scholarly journals Determination of Some Growth and Development Characteristics Between Birth and Twelve Months Age in Yerli Kara Cattle

2022 ◽  
pp. 33-39
Author(s):  
Çağrı Melikşah SAKAR ◽  
Ugur ZULKADİR
2019 ◽  
Vol 123 ◽  
pp. 70-78 ◽  
Author(s):  
Yingya Zhao ◽  
Yuhan Zhou ◽  
Qingyang Zhu ◽  
Bing Xia ◽  
Wenjuan Ma ◽  
...  

Bragantia ◽  
2011 ◽  
Vol 70 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Leonardo Bianco de Carvalho ◽  
Pedro Luis da Costa Aguiar Alves ◽  
José Valcir Fidelis Martins

Determination of competitive relationships among plant species requires appropriate experimental designs and method of analysis. The hypothesis of this research was that two species growing in coexistence show different growth and development due to their relative competitiveness. This research aims to measure the relative competitiveness of wheat crop compared to Alexandergrass by the interpretation of plant density and proportional effects using replacement series experiments. Monocultures were cultivated in densities of 1, 3, 5, 10 and 15 plants per pot and analyzed by regression of dry mass data. Mixture experiment was cultivated in wheat:Alexandergrass proportions of 0:6, 1:5, 2:4, 3:3, 4:2, 5:1 and 6:0 plants per pot and analyzed by graphical interpretation of growth and production characteristics. Both experiments were carried out in randomized complete block design with four replicates. Alexandergrass was more sensitive to intraspecific competition than wheat. Alexandergrass was lightly more competitive than wheat. Number and weight of spikes and number of tillers were the wheat characteristics more affected by Alexandergrass interference.


2018 ◽  
Vol 66 (2) ◽  
pp. 161 ◽  
Author(s):  
Elaine Cotrim Costa ◽  
Renê Gonçalves da Silva Carneiro ◽  
Juliana Santos Silva ◽  
Rosy Mary dos Santos Isaias

Analyses of gall biology and development allow determination of morphogenesis events in host-plant organs that are altered by galling insects. Currently, we assume that there is a correlation between Lopesia sp. instars and the alterations in gall tissues on Mimosa gemmulata that generate the gall shape. The development of Lopesia sp. (three larval instars, pupae and adult) correlates positively with gall growth, especially on the anticlinal axis. First-instar larvae are found in galls at the stage of induction, Instar 2 in galls at early growth and development, Instar 3 in galls at late growth and development, pupae in galls at maturation, and the adult emerges from senescent galls. At induction, the larva stimulates cell differentiation in pinnula and pinna-rachis tissues on M. gemmulata. At early growth and development stages, cell division and expansion are increased, and non-glandular trichomes assist gall closing. Homogenous parenchyma and neoformed vascular bundles characterise late growth and development. At maturation, tissues are compartmentalised and cells achieve major expansion through elongation. At senescence, galls open by the falling of trichomes, and mechanical and nutritive cells have thickened walls. The neoformed nutritive tissue nurtures the developing Lopesia sp., whose feeding behaviour influences the direction of cell elongation, predominantly periclinal, determinant for gall bivalve shape.


1988 ◽  
Vol 32 (1) ◽  
pp. 95-111
Author(s):  
S. Y. Bimpong-Buta

The functioning of society is considerably aided by legal rules and social norms. The extent, scope and complexity of such laws and norms are determined in the final analysis by the level of socio-economic activity, growth and development. Corresponding economic and social institutions of an administrative nature tend to evolve and become intertwined with such developments. In order to cope with increasing responsibilities, a government may establish statutory bodies to deal with certain aspects of governmental activity of a quasi-judicial nature.In developing countries such as Ghana, therefore, one often finds in the Statute books enactments conferring certain powers on quasi-judicial bodies. In Ghana, powers are conferred on such bodies to carry out investigations and make findings of fact concerning such matters as chieftaincy disputes, the determination of boundaries between two communities, the settlement of trade disputes, etc. Perhaps, recognising the limitations of such bodies, the decisions based on the facts found by such bodies do not usually become binding on the persons or the institutions to be affected in die same way as die decisions of the regular courts do. To become binding, the law usually provides that two conditions are satisfied:(i) The findings or decisions must be confirmed by the executive or the minister acting in that behalf; and(ii) they must be published in an official gazette, bulletin or in any such official publication.


1912 ◽  
Vol 3 (4) ◽  
pp. 343-354 ◽  
Author(s):  
J. dewitz

The progress of applied Entomology is mainly visible in the discovery of practical means for the destruction of insects injurious to cultivated plants, and in the minute determination of the various stages of the growth and development of such insects. More recently the parasites of insect pests, both of vegetable and animal origin, have also largely attracted attention. But physiological research, so far as injurious insects are concerned, has almost entirely been overlooked and neglected; although this line of enquiry affords obvious opportunities for arriving at tbe very essence of the whole matter, and should indeed be made one of the main starting points in the study of insect pests.


