Biochemical and physiological responses of oil palm to bud rot caused by Phytophthora palmivora

Moreno-Chacón, Andrés Leonardo; Camperos-Reyes, Jhonatan Eduardo; Diazgranados, Rodrigo Andrés Ávila; Romero, Hernán Mauricio

doi:10.1016/j.plaphy.2013.05.026

Cited by 12 publications

(7 citation statements)

References 31 publications

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“…bras., Brasília, v.49, n.8, p.604-612, ago. 2014 DOI: 10.1590/S0100-204X2014000800004 interspecific hybrids (E. guineensis x E. oleifera), characterized by reduced height, which increases the period of economic exploitation of the culture, and especially by resistance to oil palm bud rot, the most important disease of the continent (Cunha et al, 2012;Moreno-Chacón et al, 2013;Gomes Junior et al, 2014). However, for effective results in genetic improvement, the knowledge of intraspecific genetic variability is essential.…”

Section: Introductionmentioning

confidence: 99%

Seed biometric parameters in oil palm accessions from a Brazilian germplasm bank

Camillo

Braga

Mattos

et al. 2014

Pesq. agropec. bras.

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-The objective of this work was to evaluate the morphological diversity of oil palm seeds and to cluster the accessions according to their morphological characteristics. Forty-one accessions from the oil palm germplasm bank of Embrapa Amazônia Ocidental were evaluated -18 of Elaeis oleifera and 23 of E. guineensis. The groups were formed based on morphological characteristics, by principal component analysis. In E. oleifera, four groups were formed, tied to their region of origin, but with significant morphological differences between accessions from the same population. For tenera-type E. guineensis seeds, three widely divergent groups were formed, especially as to external parameters, which differentiated them from the other ones. The parameter endocarp thickness stood out in intra-and inter-population differentiation. For dura-type E. guineensis, three groups were formed, with larger seeds and thicker endocarps, which differed from all the other ones. The variability observed for seed characteristics in the analyzed accessions allows the establishment of different groups, to define strategies for genetic improvement.

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Section: Introductionmentioning

confidence: 99%

Seed biometric parameters in oil palm accessions from a Brazilian germplasm bank

Camillo

Braga

Mattos

et al. 2014

Pesq. agropec. bras.

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“…The monitoring of each palm included three stages: (i) Management stage or diagnosis, where the palms were classified according to the degree of severity (degree 1 to degree 5); the severity was assessed based on the lesions found in the youngest leaves of each palm, using the scale developed by Cenipalma [18]. (ii) Monitoring, where the palms intervened with the IDM were followed up on the recovery process, and (iii) decision, where the palms were classified either as healthy to be released or eradicated after not showing signs of recovery after IDM.…”

Section: Discussionmentioning

confidence: 99%

“…Biological studies on P. palmivora describe the infection process, infection times, entry sites, and colonization of bud tissue [15][16][17]. Moreover, the physiological and biochemical responses of oil palm to the pathogen have been recorded [18]. Simultaneously identifying the causal agent, an integrated disease management (IDM) program was developed for BR.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Disease Management of Oil Palms Affected by Bud Rot Results in Shorter Recovery Times

Tupaz-Vera¹,

Ayala-Diaz²,

Rincón³

et al. 2021

Agronomy

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Bud rot is a limiting disease that affects most oil palm crops destroying thousands of hectares in Latin America. Bud rot (BR) is caused by the oomycete Phytophthora palmivora (Butler). Integrated disease management (IDM) technology has been used to control the disease, which slows down the progress of the disease, allowing palm recovery. However, the effect of this technology on the recovery speed of treated palms is not well known. We studied the time taken for palm recovery from BR under the integrated management approach. The study was carried out on 21 oil palm commercial cultivars dura × pisifera (D × P) and O × G hybrids affected by BR in the Colombian oil palm Central Zone. The analysis included different recovery times (RT), the severity degree, time of the year (wet or dry season), number of reinfections, and cultivar. The RT of bud rot-affected palms ranges from 103 to 315 days, with an average of 202.8 days when an IDM is used. RT was lower than that reported in the diseased palms without IDM (540 days). According to the severity degree, the RT lasted 202 days for severity degree 1, 198 days for severity degree 2, and 222 with severity degree 3 and 4. In comparison, there was no significant difference between dry and rainy seasons in RT. Differences between cultivars were found; however, under IDM, all cultivars showed low RT. The IDM has a positive impact in reducing the RT to BR. Low RT has indirect effects minimizing potential yield losses, improving the number of successfully recovered palms, and reducing the risk of disease dissemination.

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“…Some studies have shown that modern cultivars are not well-adapted to recent climate changes (Martre et al, 2017). That finding is why oil palm breeding programs should be a multidisciplinary team effort that involves molecular tools (Rival, 2017), understanding the response of oil palm cultivars to limiting conditions due to abiotic (Rivera et al, 2012;Suresh et al, 2012;Jazayeri, 2015) and biotic factors (Moreno-Chacn and Camperos-Reyes, 2013;Avila et al, 2014;Navia et al, 2014) and conducting socioeconomic and crop feasibility studies either by defined agro-climatic regions (Pirker et al, 2016) or sitespecific cases where oil palm plantations can be established (Rhebergen et al, 2016), estimating limitations in available land (Meijide et al, 2017). In Colombia, there is a wide variety of oil palm genetic materials from different origins that can be used to start the search for sources of tolerance to different stresses.…”

Section: Introductionmentioning

confidence: 99%

Physiological and agronomic behavior of commercial cultivars of oil palm (Elaeis guineensis) and OxG hybrids (Elaeis oleifera x Elaeis guineensis) at rainy and dry seasons

Bayona-Rodríguez¹,

Romero²

2019

Aust J Crop Sci

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Oil palm is the most productive and efficient oilseed crop in the world. Oil palm is planted in various geographical areas, where the frequency of extreme weather events is expected to increase because of climate change. The characterization of the response of oil palm cultivars to climatic conditions will allow identifying sources of tolerance to different types of stress caused by climate change, leading to the determination of the best genotype x environment relationships. The physiological responses, oil quality and yield of 11, six-year-old commercial oil palm cultivars with different origins were evaluated in two periods of contrasting climate conditions (rainy and dry seasons between the years 2008 and 2010). We found that the first impact of a period with water deficit was the reduction on gas exchange of all cultivars. Photosynthesis fell between 25% to 40% and transpiration decreased between 10% and 50%. During the dry season, leaf sugar concentration increased respect to the rainy season between 14% to 114%, and certain cultivars showed up to 27% higher photosynthetic water use efficiency. This variation could be due to the genetics of different cultivars. No significant differences were observed between the seasons in terms of oil quality. In general, changes in oil palm physiology observed in response to water deficit were related to the ability of the palm to adapt and survive periods of drought stress. The cultivars evaluated showed a good response to dry periods, with the IRHO being the most outstanding at each evaluated season .

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Biochemical and physiological responses of oil palm to bud rot caused by Phytophthora palmivora

Cited by 12 publications

References 31 publications

Seed biometric parameters in oil palm accessions from a Brazilian germplasm bank

Seed biometric parameters in oil palm accessions from a Brazilian germplasm bank

An Integrated Disease Management of Oil Palms Affected by Bud Rot Results in Shorter Recovery Times

Physiological and agronomic behavior of commercial cultivars of oil palm (Elaeis guineensis) and OxG hybrids (Elaeis oleifera x Elaeis guineensis) at rainy and dry seasons

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