scholarly journals EFFECT OF WASHING AND CUTTING ON NO3-N AND K SAP CONCENTRATIONS ON VEGETABLE PETIOLES

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 508C-508
Author(s):  
David Studstill ◽  
Michela Farneselli ◽  
Eric Simonne ◽  
Bob Hochmuth
Keyword(s):  
Nutritional Status ◽  
Control Method ◽  
Average Concentration ◽  
Bell Pepper ◽  
Distilled Water ◽  
Vegetable Crops ◽  
Limited Information ◽  
Simple Method ◽  
Petiole Sap

Petiole sap testing using ion-specific electrodes is a simple method that can be used to guide in-season applications of N and K to vegetable crops. This method requires petiole sampling and sap extraction using a sap press. Because some vegetables are grown with foliar applications of N and/or K and because some crops have large petioles, petioles may need to be washed and/or cut before being pressed. Because limited information is available on the effect of washing/cutting on sap testing results, muskmelon, bell pepper and tomato petioles were used to test if washing/cutting reduced NO3-N and K concentrations and changed the subsequent interpretation of plant nutritional status. Washing for 30, 60, or 120 seconds in distilled water and cutting petioles before or after washing significantly reduced sap concentrations (p = 0.01 and p = 0.04 for NO3-N and K, respectively) in 7 of 12 tests when compared to the control method (petioles cut and not washed). The average concentration reductions between the control and the lowest value among all the washing/cutting treatments were 30% for NO3-N and 19% for K. These losses due to washing/cutting are likely to change the diagnosis of nutritional status from “sufficient” to “less than sufficient” and therefore may suggest the need for unnecessary fertilizer applications.

Experiments on Substrate Selection by Corophium Species: Films and Bacteria on Sand Particles

1964 ◽  
Vol 41 (3) ◽  
pp. 499-511
Author(s):  
P. S. MEADOWS
Keyword(s):  
Ionic Strength ◽  
Sea Water ◽  
Distilled Water ◽  
Substrate Selection ◽  
Corophium Volutator ◽  
Simple Method ◽  
Substrate Preferences ◽  
Solutions Of Electrolytes ◽  
Sand Particles ◽  
Micro Organisms

1. A simple method is described for determining the substrate preferences of Corophium volutator (Pallas) and Corophium arenarium Crawford. 2. If offered a choice of its own substrate with that of the other species each prefers its own. 3. Level of illumination and colour of substrate have little effect on choice. An animal's size and hence its age has little effect on its substrate preferences. 4. C. volutator prefers a substrate previously maintained under anaerobic conditions, C. arenarium vice versa. 5. Treatments which kill, inactivate, or remove micro-organisms render sands unattractive to Corophium. These include boiling, acid-cleaning, drying, and soaking in fixatives or distilled water. Attempts to make these sands attractive again failed. 6. Distilled water, and solutions of the non-electrolytes sucrose and glycerol at the same osmotic pressure as sea water, induce many bacteria to desorb from sand particles; smaller numbers are desorbed in the presence of solutions of electrolytes at the same ionic strength as sea water (NaCl, Na2SO4, KC1, MgSO4, MgCl2, CaCl2). Of all these, only distilled water and solutions of MgCl2 and CaCl2 reduce the attractive properties of sands. Hence the loss of bacteria from the surface of sand grains, though related to the ionic strength and composition of the medium, is not necessarily associated with a substrate becoming unattractive.

scholarly journals Controlling the southern root-knot nematode (Meloidogyne incognita Chitwood) with grafted and resistant pepper varieties

2010 ◽  
Vol 16 (2) ◽  
Author(s):  
Z. Mándoki
Keyword(s):  
Meloidogyne Incognita ◽  
Control Method ◽  
Environmentally Friendly ◽  
Bell Pepper ◽  
N Gene ◽  
Root Knot Nematode ◽  
Resistant Varieties ◽  
Environmentally Safe ◽  
Resistant Rootstock ◽  
Southern Root Knot Nematode

Newly bred resistant bell pepper varieties and those grafted onto resistant rootstock s were tested in soil severely infested with southern root-knot nematode [Meloidogy11e incognita (Kofoid and White) Chitwood] in unheated plastic house and compared to varieties on their own roots, in order to evaluate the efficiency of this environmentally friendly control method. 'Cinema F I ' carrying the N gene yielded significantly more than the two susceptible varieties. Varieties grafted onto resistant rootstocks outyielded those on their own roots although to different extent, which was not always significant. At the end of the vegetat ion period the roots of the rootstocks were undamaged and the roots of some resistant varieties were slightly infected. whereas the roots of susceptible varieties were severely damaged. According to our result  . both the use of resistant varieties and grafted plants offer an effective and environmentally safe way of controlling M. incognita.

