scholarly journals MORPHOLOGICAL CHARACTERISTICS AND BIOECOLOGICAL PECULIARITIES OF DEVELOPMENT OF TUTA ABSOLUTA POVOLNY (LEPEDOPTERA:GELECHIIDAE) UNDER LABORATORY CONDITIONS

REPORTS ◽  
2021 ◽  
Vol 335 (1) ◽  
pp. 111-118
Author(s):  
А.К. Alimbekova ◽  
B.А. Duisembekov ◽  
K.R. Khidirov ◽  
A.M. Chadinova ◽  
A.I. Zhumadulayeva
Keyword(s):  
Life Expectancy ◽  
Air Temperature ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Tuta Absoluta ◽  
Dangerous Object ◽  
Laboratory Conditions ◽  
Dark Green ◽  
Light Green

The article provides data on the determination of morphological features and bioecological features of the development of a particularly dangerous object Tuta absoluta (Povlony) in laboratory and greenhouse conditions. In greenhouses and laboratory conditions, the imago begins to actively mate 3-4 hours before sunrise. In laboratory conditions, females lay eggs on the surface of leaves (35%), below (45%), stems (15%), fruit leaves (5%), but the fruit was not laid. After hatching from the eggs, the larvae chew through the entrance to the mesoderm of the leaf and penetrate for 5 minutes. The Larva Of T. absoluta is almost cylindrical in shape, with a distinct head, three pairs of pectoral legs, and five pairs of ventral pseudopods. After completing all five stages of development, the larvae emerge from the mine, and sometimes pupate there. Before pupation, the larva changes its color from dark green to light green. The pupa of the tomato moth, as in other Lepidoptera, is of the “obtecto " type, that is, with the future appendages of adults. It has the shape of a cone 4.5-5 mm long and 1.3-1.5 mm wide, greenish in color, turning to a more intense brown, and at the end of development becomes brown. In the population, females predominate over males. At a temperature of 15°C and 33°C the ratio of female to female life expectancy varies. The higher the air temperature, the more females predominate in the population.

The life expectancy of ukrainian brown dairy breed cows depending on linear estimation of the udder morphological characteristics

2020 ◽  
pp. 29-38
Author(s):  
L. Khmelnychyі ◽  
V. Vechorka ◽  
S. Khmelnychyi
Keyword(s):  
Life Expectancy ◽  
Dairy Cattle ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Milk Productivity ◽  
Linear Type ◽  
Type Traits ◽  
The Impact ◽  
Descriptive Method ◽  
Dairy Breed

The Estimation of dairy cattle cows by morphological characteristics of the udder is an important element in the system of linear classifi cation of dairy cattle. This is due to the existence of a correlation between the linear characteristics of the udder and indicators of milk productivity and longevity of cows. Studies on the impact of assessing the linear characteristics of the exterior on the life expectancy of dairy cows are motivated and relevant. The exterior type of fi rst-born cows was evaluated according to the method of linear classifi cation in the leading farms of Sumy region for breeding Ukrainian brown dairy breed. According to the descriptive method of the 9-point scale, the fi ve most important morphological features of the udder in terms of selection and technological signifi cance were studied. They are:an anterior attachment, posterior attachment height, central ligament, udder depth and anterior teat location. The signifi cant infl uence of udder morphological features on the life expectancy of cows was established. Each of the evaluated linear traits aff ects the life expectancy of a cow with diff erent relative variability of estimates within a particular sex. As for the evaluating of the anterior attachment of the udder, the diff erence between the cows, rated at 1 and 8 points, was 681 days (P <0.001). The diff erence between the low (1 point) score for the height of the attachment of the udder at the back and the highest (9 points) was 610 days (P <0.001). Animals (17.3%) with a grade for the condition of the central ligament of the udder below average (1–4 points) were used from 2436 to 2156 days. Meanwhile, cows with the highest score of 9 points diff ered in longevity – 2786 days, exceeding cows with scores of 1–4 points by 350–630 days (P <0.001). Cows with the highest udder relatively to the hocks, with a score of 8, have the diff erence in life expectancy 597 days (P <0.001), compared to animals with the most lowered udder. Cows with a score for the location of the front teats had 5 points and lived longer by 156–484 days (P <0.001), compared with cows with a score of 1–4 points. Key words: Ukrainian brown dairy breed, udder, linear type traits, life expectancy.

Leptochelia Vatulelensis (Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western Pacific

2011 ◽  
Vol 54 (2) ◽  
pp. 351-363
Author(s):  
Modest Guţu ◽  
Thomas Iliffe
Keyword(s):  
New Species ◽  
New Caledonia ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Western Pacific ◽  
Small Islands ◽  
The South ◽  
Anchialine Caves ◽  
A New Species

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.

