scholarly journals Comparative Vegetative, Nutritional and Anatomical Study of Two Almond Varieties Grafted on Bitter Almond and Nemaguard Peach Rootstocks

2021 ◽  
pp. 140-148
Author(s):  
Mahmoud Sami Abou Rayya ◽  
Nabila Elbadawy Kaseem ◽  
Thanaa Shaban Mohamed Mahmoud
Keyword(s):  
Cross Sections ◽  
Research Centre ◽  
Research Station ◽  
Vascular Differentiation ◽  
Graft Union ◽  
Mesophyll Cells ◽  
Bitter Almond ◽  
Cambial Cells ◽  
Peach Rootstocks ◽  
Success Percentage

A comparative study was conducted during the 2017/2018 and 2018/2019 growing seasons for Nonpareil and Ne Plus Ultra almond cvs grafted on Bitter almond and Nemaguard peach rootstocks at the Experimental Research Station of National Research Centre at Nubaria, El Behera governorate, Egypt. The comparison was evaluated through the grafting success percentage, vegetative growth, determination of some leaf mineral composition, as well as, the anatomical examination of scion/rootstock union zone and cross-section of leaves. The obtained results clarified that the grafting success percentage was significantly affected by the different used rootstocks. Using Bitter almond rootstock recorded the highest percentage of grafting success, leaf chlorophyll content, root length, and a number of lateral root /plant in both cultivars. Using Nemaguard peach rootstock recorded significantly the highest values of scion length, stem girth above and below union zone, number of branches and leaves/plant, leaf area as well as seedlings fresh and dry weight. Leaves of both cultivars grafted on Nemaguard peach rootstock recorded the highest concentrations of leaf mineral contents as compared to those grafted on Bitter almond rootstock. Cross-sections of the graft union zone were taken after 28 days and 6 months from grafting for anatomical analysis. The callus cells developed 28 days after grafting, but cambial cells between the rootstock and scion tissues did not occur in all scion/rootstock combinations. After 6 months of grafting, cambial cells were established, vascular differentiation was observed, regular parenchymatic tissue properties and sclerenchyma bundles were seen in the graft union. There was no problem in terms of compatibility of Nonpareil and Ne Plus Ultra on Bitter almond and Nemaguard peach rootstocks. Comparing leaf cross-sections of almond grafted on both rootstocks demonstrated that the density of mesophyll cells was affected as a consequence of the rootstock–scion interaction. Nemaguard peach rootstock can be recommended for grafting Nonpareil and Ne Plus Ultra almond cultivars under Nubaria conditions to produce vigorous trees.

scholarly journals Wound-inducible ANAC071 and ANAC096 transcription factors promote cambial cell formation in incised Arabidopsis flowering stems

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keita Matsuoka ◽  
Ryosuke Sato ◽  
Yuki Matsukura ◽  
Yoshiki Kawajiri ◽  
Hiromi Iino ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Culture System ◽  
Cell Formation ◽  
Related Gene ◽  
Mesophyll Cells ◽  
Cambial Cell ◽  
Differentiated Cells ◽  
Cell Induction ◽  
Cambial Cells ◽  
Wound Tissue

AbstractANAC071 and its homolog ANAC096 are plant-specific transcription factors required for the initiation of cell division during wound healing in incised Arabidopsis flowering stems and Arabidopsis hypocotyl grafts; however, the mechanism remains mostly unknown. In this study, we showed that wound-induced cambium formation involved cell proliferation and the promoter activity of TDR/PXY (cambium-related gene) in the incised stem. Prior to the wound-induced cambium formation, both ANAC071 and ANAC096 were expressed at these sites. anac-multiple mutants significantly decreased wound-induced cambium formation in the incised stems and suppressed the conversion from mesophyll cells to cambial cells in an ectopic vascular cell induction culture system (VISUAL). Our results suggest that ANAC071 and ANAC096 are redundantly involved in the process of “cambialization”, the conversion from differentiated cells to cambial cells, and these cambium-like cells proliferate and provide cells in wound tissue during the tissue-reunion process.

Dollis Hill at War

Colossus ◽  
2006 ◽  
Author(s):  
Jack Copeland ◽  
David Bolam
Keyword(s):  
Research Laboratory ◽  
Research Centre ◽  
Research Station ◽  
Post Office ◽  
Digital Electronics ◽  
Massive Structure ◽  
Engineering Department ◽  
New Research ◽  
Permanent Form ◽  
Main Entrance

