Evaluation of Geranium Cultivars and Biorational Products to Control Botrytis Blight in the Greenhouse

2021 ◽  
Author(s):  
Sunil Shrestha ◽  
Mary Hausbeck
Keyword(s):  
Sustainable Management ◽  
Bacillus Amyloliquefaciens ◽  
Aureobasidium Pullulans ◽  
Disease Assessment ◽  
Management Approach ◽  
Pseudomonas Chlororaphis ◽  
Efficacy Trial ◽  
Streptomyces Lydicus ◽  
Progress Curve ◽  
Important Disease

Botrytis blight caused by the fungus Botrytis cinerea is an important disease of geranium, affecting leaves, stems, and flowers, and decreasing the crop’s marketability. Our objectives were to evaluate (i) susceptibility of geranium cultivars to B. cinerea and (ii) efficacy of biorational products for control of Botrytis blight on geranium. Disease assessment included the number of blighted leaves, foliar lesions, and leaves with B. cinerea sporulation. The area under the disease progress curve (AUDPC) was calculated. Among the ten geranium cultivars evaluated, ‘Pinto Premium Orange’, ‘Horizon Coral Spice’ and ‘Ivy Tornado White’ had significantly less disease than ‘Ringo 2000 Violet’, and ‘Maverick Scarlet Picotee’ for all measured parameters. When eleven treatments were compared in the efficacy trial of biorational products, Botector (Aureobasidium pullulans) and Prestop (Gliocladium catenulatum) effectively controlled the disease according to AUDPC for blighted leaves and leaves with sporulating B. cinerea in both ‘Ringo 2000 Violet’ and ‘Pinto Premium Orange’. Zio (Pseudomonas chlororaphis), Serifel (Bacillus amyloliquefaciens), Serenade Opti (B. subtilis) and LifeGard (B. mycoides) were also effective when combined with the geranium cultivar Pinto Premium Orange, one of the least susceptible cultivars in our study based on AUDPC values for all measured parameters. AUDPC for leaves with sporulating B. cinerea showed that all biorational products included in the study effectively limited B. cinerea except Actinovate (Streptomyces lydicus) in ‘Pinto Premium Orange’ geranium. A sustainable management approach could combine one of the least Botrytis susceptible geranium cultivars identified with biorational controls for effective Botrytis blight control.

Challenges of the Blackwood Basin, Western Australia

2001 ◽  
Vol 43 (9) ◽  
pp. 37-44 ◽  
Author(s):  
S. Ecker ◽  
A. Karafilis ◽  
R. Taylor
Keyword(s):  
Sustainable Management ◽  
Action Planning ◽  
River Management ◽  
Management Approach ◽  
Catchment Management ◽  
Riparian Restoration ◽  
Research Education ◽  
Remnant Vegetation ◽  
High Conservation ◽  
Study Zone

Growing concern about the declining state of the catchment and river led to the formation of the Blackwood Basin Group in 1992. Funded primarily by the Natural Heritage Trust and using the river as the focus, the group aims to provide leadership and support to achieve sustainable management of natural resources in the catchment. Through an Integrated Catchment Management approach, the Blackwood Basin Group has managed a range of projects to improve the community's understanding and management of the Blackwood River and its catchment. A number of research, education, demonstration and on-ground action activities relating to river management have been undertaken in partnership with community and local, state and federal government organisations. Activities include demonstrations and evaluations of riparian restoration, funding riparian restoration activities, protection of high conservation value remnant vegetation, a flood risk study, zone action planning and monitoring the condition of the river and its tributaries.

Use of additives to improve bonding strength of the adhesive prepared from used polymer: Sustainable management approach

2021 ◽  
Author(s):  
Appala Naidu Uttaravalli ◽  
Srikanta Dinda ◽  
Bhaskar Bethi ◽  
BVS Praveen ◽  
Bhanu Radhika Gidla
Keyword(s):  
Bonding Strength ◽  
Sustainable Management ◽  
Management Approach

Genetics of Cercospora Leaf Spot Resistance in Mungbean [Vigna radiata (L.) Wilczek] through Generation Mean Analysis

2021 ◽  
Author(s):  
Priyanka Choudhary ◽  
Ramesh Chand ◽  
Anil Kumar Singh
Keyword(s):  
Latent Period ◽  
Leaf Spot ◽  
Vigna Radiata ◽  
Generation Mean Analysis ◽  
Cercospora Leaf Spot ◽  
Progress Curve ◽  
High Heritability ◽  
Efficient Breeding ◽  
Important Disease ◽  
Selection Of

