scholarly journals Reproductive biology of the plants from Aloaceae family in the greenhouse

2019 ◽  
Vol 79 (3) ◽  
pp. 85-90
Author(s):  
M. Gaidarzhy
Keyword(s):  
Reproductive Biology ◽  
Botanical Garden ◽  
Summer Period ◽  
Protective Function ◽  
Red Lists ◽  
Self Pollination ◽  
The Family ◽  
Single Flower ◽  
Three Stages ◽  
Succulent Plants

The article presents the results of the study of the reproductive biology of succulent plants of the Aloaceae family in the introduction. Representatives of the family are part of the collection of succulent plants of the O.V. Fomin Botanical Garden,which contains over 190 species, subspecies and hybrids of plants of three genera: Aloe Linne – 86, Haworthia Duval – 74, Gasteria Duval – 23 taxa. In addition, x Gasteraloe Guillaumin (Gasteria x Aloe), x Gasterhaworthia Guillaumin (Gasteria x Haworthia), x Astroworthia G.D Rowley (AstrolobaUitewaal x Haworthia). Most plant species are included in the international red lists. In the process of forming this part of the collection, the morphology of flowers, inflorescences and seeds was investigated, phenological observations of flowering and fruiting were conducted, methods of vegetative and seed reproduction of family members were developed. Phenological observations have shown that the main flowering period is the spring summer period, but Aloe under greenhouse conditions is characterized by two more peaks (August, December). We have found that, in addition to simple or complex tics, in the vast majority of species, Aloe haworthioides is characterized by inflorescences of ears; perianth shaped tubular or cylindrical, inherent in the vast majority of species and performs, in our opinion, a protective function. The flowering of a single flower takes place in three stages, providing a self-pollination effect that is characteristic of crop conditions only for certain Aloe species, and the viability of the pollen is closely related to the ambient temperature. Freshly harvested seeds obtained by self-pollination or cross-pollination have a sufficiently large germination, but if stored in any way after three months, the germination increases. We have proposed a method of increasing the viability of seeds of plants of the Aloaceae family 2.5-3 times and developed a method of vegetative propagation of representatives of the genera Haworthia and Gasteria leaf cuttings.

Self-compatibility, autonomous self-pollination, and insect-mediated pollination in the clonal species Iris versicolor

1993 ◽  
Vol 71 (11) ◽  
pp. 1503-1509 ◽  
Author(s):  
Paul Kron ◽  
Steven C. Stewart ◽  
Allison Back
Keyword(s):  
Reproductive Biology ◽  
Fruit Set ◽  
Pollen Grains ◽  
Clonal Plants ◽  
Pollinator Behaviour ◽  
Self Pollination ◽  
Self Compatibility ◽  
Three Stages ◽  
Pass Through ◽  
Clonal Species

In clonal species, sexual and asexual systems interact to create a hierarchy of reproduction. For example, self-pollination can occur within pollination units, flowers, ramets, or clones. We investigated the reproductive biology of a natural population of Iris versicolor using pollination manipulations and observations of pollinator behaviour. We found that (i) individuals were completely self-compatible, (ii) selfing rates were close to 100%, (iii) autonomous self-pollination can occur through stigma–anther contact or wind action, (iv) most seed and fruit set can be accounted for by insect pollination, and (v) facilitated self-pollination likely occurs because pollinators frequently visit more than one pollination unit within a flower. Our observations showed that flowers pass through three stages: (i) a male stage (in which pollen is freely available, but stigmas are inaccessible, preventing autogamy); (ii) a female stage (in which stigma flaps have reflexed and are receptive, but pollinators may have already removed most pollen grains, structuring opportunities for geitonogamy); and (iii) a strongly autogamous stage (in which stigma flaps have curled back to contact anthers, leading to delayed autonomous self-pollination). This hierarchy of relatedness among mates determines the genetic consequences of vegetative and sexual reproduction in clonal plants and influences their evolution. Key words: Iris, self-incompatibility, reproductive biology, clonal, pollination.

scholarly journals The Introduction of Greenhouse Plants in the “Al. Ciubotaru” National Botanical Garden (Institute)

2021 ◽  
Vol XII (2(21)) ◽  
Author(s):  
Valentina Timbali ◽  
◽  
◽  
Keyword(s):  
Gene Pool ◽  
Botanical Garden ◽  
Tropical Plants ◽  
The Family ◽  
Succulent Plants

The “Greenhouse Plants” Laboratory was founded in 1983 according to the Decision of the Presidium of the ASM. For about 50 years, in the “Al. Ciubotaru” National Botanical Garden (I), the collection of tropical, subtropical and succulent plants was developed so that by the end of 2020 it counted 3069 taxa, belonging to 133 families and 589 genera. The gene pool includes representatives of the phyla Psilotophyta, Lycopodiophyta, Polypodyophyta, Pinophyta, Cycadophyta and Magnolyophyta, with the classes Magnoliopsida and Liliopsida. The collection of succulents is the largest – about 1700 taxa (including the family Cactaceae with 1009 taxa), the group of subtropical plants consists of 505 taxa and tropical plants 857 taxa.

