scholarly journals Reaction of field cucumber (Cucumis sativus L.) to the delay of agrotechnical dates and phenological phases in Poland

Author(s):  
Robert Kalbarczyk

The aim of the work was to determine a potential decrease in yields and a risk of cultivation of field cucumber of pickling varieties in Poland caused by the delay of the dates: flowering, fruit setting and harvesting. In order to carry out this task the following phenological dates from whole Poland were used: emergence, flowering and fruit setting and also the agrotechnical dates: sowing and harvesting from 28 experimental stations of the Research Centre for Cultivar Testing (COBORU) through 1966–2005. On the basis of linear regression analysis the relation between the yield of field cucumber and the analysed agrotechnical and phenological dates was determined, taking into account the trend of the yield from 1966–2005. Moreover, a potential decrease in the yield caused by the delay of phenophases was calculated for both the whole country and for its particular regions. The measure of matching of the regression function to empirical data was the determination coefficient and the regression equation error. Moreover, to determine the share of each of the selected factors in the prediction of cucumber yield partial correlation analysis was used. The obtained results may be used, among other things, in the meteorological protection of agriculture and improvement of new technologies of cucumber field cultivation.

2009 ◽  
Vol 36 (No. 2) ◽  
pp. 75-83 ◽  
Author(s):  
R. Kalbarczyk

The aim of the work was to determine whether and how the frequently observed trends in air temperature changes affect the dates of phenophases of field cucumber (pickling variety) cultivated in Poland. Completion of the task included gathering of monthly and seasonal data concerning average air temperature in the vegetation seasonn of cucumber collected from 53 stations of the Institute of Meteorology and Water Management and of phenological and agrotechnical dates collected from 28 experimental stations of the Research Centre for Cultivar Testing over 1966–2005 all over Poland. Dependence between the dates of phenological phases and average air temperature, thein trend and the size of the changes for the 40-year research period of 1966–2005 were determined on the basis of a linear regression analysis. Moreover, the generalized cluster analysis was employed to group years, similar in terms of the course of cucumber phenophases: emergence, flowering and fruit setting, together with thermal conditions of air in the period preceding their occurrence. If the current tendencies hold slight acceleration of phenophases: emergence (+1.2 days/10 years), flowering (+1.9 days/10 years), fruit setting (+2.1 days/10 years) and growing acceleration of the dates of harvesting (the beginning by +3.1 days/10 years, and the end by +6.4 days/10 years), it leads to the shortening of the fructification period and it may thus deteriorate conditions for achieving good cucumber yields in Poland.


1990 ◽  
Vol 33 (1) ◽  
pp. 174-180 ◽  
Author(s):  
Judith Rubin-Spitz ◽  
Nancy S. McGarr

Eight deaf children produced each of nine sentences. F 0 measures were obtained at several locations within each utterance (starting F 0 , peak F 0 , peak F 0 in the final syllable, and final F 0 ). The relative timing of each F 0 measure (ms from onset of the utterance) was also determined. In addition, several difference measures were derived. Listeners experienced with the speech of the deaf were asked to judge whether they heard a terminal fall, rise, or a flat final intonation contour in each utterance. A multiple linear regression analysis was used to determine if any combination of the acoustic measures could predict listeners’ responses. The only variable that made a significant contribution to the regression function was the temporal interval between the terminal peak F 0 and the final F 0 . That is, the more slowly the contour fell the more likely listeners were to perceive the contour as flat, regardless of the amount (in Hz or percentage F 0 ) by which it fell. The regression equation accounted for a statistically significant but not large proportion of the total variance. This suggests that other variables, not measured in this study, play an important role in the perception of utterance final intonation contours in the speech of the deaf.


2011 ◽  
pp. 335
Author(s):  
Michel-Yves Essissima

En este trabajo, como suele hacer José Romera Castillo en diversas presentaciones o contribuciones a las actas de congresos que dirige, en algunos números de Signa y otros trabajos, se resume el estado de la cuestión sobre una de las líneas de investigación, centrada en los trasvases culturales (literatura y cine), que se lleva a cabo en el Centro de Investigación de Semiótica Literaria, Teatral y Nuevas Tecnologías de la UNED (SELITEN@T) desde 1992 hasta 2011.This paper, in keeping with José Romera Castillo’s practice in various presentations or contributions to conference the proceedings of which he is editor, to some issues of Signa and others papers, reviews the existing literature in one of the main areas of research, focused on cultural transfers (literature and film), that was carried out at the Research Centre of Literary and Theatrical Semiotics and New Technologies of the UNED (SELITEN@T) from 1992 to 2011.