Background: Cercospora leaf spot (CLS) is a fungal disease of mungbean [Vigna radiata (L.) Wilczek] caused by Cercospora canescens and now emerged as an important biotic stress. A better understanding of the genetics of CLS resistance will help in formulating efficient breeding procedures in mungbean.Methods: The present investigation focused on genetics of CLS resistance through generation mean analysis (six parameter model) in two intra-specific mungbean crosses namely, Kopergaon × HUM12 and Kopergaon × ML1720. Four quantitative disease resistance components, viz., Area under disease progress curve (AUDPC), Incubation period (IP), Latent period (LP) and degree of sporulation (SP) were studied.Result: A high correlation of AUDPC with latent period (r = –0.68 to –0.79, P less than 0.0001) and SP (r = 0.72 to -0.81, P less than 0.0001) advocated that both are main contributor for CLS disease development. High heterosis along with high heritability in terms of AUDPC ( greater than 0.09) indicated the importance of genetic factor(s) in controlling CLS resistance. Generation mean analysis of both the crosses revealed duplicate epistatic interaction and involvement of two genes for CLS resistance in terms of AUDPC. This study supports oligogenic nature of inheritance, advocating AUDPC along with IP, LP and SP as important disease indicator for selection of CLS resistance in mungbean.

Urban Green Spaces for Sustainable Community Development

2019 ◽  
pp. 271-287 ◽  
Author(s):  
José G. Vargas-Hernández ◽  
Karina Pallagst ◽  
Justyna Anna Zdunek-Wielgołaska
Keyword(s):  
Community Development ◽  
Strategic Management ◽  
Sustainable Management ◽  
Point Of View ◽  
Green Spaces ◽  
Future Research ◽  
Management Approach ◽  
Management Innovation ◽  
Urban Green ◽  
Urban Green Spaces

This chapter aims to analyze the strategic management innovation in sustainable management of urban green spaces for neighborhood and community development. The report is intended to review the available theoretical and empirical literature on urban green spaces in the main related topics of community and neighborhood development, sustainable management, and strategic management innovation. The research methods employed are the analytical from a functionalist approach moving later into the critical analysis and finally from a holistic or integrative point of view. Finally, this chapter adopts a provocative and prescriptive strategic management approach of urban green spaces by presenting some research gaps and suggesting future research.

scholarly journals Isolation and Characterization of Wilt-Causing Pathogens of Local Growing Pepper (Capsicum annuum L.) in Gurage Zone, Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Temesgen Oljira ◽  
Sefawdin Berta
Keyword(s):  
Fusarium Oxysporum ◽  
Capsicum Annuum ◽  
Ralstonia Solanacearum ◽  
Disease Assessment ◽  
Management Approach ◽  
Pathogenicity Test ◽  
Biochemical Tests ◽  
Capsicum Annuum L ◽  
Local Cultivar ◽  
Isolation And Characterization

The yield of pepper (Capsicum annuum L.) is extremely threatened by different diseases in Ethiopia. The objective of the study was isolation of wilt-causing pathogens and susceptibility test of local growing pepper. Eighteen pepper farming fields were selected for disease assessment study. The samples of Mareko Fana, Dubi, and Mitmita local cultivar pepper’s pods, seeds, leaves, stems, and roots were collected, surface sterilized, and cultured on potato dextrose agar (PDA). Selective peptone pentachloronitrobenzene (PCNB) agar medium was used for fungus. Similarly, for bacteria isolation, nutrient agar (NA) was used. Morphological and biochemical tests revealed eleven fungal isolates of Fusarium oxysporum f. sp. that were isolated. The pathogenicity test confirmed nine of them were virulent to Mareko Fana, Dubi, and Mitmita local pepper. It is confirmed that Fusarium oxysporum f. sp. is the pathogen Fusarium oxysporum f. sp. capsici. Besides, Ralstonia solanacearum was identified as a bacterium pathogen causing complex pepper wilt disease. The highest mean PDI was registered in Remuga Keble (93.0%) and the lowest in Buyi Keble (58.3%). Similarly, the highest mean PSI was recorded in Buyi Keble (87.0%) and the lowest PSI (54.5%) was registered in Tawlla Keble. Among 60 seeds, Mareko local pepper inoculated by F. oxysporum f. sp. and R. solanacearum shows the highest susceptibility of 55 (91.0%) and 30 (50.0%), respectively. However, Mitmita local pepper was registered as the lowest susceptibility to both F. oxysporum f. sp. and R. solanacearum of 28.3% and 30.0%, respectively. Based on the finding, it can be concluded that pepper wilt was caused by a complex of fungus Fusarium oxysporum f. sp. capsici and bacteria Ralstonia solanacearum sp. in the study area. So, it is recommended that an integrated disease management approach should be implemented to manage the complex diseases of the site.