Yield and quality of bell pepper with integrated application of fertilizers and irrigation on ordinary chernozem

2021 ◽  
pp. 21-23
Author(s):  
В.А. Борисов ◽  
А.М. Меньших ◽  
В.С. Соснов
Keyword(s):  
Capsicum Annuum ◽  
Drip Irrigation ◽  
Water Soluble ◽  
Bell Pepper ◽  
Mineral Fertilizers ◽  
Vegetable Crops ◽  
Potential Productivity ◽  
Yield And Quality ◽  
Root Feeding

Для обеспечения населения РФ качественной, полезной и экологически безопасной овощной продукцией в требуемом количестве необходимо изучение потенциальной продуктивности новых сортов и гибридов овощных культур, применение современных элементов технологии и продуктов в области агротехнологий выращивания. Хороший вкус, высокое содержание ценных для человека витаминов, микроэлементов и органических кислот вывело сладкий перец в ранг наиболее популярных овощных культур. В мире выведено и культивируется огромное количество сортов сладкого перца. В нашей стране наиболее распространенным сортотипом является перец сладкий (Capsicum annuum), или болгарский. На обыкновенных черноземах Бирючекутской селекционной опытной станции (Новочеркасский район Ростовской области), имеющих слабощелочную реакцию среды, мощный гумусовый горизонт, среднюю обеспеченность подвижным фосфором и высокую обменным калием, в 2017–2018 годах была исследована потенциальная продуктивность перца сладкого гибрида Темп при высоком уровне обеспеченности растений влагой и питательными элементами. Оценено комплексное действие основного внесения расчетных доз минеральных удобрений, капельного орошения, трехкратной подкормки водорастворимыми удобрениями «Мастер» и органоминеральным наноудобрением «Арксойл» на урожайность и качество перца сладкого. Выяснено, что основное удобрение и подкормки влияют, в первую очередь, на число плодов на одном растении, увеличивая их в 2–3,3 раза при незначительном повышении массы плода. Установлено, что без применения минеральных удобрений при капельном поливе было получено 25–27 т/га плодов. Использование рекомендованной дозы удобрений N120P120K120 увеличило урожайность перца до 50,5 т/га, а комплексное применение основного удобрения с 3-кратной корневой подкормкой водорастворимым удобрением «Мастер» позволило получить урожайность перца до 64,8 т/га. Наиболее высокая продуктивность растений была получена при комплексном использовании расчетной дозы на урожайность 90 т/га в сочетании с корневой подкормкой – 86,8 т/га при хорошем качестве плодов перца. To provide the population of the Russian Federation with high-quality, healthy and environmentally friendly vegetable products in the required amount, it is necessary to study the potential productivity of new varieties and hybrids of vegetable crops, use modern elements of technology and products in the field of agricultural technologies. Good taste, high content of vitamins, microelements and organic acids valuable for humans have made sweet peppers one of the most popular vegetable crops. A huge number of varieties of sweet peppers have been bred and cultivated in the world. In our country, the most common cultivar type is bell pepper (Capsicum annuum) or Bulgarian. On ordinary chernozems of the Biryuchekutskaya selection experimental station (Novocherkassk district of the Rostov region), which have a weakly alkaline reaction of the environment, a powerful humus horizon, an average supply of mobile phosphorus and high exchangeable potassium, in 2017-2018, the potential productivity of sweet pepper the level of supply of plants with moisture and nutrients. The complex effect of the main application of the calculated doses of mineral fertilizers, drip irrigation, 3-fold top dressing with water-soluble fertilizers Master and organomineral nanofertilizers Arxoil on the yield and quality of bell peppers was evaluated. It was found that the main fertilization and feeding affect, first of all, the number of fruits per 1 plant, increasing them by 2-3.3 times with a slight increase in the weight of the fruit. It was found that without the use of mineral fertilizers with drip irrigation, 25-27 t/ha of fruits were obtained. The use of the recommended dose of fertilizers N120P120K120increased the yield of pepper to 50.5 t/ha, and the complex application of the main fertilizer with 3-fold root feeding with the water-soluble fertilizer Master allowed to obtain the yield of pepper up to 64.8 t/ha. The highest plant productivity was obtained with the integrated use of a calculated dose for a yield of 90 t / ha in combination with root feeding - 86.8 t/ha with good quality pepper fruits.

scholarly journals Steatocrit: A Simple Method for Detection Fat Malabsorption

2019 ◽  
Vol 32 (11-12) ◽  
pp. 298-303
Author(s):  
Suharyono Suharyono ◽  
Hindra Irawan Satari ◽  
Agus Firmansyah
Keyword(s):  
Nutritional Status ◽  
Chronic Diarrhoea ◽  
Absorption Test ◽  
Technical Expertise ◽  
Simple Method ◽  
Female Patients ◽  
Alternative Method ◽  
Fat Malabsorption