2004 ◽  
Vol 31 ◽  
pp. 455-461 ◽  
Author(s):  
Kwame Sarpong

Throughout history, libraries and archives have been the guardians of the documentary heritage of mankind. Given the rapid evolution of the new technologies, safeguarding the cultural heritage becomes more and more the concern of specialists. One of the essential goals of archival and library services is to facilitate access to the documents or materials in their care, thus ensuring that that cultural heritage is kept alive and can be an object of research and enrichment. Their other important mission is to preserve the materials in their care so that cultural heritage may be passed on intact to future generations, since the future of a nation, a people, or a community is unthinkable without knowledge of its past. Preservation and access to the collection are the main objectives of the digitization project that was implemented recently in our museum with the help of international organizations and collaborators.One of the main goals of the Gramophone Records Museum and Research Centre of Ghana (GRMRC) is the preservation and the promotion of the nation's musical patrimony. The museum is located in Cape Coast. It is presently situated inside the building of the Centre for National Culture (CNC) just opposite the main gate of the University of Cape Coast. The museum was founded by Kwame Sarpong on the basis of his private collection, spanning over 40 years of music. From the modest beginnings in one small room inside the CNC building, it has grown to occupy an exhibition room, the archives and documentation rooms, and an office.


Author(s):  
Zofija Jankauskienė ◽  
Elvyra Gruzdevienė

In the resent years evaluation and conservation of genetic recourses becomes of great importance. Some of the genotypes could be lost when un-sufficient attention is given to them. Some old (created before WWII) Latvian flax accessions have been investigated at the collection nursery at the Upytė Experimental Station of the Lithuanian Research Centre for Agriculture and Forestry in 2007-2010. Phenological phases, plant height, flower colour, stem, seed and long fibre yield, fibre content and quality (flexibility, strength, quality number), duration of vegetation period, resistance to lodging, etc., have been investigated. The most valuable genotypes have been suggested to be used in further breeding programs.


2017 ◽  
Vol 1 (1) ◽  
pp. 76-87
Author(s):  
Umar Makruf ◽  
Hesti Budiwati

The study aims to knowed influence of bank image and promotion on gamling gendis manis to farming dicision to saving in Lumajang Branch office of BRI. Either partially of simultaneously. This research is quantitative research to find the associative relationship that are causal or the research to ask the question the relations between two or more variable and cause effect relation. The study aims to find evidence of the influence of bank image and promotion on saving decisions of Lumajang Barnch Office of Bank Rakyat Indonesia either partially or simultaneously. This study tested the hypothesis that there is a bank image effect on the saving decisions, there is promotion on saing decisions, and there is the influence of bank image and promotion to work simultaneously on the performance of employees at the National Narcotics Agency office Lumajang. The study, of 45 respondents using multiple linear regression analysis is the bank image there is an influence on saving decisions, there is work promotion on saving decisions, and there is the influence of bank image and promotion to work simultaneously on the decisions of saving at the Lumajang Barnch Office of Bank Rakyat Indonesia. Simple linear regression function generated is Y= 4,096 + 0,345X1 + 0,183X2. The coefficient of determination showed that 53,5 of saving decisions can be explained by the bank image and promotion t, while the remaining 46,5% of saving decisions is influenced by other variables not examined in this study.


2018 ◽  
Vol 112 (4) ◽  
pp. 356-364 ◽  
Author(s):  
Hanna M Kahl ◽  
Alan W Leslie ◽  
Cerruti R R Hooks