The Dollis Hill building was erected in 1933 as the headquarters of the Post Office Engineering Department Research Station. Here T. H. Flowers pioneered digital electronics. The imposing brick building looks out from its hilltop site over the suburbs of North London (see photograph 41). It housed what was probably the most active telecommunications research centre in Europe. The building still stands today. Now converted into condominiums, it flanks a road named Flowers Close. Dollis Hill (DH) supplied much of the cryptanalytical machinery for Bletchley Park. Another of its roles was to provide an emergency alternative to the underground Cabinet War Rooms in Whitehall. Early in the war a secret underground citadel was excavated at DH. A massive structure of reinforced concrete, the citadel extended three floors into the ground. It is said that Churchill took against the new bunker, and the War Cabinet met at DH only once. Gil Hayward joined the Post Office Research Station in 1934. He describes the ethos of the new research laboratory: I went to DH at the age of 16, straight from school. The Research Station had existed in permanent form for less than two years, having previously been accommodated in a series of wooden huts. ‘Research is the Door to Tomorrow’ was inscribed in stone above the main entrance to the new building. The atmosphere at DH was unique. Original thinking was encouraged and there was a substantial amount of freedom. Norman Thurlow entered the Engineering Department of the Post Office as a recruit some three years before the war. In 1942, he joined the Dollis Hill group and participated in Flowers’ engineering revolution. The Post Office included the post and telephone businesses. The Engineering Department served both operations for all engineering work, including R&D. The Research Branch at Dollis Hill consisted of several different groups. Among them were the telegraph, switching, and physics groups, headed by Frank Morrell, Tom Flowers, and Eric Speight, respectively. These three groups all became involved in some way with the Bletchley Park operation. The state of the art was defined by the telephone and telegraph systems.

Alert common bean

2003 ◽  
Vol 83 (1) ◽  
pp. 75-77 ◽  
Author(s):  
H. H. Mündel ◽  
F. A. Kiehn ◽  
G. Saindon ◽  
H. C. Huang ◽  
R. L. Conner
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Bean Common Mosaic Virus ◽  
High Yield ◽  
Research Centre ◽  
Research Station ◽  
Canadian Prairies ◽  
Dry Bean ◽  
Cultivar Description ◽  
Moderately Resistant

Alert is a high-yielding, semi-erect great northern common bean (Phaseolus vulgaris L.) cultivar. It was developed from a series of crosses at the Centro Internacional de Agricultura Tropical (CIAT), Cali, Colombia, on contract to the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, with cooperation from the AAFC Morden Research Station. Alert is well adapted to the eastern Canadian prairies, yielding significantly higher than the check cultivar, US1140, at 130% in the official Manitoba Dry Bean Co-operative Registration Trials. Alert is moderately resistant to white mold and resistant to races 1 and 15 of bean common mosaic virus (BCMV). It is susceptible to the alpha and alpha Brazil races of anthracnose, but resistant to the delta race. Key words: Common bean, Phaseolus vulgaris, great northern bean, cultivar description, high yield

scholarly journals Neutron inelastic cross section measurements on 58,60Ni

2020 ◽  
Vol 239 ◽  
pp. 01040
Author(s):  
Adina Olacel ◽  
Catalin Borcea ◽  
Marian Boromiza ◽  
Philippe Dessagne ◽  
Gregoire Henning ◽  
...  
Keyword(s):  
Cross Sections ◽  
Linear Accelerator ◽  
Inelastic Neutron Scattering ◽  
Production Cross ◽  
Inelastic Neutron ◽  
Research Centre ◽  
Electron Linear Accelerator ◽  
Joint Research ◽  
Joint Research Centre ◽  
Reported Data

A natural nickel sample was used at the GELINA (Geel Electron LINear Accelerator) neutron source of the European Commission, Joint Research Centre, Geel to measure the neutron inelastic cross sections. The GAINS (Gamma Array for Inelastic Neutron Scattering) spectrometer was employed to detect the emitted γ rays while a 235U fission chamber monitored the neutron flux. We report the preliminary production cross sections corresponding to the first transitions in 58,60Ni in comparison with previously reported data and with TALYS 1.9 calculations performed using the default input parameters.

scholarly journals Effect of Seed Rate and Walkway on Yield of Field Pea Under Relay Cropping with T. Aman Rice

2018 ◽  
Vol 21 (1) ◽  
pp. 95-103
Author(s):  
MO Ali ◽  
AHMMR Talukder ◽  
L Nahar
Keyword(s):  
Agricultural Research ◽  
Research Centre ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Seed Rate ◽  
Benefit Cost Ratio ◽  
Pod Yield ◽  
Local Cultivar ◽  
Relay Cropping

