scholarly journals Variability of Phenological Behaviours of Wild Fruit Tree Species Based on Discriminant Analysis

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 45
Author(s):  
Sina Cosmulescu ◽  
Dragoș Ștefănescu ◽  
Ana-Maria Stoenescu
Keyword(s):  
Discriminant Analysis ◽  
Tree Species ◽  
Biological Indicator ◽  
Fruit Tree ◽  
Point Of View ◽  
Bud Burst ◽  
Analysis Model ◽  
Large Variability ◽  
Wild Fruit ◽  
Full Flowering

Vegetation phenology is considered an important biological indicator in understanding the behaviour of ecosystems and how it responds to environmental cues. The aim of this paper is to provide information on the variability of phenological behaviours based on discriminant analysis using the R software package with the following libraries: ggplot2, heplots, candisc, MASS, car, and klaR. Three phenological phases were analysed with eight wild fruit tree species from a forest ecosystem in the southwestern part of Romania (44°05′19.5” N 23°54′03.5” E). It was found that there is a large and very large variability for the “bud burst” phenophase, medium and low for “full flowering”, and reduced for the “all petals fallen” phenophase. For the analyzed data, the discriminant analysis model has high accuracy (accuracy: 0.9583; 95% CI: (0.7888, 0.9989). Partition plots show the results of “full flowering” and “all petals fallen” as a function of the “bud burst” of pockmarks when separated into eight clusters and eight clusters of “full flowering” as a function of “all petals fallen”. The differences observed, from a phenological point of view, are not only due to the different cold requirements of these species but also to the temperatures during the spring.

CONSERVATION AND BREEDING OF WILD FRUIT TREE SPECIES IN FORESTRY

2000 ◽  
pp. 57-62 ◽  
Author(s):  
H. Wolf ◽  
W. Arenhövel ◽  
A. Behm ◽  
A. Franke ◽  
J. Kleinschmit ◽  
...  
Keyword(s):  
Tree Species ◽  
Fruit Tree ◽  
Wild Fruit

DNA barcoding of important fruit tree species of agronomic interest in the genus Garcinia L. from the Western Ghats

2021 ◽  
Author(s):  
Jayesh Anerao ◽  
Vikas Jha ◽  
Nishaat Shaikh ◽  
Apurva Shivalkar ◽  
Aishwarya Nityanand ◽  
...  
Keyword(s):  
Dna Barcoding ◽  
Tree Species ◽  
Western Ghats ◽  
Fruit Tree ◽  
The Western Ghats

Research on Related Model for Urban Public Crisis Handle Mechanism

2014 ◽  
Vol 989-994 ◽  
pp. 5540-5543
Author(s):  
Yong Chang Ren
Keyword(s):  
Crisis Management ◽  
Evaluation Model ◽  
Point Of View ◽  
Theoretical Point ◽  
Analysis Model ◽  
The Public ◽  
Public Crisis ◽  
Crisis Events ◽  
Response And Recovery ◽  
The Relationship

China is in a critical period of urbanization, and various social contradictions continue to be accumulated, emerged and enlarged, so public crisis management mechanism has been highly valued by governments at all levels with the public crisis events are occurred frequently. The paper conducts study for the problems in the current urban public crisis handle mechanism. First, the evaluation model of crisis management can be researched, and crisis management can be divided into four stages to evaluate respectively, they are Reduction, Readiness, Response and Recovery; then, we should research crisis prediction model to strengthen prediction, prevention and monitoring of the crisis before the crisis happened; finally, stakeholders analysis model should be studied, and scientific analyzing the interests of the various stakeholders and the relationship among them. From the theoretical point of view, the paper carries on a study for crisis handle mechanism to provide support for improving the crisis handle level.

scholarly journals GROWTH OF DIFFERENT FRUIT TREE SPECIES IN SILVOPASTORAL SYSTEMS DURING THE ESTABLISHMENT PHASE

2017 ◽  
Vol 30 (4) ◽  
pp. 1040-1049 ◽  
Author(s):  
CAROLINA DELLA GIUSTINA ◽  
ROBERTA APARECIDA CARNEVALLI ◽  
MARCELO RIBEIRO ROMANO ◽  
DIEGO BARBOSA ALVES ANTONIO ◽  
CAMILA ECKSTEIN
Keyword(s):  
Tree Species ◽  
Block Design ◽  
Control Plant ◽  
Fruit Trees ◽  
Fruit Tree ◽  
Silvopastoral Systems ◽  
Area Index ◽  
Mato Grosso ◽  
Plant Accumulation ◽  
Establishment Phase

