scholarly journals Badania właściwości fungistatycznych gleby

2014 ◽  
Vol 13 (1) ◽  
pp. 151-167 ◽  
Author(s):  
R. S. Kanaujia
Keyword(s):  
Rhizosphere Effect ◽  
Pennisetum Typhoides ◽  
Soil Fungistasis

This paper presents the results of study the effect of rhizosphere of <i>Pennisetum typhoides</i> on the soil fungistasis. The fungistasis of three different regions of the root has been investigated in relation to rhizosphere effect.

scholarly journals Influence of pH and Matric Potential on Germination of Cephalosporium gramineum Conidia

Plant Disease ◽  
1998 ◽  
Vol 82 (9) ◽  
pp. 975-978 ◽  
Author(s):  
Cynthia A. Blank ◽  
Timothy D. Murray
Keyword(s):  
Soil Moisture ◽  
Soil Ph ◽  
Significant Influence ◽  
Phosphate Buffer ◽  
Mineral Salts ◽  
Matric Potential ◽  
High Soil Moisture ◽  
Soil Fungistasis ◽  
Cephalosporium Gramineum ◽  
Influence Of Ph

Germination of Cephalosporium gramineum conidia in soil was up to twofold greater at -0.064 MPa than at -0.037 and -0.007 MPa when incubated at 5°C for 2 days. Soil pH from 4.7 to 7.5 did not have a significant influence on germination of conidia and the interaction between soil pH and matric potential on germination was not significant. Soil fungistasis, which was previously observed for conidia of C. gramineum, was not observed in these studies. Germination of conidia on mineral salts agar containing phosphate buffer was significantly less at pH 4.5 than at 5.5, 6.5, or 7.5 at 5°C in one of two experiments; however, pH had no influence on germination at 10 or 20°C in two experiments. Although Cephalosporium stripe is more severe under conditions of high soil moisture and low soil pH, increased germination of conidia in response to these factors does not explain the observed increase in disease.

scholarly journals Seleção de plantas com potencial para fitorremediação de tebuthiuron

2003 ◽  
Vol 21 (3) ◽  
pp. 451-458 ◽  
Author(s):  
F.R. Pires ◽  
C.M. Souza ◽  
A.A. Silva ◽  
M.E.L.R. Queiroz ◽  
S.O. Procópio ◽  
...  
Keyword(s):  
Raphanus Raphanistrum ◽  
Amaranthus Hybridus ◽  
Crotalaria Juncea ◽  
Pennisetum Typhoides ◽  
Helianthus Annus

Este trabalho teve como objetivo selecionar espécies tolerantes ao tebuthiuron, visando utilizá-las em programas de fitorremediação de solos contaminados com esse herbicida. Foram avaliadas: Amaranthus hybridus, Crotalaria juncea, Chamaesyce hyssopifolia, C. hirta, Canavalia ensiformes, Helianthus annus, Pennisetum typhoides, Estizolobium aterrimum, Raphanus raphanistrum e Crotalaria incana. O experimento foi conduzido em casa de vegetação, em vasos contendo 3 dm³ de solo de textura argilo-arenosa com 2,18 dag kg¹ de matéria orgânica. O experimento foi delineado em blocos ao acaso, com três repetições de tratamentos em fatorial 10 x 4 x 4, os quais foram constituídos por 10 espécies, quatro doses de tebuthiuron (0,0; 5,0; 1,0; e 2,0 kg ha-1), aplicadas em pré-emergência, e quatro épocas de avaliação (15, 30, 45 e 60 dias após a semeadura). Foram avaliadas a fitotoxicidade do herbicida, a altura de plantas e a massa de matéria seca da parte aérea, de raízes e do total da planta. Canavalia ensiformes e Pennisetum typhoides foram tolerantes ao tebuthiuron na dose de 0,5 kg ha-1. Estizolobium aterrimum tolerou tebuthiuron até a dose de 1,0 kg ha¹, apresentando fitotoxicidade menos acentuada e menor redução de altura de plantas e da massa de matéria seca da parte aérea, de raízes e do total da planta em relação ao tratamento testemunha.

scholarly journals Ethylene and soil fungistasis

Nature ◽  
1974 ◽  
Vol 251 (5472) ◽  
pp. 259-259 ◽  
Author(s):  
J. M. LYNCH ◽  
S. H. T. HARPER
Keyword(s):  
Soil Fungistasis

Rhizosphere Effect on Soil Algae

Nature ◽  
1960 ◽  
Vol 185 (4707) ◽  
pp. 179-180 ◽  
Author(s):  
W. HADFIELD
Keyword(s):  
Soil Algae ◽  
Rhizosphere Effect

scholarly journals Cytological Studies of Desynaptic Stock in Pearl Millet, Pennisetum typhoides (Burm.) S. and H

