scholarly journals Study on Relative Preferences of Foliar Nematode, Aphelenchoides besseyi Christie between Rice and Tuberose on Biochemical Factors

2017 ◽  
Vol 6 (10) ◽  
pp. 1648-1656
Author(s):  
Nagulapalli Sneha Latha ◽  
Ajoy Kumar Mukhopadhyay ◽  
Nagamandla Ramya Sri ◽  
Nihal Ravindranath ◽  
Dhiren Chatterji
Keyword(s):  
Aphelenchoides Besseyi ◽  
Foliar Nematode ◽  
Relative Preferences

scholarly journals Foliar Nematode Aphelenchoides spp. (Nematoda: Aphelenchida: Aphelenchoididae)

EDIS ◽  
2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Lindsay Wheeler ◽  
William Talmadge Crow
Keyword(s):  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Plant Feeding ◽  
Plant Parasites ◽  
Aphelenchoides Besseyi ◽  
The Common ◽  
Aphelenchoides Fragariae ◽  
Foliar Nematode ◽  
Plant Parasitic ◽  
Aphelenchoides Ritzemabosi

There are nematodes of several genera that feed on plant stems and foliage, including Aphelenchoides, Bursaphelenchus, Anguina, Ditylenchus and Litylenchus. Herein, we apply the common name “foliar nematode” specifically to plant-feeding nematodes in the genus Aphelechoides, specifically Aphelenchoides besseyi, Aphelenchoides fragariae, and Aphelenchoides ritzemabosi. While most members of Aphelenchoides are fungivorous (feed on fungi), these three species have populations that are facultative plant-parasites that can feed on live plant tissue. Ten other species of Aphelenchoides also are recognized as facultative plant-parasites, but these are not as commonly encountered or as economically significant as the aforementioned species. Unlike most plant-parasitic nematodes, foliar nematodes can infest the aerial portions of plants rather than dwelling strictly in soil and plant roots. Damage from their feeding can reduce yield in food crops and ruin the appearance of ornamentals.https://edis.ifas.ufl.edu/in1279

scholarly journals Management of Aphelenchoides besseyi infecting Polianthes tuberosa in West Bengal, India

2020 ◽  
Vol 41 (6) ◽  
pp. 1774-1780
Author(s):  
V. Kadam ◽  
◽  
R.K. Patidar ◽  
R. Thangjam ◽  
M. Pathak ◽  
...  
Keyword(s):  
Plant Growth ◽  
West Bengal ◽  
Growth Parameters ◽  
Infected Plant ◽  
Germination Percentage ◽  
Nematode Population ◽  
Stunted Growth ◽  
Aphelenchoides Besseyi ◽  
Untreated Check ◽  
Foliar Nematode

Aim: The study was conducted for management of foliar nematode, Aphelenchoides besseyi through different treatment modules in tuberose, Polianthes tuberose. Methodology: A field experiment was carried out with seven treatment modules with four replications to assess the efficacy of treatment modules to manage the foliar nematode in tuberose variety, Calcutta Double. Observations on germination percentage and spike emergence as well as initial and final nematode population in bulbs and plant growth parameters were analysed.? Results: The experiment was conducted with naturally infected plant of tuberose bearing an initial nematode population per five bulbs. The per cent change over treated bulb was found significantly different from the control. The experiment revealed that the germination percent of tuberose bulbs increased under the treatment modules compared to untreated control. Emergence of 55 per cent and 100 per cent spike in treatment modules was earlier than the untreated check. Plant growth parameters were superior in treatment modules as compared to control. Symptoms like stunted growth of plants prickle like structures on the scape and flower and hardy brown flowers in untreated plants were not found in the treated plots.? Interpretation: Symptom development in different parts of tuberose plants increased with increase in population of foliar nematode rendering to the unmarketable tuberose plants. Therefore, an urgent need of management of foliar nematode is documented with seven treatment modules and the modules were found effective in managing the nematode population in field condition.

