Effects of salinity and flooding on seedlings of cabbage palm (Sabal palmetto)

Oecologia ◽  
1996 ◽  
Vol 105 (4) ◽  
pp. 428-434 ◽  
Author(s):  
L. Perry ◽  
K. Williams
Keyword(s):  



Biosensors ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 188
Author(s):  
Martin J. Oates ◽  
Nawaf Abu-Khalaf ◽  
Carlos Molina-Cabrera ◽  
Antonio Ruiz-Canales ◽  
Jose Ramos ◽  
...  

Lethal Bronzing Disease (LB) is a disease of palms caused by the 16SrIV-D phytoplasma. A low-cost electronic nose (eNose) prototype was trialed for its detection. It includes an array of eight Taguchi-type (MQ) sensors (MQ135, MQ2, MQ3, MQ4, MQ5, MQ9, MQ7, and MQ8) controlled by an Arduino NANO® microcontroller, using heater voltages that vary sinusoidally over a 2.5 min cycle. Samples of uninfected, early symptomatic, moderate symptomatic, and late symptomatic infected palm leaves of the cabbage palm were processed and analyzed. MQ sensor responses were subjected to a 256 element discrete Fourier transform (DFT), and harmonic component amplitudes were reviewed by principal component analysis (PCA). The experiment was repeated three times, each showing clear evidence of differences in sensor responses between the samples of uninfected leaves and those in the early stages of infection. Within each experiment, four groups of responses were identified, demonstrating the ability of the unit to repeatedly distinguish healthy leaves from diseased ones; however, detection of the severity of infection has not been demonstrated. By selecting appropriate coefficients (here demonstrated with plots of MQ5 Cos1 vs. MQ8 Sin3), it should be possible to build a ruleset classifier to identify healthy and unhealthy samples.





2009 ◽  
Vol 19 (4) ◽  
pp. 717-718 ◽  
Author(s):  
Monica L. Elliott

Since the mid-1990s, several new pathogens and diseases have emerged on palms (Arecaceae) growing in Florida. These include two formae speciales of Fusarium oxysporum, with f. sp. canariensis causing fusarium wilt of canary island date palm (Phoenix canariensis) and a new forma specialis causing Fusarium wilt of queen palm (Syagrus romanzoffiana) and mexican fan palm (Washingtonia robusta). The texas phoenix palm decline phytoplasma (‘Candidatus Phytoplasma palmae’ subgroup 16SrIV-D), which causes a lethal yellowing-type disease, has been detected in date palms (Phoenix spp.), queen palm, and cabbage palm (Sabal palmetto). New rachis (petiole) blight pathogens include Cocoicola californica on mexican fan palm and Serenomyces species on several palm species.



1996 ◽  
Vol 83 (12) ◽  
pp. 1566-1570 ◽  
Author(s):  
Kelly McPherson ◽  
Kimberlyn Williams
Keyword(s):  


EDIS ◽  
2013 ◽  
Vol 2013 (6) ◽  
Author(s):  
Timothy K. Broschat

The sabal palm, or cabbage palm, is native to Florida and coastal regions of North and South Carolina and Georgia and is the state tree of both South Carolina and Florida. The name “cabbage palm” comes from its edible immature leaves, or “heart,” which has a cabbage-like flavor. This 5-page fact sheet was written by T. K. Broschat, and published by the UF Department of Environmental Horticulture, July 2013. http://edis.ifas.ufl.edu/st575



Plant Disease ◽  
2019 ◽  
Vol 103 (10) ◽  
pp. 2512-2519 ◽  
Author(s):  
Brian W. Bahder ◽  
Noemi Soto ◽  
Ericka E. Helmick ◽  
Kishore K. Dey ◽  
Lidia Komondy ◽  
...  

The 16SrIV-D phytoplasma was first identified in Florida in 2006. Since its discovery, it has spread throughout most of the state. It is most prevalent in the central part of Florida, from Hillsborough County on the west coast to St. Lucie County on the east coast. The 16SrIV-D phytoplasma is the causal agent of lethal bronzing disease (LBD), which is also known as Texas Phoenix palm decline (TPPD). It affects a variety of common and economically important ornamental palm species as well as the native and ecologically important species, Sabal palmetto. It has spread into the southern portions of Florida, where the palm species diversity is higher. The aims of this survey were to document the spread of disease in terms of geographic and host range one decade after its introduction into Florida, and to assess the risk that LBD poses to the nursery and landscaping industries. The survey included samples received from stakeholders throughout the state, covering 18 counties, as well as a systematic sampling of palms at the Fort Lauderdale Research and Education Center (FLREC), where the disease is spreading actively. The findings of this survey resulted in the detection of LBD in eight new counties, including Collier, Hernando, Jefferson, Martin, Miami-Dade, Monroe, Seminole, and St. Johns, and the expansion of LBD into four new host species, Cocos nucifera, Livistona chinensis, Butia capitata, and Carpentaria acuminata. These findings are crucial for stakeholders because they highlight new hosts of 16SrIV-D phytoplasma and the geographic expansion of the disease, indicating that vigilance is needed when surveying declining palms.





1955 ◽  
Vol 58 (3) ◽  
pp. 237
Author(s):  
Rudolf M. Schuster ◽  
Lewis E. Anderson
Keyword(s):  


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