Early Season Indicators of Postbloom Fruit Drop of Citrus and the Relationship of Disease Incidence and Fruit Production

Plant Disease ◽  
1995 ◽  
Vol 79 (10) ◽  
pp. 1017 ◽  
Author(s):  
L. W. Timmer
Keyword(s):  
Disease Incidence ◽  
Fruit Production ◽  
Early Season ◽  
Fruit Drop ◽  
Relationship Of ◽  
The Relationship

scholarly journals HUBUNGAN SANITASI RUMAH DENGAN KEJADIAN PENYAKIT TUBERKULOSIS (TB) DI KECAMATAN KUTA

2017 ◽  
Vol 11 (1) ◽  
pp. 55
Author(s):  
I Made Mudana ◽  
Nyoman Adiputra ◽  
I.B.G. Pujaastawa
Keyword(s):  
Disease Incidence ◽  
Control Group ◽  
Case Group ◽  
Residential Density ◽  
Independent Variables ◽  
Regression Test ◽  
House Floor ◽  
Relationship Of ◽  
The Relationship ◽  
Logistic Regression Test

RELATIONSHIP HOUSING SANITATION WITH TUBERCULOSIS DISEASES (TB) INCIDENCE IN KUTA DISTRICTOne of the endemic infectious diseases occured in the community is tuberculosis (TB). The World Health Organization (WHO) estimated about one third of the world's population has been infected by the bacteria mycobacterium tuberculosis. Badung regency as one of the districts in the province of Bali also having cases of tuberculosis. From the report Badung Health Agency in 2015 was recorded 275 TB patients. From 6 districts in Badung district, subdistrict of Kuta occupy the highest number of cases recorded 100 patients. tuberculosis is closely related to homes sanitation that do not meet health requirements. The purpose of this study was to determine the relationship of home sanitation with disease incidence of tuberculosis in the district of Kuta. Based on the type of research is observational analytic, design research is a case control studies linking ie risk factors. (Home sanitation) with TB disease events, by comparing the case group and the control group. The population in this study are patients with TB BTA (+) were treated working area Puskesmas Kuta I and Puskesmas Kuta II sanitation as well as his home. The number of samples in this study was 60 consisting of the case group and the control group. How sampling is the total population of TB patients in the last 3 months of 2015 as well as sanitary home. Data collected from interviews, observations and measurements and then analyzed using chi square and followed by multiple logistic regression test. From the statistic test bivariate home sanitation  with tuberculosis disease incidence 6 variables showed that: (1) lighting p = 0,00 (p< 0,05) OR = 21, (2) humidity p = 0,00 (p< 0,05) OR = 21,36 , (3) ventilation p = 0,00 (p< 0,05)OR = 11, (4) the walls of the house p = 0,00 (p< 0,05) OR = 8,64, (5) density residential home p = 0,00 (p<0,05) OR = 16,43 and (6) house floor p = 0,22 (p>0,05) OR = 2,143. To determine the relationship of all independent variables simultaneously multivariate analysis with multiple logistic regression test. Based on the results obtained that there are three independent variables significantly related (p<0,05) with the dependent variable is the humidity (OR = 19,158, 95% CI 3,171 –115,751), ventilation (OR = 6,408, 95% CI = 1,199 to 34,236), residential density (OR = 13,342, 95% CI = 2,261 – 78,733). Probability of people who occupy the house with sanitation (Humidity, Ventilation and Residential density) in the district of Kuta to contract tuberculosis (TB) is 97,08%. Based on these results, we can conclude that from the test bivariate (6 variables) are: lighting, humidity, ventilation, walls of houses, residential density and house floor associated with the incidence of tuberculosis in the district of Kuta. While the advice may be given to: (1). people who live in the district of Kuta in order to build or occupy a dwelling house to take into account the standard of sanitation and healthy home. (2). Government / agencies in order to provide guidance to the public in order to build houses of spatial attention and care homes that meet health requirements so that people who lived in the house to feel safe, comfortable, and avoid the disease especially those stemming from poor sanitation home.

