scholarly journals Anthecological features of Lonicera japonica Thunb. in the environments of Southern Uzbekistan

2021 ◽  
Vol 182 (3) ◽  
pp. 159-166
Author(s):  
Kh. K. Djumayev ◽  
K. G. Tkachenko
Keyword(s):  
Urban Communities ◽  
Target Material ◽  
Lonicera Japonica ◽  
Flowering Phase ◽  
Japanese Honeysuckle ◽  
Long Time ◽  
Oil Plant ◽  
Female Phase ◽  
Female Flowering ◽  
Dry Out

Background. Identification of spectacular ornamental perennial lianas for urban landscaping in southern cities is important for modern urban greening programs. The aim of this work was to study flowering peculiarities of Japanese honeysuckle (Lonicera japonica Thunb.).Materials and methods. The target material was honeysuckle plants growing in the environments of Southern Uzbekistan. Observations were conducted in 2019–2020 using conventional approaches.Results and conclusion. The inflorescence of L. japonica is an open dibotryoid, with flowers arranged along the lateral axes of the first order. Flowers are bisexual, zygomorphic. Blossoming of flowers in inflorescences occurs acropetally. The flowering period is almost 150–170 days (starts in April and lasts until the end of August). Dichogamy in the form of proterandry is observed in honeysuckle flowers. The male flowering phase comes the first. It starts 1.5–2.0 hours after the opening of the corolla and ends with the drying of the stamens. The corolla turns yellow 36 hours after the blooming of the flower and the stamens begin to dry out. This is the female phase. Over the next 84 hours, the pistil begins to dry out slowly, but the corolla of the flower lasts up to 96 hours. The duration of the female flowering phase is 60 hours. L. japonica is of considerable interest for vertical landscaping of urban communities. Plants remain ornamental for a long time. Studying this species as an essential oil plant is promising, since it contains a significant amount of germacrene D.

Volatile Constituents from the Flowers of Japanese Honeysuckle (Lonicera japonica)

1996 ◽  
Vol 44 (1) ◽  
pp. 206-209 ◽  
Author(s):  
William S. Schlotzhauer ◽  
Sam D. Pair ◽  
Robert J. Horvat
Keyword(s):  
Lonicera Japonica ◽  
Volatile Constituents ◽  
Japanese Honeysuckle

scholarly journals Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands

Forests ◽  
2012 ◽  
Vol 3 (3) ◽  
pp. 573-590 ◽  
Author(s):  
Hsiao-Hsuan Wang ◽  
Carissa L. Wonkka ◽  
William E. Grant ◽  
William E. Rogers
Keyword(s):  
Range Expansion ◽  
Lonicera Japonica ◽  
Potential Range ◽  
Japanese Honeysuckle

scholarly journals Analysis of Flower Color Variations at Different Developmental Stages in Two Honeysuckle (Lonicera Japonica Thunb.) Cultivars

HortScience ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 779-782 ◽  
Author(s):  
Jianjun Li ◽  
Xiaoya Lian ◽  
Chenglin Ye ◽  
Lan Wang
Keyword(s):  
Chlorophyll Content ◽  
Cross Section ◽  
Molecular Mechanisms ◽  
Developmental Stages ◽  
Flower Color ◽  
Lonicera Japonica ◽  
Carotenoid Content ◽  
Factors Affecting ◽  
Japanese Honeysuckle ◽  
Corolla Color

