scholarly journals Efficacy of Hot Air as a Postharvest Disinfestation Treatment Against Thrips on Cut Chrysanthe-Mums, Hawaii, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 399-399
Author(s):  
A. H. Hara ◽  
B.K.S. Hu ◽  
T. Y. Hata
Keyword(s):  
Agricultural Research ◽  
Tap Water ◽  
Analysis Data ◽  
Research Station ◽  
Cross Contamination ◽  
Light Bulb ◽  
Hot Air ◽  
Efficacy Trials ◽  
Air Chamber ◽  
The University

Abstract Efficacy trials were conducted at the University of Hawaii at Manoa, Waiakea Agricultural Research Station in Hilo, HI. Flowers were harvested on 2 Apr from a commercial planting in Mt. View, HI, and transported to the Experiment Station for subsequent tests. Flower stems were divided into 18 groups arranged in 6 treatments with 3 replicates of 10 stems each and held in 19 liter buckets containing 11 liters of tap water. Flowers were treated on 3 Apr (rep 1) and 8 Apr (reps 2 and 3). Treatment consisted of placing the bucket of flowers in the hot air chamber at 44.4 °C, 60% r.h., 0.23 m3 s-1 fan circulation at 26 °C (measured) for 1-5 h at 1 h interval. The check was not treated. Immediately after treatment, flowers were enclosed in bags made from spunbonded polyester (Reemay 2006 UV [20 g/m2], DuPont Wilmington, DE) to prevent cross contamination. Twenty-four hours after treatment, thrips were extracted from 10 flowers (1 flower per stem) using Berlese funnels heated with a 60 watt incandescent light bulb. Thrips were collected in a 8:2:1:1 solution of ethanol, distilled H2O, acetic acid and glycerin. The number of adults and nymphs were counted and pooled for analysis. Data were subjected to ANOVA and means separated by Waller Duncan k-ratio t test k = 100.

scholarly journals THE INFLUENCE OF SPRAYING WITH POTASSIUM SILICATE AND IRRIGATION WITH SALINE WATER IN SANDY SOIL ON Calendula officinalis L.

2019 ◽  
pp. 39-56
Keyword(s):  
Agricultural Research ◽  
Saline Water ◽  
Tap Water ◽  
Block Design ◽  
Foliar Spray ◽  
Dry Weight ◽  
Potassium Silicate ◽  
Research Station ◽  
Calendula Officinalis ◽  
Calendula Officinalis L

Two pots experiments were conducted at the Experimental Farm of El-Qassasin Horticultural Research Station, Agricultural Research Center, Ismailia Governorate, Egypt, during two successive seasons of 2016/2017 – 2017/2018, to investigate the effect of potassium silicate at (0, 4, 6, and 8 cm3/l) as a foliar spray under different levels of water salinity (tap water, 1000, 2000 and 3000 ppm) on Calendula officinalis L. plant. The experiment was performed in complete randomized block design as factorial experiment with 3 replicates. The obtained results cleared that using salinity levels decreased growth parameters (plant height, number of branches/plant, fresh and dry weights of herb/plant), flowering parameters (flower diameter, number of flowers/plant, fresh and dry weight of flowers (g/plant) during eight cuts and fresh and dry weight of flowers (g/plant/season)) and chemical constituents (chlorophyll a, chlorophyll b, carbohydrate and carotenoid contents) compared to control. Moreover, the highest values in these parameters were registered by potassium silicate at 8 cm3/l concentration. Proline content increased in leaves with using saline water at 3000 ppm + potassium silicate at 8 cm3/l. Generally, it could be concluded that potassium silicate at 8 cm3/l, showed a uniform impact in alleviating inhibition of Calendula officinallis L. plant growth and productivity under moderate salinity stress condition.

scholarly journals A preliminary report on the production characters of three types of cattle in Ghana.