scholarly journals Evaluasi Karakter Morfologi Untuk Perbaikan Genetik Tanaman Pinang ( Areca Cathecu L.) di Padang Pariaman [Evaluation Of Morphological Characters For Arecanut (Areca Cathecu L.) Genetic Improvment In Padang Pariaman]

Buletin Palma ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 15
Author(s):  
NFN Miftahorrachman ◽  
Firman Mantau ◽  
Dina Hervina
Keyword(s):  
Path Analysis ◽  
Genetic Improvement ◽  
Crop Production ◽  
Morphological Characters ◽  
Fruit Production ◽  
Kernel Weight ◽  
Areca Nut ◽  
Selection For ◽  
Relationship Of ◽  
The Relationship

<h4> </h4><p>Evaluation of morphological characters that directly affect the yield is the first step in genetic improvement of areca nut requiring knowledge of the relationship of morphological characters especially production. Morphological characters that are affected directly to yield will be utilized as a basis for selection to increase crop production. The aim of this research is to know morphological characters that directly influence the number of fruits per bunchas the basis of selection for plant improvement. The research was conducted in Korong Koto Padang and Korong Toboh, Nagari Sikucua, V Koto Kampung Dalam District, Padang Pariaman District, West Sumatera Province in December 2017. The result of path analysis indicated that character of girth (r = 0,4190), number of bunches (r = 0,4488), equatorial length of fruit (r = 0,8420), kernel weight (r = 0,5451), equatorial length of kernel (r = 0,6785), and polar length of kernel (r = 0,8443) has a direct effect on fruit production of Local arecanut. For Wangi arecanut only obtained one character that is equatorial length of fruit (r = 0.4984) that directly affect fruit production. The variety of appearance of Local areca nut characters leads to greater selection opportunities compared to Wangi arecanut.The research showed that for Local areca nut, the character of girth, number of bunches, equatorial length of whole fruit, kernel weight, equatorial length of kernel, and polar length of kernel can be used as the selection for the production, while for Wangi arecanut only characters of equatorial length of fruit can be used as the basis of selection.</p><p><strong>ABSTRAK</strong></p><p>Perbaikan genetik Pinang membutuhkan pengetahuan tentang hubungan karakter morfologi terutama dengan produksi. Penelitian bertujuan untuk mencari karakter-karakter morfologi yang berpengaruh secara langsung terhadap jumlah buah per tandan untuk dijadikan dasar seleksi bagi perbaikan tanaman. Penelitian dilakukan di Korong Koto Padang dan Korong Toboh, Nagari Sikucua, Kecamatan V Koto Kampung Dalam, Kabupaten Padang Pariaman, Provinsi Sumatera Barat  pada bulan Desember Tahun 2017. Analisa sidik lintas antara sebelas  karakter morfologi dan komponen buah dengan jumlah buah menggunakan rumus dari Singh dan Chaudary. Hasil analisis sidik lintas diperoleh karakter Lingkar Batang (r = 0.4190) , Jumlah Tandan (r = 0.4488) , Panjang Equatorial Buah Utuh (r = 0.8420), Berat Kernel (r = 0.5451) ,  Panjang Equatorial Kernel (r = 0.6785), dan Panjang Polar Kernel (r = 0.8443) berpengaruh langsung terhadap produksi buah untuk pinang local. Pada Pinang Wangi hanya diperoleh satu karakter yaitu Panjang Equatorial Buah (r = 0.4984) yang berpengaruh langsung terhadap produksi buah. Manfaat hasil penelitian ini adalah karakter-karakter Lingkar Batang, Jumlah Tandan, Panjang Equatorial Buah Utuh, Berat kernel, Panjang Equatorial Kernel, dan Panjang Polar Kernel dapat dijadikan dasar seleksi untuk perbaikan produksi Pinang Lokal, sementara untuk Pinang Wangi hanya karakter Panjang Equatorial Buah Utuh yang dapat dijadikan dasar seleksi. </p><p> </p><p> </p>

scholarly journals Peach brown rot control and the relationship of latent infection with postharvest disease