The field experiment was conducted at Pulses Research Centre (PRC), Ishurdi, Pabna and Regional Agricultural Research Station (RARS), Jamalpur during rabi 2012-2013 to find out the effect of seed rate and walkway for green pea production as relay cropping with transplanted Aman rice. The experiment was based on six seed rates @ 50, 60, 70, 80, 90 and 100 kg ha-1 and two walking ways viz. 15 cm wide walkway at 2 m interval over the plot and control with three replications. A local cultivar of pea, named Natore was used in this trial. Results revealed that the treatment with 100 kg seed ha-1 gave the highest pod yield of 5.13 t ha-1 and 4.98 t ha-1 at Jamalpur and Ishurdi locations, respectively which was similar to 80 (S4) and 90 (S5) kg seed ha-1.. Walkway had no significant variation in yield and yield contributing characters but it produced the higher yield over the control. Using walkway, 100 kg seed ha-1 (S6) and 15 cm walkway at 2 m interval over the plot (W1) produced the highest pod yield of 5.14 t ha-1 and 4.95 t ha-1 and fodder yield of 6.70 t ha-1 and 6.13 t ha-1 at Jamalpur and Ishurdi locations, respectively. Maximum gross margin of Tk. 1,06,040 ha-1 and Tk. 1,02,401 ha-1 was contributed by combinations of using 100 kg seed ha-1 and 15 cm walking way but maximum benefit cost ratio (BCR) of 3.40 and 3.43 were obtained from S5×W1 combination at Jamalpur and Ishurdi locations, respectively. It is concluded that pea cultivar can be successfully cultivated for green pod production through the use of 90-100 kg ha-1 seed with walkway of 15 cm wide in the plot after 2 m intervals. Bangladesh Agron. J. 2018, 21(1): 95-103

Quantitative CO2 monitoring at the CaMI Field Research Station (CaMI.FRS), Canada, using a hybrid structural-petrophysical joint inversion

2020 ◽  
Author(s):  
Dennis Rippe ◽  
Michael Jordan ◽  
Marie Macquet ◽  
Don Lawton ◽  
Anouar Romdhane ◽  
...  
Keyword(s):  
Joint Inversion ◽  
Field Research ◽  
Research Centre ◽  
Inversion Method ◽  
Model Parameters ◽  
Research Station ◽  
Geophysical Monitoring ◽  
Monitoring Techniques ◽  
Research Institutes ◽  
Structural Joint

<p>A key requirement by the European CCS directive for the safe operation of geological CO<sub>2</sub> storage is the operator's responsibility to demonstrate containment of the injected CO<sub>2</sub> and conformance between its actual and modelled behavior. Understanding the subsurface behavior and long-term fate of the injected CO<sub>2</sub> requires the quantification of key reservoir parameters (e.g. pore pressure, CO<sub>2</sub> saturation and strain in the overburden). Reliable quantification of these parameters and distinction between them pose a challenge for conventional monitoring techniques, which could be overcome by combining advanced multi-disciplinary and multi-method monitoring techniques in a joint inversion.</p><p>Within the <strong>aCQurate</strong> project, we aim to develop a new technology for <strong>a</strong>ccurate <strong>CO<sub>2</sub></strong> monitoring using <strong>Qu</strong>antitative joint inversion for la<strong>r</strong>ge-sc<strong>a</strong>le on-shore and off-shore s<strong>t</strong>orag<strong>e</strong> applications. In previous applications of joint inversion to CO<sub>2</sub> monitoring, we successfully combined the strengths and advantages of different geophysical monitoring techniques (i.e. seismics with its high spatial resolution and geoelectrics with its high sensitivity to changes in CO<sub>2</sub> saturation), using a cross-gradient approach to achieve structural similarity between the different models. While this structural joint inversion provides a robust link between models of different geophysical monitoring techniques, it lacks a quantitative calibration of the model parameters based on valid rock-physics models. This limitation is addressed by extending the previously developed structural joint inversion method into a hybrid structural-petrophysical joint inversion, which allows integration of cross-property relations, e.g. derived from well logs.</p><p>The hybrid structural-petrophysical joint inversion integrates relevant geophysical monitoring techniques in a modular way, including seismic, electric and potential field methods (FWI, CSEM, ERT, MMR and gravity). It is implemented using a Bayes formulation, which allows proper weighting of the different models and data sets, as well as the relevant structural and petrophysical joint inversion constraints during the joint inversion.</p><p>The hybrid joint inversion is designed for on-shore and off-shore CO<sub>2</sub> storage applications and will be demonstrated using synthetic data from the CaMI Field Research Station (CaMI.FRS) in Canada. CaMI.FRS is operated by the Containment and Monitoring Institute (CaMI) of CMC Research Institutes, Inc., and provides an ideal platform for the development and deployment of advanced CO<sub>2</sub> monitoring technologies. CO<sub>2</sub> injection occurs at 300 m depth into the Basal Belly River sandstone formation, which is monitored using a large variety of geophysical and geochemical monitoring techniques. In preparation for the application to real monitoring data, we present the application of the joint inversion to synthetic full waveform inversion (FWI) and electrical resistivity tomography (ERT) data, derived for a geostatic model with dynamic fluid flow simulations.</p><p>In addition to obtaining a better understanding of the subsurface behavior of the injected CO<sub>2</sub> at CaMI.FRS, our goal is to mature the joint inversion technology further towards large-scale CO<sub>2</sub> storage applications, e.g. on the Norwegian Continental Shelf.</p><p><strong>Acknowledgements</strong></p><p>Funding is provided by the Norwegian CLIMIT program (project number 616067), Equinor ASA, CMC Research Institutes, Inc., University of Calgary, Lawrence Berkeley National Laboratory (LBNL), Institut national de la recherche scientifique (INRS), Quad Geometrics Norway AS and GFZ German Research Centre For Geosciences (GFZ).</p>

