  
Key Words ◽  
Pathogenic Fungi ◽  
Wide Distribution ◽  
Subterranean Termite ◽  
The World ◽  
Identification Of Fungi ◽  
Screening And Identification ◽  
Termite Attack ◽  
Penicillium Brevicompactum ◽  
Aspergillus Sp

Fungi have a great diversity and wide distribution at the world. It can be used as the alternative technology for controlling of subterranean termite attack, particularly genus Coptotermes knowned as the wooden destructive organism, by using entomophatogenic fungi. For the purpose of the study, several isolate sources were taken from some locations. The results show that eight numbers of pathogenic fungi was founded by screening and identification of fungi taken from 19 numbers of isolate sources. The pathogenic fungi were Beauveria sp., Penicillium brevicompactum, P. rubrum, Paecilomyces fulvus, Fusarium verticolloides, Pythium sp., and Aspergillus sp. Key words: Jamur entomopatogen, Coptotermes sp.

SOYBEAN AND FLAX SELECTION METHODS

1970 ◽  
pp. 19-23
Author(s):  
V. М. Lukomets ◽  
S. V. Zelentsov
Keyword(s):  
High Resistance ◽  
Fungal Pathogens ◽  
Selection Process ◽  
Pathogenic Fungi ◽  
Cultivated Plants ◽  
Practical Implementation ◽  
Physiological Basis ◽  
Oil Crops ◽  
Soybean Genotypes ◽  
Genetically Determined

To improve the effectiveness of the soybeans and oil flax breeding, research to improve existing and develop new breeding methods are conducting in all-Russia Research institute of Oil Crops (Krasnodar). One of the improved methods for the soybean breeding, based on the use of sources of complexes of compensatory genes, is the CCG technology, which allows to create varieties with an increased yield of a heterotic level transmitted along the progeny for the entire life cycle of the variety. For the purpose of non-transgenic production of new traits, a theory of polyploid recombination of the genome (TPR) was formulated, which models the mechanism of the natural formation of polymorphism in the centers of origin of cultivated plants. On the basis of this theory, a method of breeding (TPR-technology) has been developed, which makes it possible to obtain recombinant reploids of soybeans and oil flax with an extended spectrum of traits. Of these reploids, the soybean lines with increased sucking force of the roots, providing high drought resistance, were distinguished; cold-resistant soybean lines, which stand in the phase of shoots of freezing to minus 5 °С; lines of oil flax with complete resistance to flax sickness of soil and high resistance to Fusarium; winter-hardy flax lines that withstand winter frosts down to minus 20–23 °С and ripen one and a half months earlier than spring sowings. Another original developed method is the ODCS-technology for isolating and selecting soybean genotypes with high resistance to fungal pathogens. The physiological basis of ODCS-technology is the blocking of osmotic nutrition of pathogenic fungi due to genetically determined increased osmotic pressure in the tissues of host plants. The practical implementation of CCG-, TPR- and ODKS-technologies in the selection process, allowed to create a whole series of soybean and oil flax varieties with improved or new traits.

Cas de suie de l'érable et de chancre du peuplier dans le canton de Genève

2016 ◽  
Vol 167 (2) ◽  
pp. 98-104
Author(s):  
Bastien Cochard ◽  
François Lefort
Keyword(s):  
Internal Transcribed Spacer ◽  
Pathogenic Fungi ◽  
Fungal Flora ◽  
Acer Campestre ◽  
Cytospora Chrysosperma ◽  
Pure Cultures ◽  
Populus X Euramericana ◽  
Bark Peeling ◽  
Specific Symptoms ◽  
First Time

A case of sooty bark disease and Cytospora poplar canker in the Canton of Geneva In summer 2014, a case of sooty bark disease caused by Cryptostroma corticale on an individual field maple (Acer campestre) and two cases of poplar canker due to Cytospora chrysosperma on Populus x euramericana were identified genetically for the first time on the territory of the Canton of Geneva. In both cases, the trees presented signs of very advanced dieback, accompanied by specific symptoms such as bark peeling and sooty plaques for the maple, and loose twisted bark layers and black colouring of the wood in structural branches of the poplars. Sampling was carried out in the symptomatic areas and components of the fungal flora were isolated in pure cultures in order to identify any pathogenic fungi. The molecular analysis of the rDNA internal transcribed spacer (ITS) sequences made it possible to identify precisely all pure isolates obtained. The results showed a majority presence of C. corticale in the maple tree, and of C. chrysosperma in the two poplars. Both these fungi are little known in Switzerland and Europe, and their presence is maybe associated with changes in the climate.

EFEKTIFITAS RHIZOCTONIA MIKORIZA DALAM MENGINDUKSI KETAHANAN ANGGREK PHALAENOPSIS AMABILIS TERHADAP FUSARIUM SP.

2014 ◽  
Vol 14 (2) ◽  
Author(s):  
R. Soelistijono
Keyword(s):  
Biological Control ◽  
Disease Resistance ◽  
Fusarium Solani ◽  
Pathogenic Fungi ◽  
Resistance Induction ◽  
Fusarium Sp

This study examines the effectiveness of mycorrhizal Rhizoctonia resistance induction in Phalaenopsis amabilis against Fusarium sp. Fusarium solani is known as pathogens that attack many orchids P. amabilis (Chung et al., 2011) compared to other pathogenic fungi. Attack of Fusarium sp. will cause rot and yellow colored leaves. Until now there has been known as a biological control orchid against Fusarium sp. In this study tested the endurance locations in Sleman and Surakarta to see the effectiveness of a good orchid growth induced by Rhizoctonia mycorrhizal or not to attack by Fusarium sp. The results of the study showed that mycorrhizal Rhizoctonia able to inhibit the attack of Fusarium sp. It is shown by the value of the index of disease resistance  (DSI) in P. amabilis orchid mycorrhizal Rhizoctonia induced lower than that not induced. Mycorrhizal Rhizoctonia induction results in Sleman provide a more real than mycorrhizal Rhizoctonia induction in Surakarta.

Influence of a BactoFil microbiological preparation on the intensity of infection by Rhizoctonia solani and the effects on sugar beet yield and quality

2012 ◽  
pp. 102-109
Author(s):  
Suzana Kristek ◽  
Andrija Kristek ◽  
Dragana Kocevski ◽  
Antonija K. Jankovi ◽  
Dražen Juriši
Keyword(s):  
Sugar Beet ◽  
Rhizoctonia Solani ◽  
Nitrogen Fertilizer ◽  
Soil Analysis ◽  
Block Design ◽  
Sugar Content ◽  
Pathogenic Fungi ◽  
Fertilizer Application ◽  
Beet Root ◽  
Set Up

The experiment was set up on two types of the soil: Mollic Gleysols (FAO, 1998) and Eutric Cambisols where the presence of pathogenic fungi – sugar beet root decay agent – Rhizoctonia solani has been detected since 2005. In a two year study (2008, 2009), the experiment was set up by completely randomized block design in 4 repetitions and 16 different variants. Two beet varieties, Belinda, sensitive to pathogenic fungi R. solani, and Laetitia, tolerant to pathogenic fungi R. solani), were grown. The microbiological preparation BactoFil was applied in different amounts in autumn and spring. In addition, the nitrogen fertilizer application, based on the results of soil analysis, was varied. The following parameters were tested: amount of infected and decayed plants, root yield, sugar content, sugar in molasses and sugar yield. The best results were obtained by applying the microbiological preparation BactoFil, and by 30% reduced nitrogen fertilizer application. Preparation dosage and time of application depended on soil properties.

Sign in / Sign up

Export Citation Format

Share Document