Slow rusting and tolerance to rusts in wheat I. The progress and effects of epidemics of Puccinia graminis tritici in selected wheat cultivars

1979 ◽  
Vol 30 (3) ◽  
pp. 403 ◽  
Author(s):  
RG Rees ◽  
JP Thompson ◽  
RJ Mayer
Keyword(s):  
Infection Rate ◽  
Pattern Analysis ◽  
Grain Filling ◽  
Disease Assessment ◽  
Tolerance Index ◽  
Puccinia Graminis ◽  
Wheat Cultivars ◽  
Vertical Resistance ◽  
Slow Rusting ◽  
Progress Curve

The effectiveness of vertical resistance to rusts in wheat as generally employed is short-lived and a more durable form of resistance is required. To examine slow rusting and tolerance, the progress and effects of epidemics of stem rust (Puccinia graminis Pers, f. sp. tritici Erikss. & Henn.) in 45 wheat cultivars have been followed during two seasons. The epidemics in each cultivar have been compared by means of the average disease assessment, area below the disease progress curve, apparent infection rate, and intercept of the logit line, and by pattern analysis. Of these measures, the infection rate was the least valuable, whilst pattern analysis allowed useful grouping of cuItivars with similar epidemic patterns. The cultivars were arrayed on a resistance spectrum and ranged from highly resistant to extremely susceptible, those between possessing various levels of slow-rusting ability. Slow rusting was at a comparatively high level in cvv. Hopps, Dural, Lawrence and Celebration. In contrast cv. Mengavi was shown to be a fast ruster. The danger of developing cultivars, such as Mengavi, with a fast-rusting tendency masked by initially effective vertical resistance is discussed. The effects of the epidemics in each cultivar have also been determined to provide a tolerance index. The percentage reduction in grain-filling period, the logit-line intercept value and the delay to 10% disease relative to a susceptible reference cultivar were the main factors associated with the effect of the epidemics on grain yield.

scholarly journals Evaluation of Resistance to Ergot, Caused by Claviceps purpurea, in Kentucky Bluegrass, Based on Incidence and Severity Estimates

Plant Disease ◽  
2003 ◽  
Vol 87 (9) ◽  
pp. 1043-1047 ◽  
Author(s):  
Steve C. Alderman ◽  
Reed E. Barker
Keyword(s):  
Large Scale ◽  
Disease Incidence ◽  
Kentucky Bluegrass ◽  
Disease Assessment ◽  
Flower Initiation ◽  
Claviceps Purpurea ◽  
Mean Values ◽  
Incidence Data ◽  
Maturity Period ◽  
Important Disease

Ergot, caused by Claviceps purpurea, is an important disease of Kentucky bluegrass grown for seed. Resistance is a preferred means of disease control, although approaches to evaluating ergot resistance in Kentucky bluegrass are not well established. A large scale disease assessment trial was established to compare within-year and year-to-year variability among measures of ergot incidence or severity in Kentucky bluegrass and to determine the most efficient approaches for cultivar evaluation. The susceptibility of 104 Kentucky bluegrass cultivars (78 commercial and 26 experimental) to ergot was assessed, based on percentage of panicles with sclerotia (incidence), sclerotia per panicle (severity), percentage of seeds replaced by sclerotia, or percentage of sclerotia among seed by weight. Cultivar ranking for susceptibility within years was similar for all methods of ergot assessment. Yearly mean incidence of ergot among cultivars ranged from 1.0 to 97.5% for susceptible cv. HV102 to 0.0 to 2.5% for resistant cv. Huntsville, with remaining cultivars distributed between the extremes. Yearly mean values of ergot incidence and severity differed among years. Much of this variability was due to days with rain during the period from flower initiation to maturity (period of susceptibility). Disease incidence was correlated (P ≤ 0.05) with days with rain in 22 of the cultivars. Duration of flowering was correlated (P ≤ 0.05) with ergot incidence in 11 cultivars. Results from this study suggest that variability in host and environment would likely offset any gain in precision of severity data. In large trials in particular, collection of incidence data (percentage of panicles with ergot) would provide the most timely and efficient means for ergot assessment.

