نتایج جستجو برای: seedling damping

تعداد نتایج: 36520  

Journal: :International Journal of Current Microbiology and Applied Sciences 2019

Journal: :Phytopathology 2009
Rosa E Raudales Erica Stone Brian B McSpadden Gardener

Seed treatment with a 2,4-diacetylphloroglucinol (DAPG)-producing Pseudomonas strain ameliorated abiotic stress disorder in corn caused by growth in a low-pH soil. In two consecutive growing seasons, Wood1R-treated seed gave rise to plants that grew taller (P<or=0.05), had fewer foliar lesions (P<or=0.10), and provided greater yields (P<or=0.1) than the negative controls when grown in soil with...

Journal: :Phytopathology 2004
Steven J Scheuerell Walter F Mahaffee

ABSTRACT Compost tea is being used increasingly in agricultural production to control plant diseases. However, there has been limited investigation relating disease control efficacy to various compost tea production methods, particularly compost tea produced with active aeration and additives to increase microbial population densities in compost tea. Aerated compost tea (ACT) and nonaerated com...

2006
Brenna J. Aegerter Thomas R. Gordon

Pitch canker, caused by Gibberella circinata Nirenberg & O’Donnell, is a problem for pines in both native and planted stands. The aerial phase of the disease results in shoot and canopy dieback, whereas soil or seedborne inoculum can cause damping off of emerging seedlings. Based on the extent of lesion development on inoculated shoots, families of Pinus radiata have been shown to differ signif...

Journal: :Revista de biologia tropical 2011
Maria Clara Castellanos Pablo R Stevenson

Life history and recruitment information of tropical trees in natural populations is scarce even for important commercial species. This study focused on a widely exploited Neotropical canopy species, Pachira quinata (Malvaceae), at the southernmost, wettest limit of its natural distribution, in the Colombian Amazonia. We studied phenological patterns, seed production and natural densities; asse...

Journal: :Letters in applied microbiology 2012
A Yekkour N Sabaou A Zitouni R Errakhi F Mathieu A Lebrihi

UNLABELLED During a screening for potential plant disease control actinomycetes, a total of 133 strains were isolated from Saharan soil samples of seven Algerian regions by dilution technique on chitin-vitamins agar medium. Screening for antagonistic properties using streak assay method showed that 25% of isolates demonstrated strong activities against a wide range of plant pathogenic fungi. Du...

2009
M. León P. M. Yaryura M. S. Montecchia A. I. Hernández O. S. Correa N. L. Pucheu N. L. Kerber A. F. García

The purpose of this study was to isolate and select indigenous soil Pseudomonas and Bacillus bacteria capable of developing multiple mechanisms of action related to the biocontrol of phytopathogenic fungi affecting soybean crops. The screening procedure consisted of antagonism tests against a panel of phytopathogenic fungi, taxonomic identification, detection by PCR of several genes related to ...

Journal: :Computers in Human Behavior 2013
Vimala Balakrishnan Azra Shamim

Malaysians were reported to have the most number of Facebook friends, spend more time on Facebook and might be addicted to Facebook as well. This paper explored Facebook usage pattern, motivations and psycho logical/behavioural factors affecting the users. A focus group study was first conducted to explo re motives to use Facebook and symptoms related to excessive Facebook usage. The themes eme...

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