PHENOLOGY, REPRODUCTIVE BIOLOGY AND SPATIAL DISTRIBUTION OF Chresta scapigera (LESS.) Gardner (ASTERACEAE)

2021 ◽  
Vol 25 (03) ◽  
pp. 710-721
Author(s):  
Écio Souza Diniz ◽  
◽  
Rodolfo Oliveira Costa ◽  
Larissa Areal Carvalho Müller ◽  
Jan Thiele ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Reproductive Biology ◽  
Floral Biology ◽  
The Self ◽  
Climatic Variables ◽  
Campo Rupestre ◽  
Climatic Data ◽  
Monthly Precipitation ◽  
Leaf Emergence ◽  
Self Pollination

Chrestas capigera (Less.) Gardner is an important medicinal herb which, however, has been poorly studied for its biology and ecology. This study aimed to investigate its phenology, floral biology, reproductive biology (self-pollination tests), spatial distribution and correlations between phenophases and climatic data in two sites (Cerrado stricto sensu and Campo rupestre) in southern Minas Gerais, Brazil. From August of 2012 to August of 2013, we monitored phenophase occurrence for 70 individuals: emission of new leaves, flowering, production of immature fruits, and mature fruits. Floral anthesis occurred during daytime and remained all day until fruit formation. Peak leaf emergence was observed in April, correlating with minimum monthly temperature and mean monthly precipitation. Flowering and green fruit peaked in May and June, respectively, and correlated negatively with all climatic variables. Mature fruits peaked in June, but did not correlate significantly with any of the climatic variables. However, no difference was found between the two sites regarding the timing of phenophases. The spatial distribution pattern of individuals within sites was random. The self-pollination tests showed that the individuals pollinated and fertilized themselves. Our findings allow us to conclude that the phenology of C. scapigera has pronounced phenological seasonality with reproductive peak activities in the drier and colder season, which is congruent with the self-pollination and anemochoric dispersion strategy.

scholarly journals Policy on Reducing Child Labor as the Elimination of the Worst Forms of Child Labor

2020 ◽  
Vol 6 (1) ◽  
pp. 1-20
Author(s):  
Errika Putri Anggriani
Keyword(s):  
Economic Development ◽  
Child Labor ◽  
Additional Data ◽  
School Age ◽  
Government Service ◽  
Complex Issue ◽  
The Family ◽  
Scholarship Program ◽  
Three Stages ◽  
The Government

The more complex issue of child labor now a days because many children work at school age. Child labor vulnerable to be exploitated, doing hazardous work, mor a land psychological, and hampered to access education. So the government issued a policy Reduction of Child Labour in order to Support the Family Hope Program (PPA-PKH) as efforts to Elimination of the Worst Forms of Child (PBPTA) in order for the child can be returned in the educational unit, Pemalang is one of the districts that run the program PPA -PKH. Problems examined: (1) Implementation of PPA-PKH asefforts of PBPTA in Pemalang (2) Obstacles and over coming obstacles in the implementation of PPA-PKH policiesas PBPTA efforts in Pemalang. This study using sociological juridical approach. Results of the study (1) Implementation of policies PPA-PKH in Pemalang has been run in accordance with the purpose, with the establishment of shelters through three stages: pre shelter, the implementation in the shelter, and after the implementation form shelter and get a recommendation schools (2) Efforts to overcome the obstacles in the implementation of PPA -PKH policies in Pemalang which includes the beneficiaries of data was only 10% valid so that need to perform additional data. Inability of companionon the shelter so tha this attemptstomake psycologis approachand change the way of learning. Lack of coordination between relevant government service to coordinate their efforts and commitment among relevant government service and proposing a scholarship program for the children of beneficiaries. The advice given by the researchers that the data of beneficiaries must be renewed every year, provide socialiszation that bring about beneficiary families about the importance of education impact economic development of families, increased coordination between relevant government service, there is certainly that the child gets a scholarship or BSM for education.