EVALUATION OF THE COMMON HOP VARIETY SAMPLES ACCORDING TO THE PHENOLOGICAL AND MORPHOLOGICAL FEATURES

2018 ◽  
pp. 40-42 ◽  
Author(s):  
А. А. Fadeev ◽  
Z. А. Nikonova
Keyword(s):  
Morphological Characteristics ◽  
Economic Importance ◽  
Morphological Features ◽  
High Yield ◽  
Early Maturity ◽  
Foreign Countries ◽  
Humulus Lupulus L ◽  
The Common ◽  
Regions Of Russia ◽  
Vegetative Season

The results of study of the 12 year cycle of studies on the only in Russia collection of hops ordinary (Humulus lupulus L.), which contains 250 samples from different regions of Russia and 17 foreign countries. The number of process varieties, composition and origin, it is unique and corresponds to world level. A collection of accessions of hops is a population of female plants with a set of phenological, morphological and economic importance of signs. In the article, the estimation of the collectible varieties of hops at different ripeness groups according to phenological and morphological characteristics according to the method of test for distinctness, uniformity and stability. As the result of the research the Common Hop (Humuluslupulus) sorts were classified in accordance with their maturity time as early maturity (less than 100 days) – 10%, middle-early (101…110 days) – 14, middle duration (111…120 days) – 40, middle-late (121…130 days) – 10% and slow-maturing (more than 130 days) – 26%. Each group has a phenotypic and morphologies features. The early maturity, middle-early and middle duration varieties with vegetative season approximately 120 days are more adaptive to the conditions of the Chuvashia and central part of the Russia and provide obtaining high yield of the hop cones.

Determination of cores electrification during the flow in the modified Wurster apparatus

2016 ◽  
Vol 1 (20) ◽  
pp. 5-15
Author(s):  
Wojciech Ludwig ◽  
Tadeusz Mączka
Keyword(s):  
Measurement System ◽  
Charge Accumulation ◽  
Laboratory Conditions ◽  
Pharmaceutical Materials

The purpose of this paper was presentation of the value of cores electrification during their flow in the modified Wurster apparatus, applied for dry encapsulation of pharmaceutical materials. Previous works of the authors dealt with vulnerability of the particles of different diameter, produced by SYNTAPHARM (Cellets 1000, 700 and 100) on electrification in laboratory conditions. The presented work gives the results of examination on particles electrification in real conditions of their stable circulation in a column. The measurement system, that was applied, allowed determination of electrification potential and electrification current. Those quantities, which are the measures of charge accumulation on cores were determined for several particles (Cellets 1000, 700 and 500) with the different humidity, for different mass of the bed and spouting gas velocities.

scholarly journals Characterization of a new natural fiber extracted from Corypha taliera fruit

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Taslima Ahmed Tamanna ◽  
Shah Alimuzzaman Belal ◽  
Mohammad Abul Hasan Shibly ◽  
Ayub Nabi Khan
Keyword(s):  
Tensile Strength ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Morphological Characteristics ◽  
Synthetic Fiber ◽  
X Ray Diffraction ◽  
Reinforced Composite ◽  
Potential Alternative

AbstractThis study deals with the determination of new natural fibers extracted from the Corypha taliera fruit (CTF) and its characteristics were reported for the potential alternative of harmful synthetic fiber. The physical, chemical, mechanical, thermal, and morphological characteristics were investigated for CTF fibers. X-ray diffraction and chemical composition characterization ensured a higher amount of cellulose (55.1 wt%) content and crystallinity (62.5%) in the CTF fiber. The FTIR analysis ensured the different functional groups of cellulose, hemicellulose, and lignin present in the fiber. The Scherrer’s equation was used to determine crystallite size 1.45 nm. The mean diameter, specific density, and linear density of the CTF fiber were found (average) 131 μm, 0.86 g/cc, and 43 Tex, respectively. The maximum tensile strength was obtained 53.55 MPa for GL 20 mm and Young’s modulus 572.21 MPa for GL 30 mm. The required energy at break was recorded during the tensile strength experiment from the tensile strength tester and the average values for GL 20 mm and GL 30 mm are 0.05381 J and 0.08968 J, respectively. The thermal analysis ensured the thermal sustainability of CTF fiber up to 230 °C. Entirely the aforementioned outcomes ensured that the new CTF fiber is the expected reinforcement to the fiber-reinforced composite materials.

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