Phytosanitary Aspects of Jatropha Farming in Brazil

Resende, José Carlos Fialho de; Gonçalves, Nívio Poubel; Dias, Mário Sérgio Carvalho; Albuquerque, Carlos Juliano Brant; Morais, Danielle de Lourdes Batista

doi:10.1007/978-1-4614-4806-8_11

Cited by 2 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alternative methods for quantifying the development of epidemics include the AUDPC and nonlinear models such as the Weibull model. Our results confirm the usefulness of the AUDPC in terms of the severity and number of lesions per cm 2 and the Weibull distribution model in terms of determining disease development in different physic nut cultivars because they integrate factors such as host response and pathogen aggressiveness as described by García-López et al [22] in a study on a malformation disease caused by Fusarium sp. in mango.…”

Section: Discussionsupporting

confidence: 87%

“…In addition, the estimated parameters, such as the initial disease amount and disease progress rate, agreed with the disease intensity data. For instance, high mean values were found for both epidemiological components in the lower and middle canopy of the hybrid JAT 001100, perhaps explaining why this material had the highest disease severity and number of lesions per cm 2 . Coincidentally, in our study, the disease progress rate was significantly correlated with the severity and number of lesions per cm 2 in the middle and upper canopy.…”

Section: Discussionmentioning

confidence: 99%

“…Also, the AUDPC for the severity of rust was higher in the middle canopy and in the average of the canopies of the hybrid JAT 001100, and the AUDPC for the number of lesions per cm 2 was higher in the same material and the hybrid JAT 001103 in the average of the canopies, when compared with the rest of the genotypes. In general, hybrids JAT 001100 and JAT 001103 were the physic nut genetic materials most susceptible to the rust caused by P. arturiana considering that the occurrence and severity of rust can vary over time and depend on the source of the inoculum, the environmental conditions, and the genetic base of the host [2,30].…”

Section: Discussionmentioning

confidence: 99%

“…Physic nut (Jatropha curcas L.), a tropical plant native to Mexico and Central America, is notable for its seeds, which contain approximately 36% oil [1]. The agricultural potential of J. curcas in tropical regions is affected by several diseases [2,3], including rust caused by Phakopsora species. This basidiomycete was first identified in Puerto Rico in 1915 as Uredo jatrophicola Arthur [4] and was definitively reclassified as P. arthuriana, with reports in the United States of America [5], Brazil, the West Indies [6], Mexico [7], and Thailand [8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Elucidating the Etiology and Temporal Progress of Rust on Physic Nut Genotypes and Their Relationship with Environmental Conditions in Ecuador

Donoso-Alvarado,

Flores-Anchundia,

Mendoza

et al. 2024

Agronomy

View full text Add to dashboard Cite

Physic nut (Jatropha curcas L.) has emerged as a promising fruit crop in Ecuador, but the recent identification of rust poses a potential threat to its productive development. This study focused on elucidating the morphological aspects of the basidiomycete and assessing rust intensity across different canopy levels of physic nut hybrids and genotypes under field and semi-controlled conditions in Manabí, Ecuador. For the first time, this study confirms that Phakopsora arthuriana should be responsible for rust on physic nut in Ecuador based on the characteristics of the fungal structures. Rust incidence was 100% across all canopy layers, with the lower and middle canopies exhibiting higher severity and lesion numbers than the upper canopy. Using the Weibull nonlinear distribution model, we epidemiologically modeled disease progression, revealing that hybrid JAT 001100 displayed the highest temporal progress, recording 15% severity and an area under the disease progression curve of 3228.9 units. Promising genotypes CP-041 and CP-052 demonstrated lower rust intensity. Environmental parameters, including dew point, temperature, precipitation, and relative humidity, were correlated with rust severity and lesion numbers. In greenhouse assays, hybrid JAT 001165 showed higher severity, whereas JAT 001103 and JAT 001164 had more lesions than other genotypes. In contrast, promising genotypes CP-041 and CP-052 consistently exhibited lower rust intensity in both field and greenhouse environments. This study demonstrated that P. arthuriana could be epidemiologically modeled with the Weibull model, providing crucial insights into the dynamic interplay between rust infection and physic nut hybrids and genotypes under diverse conditions in the Manabí region of Ecuador.

show abstract

Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Elucidating the Etiology and Temporal Progress of Rust on Physic Nut Genotypes and Their Relationship with Environmental Conditions in Ecuador

Donoso-Alvarado,

Flores-Anchundia,

Mendoza

et al. 2024

Agronomy

View full text Add to dashboard Cite

show abstract

“…For further development of such crops, studies are needed on suitable agronomic practices and on the importance of pests. Currently, the only thrips reported as damaging this crop are leaffeeding members of the Panchaetothripinae, including Selenothrips rubrocinctus in Brazil (Resende et al 2012), Retithrips syriacus in India (Anitha & Vareprasad 2012), and Heliothrips haemorrhoidalis, Rhipiphorothrips cruentatus, Selenothrips rubrocinctus and Zaniothrips ricini in Indonesia (Asbani & Sartiami 2011). In contrast, in Chiapas State, Mexico during 2015, the leaves of a Jatropha crop growing in a 5 hectare experimental orchard were found to be seriously distorted (Figs 1-5).…”

Section: Thrips Damaging Jatropha Curcasmentioning

confidence: 99%

Replacement names for two homonyms of Liothrips brevitubus Karny: one from California, the other for a species damaging Jatropha crops in Mexico

Mound

Goldarazena

López-Guillén

et al. 2016

Zootaxa

View full text Add to dashboard Cite

There are nearly 280 species of Liothrips listed from around the world (ThripsWiki 2016), all of them presumably feeding and breeding on the leaves of higher plants, and sometimes inducing or being associated with galls (Mound 1994). Despite this, for most of these species the identity of the plant species on which they are dependent is rarely known, and a particularly high proportion of the species are based on few specimens or even single individuals (cf Table 1). As a result, the identity of many of these named species continues to be in doubt. Modern identification keys are available only to the 23 Liothrips species known from Japan (Okajima 2006), the four European species known from Iran (Minaei & Mound 2014), and 14 species from Illinois (Stannard 1968). In contrast, the keys to 16 species of Liothrips from Brazil (Moulton 1933), to more than 80 species from Indonesia (Priesner 1968), and to 50 species from India (Ananthakrishnan & Sen 1980), are of little more than archival interest, in that they are based on few specimens with little allowance for intraspecific variation. Mound & Marullo (1996) listed over 80 Liothrips species from the Americas, although some of these are now placed in Pseudophilothrips (see Mound et al. 2010). That list included two homonyms of the Indonesian species Liothrips brevitubus Karny, one from Mexico and one from California. The homonym from Mexico is here recognised as applying to a species that in 2015 caused severe damage to a crop of Jatropha curcas in Chiapas. The objectives here are to provide a valid name for this pest, to facilitate its recognition among the 13 species of Liothrips recorded from Mexico (Table I), and also to replace the homonym from California.

show abstract

Phytosanitary Aspects of Jatropha Farming in Brazil

Cited by 2 publications

References 9 publications

Elucidating the Etiology and Temporal Progress of Rust on Physic Nut Genotypes and Their Relationship with Environmental Conditions in Ecuador

Elucidating the Etiology and Temporal Progress of Rust on Physic Nut Genotypes and Their Relationship with Environmental Conditions in Ecuador

Replacement names for two homonyms of Liothrips brevitubus Karny: one from California, the other for a species damaging Jatropha crops in Mexico

Contact Info

Product

Resources

About