Aphelenchoides besseyi parasitizing cowpea (Vigna unguiculata) in Brazil

Plant Disease ◽  
2021 ◽  
Author(s):  
Luciany Favoreto ◽  
Rafaela Bueno ◽  
Angélica Calandrelli ◽  
Patrícia Priscila França ◽  
Mauricio Conrado Meyer ◽  
...  
Keyword(s):  
Common Bean ◽  
Vigna Unguiculata ◽  
Host Reaction ◽  
First Report ◽  
Cowpea Cultivars ◽  
The World ◽  
Cotton Plants ◽  
Aphelenchoides Besseyi ◽  
Leaf Deformation

Several species of nematodes are known to cause losses to cowpea (Vigna unguiculata) throughout the world. In Brazil, Aphelenchoides besseyi was recently described causing damages on soybean, cotton, and common bean, but no report was found about the parasitism of this nematode in cowpea. The present study aimed to verify the host reaction of cowpea cultivars to A. besseyi. The experiment was conducted under greenhouse conditions, using as inoculum two A. besseyi populations, obtained from symptomatic soybean and cotton plants collected in naturally infested fields. Cultivars ‘Imponente’, ‘Aracê’, ‘Guariba’, ‘Tumucumaque’, ‘Nova Era’, and ‘Tracuateua’ were inoculated with 500 A. besseyi of each population, separately, into soil and after 30 days from the inoculation nematodes were extracted from shoot systems. Both populations were able to parasitize all the cowpea cultivars. Independently of the cultivar, cowpea plants exhibited symptoms of leaf deformation similar to those described for soybean, cotton, and common bean and, in addition, severe brooming was observed and the interior of the stems was porous and necrotic. To our knowledge, this is the first report of parasitism by A. besseyi of cowpea in Brazil, under greenhouse conditions, increasing the list of hosts of this nematode.

Perbandingan Interpretasi Analisis Data Page View dan Click Related Post Pada Website Edukasi Sebagai Implisit Feedback Dengan Hasil Interpretasi Penggunaan Teknologi EyeTracking

2021 ◽  
Vol 3 (2) ◽  
pp. 66-72
Author(s):  
Riad Taufik Lazwardi ◽  
Khoirul Umam
Keyword(s):  
Decision Process ◽  
Recommendation System ◽  
User Behavior ◽  
Implicit Feedback ◽  
Decision Making Process ◽  
Learning Material ◽  
Relative Preferences ◽  
Insight Into ◽  
Explicit Feedback ◽  
Data Page

The analysis used in this study uses the help of Google Analytics to understand how the user's behavior on the Calculus learning material educational website page. Are users interested in recommendation articles? The answer to this question provides insight into the user's decision process and suggests how far a click is the result of an informed decision. Based on these results, it is hoped that a strategy to generate feedback from clicks should emerge. To evaluate the extent to which feedback shows relevance, versus implicit feedback to explicit feedback collected manually. The study presented in this study differs in at least two ways from previous work assessing the reliability of implicit feedback. First, this study aims to provide detailed insight into the user decision-making process through the use of a recommendation system with an implicit feedback feature. Second, evaluate the relative preferences that come from user behavior (user behavior). This differs from previous studies which primarily assessed absolute feedback. 

scholarly journals A Short Note on Discrimination and Favoritism in the Labor Market

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Nicolas Salamanca ◽  
Jan Feld
Keyword(s):  
Labor Market ◽  
Wage Differentials ◽  
Short Note ◽  
Market Forces ◽  
Long Run ◽  
Short Run ◽  
Relative Preferences ◽  
Long Run Equilibrium

AbstractWe extend Becker’s model of discrimination by allowing firms to have discriminatory and favoring preferences simultaneously. We draw the two-preference parallel for the marginal firm, illustrate the implications for wage differentials, and consider the implied long-run equilibrium. In the short-run, wage differentials depend on relative preferences. However, in the long-run, market forces drive out discriminatory but not favoring firms.

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