Source of inoculum of pathogens, the origin of disorders and diseases management in avocado nurseries

Ramírez‐Gil, Joaquín Guillermo; Osorio, Juan Gonzalo Morales

doi:10.1007/s13313-021-00796-y

Cited by 5 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The more important supplies were transformation of the fruit and search for added value from seeds, where a large amount of waste is generated, which may have high potential [62][63][64][65]. Likewise, the size of the bag in the nursery stood out, a sensitive variable with a high influence on the quality of the plant material [66]. Environmental considerations have been highly relevant given the association with the use of resources because of water and carbon footprints [67][68][69].…”

Section: Discussionmentioning

confidence: 99%

Validating Technologies and Evaluating the Technological Level in Avocado Production Systems: A Value Chain Approach

2022

Self Cite

View full text Add to dashboard Cite

In agriculture, technologies support the productivity and competitiveness of production systems in value chains. In the last decade, the Colombian avocado sub-sector has expanded. However, little is known about its technological level (TL). The objectives of this study were (i) to understand the perception of value chain experts in terms of technological supplies and demands, (ii) to evaluate the TL in avocado production systems and (iii) to discover which socioeconomic characteristics impact the TL. The three stages were consultation with experts and parameterization of the TL, evaluation of the TL using multivariate methods and analysis of variables of the production system. The technological supply “By-products from seed” was of great importance, while “Branch girdling” was the least relevant. A total of 161 demands were identified, “Environmental management and sustainability” showing greater relevance. The analysis showed a low correlation between the qualification of experts and the use of technology by producers. The postharvest supplies had the lowest frequency of use. Producers were characterized according to TL: high (34.4%), medium (47.2%) and low (18.4%). A relationship was found between the TL and some variables of the production system. The gap found should be the basis for designing science and technology policies for the avocado sub-sector in Colombia.

show abstract

Section: Discussionmentioning

confidence: 99%

Validating Technologies and Evaluating the Technological Level in Avocado Production Systems: A Value Chain Approach

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Of the 71 studies retrieved from the databases, 35 reported Colletotrichum species in the four countries focused upon in this review. Of these, 21 studies reported species in Colombia [18,[21][22][23][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43], five reported species in Venezuela [44][45][46][47][48], only three reported species in Peru [49][50][51], and six reported species in Ecuador [52][53][54][55][56][57].…”

Section: Geographical Distribution Of Colletotrichum Complexes In Nor...mentioning

confidence: 99%

“…Only one crop was found in both Venezuela and Colombia: soursop (Annona muricata). Several hosts were found in only one country: the Amazonian fruit camu camu (Myrciaria dubia) was found in Peru [50] as well as pea (Pisum sativum) [51], and lupine (Lupinus mutabilis) was found in Ecuador, while oil palm (Elaeis guineensis) [43] macadamia [60], onion [48] and strawberry (Fragaria × ananassa) [44,47] were found in Venezuela, and in Colombia were found cotton (Gossypium hirsutum) [18], grape vine (Vitis vinifera) [38], gulupa fruit (Passiflora edulis) [29], heliconia (Heliconia spp.) [32], mango (Mangifera indica) [21,28], Passiflora (Passiflora spp.…”

Section: Geographical Distribution Of Colletotrichum Complexes In Nor...mentioning

confidence: 99%

“…In fruit plants, attacks by Colletotrichum species have been reported in tree tomato (Solanum betaceum) [21,28,56,65,66], mango (Mangifera indica) [21,28,67], Passiflora (Passiflora edulis) [21,29], strawberry (Fragaria × ananassa) [44,47], blackberry (Rubus glaucus) [23,[30][31][32], plantain (Musa spp.) [36], soursop (Annona muricata) [22,45], avocado (Persea americana) [39,40,43] Tahiti lima (Citrus latifolia) [41,68,69], papaya (Carica papaya) [70], and grape (Vitis vinifera) crops [38].…”