Steatocrlt was determined through microcentrifugation of fecal hemogenate from 45 patients with chronic diarrhoea. In the same patients urine materials were collected to determine fat malabsorption using Lipiodol absorption test. There were 28 male and 17 female patients. Severe malabsorption using steatocrit was detected tn 31 patients (68;9%), while LAT determined severe malabsorption in 34 patients (75.5%). The overall sensitivity was 88.2%, and spesificity was 90.9%. Nutritional status did not influence the sensitivity and spesificity of steatocrit. We propose that this simple semiquantitative test can be used as an alternative method for detecting fat malabsorption particularly in laboratories with limited technical expertise.

scholarly journals Sensitivity of Phytophthora capsici on Vegetable Crops in Georgia to Mandipropamid, Dimethomorph, and Cyazofamid

Plant Disease ◽  
2012 ◽  
Vol 96 (9) ◽  
pp. 1337-1342 ◽  
Author(s):  
K. L. Jackson ◽  
J. Yin ◽  
P. Ji
Keyword(s):  
Disease Management ◽  
Mycelial Growth ◽  
Phytophthora Capsici ◽  
Chemical Compounds ◽  
Bell Pepper ◽  
Vegetable Production ◽  
Vegetable Crops ◽  
Phytophthora Blight ◽  
Significant Component ◽  
Serious Disease

Phytophthora blight, caused by Phytophthora capsici, is a serious disease in vegetable production, and selective use of fungicides continues to be a significant component of disease management programs. The effect of three chemical compounds—mandipropamid, dimethomorph, and cyazofamid—on asexual stages of P. capsici collected from bell pepper and cucurbits in Georgia was assessed in this study. Forty isolates of P. capsici were determined to be sensitive to mandipropamid and dimethomorph based on mycelial growth, zoospore germination, and sporangial production. Concentrations that were 50% effective (EC50 values) of mandipropamid that inhibited mycelial growth, zoospore germination, and sporangial production of the isolates averaged 0.03, 5.70, and 0.02 μg/ml, respectively. EC50 values of dimethomorph in inhibiting mycelial growth, zoospore germination, and sporangial production averaged 0.24, 0.10, and 0.46 μg/ml, respectively. The majority of isolates were either resistant or intermediately sensitive to cyazofamid at 500 μg/ml or lower concentrations based on mycelial growth or sporangial production, although all the isolates were sensitive to this compound based on zoospore germination, with an average EC50 of 0.04 μg/ml. The results indicated that P. capsici populations in Georgia have not developed resistance to mandipropamid and dimethomorph whereas, for the majority of the isolates, certain asexual stages were resistant to cyazofamid.

scholarly journals An Overview of the U.S. Bell Pepper Industry

EDIS ◽  
2018 ◽  
Vol 2018 (2) ◽  
Author(s):  
Trina Biswas ◽  
Zhengfei Guan ◽  
Feng Wu
Keyword(s):  
Resource Economics ◽  
The United States ◽  
Bell Pepper ◽  
Vegetable Crops ◽  
The Us ◽  
The World ◽  
Economics Department ◽  
Economic Contribution ◽  
Production Prices ◽  
The U.S

Bell pepper is one of the most widely cultivated vegetable crops in the world; it is widely grown all over the United States, and production of bell pepper has been a major economic contribution to the vegetable industry in Florida and California. This 4-page fact sheet written by Trina Biswas, Zhengfei Guan, and Feng Wu and published by the UF/IFAS Food and Resource Economics Department provides an overview of the US bell pepper industry, including production, prices, and trade. http://edis.ifas.ufl.edu/fe1028

scholarly journals Penilaian gizi sederhana: alat penilaian praktis untuk menentukan status gizi pasien rawat inap di rumah sakit

2005 ◽  
Vol 1 (3) ◽  
pp. 137
Author(s):  
Ida Mardalena ◽  
Bambang Suprapto ◽  
Widarto Widarto ◽  
Bhisma Murti
Keyword(s):  
Nutritional Status ◽  
Screening Tool ◽  
Nutritional Assessment ◽  
High Sensitivity ◽  
Hospitalized Patients ◽  
Simple Method ◽  
High Incidence ◽  
Time Required ◽  
Sensitivity Specificity ◽  
Efficient Screening

