The relationship between plant acceptability and suitability for survival and development of the polyphagous grasshopper,Schistocerca americana (Orthoptera: Acrididae)

1994 ◽  
Vol 7 (4) ◽  
pp. 411-431 ◽  
Author(s):  
R. F. Chapman ◽  
G. A. Sword
Keyword(s):  
Schistocerca Americana ◽  
Survival And Development ◽  
The Relationship ◽  
Plant Acceptability

Study on Technological Innovation Model of High-Tech Manufacturing Enterprise

2013 ◽  
Vol 584 ◽  
pp. 303-306
Author(s):  
Ming Lin Zhang ◽  
Rong Hua Zhou
Keyword(s):  
Qualitative Analysis ◽  
Empirical Research ◽  
Technological Innovation ◽  
High Technology ◽  
High Tech ◽  
Manufacturing Enterprise ◽  
Survival And Development ◽  
Innovation Model ◽  
Innovation Mode ◽  
The Relationship

High-tech enterprises are established on the basis of high technology, technological innovation is the premise of survival and development of high-tech enterprises. In this paper, it summarizes the academic situation of technological innovation mode. At present, the research on the definition and characteristics of high-tech enterprises, technological innovation and technological innovation mode are mature, but in some other aspects the research is insufficient. For example, research on the relationship between high-tech enterprises and different innovation mode. Also, scholars focus on qualitative analysis, and seldom do quantitative empirical research.

scholarly journals Attribution Des Noms Et Pratiques En Santé Materno-Infantile : Approche Socio-Anthropologique Des Enfants Sacrés En Pays Abouré Et Baoulé De Cote d’Ivoire

2017 ◽  
Vol 13 (11) ◽  
pp. 182
Author(s):  
Sylvie N’Goran ◽  
Maxime Oga
Keyword(s):  
Child Health ◽  
Data Collection ◽  
Cultural Identity ◽  
Significant Influence ◽  
Cultural Practices ◽  
Traditional Practices ◽  
Cultural Group ◽  
Survival And Development ◽  
The Relationship ◽  
Pratiques En Santé

The birth of a child is considered as a joyous event and comes along with celebrations and festivities according to the tradition of each cultural group. The name given to the new-born may be that of a living grandparent, one of the parents, or a friend of the child’s father. However, the name given may also be related to the birth order. The birth of a child, who is a fragile and vulnerable being, gives rise to indispensable rituals that takes into account its rank. These rituals are not only for its survival and development, but also for its socialization and the transformation of its identity. Tradition also involves cultural identity through name assigning in order to protect the child from all kinds of diseases. Moreover, traditional practices regarding the issue of child health serves as forms of protection, humanization, and integration of the child into the society. What about the Aboure and N’Zipkly people? From a comprehensive perspective on the specificity of the names given from birth, this study aims to grasp the plausible influences on child health based on the relationships between the child and his name as perceived by the Abouré and N’Zipkly people. To achieve this, we asked ourselves the following questions: Why does a name has a significant influence on the health of the newborn? What is the relationship between child health and name? What are the socio-cultural practices of sacred children? Furthermore, there were various questions that led to data collection by observing activities and practices related to sacred children. The data collection was done using interview guides for mothers with children aged 0 to 5 years, grandparents, and traditional therapists.

scholarly journals Structural, production and dynamic characteristics of the strict forest reserve “Racanska sljivovica“ on mt. Tara

2011 ◽  
pp. 93-114 ◽  
Author(s):  
Damjan Pantic ◽  
Milan Medarevic ◽  
Stanisa Bankovic ◽  
Snezana Obradovic ◽  
Biljana Sljukic ◽  
...  
Keyword(s):  
Forest Structure ◽  
Statistical Processing ◽  
Silver Fir ◽  
Forest Reserve ◽  
Stand Volume ◽  
High Productivity ◽  
Growing Stock ◽  
Dead Trees ◽  
Survival And Development ◽  
The Relationship