1963 ◽  
Vol 11 (5) ◽  
pp. 364-377
Author(s):  
G. Montsma
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Agricultural Research ◽  
West African ◽  
Research Station ◽  
Insufficient Data ◽  
The West ◽  
Weight Growth ◽  
Before And After ◽  
The University

At the University of Ghana's Agricultural Research Station at Nungua observations were begun in 1957 on the performance of West African Shorthorn, N'Dama and Sokoto Gudali cattle. The main preliminary findings are discussed under the following headings: body weight, growth rate, milk yield, reproductive efficiency, and dentition and age. In spite of the fact that the N'Dama and West African Shorthorn are naturally small animals, body weight and growth rate could be substantially increased by better feeding. Insufficient data are as yet available on the Sokoto. Under the better-than-average feeding conditions at the station, av. body weight at 8 mths. was 305 lb. in the N'Dama, 340 lb. in the West African Shorthorn, and 470 lb. in the Sokoto. Maximum body weight at 8 mths. was 340, 360 and 550 lb. resp. In animals fed a concentrate supplement, av. 252-day milk yields per 100 lb. body weight were 295, 300 and 335 lb. for the N'Dama, West African Shorthorn and Sokoto resp. max. yields, expressed in a similar manner, being 416, 430 and 458 lb. resp. Milk yields were estimated by weighing the calves before and after suckling thrice daily for approx. 20 mins The av. calving percentages for the 3 breeds were 85, 83 and 76 resp. which are equivalent to calving intervals of 14-2, 14.5 and 15.8 mths. The av. age at 1st calving in the West African Shorthorn was estimated to be 3 yrs. (2.3-3.8). Insufficient data were available on the other 2 breeds. It is considered that, if adequately fed, heifers are capable of calving at 27-30 mths. of age. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Leslie William Mapson, 1907-1970

1972 ◽  
Vol 18 ◽  
pp. 427-444
Keyword(s):  
Low Temperature ◽  
Agricultural Research ◽  
Medical Profession ◽  
Close Association ◽  
Research Station ◽  
East Anglia ◽  
Agricultural Research Council ◽  
Food Research ◽  
The University ◽  
Plant Respiration

Leslie William Mapson was head of the Plant Biochemistry Division of the Food Research Institute at Norwich. A career of intensive scientific research came to an end far too early. The Institute at Norwich only recently had been started by the Agricultural Research Council under the directorship of Sidney Elsden. It originated from a part of the Low Temperature Research Station in Cambridge. One of the firmly held ideas of W. B. Hardy at the original foundation was that the Station at Cambridge should operate in close association with the University. At Norwich this idea had been in a sense realized as Mapson had been made Hon. Professor in the University of East Anglia in 1969. In the earlier days in Cambridge Hardy was able to have the co-operation of both F. F. Blackman and the Hon. Mrs Onslow. They were concerned with the physiology and biochemistry of plant respiration in relation to the storage of fruit and vegetables. This work was continued by many others including Mapson until the ending of the Low Temperature Research Station in Cambridge and the transfer of that part of its activities to Norwich. The loss of his guiding spirit and his keen personality with his ingenious approach so soon after the transfer to Norwich was a tragedy for all concerned. He was twice married, firstly to Muriel Dodds in 1932 and there was one son who did not survive to manhood; secondly to Dorothy Lilian Waldock (née Pell) and they have one daughter, Elizabeth, who is entering the medical profession. For many years they lived in the village of Hauxton, Cambridgeshire, and they had a most happy home. They were active members of the Church community in that village where he was much respected. Also he was a governor of the Melbourne Village College from its foundation.

scholarly journals Granular and Liquid Insecticide Performance Against Corn Rootworm, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 198-198
Author(s):  
A. M. Journey ◽  
K. R. Ostlie
Keyword(s):  
Agricultural Research ◽  
Row Spacing ◽  
Research Station ◽  
Corn Rootworm ◽  
Silt Loam ◽  
University Of Minnesota ◽  
The Press ◽  
Loam Soil ◽  
The University ◽  
Higher Sensitivity

Abstract Experimental plots measuring 2 rows (30-inch row spacing) by 50 ft were planted on 12 May in a Waukegan silt loam soil at the University of Minnesota Agricultural Research Station, Rosemount. Treatments were arranged in a RCBD with 4 replications. Granular insecticides were applied with a modified Noble applicator at planting, either banded ahead of the press wheel or in furrow. Postemergence (25 Jun) sidedress applications of liquid insecticides were made with a CO2-powered backpack sprayer at 20 gpa. Percent lodging was determined on 16 Aug. On 25 Aug, 5 roots from each plot were dug, washed, and rated using the Iowa 1-6 scale (with half-point increments for higher sensitivity).