Abstract Increasing habitat complexity through cover cropping has been proposed as a tactic to reduce herbivore colonization and encourage natural enemies in cropping systems. To test the supposition that cover crops can be used to alter arthropod communities, we compared arthropod communities on cucumber (Cucumis sativus L.; Cucurbitaceae) interplanted with a red clover (Trifolium pratense L.; Fabaceae) living mulch and grown as a monoculture. In 2016 and 2017, visual surveys and yellow sticky card traps were used to estimate numbers of arthropod natural enemies and herbivores in each treatment. Among herbivores, striped cucumber beetles [Acalymma vittatum (Fabricius, 1775); Coleoptera: Chrysomelidae] and melon aphids (Aphis gossypii Glover, 1877; Hemiptera: Aphididae) had lower densities in the presence of red clover. However, populations of spotted cucumber beetle (Diabrotica undecimpunctata howardi Barber, 1947; Coleoptera: Chrysomelidae) had a variable response to red clover. Sticky card captures of natural enemies, including bigeyed bugs (Geocoris spp. Fallén; Hemiptera: Geocoridae), minute pirate bugs (Orius spp. Wolff; Hemiptera: Anthocoridae), and lady beetles (Coleoptera: Coccinellidae), were generally greater in cucumber interplanted with red clover than monoculture. Overall, cucumber yield did not differ between treatments. Findings from this study lend support to the hypothesis that greater habitat complexity can reduce herbivore densities.


2020 ◽  
Vol 7 (03) ◽  
Author(s):  
L. S. SINGH ◽  
ANOK UCHOI ◽  
S. K. RIZAL ◽  
ALPANA DAS ◽  
GANESH DAS

Knowledge, skill and attitudes are the most important factors affecting socio personal attributes of human resources. ICAR-Central Plantation Crops Research Institute, Research Centre, Kahikuchi, organizes training to develop more skilled workforce. Training of two batches of 50 farmers each on cocoa cultivation and processing technology was conducted for three consecutive days both during 2016 and 2017. The study was done mainly to create awareness and disseminate the new technologies on cocoa and to study their feedback concerning cocoa cultivation and processing technique. Socio personal attributes of the farmers, pre and post evaluation and perception of the trainees are studied to understand the level of change in their knowledge and skill after undergoing training. Majority of the respondent was found to possess positive impact in the development of knowledge and skill on scientific method of cocoa cultivation and processing technique. The study also showed that education qualification and mass media exposure were found to help enhance knowledge and skill of the trainees.


2000 ◽  
Vol 44 (21) ◽  
pp. 3-398-3-401 ◽  
Author(s):  
R.S. Kalawsky ◽  
A. W. Stedmon ◽  
K. Hill ◽  
C.A. Cook

Research into human factors issues surrounding the use of AR technology is very limited, and there is a need for formal guidelines to underpin human factors integration (HFI). The DERA Centre for Human Sciences (CHS) and the Advanced VR Research Centre (AVRRC) at Loughborough University are evaluating the potential of Augmented Reality (AR) for providing operator feedback in an embedded training system. An important aspect of the research is concerned with investigating the cognitive ergonomics of AR technology and human information processing issues that may arise through its use, when information is presented via AR and overlaid upon one or more primary display surfaces such as a visual display unit. Two main issues have been addressed: first, the impact of AR on human information processing; and, second, the most appropriate symbology sets for displaying information via the AR medium. The experiments reported in this paper assess issues of re-accommodation and reaction times to alarms on different display formats, illustrating that AR performs as well as standard display formats.


2017 ◽  
Vol 2 (02) ◽  
pp. 130-135
Author(s):  
V. Singh ◽  
K. N. Shah ◽  
D. K. Rana

Thirteen strains of cucumber (Cucumis sativus L.) were evaluated at Horticultural Research Centre, Department of Horticulture, H.N.B. Garhwal University, Srinagar (Garhwal), Uttarakhand (India) to study the variability, heritability and genetic advance for growth, yield, quality and seed parameters. The analysis of variance revealed highly significant differences for almost all the characters. The perusal of present investigation indicated that the values of phenotypic coefficient of variation (PCV) were higher than the genotypic coefficients of variation (GCV) for all characters studied. The genotypic coefficients of variation and phenotypic coefficients of variation were moderate to low for all the characters except number of nodes bearing first male flower (33.02%, 33.66%). The high magnitude of heritability high estimated genetic advance over mean were found highest for length of fruit (100%, 58.40%), weight of fruit (99%, 39.92%), length of vine (98%, 36.12%), number of seeds per fruit (98%,50.16%), number of nodes per vine (97%, 53.57%), number of fruits per vine (97%, 44.33%), number of nodes bearing first male flower (96%, 66.74%), TSS (96%, 44.25%), calcium content (95%, 21.75%), number of nodes bearing first female flower (94%, 58.36%), duration of harvesting (93%, 36.04%), total fruit yield per vine (92%,35.93%) and diameter of fruit (92%, 35.80%) thus indicating that these characters had additive gene effect and therefore, they are more reliable for effective selection


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