Mixed forests of broadleaves and conifers, thanks to their high productivity and high biodiversity, are the most valuable part of the growing stock in Serbia. The aim of this research was to analyze the mixed old-growth forests of fir, spruce and beech in the reserve ?Racanska Sljivovica? so as to define the laws which could be applied in the future forest management on Mt. Tara. The research was based on the data of six periodic complete inventories followed by standard dendrometric and statistical processing. Forest structure was similar to the typical selection structure. The recruitment dynamics (except beech) was relatively favourable, with the ratio to dead trees amounting to 1.72. The number of trees and the volume increased constantly, attaining 422.2 trees?ha-1, i.e. 800.3 m3?ha-1, and the volume increment was above 12 m3?ha-1, despite a slight drop. Silver fir was the protagonist of the selection structure and productivity. It is necessary to stimulate the survival and development of beech at the concrete site, to examine the balanced number of trees and volume, and to investigate the relationship between the number of recruited trees and the stand volume.

scholarly journals The relationship between body mass and elemental composition in nymphs of the grasshopper Schistocerca americana

2008 ◽  
Vol 17 (2) ◽  
pp. 307-313 ◽  
Author(s):  
Andrew W. Boswell ◽  
Tony Provin ◽  
Spencer T. Behmer
Keyword(s):  
Elemental Composition ◽  
Body Mass ◽  
Schistocerca Americana ◽  
The Relationship

scholarly journals Height and number of shoots on the survival and development of micropropagated bamboo plantlets during pre-acclimatization

2019 ◽  
Vol 49 ◽  
Author(s):  
Paulo Arthur Almeida do Vale ◽  
João Bosco de Oliveira Júnior ◽  
Frederico Henrique da Silva Costa ◽  
Jonny Everson Scherwinski-Pereira
Keyword(s):  
Survival Rates ◽  
Biomass Accumulation ◽  
Dry Mass ◽  
Ex Vitro ◽  
In Vitro Multiplication ◽  
Dry Biomass ◽  
Survival And Development ◽  
Ex Vitro Growth ◽  
The Relationship

ABSTRACT During the in vitro multiplication of bamboo plantlets, it is common the formation of shoots aggregates. Once individualized, these can yield a greater number of plantlets than if planted in clusters. This study aimed to evaluate the effect of the relationship between height and number of initial shoots in micropropagated bamboo plantlets on the survival and development of plants, during the pre-acclimatization stage. Guadua aff. chaparensis shoots, after successive subcultures of in vitro multiplication, were classified into three height classes (2.5-5.0 cm; 5.1-10.0 cm; 10.1-15.0 cm) and number of aggregate shoots (one shoot per plantlet/single-stem plantlet, two and three shoots per plantlet) and pre-acclimatized in a commercial substrate composition plus washed sand. The plantlets were evaluated for survival, height, number of new shoots and roots, shoot and root fresh and dry mass. In plantlets from micropropagation, the plant height does not influence the survival rates, being acclimatized preferably at heights between 5.0 cm and 15.0 cm, with survival rates of up to 97 %. Plantlets with height starting at 5.1 cm and composed of 2 or 3 initial shoots show a greater vigor and ex vitro growth, a fact evidenced by the higher values obtained in relation to height and emission of new shoots and roots, as well as a greater fresh and dry biomass accumulation.

scholarly journals Effects of Temperature and Relative Humidity on the Embryonic Development of Hypera postica Gyllenhal (Col.: Curculionidae)

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 250
Author(s):  
Alexandre Levi-Mourao ◽  
Filipe Madeira ◽  
Roberto Meseguer ◽  
Addy García ◽  
Xavier Pons
Keyword(s):  
Relative Humidity ◽  
Developmental Time ◽  
Hypera Postica ◽  
Survival And Development ◽  
Spanish Populations ◽  
Larval Emergence ◽  
Effects Of Temperature ◽  
The Relationship ◽  
Eggs And Larvae ◽  
Development Threshold