Lonicera japonica Thunb., known as Japanese honeysuckle or golden-and-silver honeysuckle, belongs to the honeysuckle family and is native to eastern Asia, including China, Japan, and Korea. Microscopy, spectrophotometry, colorimetry, and the Royal Horticulture Society of Colorimetric Card (RHSCC) were used to compare and analyze the pigment distribution, content, and color variations in the Yujin 2 and Damaohua cultivars at different developmental stages. There were notable differences in the corolla color and the cross-section color between different developmental stages and different varieties. The lightness (L*), redness (a*), and yellowness (b*) values were calculated for each period for the two cultivars to observe variation trends. The chlorophyll content in the corollas of both cultivars showed declining trends with different rates. The chlorophyll content decreased rapidly from the young period to the two white period, and changed gradually from the two white period to the golden period. Moreover, the carotenoid content declined slightly from the young period to the silver period and rose sharply during the golden period. The ratio of these two pigment contents increased dramatically during the golden period: by 11.51 and 6.53 times in ‘Yujin 2’ and ‘Damaohua’, respectively. There were significant differences in corolla color, cross-section color, and the content of three pigments between the two varieties of honeysuckle. distribution and variation of pigments were the key factors affecting the flower color of honeysuckle. This study provides a basis for the identification and breeding of honeysuckle varieties and lays a foundation for further studies on the function and molecular mechanisms of pigments.

scholarly journals Strategi Pembelajaran Pendidikan Agama Islam Bagi Siswa Autis Di SLB Putra Idhata Kabupaten Madiun

2020 ◽  
Vol 1 (2) ◽  
pp. 75-86
Author(s):  
Affan Pradikta
Keyword(s):  
Religious Education ◽  
Teaching And Learning ◽  
Case Study Research ◽  
Target Material ◽  
Islamic Education ◽  
Verbal Instructions ◽  
Problems And Solutions ◽  
Long Time ◽  
Thinking Process

This study aims to determine PAI learning and understand the problems and solutions of the application of Islamic Education learning for autism  students at SLB Putra Idhata, Madiun Regency. The research method used is a qualitative approach with the type of case study research and the thinking process uses inductive paragraphs. Data collection techniques using interviews, observation, and documentation. While the data analysis techniques used are data reduction, data presentation, and drawing conclusions. The results showed that: (1) Learning on the autism students was adjusted to the abilities and characteristics of the students. The teaching of Islamic religious education for students on the autism uses the ABA (Applied Behavior Analysis) method. This therapy teaches children on the autism to follow verbal instructions, respond to other people's words, describe an object, imitate other people's words and movements. (2) The main obstacle to learning Islamic education for autism students is the incomplete target material, because students have difficulty concentrating for a long time. So before students can concentrate, instruction cannot be given. The solution is by modifying the material according to the students 'abilities, compiling creative and varied media so as to attract students' interest to concentrate in the teaching and learning process.

Selective Control of Japanese Honeysuckle (Lonicera japonica)

1988 ◽  
Vol 2 (2) ◽  
pp. 139-143 ◽  
Author(s):  
David L. Regehr ◽  
David R. Frey
Keyword(s):  
Fagus Grandifolia ◽  
Lonicera Japonica ◽  
Propanoic Acid ◽  
Scotch Pine ◽  
Presenting Problems ◽  
American Beech ◽  
Selective Control ◽  
Hardwood Species ◽  
Japanese Honeysuckle ◽  
Dichlorophenoxy Acetic Acid

Japanese honeysuckle (Lonicera japonicaThunb. # LONJA) vines can smother young trees, presenting problems in nursery, parkland, and woodlot management. The tardy-deciduous nature of honeysuckle provides an application window for its selective control with glyphosate [N-(phosphonomethyl)-glycine] or dichlorprop [(±)-2-(2,4-dichlorophenoxy)propanoic acid] plus 2,4-D [2,4-dichlorophenoxy)acetic acid] immediately after fall defoliation of hardwood species. Glyphosate at 1.5% v/v (5.4 g ae/L) applied in December killed mature, woody honeysuckle vines and eliminated most regrowth from basal and subterranean buds 28 months after treatment. Dichlorprop plus 2,4-D at 1.5% v/v (3.6 g ae/L of each herbicide), when applied shortly after the first freezing temperatures in October, was as effective as glyphosate but was less effective when applied in December. Tuliptree (Liriodendron tulipiferaL.), American beech (Fagus grandifoliaEhrh.), and Scotch pine (Pinus sylvestrisL.) suffered minimal and temporary injury from these herbicides.