Revista CERES ◽  
2018 ◽  
Vol 65 (6) ◽  
pp. 517-526
Author(s):  
Elizandra Pivotto Pavanello ◽  
Magno Roberto Pasquetti Berghett ◽  
Erani Eliseu Schultz ◽  
Fabio Rodrigo Thewes ◽  
Suele Fernanda Prediger Schmidt ◽  
...  
Keyword(s):  
Latent Infection ◽  
Disease Incidence ◽  
Brown Rot ◽  
Postharvest Disease ◽  
Latent Infections ◽  
Active Ingredients ◽  
Important Approach ◽  
Relationship Of ◽  
The Relationship

ABSTRACT The peach brown rot, caused by Monilinia fructicola, is the main disease of the crop, causing significant losses during preharvest and postharvest. This study aimed to evaluate the performance of preharvest fungicide application on brown rot control and verify the role of latent infection and external contamination in postharvest disease. An experiment was carried out in the years 2014 and 2015 in order to evaluate the performance of six active ingredients (captan, iprodione, iminoctadine, tebuconazole, difenoconazole and azoxystrobin) during preharvest on brown rot control and the effect on latent infection. A second experiment was carried out to monitor the latent infection during growth and ripening of the fruit and in order to correlate it with the postharvest disease incidence. The data were submitted to analysis of variance (Anova) and the means were grouped by the Scott-Knott test (p < 0.05), using statistical software Sisvar. The active ingredients iprodione, tebuconazole and difenoconazole were the most efficient in controlling brown rot on the field, while iminoctadine has higher efficiency during postharvest control, acting on latent infections. The incidence of latent infections during fruit growth and ripening has a positive correlation with brown rot incidence at postharvest. The highest disease incidence after storage is due to the latent infections manifestation. Effective chemical control in the field, throughout the growing and ripening of fruit, is an important approach to postharvest brown rot control, even after cold storage and during shelf life at 20 °C.

scholarly journals Level of inoculum suitable for studies on the relationship of coffee seedlings and Rhizoctonia solani or Myrothecium roridum

1969 ◽  
Vol 83 (3-4) ◽  
pp. 181-188
Author(s):  
Wanda I. Mercado ◽  
Rocío del P. Rodríguez
Keyword(s):  
Rhizoctonia Solani ◽  
Disease Incidence ◽  
Dry Weight ◽  
Seedling Mortality ◽  
Inoculum Level ◽  
Inoculum Concentration ◽  
Myrothecium Roridum ◽  
Relationship Of ◽  
The Relationship ◽  
Coffea Arabica L

Suitable levels of inoculum of Rhizoctonia solani and Myrothecium roridum for the induction of symptoms in coffee (Coffea arabica L.) seedlings were determined in greenhouse tests based on the percentage of seedling mortality and disease incidence. Best inoculum level for R. solani and M. roridum was 15 and 10%, respectively. Myrothecium roridum was more virulent than R. solani, and thus caused higher mortality of coffee seedlings. For both pathogens, as the inoculum concentration increased, the dry weight of plants decreased. A direct positive relation between incidence of the disease and concentration of the inoculum was detected, it was found that R. solani is more persistent than M. roridum in the inoculated soil.

scholarly journals 019 Effect of Fungicidal Spray Program on Resveratrol Production of Muscadine Grapes (Vitis rotundifolia Michx.)

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 391B-391
Author(s):  
J.B. Magee ◽  
B.J. Smith ◽  
Agnes Rimando
Keyword(s):  
Cardiovascular Disease ◽  
Yield Loss ◽  
Disease Incidence ◽  
Growing Season ◽  
Disease Score ◽  
Vitis Rotundifolia ◽  
Berry Skins ◽  
Relationship Of ◽  
The Relationship ◽  
Mean Concentration

