scholarly journals Komponen epidemi penyakit busuk akar dan pangkal batang tebu di Sumatera Selatan

2020 ◽  
Vol 16 (2) ◽  
pp. 49-60
Author(s):  
Tri Maryono ◽  
Ani Widiastuti ◽  
Rudi Hari Murti ◽  
Achmadi Priyatmojo
Keyword(s):  
Disease Progression ◽  
Infection Rate ◽  
Disease Incidence ◽  
Infected Plant ◽  
Stem Rot ◽  
Weather Data ◽  
Develop Model ◽  
Total N ◽  
Basal Stem Rot ◽  
Rot Disease

Epidemic Components of Sugarcane Root and Basal Stem Rot In South Sumatra Root and basal stem rot disease is one of new disease that currently was became a emerging problem on sugarcane plantations in Lampung and South Sumatra. The research was aimed to study the model of disease progression, AUDPC, infection rate (r), and the influence of weather and soil condition (physical and chemical properties of soil) on the development of sugarcane root and basal stem rot disease. The research was conducted on sugar cane plantation in South Sumatra. The disease incidence in three varieties was observed weekly in the field which had infected plant in previous year.. The data were analyzed to develop model of the disease progression, AUDPC, and the rate of root and basal stem rot disease. Weekly weather data was acquired from weather station of Sultan Mahmud Badaruddin Airport, Palembang. Soil sample was taken from three disease category i.e moderate (disease incidence 25,1% - 50%), severe (disease incidence 50,1% - 75%), and healthy (no disease). The results showed that the disease develops following monomolecular and logistic models. The AUPDC and infection rate (r) in the monomolecular model were lower than in the logistic model. The direct effect coefficient of rainfall and relative humidity (RH) on the disease were positive (1.27 and 0.46 respectively), contrary the temperature and duration of irradiation which had a negative coefficient (-0.33 and -0.45 respectively). Meanwhile, K availability and permeability give a positive effect on the disease, while the total N and Fe availability give a negative effect on the disease.

scholarly journals EFFECT OF MICRONUTRIENTS-ENRICHED FERTILIZERS ON BASAL STEM ROT DISEASE INCIDENCE AND SEVERITY ON OIL PALM (ELAEIS GUINEENSIS JACQ.) SEEDLINGS

2014 ◽  
Vol 11 (10) ◽  
pp. 1841-1859 ◽  
Author(s):  
Fabien Fonguimgo Tengoua ◽  
Mohamed M. Hanafi ◽  
A. S. Idris ◽  
Kadir Jugah ◽  
Jamaludin Nurul Mayziatul Azwa ◽  
...  
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Disease Incidence ◽  
Stem Rot ◽  
Basal Stem Rot ◽  
Rot Disease

scholarly journals Advances in the Interpretation of Tomographic Images as an Early Detection Method of Oil Palm Affected by Basal Stem Rot in Colombia

Plant Disease ◽  
2016 ◽  
Vol 100 (8) ◽  
pp. 1559-1563 ◽  
Author(s):  
M. Arango ◽  
G. Martínez ◽  
G. Torres
Keyword(s):  
Early Detection ◽  
Electrical Impedance Tomography ◽  
Oil Palm ◽  
Electrical Impedance ◽  
Disease Incidence ◽  
Stem Rot ◽  
Internal Damage ◽  
Impedance Tomography ◽  
Basal Stem Rot ◽  
Palm Trees

Basal stem rot, one of the most important diseases of oil palm in Southeast Asia, has also been identified in Colombia. The increase in disease incidence in the last decade has attracted the attention of producers and researchers. In the search for a procedure that allows for the early identification of diseased palm, Cenipalma evaluated the use of electrical impedance tomography to identify the different stages of development of basal stem rot. The tomograms were compared with transversal sections of healthy and diseased oil palm trees. Following Cenipalma’s preliminary studies on early diagnosis of basal stem rot with tomography, the present study improved upon the technique by analyzing the tomograms of 209 diseased palm trees (confirmed by symptomatology), 346 asymptomatic palm trees, and 132 healthy palm trees. The minimum and maximum electric impedance values as well as the ratio between these values was recorded. The range of 1 to 95 Ω was used to represent the internal damage. The ratios averaged 5.1 for diseased, 1.9 for asymptomatic, and 1.5 for healthy palm trees. With the range and the ratio criteria established, it was possible to identify the disease in 100% of asymptomatic sampled palm trees. This study demonstrated that electrical impedance tomography is a powerful tool for early detection of basal stem rot, which can be used to establish an early disease management program.

Incidence and characterization of pigeonpea stem rot disease caused by Sclerotinia sclerotiorum (lib.) de bary in North Eastern Plain Zone of India

2016 ◽  
Author(s):  
Ashish Kumar Gupta ◽  
Ravish Choudhary ◽  
Bishnu Maya Bashyal ◽  
Ishwar Singh Solanki
Keyword(s):  
Disease Incidence ◽  
Stem Rot ◽  
Sclerotinia Rot ◽  
Formation Stage ◽  
North Eastern ◽  
Flowering Initiation ◽  
White Mycelium ◽  
Maximum Temperatures ◽  
Rot Disease

The incidence of Sclerotinia rot disease was recorded on various pigeonpea cultivars from flowering initiation to pod formation stage during the years 2012-13 and 2013-14. Critical symptoms of the disease were observed as formation of cottony white mycelium along with number of sclerotia on infected tissues. The pathogen was characterized on the basis of morphological and pathological traits. The cool wet winter with average minimum and maximum temperatures (9.2 and 21.0 ºC) and more than 93% relative humidity play an important role for stem rot disease development and spread in pigeonpea crop. The pigeonpea cultivar, ‘ICPL-151’ showed maximum disease incidence, twig infection and yield losses up to 73.35%, 23.58% and 15.70%, respectively, while ‘Kudrat’ and ‘MAL-13’ cultivars were found completely resistant to the disease.

Stem rot disease incidence on faba beans in an artificially infested field

2007 ◽  
Vol 114 (3) ◽  
pp. 120-125
Author(s):  
A. S. Lithourgidis ◽  
D. G. Roupakias ◽  
K. Tzavella-Klonari
Keyword(s):  
Disease Incidence ◽  
Stem Rot ◽  
Infested Field ◽  
Faba Beans ◽  
Rot Disease

Identification of Ganoderma, the causal agent of basal stem rot disease in oil palm using a molecular method

2005 ◽  
Vol 159 (1) ◽  
pp. 159-170 ◽  
Author(s):  
C. Utomo ◽  
S. Werner ◽  
F. Niepold ◽  
H.B. Deising
Keyword(s):  
Oil Palm ◽  
Causal Agent ◽  
Stem Rot ◽  
Molecular Method ◽  
Basal Stem Rot ◽  
Rot Disease
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