Background: Absence of effective and efficient screening tool for assessment of nutritional status have lead to high incidence of malnutrition among hospitalized patients.Objective: To develope practical screening tool for assessing nutritional status of hospitalized patients.Method: A simple method of nutritional assessment, called The Simple Nutritional Assessment, was compared to albumin serum as the gold standard. This study involved 50 nurses and 50 hospitalized patients in Dr. Moewardi General Hospital, Surakarta.Result: There was significant concordance of nutritional status assessed by the Simple Nutritional Assessment and the level of albumin serum (k=0,92). Sensitivity, specificity, and likelihood ratio of the Simple Nutritional Assessment compared to serum albumin were 92%, 67–75%, and 3.8, respectively. Internal consistence of the Simple Nutritional ssessment is high (Alpha=0.80). Average time required for doing the assessment was only 5 minutes.Conclusion: The Simple Nutritional Assessment can be used for quick screening of nutritional status of hospitalized patients with high sensitivity and reliability.

scholarly journals Earth-Kind® Vegetable Production in the Home Garden Using Mushroom and City Compost

2014 ◽  
Vol 24 (4) ◽  
pp. 480-483
Author(s):  
Joseph G. Masabni ◽  
S. Alan Walters
Keyword(s):  
Calcium Nitrate ◽  
Solanum Melongena ◽  
N Fertilizer ◽  
Bell Pepper ◽  
Home Garden ◽  
Vegetable Production ◽  
Vegetable Crops ◽  
Mushroom Compost ◽  
Vegetable Gardening ◽  
Home Gardener

A field study was conducted in 2010 and 2011 to determine the suitability of Earth-Kind® production principles for home vegetable gardening. Earth-Kind® production encourages water and energy conservation, and reduction of fertilizer and pesticide use. Seven vegetable cultivars [Sweet Banana and bell pepper (Capsicum annuum); Celebrity and Juliet tomato (Solanum lycopersicum); Spacemaster cucumber (Cucumis sativus); Ichiban eggplant (Solanum melongena); Spineless Beauty zucchini (Cucurbita pepo)] were grown in mushroom compost (MC) or city compost (CC). Both composts were incorporated preplant into the soil with shredded wood mulch placed over them. In each year, nitrogen (N) fertilizer (15.5N–0P–0K from calcium nitrate) was applied preplant to CC plots to bring initial soil fertility levels similar to MC plots. No additional fertilizer was applied during the growing season. Drip irrigation was supplemented weekly. One application each of neem oil and pyrethrin (organic insecticides) and chlorothalonil (synthetic fungicide) was applied before harvest in 2010, but none was applied in 2011. Results indicated that Earth-Kind® technique could be effectively implemented in a home vegetable garden. MC is better suited for Earth-Kind® vegetable production than CC for some vegetables. Banana pepper, bell pepper, and zucchini had twice the yield in MC plots when compared with CC plots. No yield differences (P > 0.05) were observed between composts for tomato, eggplant, or cucumber. With proper irrigation and soil preparation practices such as addition of compost and mulch, Earth-Kind® vegetable gardening techniques can be used for selected vegetable crops without additional N fertilizer or pesticides. Furthermore, Earth-Kind® vegetable gardening can be successful as long as the home gardener understands that low yields may result from using this production method. However, often the home gardener is more concerned about producing vegetables using sustainable, environmentally friendly methods than maximizing yields.

scholarly journals Response of Four Vegetable Crops to Fluridone-treated Irrigation Water

1996 ◽  
Vol 6 (4) ◽  
pp. 396-400
Author(s):  
Stratford H. Kay ◽  
Ross B. Leidy ◽  
David W. Monks
Keyword(s):  
Irrigation Water ◽  
Sweet Corn ◽  
Sandy Loam ◽  
Matter Content ◽  
Bell Pepper ◽  
Loamy Sand ◽  
Vegetable Crops ◽  
Humic Matter ◽  
Zea May ◽  
Aquatic Herbicide

Greenhouse studies examined the effects of an aquatic herbicide (fluridone) in irrigation water on four vegetable crops growing on two soils. Tests on Fuquay loamy sand (0.3% humic matter) and Portsmouth fine sandy loam (4.1% humic matter) examined fluridone concentrations ≤250 μg·L−1. Injury to sweet corn (Zea may L.), cucumber (Cucumis sativus L.), bell pepper (Capsicum annum L.), and tomato (Lycopersicon esculentum L.) on these soils varied with soil type and stage of plant growth. Seedlings or new transplants were more susceptible to fluridone damage than older plants. All plants showed more injury on Fuquay loamy sand, which had the lowest humic matter content. Injury to cucumber occurred only to seedlings exposed to 250 μg·L−1 on the Fuquay loamy sand. Bell pepper was the most sensitive crop to fluridone. The “no observed effects level” below which no significant injury of a crop occurred over both soil types and both stages of crop maturity was 5 μg·L−1 for sweet corn, bell pepper, and tomato and 100 μg·L−1 for cucumber.

Sign in / Sign up

Export Citation Format

Share Document