Control of muscadine diseases is necessary to minimize yield loss and is especially important for highest quality if the berries are to be marketed fresh. Throughout the 1998 growing season, vines of five muscadine cultivars (`Noble', `Summit', `Cowart', `Higgins', and `Carlos') were treated under a systematic disease control spray program; four fungicides registered for use on grapes were applied sequentially at 10- to 20-day intervals from early bloom until just before harvest. Control plants received no fungicide. The objectives of the study were to determine the effects of the spray schedule on foliage and berry diseases and to study the relationship between disease incidence and resveratrol content of the berries. Resveratrol is a phytoalexin and has been favorably implicated in cardiovascular disease and certain cancer processes. Foliar diseases were rated visually twice during the season. Berry disease ratings were made at harvest. All fungal foliage and berry diseases were significantly reduced by the fungicide treatments. Resveratrol concentrations were determined separately on berry skins, seed and pulp/juice by GC/MS. Overall, resveratrol levels in berry skins from unsprayed vines were much higher than those of sprayed vines. Concentrations varied by cultivar and within cultivar by treatment. The relationship of skin concentration and total disease score or scores of specific diseases has not been established. Seed resveratrol concentrations differed by cultivar but were not affected by the fungicide treatments. Mean concentration of seed was lower than that of skins. Accumulation of resveratrol in juice/pulp was much lower than in skins and seeds.

scholarly journals The Relationship of Regular Exercise and Diet with Degenerative Diseases Among the Residents of Housing Kanjuruhan Asri, Malang City

2021 ◽  
Author(s):  
Galih Sapto Adi ◽  
Rias Gesang Kinanti ◽  
Andiana Olivia
Keyword(s):  
Correlation Coefficient ◽  
Disease Incidence ◽  
Degenerative Disease ◽  
Coefficient Of Determination ◽  
Survey Method ◽  
Degenerative Diseases ◽  
Multiple Correlation ◽  
Relationship Of ◽  
The Relationship ◽  
Sampling Survey

This study aims to find out both partially and simultaneously the relationship of Exercise Regularity (X1 ) and Diet (X2 ) with the Incidence of Degenerative Diseases (Y) among the residents of Housing Kanjuruhan Asri, Malang City. The study uses a purposive proportional random sampling survey method. The instrument of the study was a questionnaire that has previously been validated by the Pearson’s Product Moment validity test and Spearman Brown’s reliability test (Split Half). Data were analysed using the Spearman’s Rank and Multiple Correlation techniques. The results showed that Regularity of Exercise (X1 ) had a correlation coefficient of 0.881 and Diet (X2 ) a correlation coefficient of 0.963 with the Degenerative Disease Incidence (Y). Also, Regularity of Exercise (X1 ) and Diet (X2 ) had a simultaneous relationship with degenerative disease incidence (Y) with a correlation coefficient of 0.966. The results of the Coefficient of Determination (R2 ) test of 0.932 explained the contribution of the influence of the variables Exercise Regularity (X1 ) and Diet (X2 ) to the variable Degenerative Disease Incidence (Y) of 93.2%; which is quite high. Therefore, it is concluded that there is a significant relationship both partially and simultaneously between Exercise Regularity (X1 ) and Diet (X2 ), and the Incidence of Degenerative Diseases (Y) among the residents of Housing Kanjuruhan Asri, Malang City. Keywords: regularity sport, diet, degenerative diseases, questionnaire

scholarly journals RELATIONSHIP OF METEOROLOGICAL VARIABLES AND INOCULATION TECHNIQUES CONDUCIVE FOR LOOSE SMUT OF WHEAT DEVLEOPMENT

2017 ◽  
Vol 29 (1) ◽  
pp. 145
Author(s):  
Muhammad Shafiq ◽  
Muhammad A. Khan ◽  
Muhammad Hussain ◽  
Muhammad Sajjad ◽  
Ayaz Farzand ◽  
...  
Keyword(s):  
Disease Incidence ◽  
Disease Development ◽  
Loose Smut ◽  
Average Temperature ◽  
Ustilago Tritici ◽  
Inoculation Techniques ◽  
Integral Role ◽  
Relationship Of ◽  
Moderately Resistant ◽  
The Relationship