Fusiconidium indicum (Melanommataceae) a novel species of asexual Ascomycetes

Phytotaxa ◽  
2017 ◽  
Vol 326 (2) ◽  
pp. 108
Author(s):  
J. PRATIBHA ◽  
PRABHUGAONKAR ASHISH ◽  
A.A. MAO
Keyword(s):  
Novel Species ◽  
Botanical Garden ◽  
Data Analyses ◽  
The Family

A new asexual fungus, Fusiconidium indicum, found growing on dried leaves of Mesua ferrea collected from a botanical garden in Meghalaya, India, is described and illustrated. The fungus is characterized by polyblastic, sympodial conidiogenous cells that are integrated and terminal as well as intercalary with solitary, dry, acropleurogenous, simple, ellipsoidal conidia which are formed as blown-out ends, initially with a very narrow isthmus between the conidiophore apex and young conidium. Based on combined ITS and LSU sequences data analyses, our isolate shows close affinities to the genus Fusiconidium placed in the family Melanommataceae of Pleosporales.

scholarly journals PEMILIHAN BAHASA PADA MASYARAKAT ETNIK JAWA DI DUSUN GUMUK BANJI, DESA KENCONG, KECAMATAN KENCONG, KABUPATEN JEMBER

2019 ◽  
Vol 20 (1) ◽  
pp. 33
Author(s):  
Yastin Nurfadila ◽  
Agus Sariono ◽  
Edy Hariyadi
Keyword(s):  
Social Relations ◽  
Sampling Technique ◽  
Data Interpretation ◽  
Language Choice ◽  
Context Analysis ◽  
Language Varieties ◽  
Language Variety ◽  
Language Selection ◽  
The Family ◽  
Three Stages

The Gumuk Banji community is a multi-ethnic society (consisting of Javanese, Madurese, and Chinese ethnic) and a bilingualist society (who masters Javanese, Madurese, and Indonesian). In a bilingualism society, there is always the problem of language choice because each language variety has its own function in the community. This article aims to describe the form of language choice and explain the determinants of language choice in the Javanese ethnic community in Gumuk Banji Village. The study was conducted using qualitative methods. Data collected by questionnaire and interview. The sample is determined by purposive random sampling technique. Data analysis was carried out in three stages: (1) data reduction, (2) data presentation, and (3) conclusion / verification. Data collected by questionnaire and open interview. The data interpretation stage is carried out using context analysis of the speech component. The results are stated as follows. The language varieties chosen in the family domain successively from the highest to the lowest frequency are the Javanese variety of ngoko, the Javanese variety of manners, and Indonesian; in the realm of neighborhoods: Javanese with a variety of ngoko, Javanese with a variety of manners, Madura with a variety of languages, and Indonesian; and in the realm of transactions: the Javanese variety of ngoko, the Javanese variety of manners, the Madurese variety of languages, and Indonesian. The factors that determine language selection in the family domain are participant factors (kinship status), speech objectives, speech media, and speech situations (formal or informal situations); in the neighboring domain are participant factors (ethnic similarities or differences, age and social status factors, and social relations factors), and the situation of speech (formal and informal), and in the domain of transactions are participant factors (ethnic similarities or differences). 

Efficiency of Natural Ventilation in Central Greenhouse of Botanical Garden in Kosice

2017 ◽  
Author(s):  
Martin Kovac ◽  
Katarina Kovacova ◽  
Anna Sedlakova
Keyword(s):  
Indoor Environment ◽  
Natural Ventilation ◽  
Ventilation System ◽  
Botanical Garden ◽  
Simulation Tool ◽  
Summer Period ◽  
Radiation Level ◽  
Glass Panels ◽  
The Right ◽  
Calculated Model

The object of paper is analysis of natural ventilation system in central greenhouse of Botanical garden in Kosice. The greenhouse was refurbished in 2015. The existing greenhouse covering from glass panels was replaced for polycarbonate panels. The ventilation system of central greenhouse is natural and there are used openings in covering (wall, roof). It is combination of thermally and wind driven ventilation. The main aim of contribution is to analyse different modes of natural ventilation during summer period mainly. The important factors that influence efficiency of natural ventilation in greenhouse are location and area of openings, temperature stratification in greenhouse, solar radiation level, wind speed and direction too. If the greenhouse is ventilated naturally only through external windows (roof windows are closed) the efficiency of ventilation is very poor. The defined modes of natural ventilation search the right location and size of opened windows in order to achieve the most efficiency ventilation of indoor environment. For this purpose the progressive dynamic simulation tool DesignBuilder is used where the geometrical and specific calculated model of whole central greenhouse was created.

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