Selection of the components of a synthetic variety of Andropogon gayanus

1986 ◽  
Vol 106 (3) ◽  
pp. 629-633
Author(s):  
B. Grof
Keyword(s):  
Latin America ◽  
Agricultural Research ◽  
Personal Communication ◽  
Research Centre ◽  
Research Station ◽  
Northern Nigeria ◽  
Andropogon Gayanus ◽  
Bunch Grass ◽  
San Martín ◽  
Selection Of

Andropogon gayanus Kunth var. bisquamulatus Hack, is a polymorphic bunch grass, widely distributed throughout most of the tropical and subtropical savannahs of Africa, south of the Sahara in areas with a long dry season. This grass was introduced into the Colombian Llanos from the Shika Agricultural Research Station, northern Nigeria, in 1974. Subsequent to its introduction, a series of agronomic trials were initiated by Centro Internacional de Agricultura Tropical (CIAT) at the Carimagua Research Centre and various national research institutions in Latin America to evaluate the potential of A. gayanus, primarily in the vast Ultisol and Oxisol savannah regions of the continent. As a result of further evaluation at a number of locations, accession A. gayanus var. bisquamulatus CIAT 621 was released in 1980 in Brazil as cv. Flanaltina and in Colombia as cv. Carimagua 1. During 1982–3 Peru, Venezuela and Panama subsequently released the same accession under the cultivar names of San Martin, Sabanero and Veranero, respectively. It is estimated that 168000 ha have been sown with A. gayanus in Brazil since 1982 (J. E. Ferguson, C. Sere and R. de Andrade, personal communication). Smaller areas have been established in other countries.

scholarly journals Stigma receptivity in Cashew nut (Anacardium occidentale L.)

2020 ◽  
Vol 21 ◽  
pp. 37-39
Author(s):  
Swapan Mandal ◽  
Keyword(s):  
Experimental Study ◽  
Research Centre ◽  
Research Station ◽  
Regional Research ◽  
Stigma Receptivity ◽  
Flower Opening ◽  
Cashew Nut ◽  
Monoecious Plant ◽  
Optimum Period ◽  
And Bisexual

The cashew is widely and commercially cultivated throughout the nation for its nut. Cashew is a polygamo – monoecious plant with both male and bisexual flowers developing in same inflorescence. Experimental study was conducted at Kesiary Cashew Plantation Sector, Medinipur as per the guidelines Regional Research Station, Jhargram and National Research Centre of Cashew, Karnataka (2014 – 2018). Changes in stigma receptivity were studied by over 100 panicles chosen at random taken from the commercially cultivated germplasms (WBDC – 4, Kottakerala – 2/97, Dicherla – 2/9, Vetore – 56 and Ullal – 2). The study was continued as for one day before, on the day of flower opening, one day & two days after flowering. It indicates that one day prior to opening & two days after of flowering, stigma receptivity was maximum in the plants of Vetore – 56. But on the day & one day after of flowering it was highest in Dicherla – 2/9. The optimum period of receptivity was at 12 noon on the day of anthesis.

Island pinto bean

2008 ◽  
Vol 88 (1) ◽  
pp. 161-163 ◽  
Author(s):  
H. -H. Mündel ◽  
F. A. Kiehn ◽  
H. C. Huang ◽  
R. L. Conner ◽  
P. Balasubramanian
Keyword(s):  
Colletotrichum Lindemuthianum ◽  
High Yield ◽  
Research Centre ◽  
Research Station ◽  
Phaseolus Vulgaris L ◽  
Canadian Prairies ◽  
White Mould ◽  
Pinto Bean ◽  
Cultivar Description ◽  
Moderately Resistant

Island is a high-yielding, tall, partially upright pinto bean (Phaseolus vulgaris L.), with short vines and an average seed weight of 38.5 g 100 seeds-1. It was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB, in collaboration with the AAFC Research Station, Morden, MB. Island is well adapted to wide-row irrigated production of the Canadian prairies, with yields exceeding those of Othello, the check cultivar. Island is moderately susceptible, as is Othello, to race 73 of anthracnose [caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib]; and is moderately resistant to white mould [caused by Sclerotinia sclerotiorum (Lib.) de Bary]. Key words: Pinto (bean), cultivar description, high yield

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