scholarly journals Use of Labeled and Experimental Insecticides for Control of Potato Leafhoppers and Plant Bugs in Wisconsin, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 153-153
Author(s):  
John Wedberg ◽  
Bryan Jensen
Keyword(s):  
Agricultural Research ◽  
Compressed Air ◽  
Research Station ◽  
Insect Abundance ◽  
Agricultural Research Station ◽  
University Of Wisconsin ◽  
The University ◽  
Experimental Plots ◽  
Sweep Net

Abstract Experimental plots measuring 40 × 50 ft were established in a field of ‘Olds 98’ alfalfa at the University of Wisconsin Agricultural Research Station, Arlington, WI. Treatments were replicated 4 times in a RCBD and applied on 21 Jul by using a tractor-mounted compressed air sprayer equipped with 8001 TeeJet flat fan nozzles delivering 17 gal/acre of finished spray at 40 psi when driven at 2.6 mph. Insect abundance was estimated by taking 20 consecutive pendulum sweeps in each plot with a 15 inch diam sweep net at 7, 11 and 15 DAT.

scholarly journals The ant mosaic in Ghana cocoa farms

1972 ◽  
Vol 62 (2) ◽  
pp. 151-160 ◽  
Author(s):  
J. D. Majer
Keyword(s):  
Agricultural Research ◽  
Three Dimensional ◽  
Research Station ◽  
Oecophylla Longinoda ◽  
Nesting Sites ◽  
Vegetative Succession ◽  
Competition For Food ◽  
The University ◽  
University Of Ghana ◽  
Cocoa Plantation

The distribution of ants in a 2·25-ha cocoa plantation at the University of Ghana Agricultural Research Station, Kade, was recorded in December 1970. The 44 species of ants found could be grouped as dominant, co-dominant, sub-dominant and nondominant. Oecophylla longinoda (Latr.) and Macromischoides aculeatus (Mayr) were mutually exclusive as were six Crematogaster spp.; the latter were also exclusive of O. longinoda and M. aculeatus. Camponotus acvapimensis Mayr became dominant under insolated conditions, and Platythyrea frontalis Emery for reasons unknown. The distribution of these ant species in cocoa plantations resembles a three-dimensional mosaic which is preserved by their aggressiveness and by competition for food and nesting sites. It is suggested that this mosaic is due to vegetative succession.

scholarly journals × Polifreda ‘Lindstrom’, a Cross Between False Aloe and Mexican Tuberose

2014 ◽  
Vol 32 (1) ◽  
pp. 51-53
Author(s):  
Will Ritchie ◽  
Jon T. Lindstrom
Keyword(s):  
American South ◽  
Agricultural Research ◽  
Intergeneric Hybrid ◽  
Associate Professor ◽  
Research Station ◽  
University Of Arkansas ◽  
Winter Temperatures ◽  
Partial Shade ◽  
The American South ◽  
The University

× Polifreda ‘Lindstrom’ was developed at the University of Arkansas to increase the range of perennials available to horticulture in the American South. The cultivar was selected from 14 viable seedlings produced by crossing Manfreda virginica (L.) Salisb. ex Rose (male) and Polianthes tuberosa L. (female) via controlled pollination. Specimens have been grown at the University of Arkansas Agricultural Research Station in Fayetteville, Arkansas (USDA Zone 6b) since 2005 and propagated by either division or micropropagation. Desirable characters inherited from P. tuberosa include two flowers per node, a pleasant fragrance, and heat and drought tolerance. Characteristics resembling M. virginica include finely-denticulate leaf margins, a scapose raceme inflorescence type, and tolerance of winter temperatures as low as −25C (−11F). The intergeneric hybrid represents the first cultivar of the nothogenus × Polifreda. The cultivar epithet ‘Lindstrom’ was chosen to honor the contribution to horticulture of the late Jon T. Lindstrom, who was the instigator of the breeding program and a former associate professor at the University of Arkansas. It is proposed that × Polifreda ‘Lindstrom’ would be suited to either perennial borders or rock gardens, situated in full sun or partial shade.

scholarly journals Insecticidal Trials Against Vanda Thrips on Orchids, Hawaii, 1994

1996 ◽  
Vol 21 (1) ◽  
pp. 381-381
Author(s):  
T. Y. Hata ◽  
A. H. Hara ◽  
B.K.S. Hu
Keyword(s):  
Acetic Acid ◽  
Treatment Efficacy ◽  
Analysis Data ◽  
Polyethylene Film ◽  
Light Bulb ◽  
Incandescent Light ◽  
Newport News ◽  
The University ◽  
Experimental Plots ◽  
Basalt Rock