Newts in the nature reserve Dönche: Evaluation of diversity, breeding behaviour and threats due to a decline in habitat suitability

Biologia ◽  
2016 ◽  
Vol 71 (7) ◽  
Author(s):  
Phillip J. Haubrock ◽  
Jan Altrichter
Keyword(s):  
Inner City ◽  
Aquatic Ecosystems ◽  
Small Area ◽  
Nature Reserve ◽  
Early Summer ◽  
Amphibian Species ◽  
Crested Newt ◽  
Long Time ◽  
Dry Out ◽  
Wetland Habitats

AbstractAs the biggest inner city national reserve in Germany, the Dönche in Kassel is characterized by its history and composition of ponds, reeds and varying woodlands. Due to artificial grazing, the structural open landscape with small-area wetland habitats was well preserved. In the last two decades, changes in aquatic ecosystems were becoming more obvious. From originally 400 water filled bomb crater only five are left and while several dry out in late spring or early summer, only three might keep enough water for amphibians to reproduce. After the project group “Amphibien- und Reptilienschutz in Hessen e.v.” (Agar) verified the existence of several amphibian species in the Dönche in 2002, no further detailed inventory on Salamandridae biodiversity and especially the northern crested newt had been conducted. Because of the long time since any latest survey and an obviously changing situation in the water household, we collected information on populations and species diversity for an inventory covering the entire breeding season between March and July. We followed movements of the great crested newt (

Tests on Crepe Soling. III. Water Absorption

1937 ◽  
Vol 10 (3) ◽  
pp. 500-507
Author(s):  
T. H. Messenger ◽  
J. R. Scott
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Direct Evidence ◽  
Pure Water ◽  
Water Soluble ◽  
Solution Viscosity ◽  
Wide Range ◽  
Long Time ◽  
Rate Of Absorption ◽  
Dry Out

Abstract The main results obtained are summarized below: (1) The following observations made by previous workers are confirmed. The absorption by crepe immersed in pure water continues for a very long time, if not indefinitely; the initial rate of absorption and the amount absorbed after long immersion increase rapidly with rise of temperature. The influence of temperature is probably due largely to its effect on the mechanical properties of the rubber, the softening induced by heat facilitating the distension of the rubber. (2) Soling crepes vary enormously in rate of water absorption; this result is ascribable to a variety of causes, as there is direct evidence that water absorption is influenced by the number of plies and the ease of penetration of water between the plies, while the porosity (permeability) of the rubber and its content of water-soluble matter must also come into play; the rigidity of the rubber would be expected to have some influence, although this is not evident in the present experiments. (3) Water absorption does not differentiate sharply between estate and factory-prepared soling crepes, though there are indications that on the average factory crepes absorb water somewhat less rapidly. (4) Among the soling crepes examined, water absorption bears no obvious relationship to mechanical properties or solution viscosity. (5) Addition of solutes to the water in which rubber is immersed reduces the water absorption, and this occurs quantitatively in accordance with the osmotic theory of water absorption. These results indicate that water-absorption tests do not in general yield any information as to the mechanical or physical properties of crepe soling or its mode of manufacture, and are therefore of value only in relation to the water-absorbing properties of the material. Absorption at atmospheric temperatures is so slow that under normal conditions of use it probably does not affect more than a thin surface layer. This layer, however, is responsible for the grip of the soling on the pavement, and if absorption of water influences this gripping power, the control of water-absorbing capacity becomes important. The wide variation at present found between different crepes suggests that an investigation of the factors governing water absorption would enable this property to be closely controlled over a wide range. Penetration of water between the plies, which will occur especially when the soling is somewhat worn, may be more serious than absorption at the outer surface, since water cannot readily dry out from between the plies, and the absorption may therefore become cumulative and lead to weakening of the ply-adhesion.

Sign in / Sign up

Export Citation Format

Share Document