Ustilago tritici, a seed borne pathogen, remains dormant in seed embryo and causes loose smut disease. The present study was conducted to evaluate two inoculation methods i.e., dip inoculation and syringe inoculation to find out the better method for efficient and reproducible assessment of disease severity, disease incidence and screening of resistant wheat germplasm. Syringe inoculation was found to be better for the inoculation of heads with higher disease incidence than dip inoculation method. Twenty-seven lines were tested for their resistance against loose smut. Two lines were moderately resistant, nineteen lines susceptible and three lines were highly susceptible. Environmental conditions play an integral role in the development of loose smut disease. The relationship of temperature, humidity and rainfall with loose smut development was studied. An average temperature of 23-27 °C, relative humidity 60-90% and rainfall 0.02-1 mm rainfall were statistically most conducive for disease development. The correlation of environmental factors significantly influenced the disease development.

scholarly journals Inheritance of Resistance to Head Smut Disease in Corn

1990 ◽  
Vol 115 (4) ◽  
pp. 668-672 ◽  
Author(s):  
Akhtar Ali ◽  
James R. Baggett
Keyword(s):  
Sweet Corn ◽  
Disease Incidence ◽  
Ground Level ◽  
Head Smut ◽  
Resistant Parent ◽  
Dent Corn ◽  
Reciprocal Differences ◽  
Additive Inheritance ◽  
Relationship Of ◽  
The Relationship

The inheritance in corn (Zea mays L.) of resistance to head smut disease incited by Sphacelotheca reiliana (Kuhn) Clinton was studied in the field on crosses of resistant dent corn line N6 with two susceptible sweet corn (su1) inbred lines. Disease incidence in the resistant parent (Pr) was 0% to 4%, and 83% to 96% in the susceptible parent (Ps). Predisposition of seedlings by clipping just above ground level increased percent infected in progeny populations by as much as 4-fold, but did not affect disease incidence in the, parents. At the lower disease incidence of unclipped plots, the F1, F2, and BCr means were close to the mean of Pr, suggesting dominance of resistance. At the high disease incidence of clipped plots, the relationship of parent and progeny means “suggested additive inheritance. Epistasis was also generally present with a higher level indicated for unclipped plots. Inheritance was concluded to be quantitative. Reciprocal differences were observed only in backcrosses. In the F2 and BCs populations, plants grown from dent (Su1) seed were lower in disease incidence than plants grown from su1 seed.

Effect of Plowing Date and Certain Crop Rotations on Peanut Productivity1

1975 ◽  
Vol 2 (2) ◽  
pp. 81-83 ◽  
Author(s):  
D. L. Hallock
Keyword(s):  
Cover Crop ◽  
Crop Residue ◽  
Disease Incidence ◽  
Crop Rotations ◽  
Management Systems ◽  
Winter Cover Crop ◽  
Winter Cover ◽  
Relationship Of ◽  
The Relationship ◽  
Summer Crop

Abstract The relationship of certain land management systems to productivity and pod breakdown disease incidence in peanuts (Arachis hypogaea) was studied in Virginia during 1971–74. Main treatments were three dates of moldboard plowing prior to planting peanuts in the rotations. Splitplot treatments were 2-year rotations: (I) peanuts followed by rye (Secale cereale) winter cover crop then corn (Zea mays) followed by rye winter cover crop; (II) peanuts followed by rye winter cover crop then soybeans (Glycine max) followed by no winter cover crop (except weeds); (III) peanuts followed by rye winter cover crop then no summer crop (residue of unharvested rye) nor cover crop planted; (IV) peanuts followed by rye winter cover crop then corn followed by fallow in winter, weeds prevented. Dates of plowing treatments affected peanut productivity most. Gross crop values and yields in plots plowed in December were 7%, and 18-to-20%, respectively, higher than when plots were plowed in March or May. Sound mature kernel contents also were lower for the later plowing dates. Differences among rotation treatment means occurred only when plots were plowed in May. Gross crop values were higher for rotation I than for rotation III and IV. In 1974, gross crop values obtained from plots plowed in March in rotation IV were equivalent to those from plots plowed in December. None of the treatments differentially affected pod breakdown disease significantly. However, the percentage of rotted pods averaged somewhat lower in plots plowed in December.

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