Abstract Insecticides were evaluated for efficacy from 8 Dec through 15 Dec 94 at the University of Hawaii Waiakea Experiment Station in Hilo, Hawaii. Plants (approximately 6.5 ft in height) growing in basalt rock under 6 mil. clear FVG 3HLFI polyethylene film covering were used in this study. Experimental plots were arranged in a RCB with 3 blocks, 30 plants per block. A spreader-sticker (Ad-here, J. R. Simplot, Lanthrop, CA) was added to all treatments, including the control, at a rate of 5 ft. oz. per 100 gals. The control was sprayed with water. Insecticides were applied once at approximately 200 gpa using a backpack sprayer (Solo, Newport News, VA) equipped with an 8004 Teejet nozzle at 40 psi. Treatment efficacy was evaluated by randomly harvesting 30 blossoms from each block. Thrips were extracted from the blossoms with Berlese funnels heated with a 60 watt incandescent light bulb and collected in an 8:2:1:1 solution of ethanol, distilled H2O, acetic acid and glycerin. The number of nymphs and adults was pooled for analysis. Data were transformed to log10(x + 1) and analyzed by ANOVA.

scholarly journals Effects of Seed Moisture Content, Cooking Time, and Chamber Temperature on Nuña Bean (Phaseolus vulgaris L.) Popping

HortScience ◽  
2009 ◽  
Vol 44 (1) ◽  
pp. 135-137 ◽  
Author(s):  
Jesse Vorwald ◽  
James Nienhuis
Keyword(s):  
Phaseolus Vulgaris ◽  
Moisture Content ◽  
Agricultural Research ◽  
Research Station ◽  
Phaseolus Vulgaris L ◽  
Seed Moisture Content ◽  
Hot Air ◽  
Seed Moisture ◽  
Chamber Temperature ◽  
Main Effects

Nuña beans are a type of common bean (Phaseolus vulgaris L.) native to the Andean region of South America that possess the unusual property of popping; however, little is known regarding postharvest environmental effects on popping. Seed of a photoperiod-insensitive, temperate-adapted nuña bean breeding line, ‘PB24’, was produced at the Arlington Agricultural Research Station, Arlington, WI, and evaluated in a hot air popper. The experimental design was a factorial with three levels of popping time (60, 90, and 120 s), five levels of chamber temperature (101, 146, 208, 244, and 268 °C), and eight levels of seed moisture (2.5%, 3.2%, 5.2%, 6.6%, 8.3%, 12.0%, 15.3%, and 20%). Percentage of popped seed, sufficiently expanded to shed the seedcoat, was calculated. A curvilinear decrease in popping percentage was observed with increasing seed moisture content. In contrast, a curvilinear increase in popping percentage was observed with increasing chamber temperature and popping time. Larger mean squares were observed for main effects and first-order interactions associated with seed moisture content and chamber temperature compared with popping time. A combination of seed moisture below 5%, popping chamber temperature of 244 °C, and popping time of 90 s resulted in popping percentages greater than 90%.

Effect of intercrops on growth and yield of turmeric (Curcuma longa L.)

2017 ◽  
Vol 26 (1) ◽  
pp. 51
Author(s):  
R Chitra, P Hemalatha
Keyword(s):  
Short Duration ◽  
Agricultural Research ◽  
Curcuma Longa ◽  
Growth And Yield ◽  
Research Station ◽  
Initial Growth ◽  
Agricultural Research Station

The initial growth of turmeric is rather slow and takes about 4-5 months to cover the inter space. Therefore, the available space between the rows of turmeric could be effectively utilized by growing short duration crops like, vegetables, cereals etc. Hence, it is worthwhile to explore the possibilities of growing compatible crops with turmeric. With this background the experiment on effect of intercrops on growth and yield of turmeric was conducted at Agricultural Research Station, Bhavanisagar. Among the different intercrops, turmeric with cowpea recorded the maximum fresh rhizome yield per hectare (30.78 t ha-1) while turmeric + bhendi registered the maximum B:C ratio (2.68:1). Monocropping of turmeric recorded the lowest B:C ratio (1.67:1) among all the treatments.  

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