Section: Hosts Diversity and Botanical Familiesmentioning

confidence: 99%

See 1 more Smart Citation

Colletotrichum Species Complexes Associated with Crops in Northern South America: A Review

et al. 2022

View full text Add to dashboard Cite

Colletotrichum genus comprises a high number of plant pathogens causing anthracnose disease in different tropical and non-tropical crops. We aimed to review northern South American studies in the online SCOPUS database to: create a taxonomically updated list of the species complexes found in the region, describe their most important phytopathological characteristics, revise the methods used in the region to control disease, and discuss the role of fungus as a plant endophyte. A total of 19 Colletotrichum species within five complexes—acutatum, boninense, gigasporum, gloeosporioides, and orbiculare—have been reported in northern South America. Few studies have been conducted, particularly in Peru and Ecuador, despite the diversity of Colletotrichum hosts cultivated in the region. Important information can be extracted from our review: species do not appear to show host specificity, although some isolates show host preferences, certain plant species can host several Colletotrichum species, some studies show the importance of using plant extracts to control the disease, but biological control using microorganisms is certainly an open area of research in the region. In northern South America, only a few hosts have been reported to harbor Colletotrichum as endophyte, and the potential of these endophytes as biological control agents has not yet been explored.

show abstract

“…Soil is an important source of inoculum for Cylindrocarpon pathogens [ 23 ] since most species can produce conidia able to spread in soil water and resistance structures, named chlamydospores, that allow them to survive in the soil for long periods [ 24 ]. In addition, infected nursery plant material is another important source of inoculum, as these species could be isolated from rootstock mother plants, rooted rootstocks, grafting material and young plants from nurseries [ 20 , 22 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular and Pathogenic Characterization of Cylindrocarpon-like Anamorphs Causing Root and Basal Rot of Almonds

Capote

Río

Herencia

et al. 2022

Plants

View full text Add to dashboard Cite

Three almond nurseries were prospected in the South of Spain (Sevilla) to evaluate the sanitary status of the nursery plant material. Samples consisted of main roots, secondary roots and six-month-old basal stems ‘GxN-15’, ‘Nemaguard’, ‘Cadaman’, ‘Rootpac-40’ and ‘Rootpac-20’ rootstocks planted in the soil, and twigs of mother plants from ‘Lauranne’, ‘Guara’, ‘Marcona’, ‘Marta’ and ‘Ferragnes’ almond cultivars. Endophytic and potential pathogenic fungi were identified in mother plants and 70 Cylindrocarpon-like anamorph isolates were detected in the root system and basal stems of analyzed rootstocks. Based on partial sequencing of the his3 gene and multilocus phylogenetic analysis of the concatenated ITS, tub2, his3 and tef1-α partial sequences, seven Cylindrocarpon-like anamorph species were identified as Dactylonectria torresensis, D. novozelandica, D. macrodidyma, Ilyonectria liriodendri, Neonectria sp. 1, N. quercicola and Cylindrocladiella variabilis. Pathogenicity was assessed on young healthy detached twigs of ‘Guara’ almond cultivar and one-year-old ‘Lauranne’ potted almonds grafted onto ‘GxN-15’ rootstocks. Among the seven Cylindrocarpon-like anamorph species, I. liriodendri, Neonectria sp. 1 and N. quercicola were the most aggressive. Inoculated detached shoots developed necrotic lesions 15 days after inoculation. Inoculated trees showed sectorized necrosis in the main and secondary roots and the basal stem of the rootstock 5 months after inoculation. The most aggressive species were able to cause necrosis also in the grafted cultivar, and I. liriodendri, and N. quercicola also reduced the root biomass. This is the first report of Cylindrocarpon-like anamorph species causing root and basal rot of almonds.

show abstract

Source of inoculum of pathogens, the origin of disorders and diseases management in avocado nurseries

Cited by 5 publications

References 32 publications

Validating Technologies and Evaluating the Technological Level in Avocado Production Systems: A Value Chain Approach

Validating Technologies and Evaluating the Technological Level in Avocado Production Systems: A Value Chain Approach

Colletotrichum Species Complexes Associated with Crops in Northern South America: A Review

Molecular and Pathogenic Characterization of Cylindrocarpon-like Anamorphs Causing Root and Basal Rot of Almonds

Contact Info

Product

Resources

About