The combined effect of the temperature and relative humidity on the survival and development time of the eggs of Spanish populations of the weevil Hypera postica, a key pest of alfalfa around the world, was evaluated under laboratory conditions. The experimental temperatures ranged from 8 to 36 °C, in 4 °C increments. Three relative humidity ranges were defined: high, medium, and low. Eggs of the alfalfa weevil successfully developed until larval emergence at all of the 24 conditions tested. However, the temperature and relative humidity affected the survival of the eggs. The egg developmental time decreased as the temperature increased from 8 to 32 °C, and the longest time was recorded at a low relative humidity (RH). The relationship between the development rate and temperature fit well to the lineal model for relative humidity. The minimum development threshold (T0) and the thermal requirement for egg development (K) ranged between 3 and 4 °C and 209 and 246 degree-days, respectively. According to these values and the occurrence of eggs and larvae (in winter) and adults (in autumn) in field samplings, the period of oviposition was determined. The results of the study contribute to better understanding the annual cycle and phenology of H. postica in the Iberian Peninsula and southern Europe.

scholarly journals Trade-off Analysis between the Indexes of Cultivated Land Health Evaluation

2018 ◽  
Vol 227 ◽  
pp. 03001
Author(s):  
Mei Shan ◽  
Xun Wang
Keyword(s):  
Health Evaluation ◽  
Human Society ◽  
Cultivated Land ◽  
Maximum Benefit ◽  
Survival And Development ◽  
Southern City ◽  
Current Utilization ◽  
Constituent Elements ◽  
The Relationship ◽  
Land Health

Cultivated land is the basis for the survival and development of human society. The selective utilization of human factors and the level of utilization are the decisive factors to promote the external performance of cultivated land. The quality components of cultivated land in different regions have their own characteristics, and the external performance is different. This paper analyzed the China southern city of major grain producing areas of cultivated land within the health influence of constituent elements and characteristics of the relationship between each other, there are dominant factors to find the current utilization level under the influence of the external manifestations of the health of cultivated land, but also conducive to the area of cultivated land ecological function of human selective use, finally get maximum benefit of land use, the best function cultivated land.

The relationship between pasture herbage and the development and survival of the free-living stages of Oesophagostomum dentatum

1981 ◽  
Vol 55 (2) ◽  
pp. 109-113 ◽  
Author(s):  
J. H. Rose ◽  
A. J. Small
Keyword(s):  
Free Living ◽  
Oesophagostomum Dentatum ◽  
Significant Difference ◽  
Survival And Development ◽  
Wet Weather ◽  
Favourable Environment ◽  
The Relationship

ABSTRACTPlots of pastureland with well grown herbage provided a more favourable environment for the survival and development of the free-living stages of Oesophagostomum dentatum in faeces during warm dry weather than did plots with short herbage. This was because well grown herbage gave better protection against the unfavourable effects of dryness than did short herbage. There was no significant difference between the plots during cool wet weather.

scholarly journals Correlation between nematode and soil properties on some pepper-cultivated areas in Gia Lai province

2020 ◽  
Vol 19 (02) ◽  
pp. 69-78
Author(s):  
Tuan Q. Le
Keyword(s):  
Organic Matter ◽  
Ph Value ◽  
Organic Matter Content ◽  
Secondary Data ◽  
Quality Parameters ◽  
Matter Content ◽  
Soil Organic Matter Content ◽  
Nutrient Contents ◽  
Survival And Development ◽  
The Relationship

The research aimed to understand the soil structure for pepper agriculture, the relationship between nematodes distribution and some soil quality parameters. Secondary data collection, field survey, and soil sampling and analysis were conducted in field and in laboratory. The results showed that the soil had pH values ranging from acid to neutral, average N and P levels, and high organic matter content. The isolation of nematodes showed that there were 26 genera of nematodes belonging to 17 families and 7 orders in soil. The lower the soil organic matter content and pH value were, the higher the density of nematodes was, indicating the possibility of survival and development of nematodes in extreme soil environment. This is one of significant factors that may impact the pepper productivity. Therefore, increasing nutrient contents of soil would prevent nematode activities and at the same time enhance the resistance of pepper to nematodes.

Sign in / Sign up

Export Citation Format

Share Document