2020 ◽  
pp. 171-178
Author(s):  
Evgeniy Nikolayevich Sechin ◽  
Oleg Anatolyevich Marakaev ◽  
Gavriil Borisovich Gavrilov

For the first time, the phytosterol state of the underground and aboveground organs of the tuberoid species of the orchid Dactylorhiza maculata (L.) Soó (Orchidaceae), which grows in the natural conditions of the Central European part of Russia, was studied using gas chromatography with a mass spectrometric detector. The plant material contains cycloartenol, cycloeukalenol, campesterol, brassicasterin, β-sitosterol, stigmasterol and ergosterol, which was found in underground organs and belong to mycosymbiont. The ergosterol content in the adventitious roots is five times higher compared to the endings of stem root tuberoids. The phytosterols content of the aboveground organs of D. maculata is more diverse than that of the underground organs. The basic sterol of D. maculata is β-sitosterol (60%), which is present in all organs. Also a high amount was noted for cycloartenol (20%), which is absent in the stem. Cycloeukalenol (7%) was found in inflorescences and leaves, campesterol (2%) in inflorescences, brassicasterin (5%) in the adventitious roots, stigmasterol (5%) in the leaves. Differences in the sterol statuses of organs can be explained by the biochemical characteristics of their tissues and the uneven functional significance of the identified compounds for the growth and development of generative individuals of D. maculata in the budding phase. The results obtained indicate the diversity of phytosterol compounds and their uneven content in various organs of the studied plant object.


2021 ◽  
Vol 11 (1) ◽  
pp. 20-28
Author(s):  
Milena Cvjetković ◽  
Marko Vasiljević ◽  
Milovan Cvjetković ◽  
Milica Josimović

In an immense market struggle, the only effective way to build a long-term competitive advantage is to provide a high level of quality. Offering quality to the market, the organization creates loyal consumers on the basis of which it achieves its profitability, growth and development. The research presented in this paper is aimed at determination of the impact of quality on improving business performance and customer satisfaction. Correlation analysis confirmed this influence on the basis of obtained statistically significant mutual relations between the analyzed variables. Quality was shown to have an impact on improving the business performance of the organization, primarily on profitability through the improvement of leadership and relationship management. The impact of quality on customer satisfaction was also confirmed, where the engagement of people and the management of mutual relations had the greatest impact on consumer confidence. The research confirmed that the training of employees in terms of quality had a statistically significant impact on improving customer satisfaction, if it is conducted in an efficient manner.


1998 ◽  
Vol 25 (7) ◽  
pp. 815 ◽  
Author(s):  
James A. Campbell ◽  
Michael J. Robertson ◽  
Christopher P. L. Grof

Plants of the Australian commercial sugarcane varieties Q117 and Q138 were grown to 6 months age in a controlled environment at temperatures of 14, 18, 22 and 26˚C. The rate of node appearance, which equates to the rate of leaf appearance, was significantly correlated with temperature across the temperature range examined. Analysis of the varietal rates of node deposition as a function of time allowed determination of both base temperature for node (hence leaf) appearance and phyllochron. The base temperatures for node appearance were 7.8˚C for Q117 and 7.6˚C for Q138, significantly lower than previously published base temperatures for leaf appearance in sugarcane. During the developmental stages covered by this study, phyllochron differed between the two varieties with Q117 requiring 108.7˚Cd per node, whilst Q138 required 126.6˚Cd per node. This work reinforces the value of controlled environment research as a way of elucidating basic functions of plant growth and development.


Author(s):  
Behnam Taidi ◽  
Guillaume Lebernede ◽  
Lothar Koch ◽  
Patrick Perre ◽  
Boris Chichkov

Laser Induced Forward Transfer (LIFT) bio-printing is one of a group of techniques that have been so far largely applied for printing mammalian cells. Bio-printing allows precise placement of viable cells in a defined matrix with the aim of directed three-dimensional development of tissues. In this study, laser bio-printing is used to precisely place eukaryotic microorganisms in specific patterns that allow growth and microscopic observation of the organisms micro-colonies. Saccharomyces cerevisiae var. bayanus and Chlorella vulgaris are used as model organisms for this purpose. Growth and development of the micro-colonies are studied by confocal microscopy and the colonies growth rates are determined by image analysis. The developed protocols for printing of microorganisms and growth-rates determination of the micro-colonies, are very promising for future studies of colony growth and development.


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