scholarly journals Usages Et Vulnerabilite De Pterocarpus Santalinoides L'her. Ex De (Papillionoidae), Une Plante Utilisee Dans Le Traitement Des Gastro-Enterites Dans Le Sud Du Benin

2016 ◽  
Vol 12 (6) ◽  
pp. 218
Author(s):  
Ayena A C. ◽  
Agassounon Djikpo Tchibozo M. ◽  
Assogbadjo A. E. ◽  
Adoukonou-Sagbadja H. ◽  
Mensah G. A. ◽  
...  
Keyword(s):  
Sustainable Management ◽  
Well Being ◽  
Vulnerability Index ◽  
Management Approach ◽  
Plant Resources ◽  
Vegetative Organs ◽  
Interview Guide ◽  
Therapeutic Needs ◽  
Galenic Form ◽  
Pterocarpus Santalinoides

In West Africa, rural populations depend heavily on woody plant resources to satisfy particular nutritional and therapeutic needs. This study was conducted in South of Benin to identify local knowledge about Pterocarpus santalinoides, and its vulnerability level. Investigations were made using an interview guide followed by observations. 180 professionals were interviewed. It appears from the study that the "African teak" is known as 10 local designations. The species is sought in many areas of use (African medicine, food medicine, carpentry, art, energy and well-being). On medicinal plan, leaves, bark of the trunk and roots are solicited alone or in association with others to treat especially the symptoms related to gastroenteric (diarrhoea, dysentery, vomiting and abdominal cramps). Decoct is the main galenic form adopted for the treatment of these conditions. Considering all the sectors, all its vegetative organs are used. Degree of uses of various organs of this plant is the main causes of its vulnerability. Vulnerability index (Iv) is equal to 2.4. The species is thus identified as vulnerable. It is urgent for its users to adopt a sustainable management approach, in order to preserve African teak.

scholarly journals Toward An Innovative Strategic Approach For Sustainable Management Of Natural Protected Areas In Italy

2020 ◽  
Vol 13 (3) ◽  
pp. 68-75
Author(s):  
Ahmadreza Shirvani Dastgerdi ◽  
Massimo Sargolini ◽  
Ilenia Pierantoni ◽  
Flavio Stimilli
Keyword(s):  
Protected Areas ◽  
Sustainable Management ◽  
Regional Scale ◽  
Natura 2000 ◽  
Management Approach ◽  
Economic Activities ◽  
Natural Protected Areas ◽  
Conservation Policies ◽  
Strategic Approach ◽  
Umbria Region

As the world’s largest coordinated network of protected areas, the Natura 2000 network (N2k) encompasses the most valuable and threatened species and habitats in Europe. However, N2k sites have been often criticized due to their rigid management system that focuses only on conservation practice without a strategic vision for linking with the regional plans. This study aims to develop a novel approach for sustainable management of N2k sites in Italy by identifying existing gaps and developing conservation policies. For this purpose, a panorama of the current challenges in the European sites was provided at the first step. Then, the management status of the natural protected sites in Italy was studied by selecting the Umbria Region as the case study. Finally, we develop a strategic approach for boosting the conservation policies and sustainable management of the N2k sites in Italy. The findings highlight that the sustainability of N2k sites requires an inclusive effort in the social, economic, and policymaking fields to meet its conservation objectives. Such an effort encompasses a sophisticated management approach that consists of a network of tools for monitoring the state of conservation, land uses, and socio-economic activities at the regional scale. Furthermore, the integration of environmental policies with regional plans is essential for the sustainable management of the N2k sites.

scholarly journals Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shourav Dutta ◽  
MOHAMMED KAMAL HOSSAIN
Keyword(s):  
Sustainable Management ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Shrimp Farming ◽  
Management Approach ◽  
Conservation Practices ◽  
Extensive Literature ◽  
Severe Damage ◽  
Forest Diversity ◽  
Sundarbans Mangrove

Abstract. Dutta S, Hossain MK. 2020. Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach. Asian J For 4: 65-75. The oldest mangrove forest of Indian sub-continent namely Chakaria Sundarbans (CS) is currently in a critical situation. Destructive anthropogenic and natural impacts coupled with shrimp farming and excessive grazing has caused severe damage to this oldest mangrove ecosystem. A study was carried out based on the extensive literature survey and tried to explore the overall situation and conservation practices for CS of Bangladesh. This paper analyzed, reviewed, and identified the impacts of natural and man-made effects on CS mangroves. Finally, we recommended the sustainable management approach (SMA) including policy and participation of the local people for bringing back this potential natural mangrove forest resource of CS along with rich forest diversity.

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