CYTOLOGIA ◽  
1973 ◽  
Vol 38 (2) ◽  
pp. 311-316 ◽  
Author(s):  
Jagtar S. Dhesi ◽  
B. S. Gill ◽  
H. L. Sharma
Keyword(s):  
Pearl Millet ◽  
Pennisetum Typhoides

scholarly journals Analysis of the Bacterial and Fungal Community Profiles in Bulk Soil and Rhizospheres of Three Mungbean [Vigna radiata (L.) R. Wilczek] Genotypes through PCR-DGGE

2020 ◽  
Vol 77 ◽  
pp. 1-26
Author(s):  
Anna Mae M. de los Reyes ◽  
Eureka Teresa M. Ocampo ◽  
Ma. Carmina C. Manuel ◽  
Bernadette C. Mendoza
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Diversity Index ◽  
Agricultural Practices ◽  
Fungal Communities ◽  
Bulk Soil ◽  
Initial Assessment ◽  
Rhizosphere Effect ◽  
Soil Microbial Diversity

Each plant species is regarded to substantially influence and thus, select for specific rhizosphere microbial populations. This is considered in the exploitation of soil microbial diversity associated with important crops, which has been of interest in modern agricultural practices for sustainable productivity. This study used PCR-DGGE (polymerase chain reaction - denaturing gradient gel electrophoresis) in order to obtain an initial assessment of the bacterial and fungal communities associated in bulk soil and rhizospheres of different mungbean genotypes under natural field conditions. Integrated use of multivariate analysis and diversity index showed plant growth stage as the primary driver of community shifts in both microbial groups while rhizosphere effect was found to be less discrete in fungal communities. On the other hand, genotype effect was not discerned but not inferred to be absent due to possible lack of manifestations of differences among genotypes based on tolerance to drought under non-stressed environment, and due to detection limits of DGGE. Sequence analysis of prominent members further revealed that Bacillus and Arthrobacter species were dominant in bacterial communities whereas members of Ascomycota and Basidiomycota were common in fungal communities of mungbean. Overall, fungal communities had higher estimated diversity and composition heterogeneity, and were more dynamic under plant growth influence, rhizosphere effect and natural environmental conditions during mungbean growth in upland field. These primary evaluations are prerequisite to understanding the interactions between plant and rhizosphere microorganisms with the intention of employing their potential use for sustainable crop production.

scholarly journals Synthesis and Characterization of Natural Fibers Reinforced Fiber Epoxy Composites

2015 ◽  
Vol 51 ◽  
pp. 47-53
Author(s):  
U. Mahaboob Basha ◽  
D. Mohana Krishnudu ◽  
P. Hussain ◽  
K. Manohar Reddy ◽  
N. Karthikeyan ◽  
...  
Keyword(s):  
Room Temperature ◽  
Natural Fibers ◽  
Epoxy Composites ◽  
Synthesis And Characterization ◽  
Mechanical And Thermal Properties ◽  
Epoxy System ◽  
Pennisetum Typhoides ◽  
The Matrix ◽  
Reinforced Fiber

In the current work epoxy resin is chosen as matrix, treated Sacharum offinarum ( SugarCane) fiber, Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler are chosen as reinforcement. Room temperature cured Epoxy System filled with Sacharum offinarum fiber and Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler are synthesised by mechanical shear mixer, then kept in a Ultra sonic Sonicator for better dispersion of Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler in the matrix. Different weights of modified Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler (1,2,3,4,5 gm wt) has been incorporated into the Epoxy matrix in order to study the variation of Mechanical and Thermal properties.

scholarly journals Rhizosphere and non-rhizosphere mycoflora of two ferns from Panhala Fort, Kolhapur, Maharashtra, India

2016 ◽  
Vol 8 (3) ◽  
pp. 8638
Author(s):  
P. R. Hande ◽  
M. M. Dongare
Keyword(s):  
Western Ghats ◽  
Soil Fungi ◽  
Fungal Species ◽  
Lower Percentage ◽  
Rhizosphere Effect ◽  
Rhizosphere Soils ◽  
Colony Forming Units ◽  
Fern Species ◽  
Preliminary Study

Hypodematium crenatum (Forssk.) Kuhn and Anogramma leptophylla (L.) Link are threatened fern species from Western Ghats.  The present paper endorses the preliminary study on mycoflora associated with these ferns.  Eighteen fungal species have been isolated from rhizosphere and non-rhizosphere soils of selected ferns.  More diversity of fungi was observed in non-rhizosphere as compared to rhizosphere soils of both the ferns.  Aspergillus was found to be the most dominant genus among the population followed by Penicillium.  Higher percentage of fungal species is shown by H. crenatum, i.e., 44.5% in non-rhizosphere and 27.77% in rhizosphere; while a lower percentage of fungal species was found in A. leptophylla, i.e., 38.88% in non-rhizosphere and 16.66% in rhizosphere.  Number of colony forming units per gram soil was more in non-rhizosphere of A. leptophylla while it was less in non-rhizosphere of H. crenatum.  Inhibitory rhizosphere effect was exerted by A. leptophylla while H. crenatum has stimulatory effect on soil fungi. 

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