ABSTRACT The benefits of integrating agricultural components into silvopastoral systems are widely known, but the limited knowledge about ecological processes in the establishment phase impedes the use of this technology. The objective of this study was to evaluate interactions between fruit tree species and the sward layer under canopies of trees in the establishment phase of silvopastoral systems in Mato Grosso, Brazil. The experiment was implemented in October 2013, with an evaluation period from January to July 2015. The systems were composed of eight fruit trees intercropped with Tifton 85 grass. A completely randomized block design was adopted, with two replications per area per treatment. We evaluated the agronomic performance of the fruit trees, the categories of the light environment, and the plant accumulation under the canopies. The acerola fruit trees of the variety Roxinha had higher Leaf area index (LAI) and Light interception (LI) values, showing a denser canopy with small porosity and the lowest light quality available to the plants beneath the canopy (lower red/far-red ratio), thereby decreasing plant accumulation under trees. The guava fruit trees showed higher growth rates than the other fruit trees, but lower LAI and LI values and a higher red/far-red ratio, allowing higher plant growth under the canopy. Cajá trees showed a similar behavior; however, this species is deciduous, which limits its potential use in integrated systems. Banana and coconut trees were highly dependent on irrigation during the dry season. The remaining species showed an adequate growth and potential to control plant species growth under their canopies.

scholarly journals Innovative management of rural buildings

2019 ◽  
Vol 9 (1) ◽  
pp. 43-61 ◽  
Author(s):  
Marzia Morena ◽  
Gian Battista Bischetti ◽  
Maria Luisa Del Gatto ◽  
Anna Gornati
Keyword(s):  
Real Estate Market ◽  
Point Of View ◽  
Analysis Tool ◽  
Full Potential ◽  
Analysis Model ◽  
Property Development ◽  
Grazing Land ◽  
Content Type ◽  
The Real Estate ◽  
Rural Buildings

Purpose This study forms part of a larger project funded by Cariplo Foundation. The purpose of this paper is to focus on the scope to exploit the full potential and upgrade the functions of abandoned or under-utilized typical highland Alpine pasture systems (made by a complex of grazing fields, buildings for temporal animal and human recovery and dairy production, identified as Malga system or Alpeggio), by adopting the property investor’s point of view. Design/methodology/approach This study has adapted the traditional property development processes to rural buildings, thus generating an analysis model that proves able to define a new destination of use whenever the project considers the reuse of existing facilities. Findings The proposed model analyzes the technological, functional and territory features of the building to be upgraded, to assess the technical feasibility of the changeover project and identify the highest and best use of Malga-systems. The model has been applied to all the Malga-systems in the Orobie Bergamasche Park; it performed a comprehensive assessment of the development potential of the Malga-systems in the same Park. Research limitations/implications The design of the model took into consideration the specificities of the Orobie Bergamasche Park; nevertheless, the method can be taken as an example to be applied to any grazing land in the Alps. Originality/value This research provides the real estate market with a new analysis tool that is specific for the rural buildings, and suitable to streamline the procedures designed to upgrade these properties and to infuse new life into the territories that are experiencing a period of hardship and/or decay.

scholarly journals ECOLOGICAL AND FUNCTIONAL CLUSTERING OF FORESTAL SPECIES IN THE SOUTH WESTERN AMAZONIA

2016 ◽  
Vol 40 (6) ◽  
pp. 1083-1090
Author(s):  
Elias Lourenço Vasconcelos Neto ◽  
Celso Azevedo ◽  
Luciano Ribas ◽  
Marcus Neves d'Oliveira
Keyword(s):  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Tree Species ◽  
Permanent Plots ◽  
Cumulative Frequency ◽  
Cumulative Frequency Distribution ◽  
Functional Clustering ◽  
Breast Height ◽  
Three Stages ◽  
Species Grouping

ABSTRACT The aim of this study was to perform ecological and functional clustering of tree species in southwestern Amazon. Developed from data from 95 permanent plots of 1 ha each, all individuals with diameter at breast height (DBH) ≥10 cm were measured. The species grouping was performed in three stages: (1) cluster analysis, using the variables: diameter annual periodic increment -(IPADAP) considering three competition levels (high, medium and low) and the 95th percentile of the diameters (P95) cumulative frequency distribution (Ward hierarchical method); (2) Discriminant analysis, using the variables P95 and IPADAP by Fisher's method and (3) subjective stage, considering the species ecological characteristics. The Ward and Fisher methods used for discriminant and cluster analyses were effective for species grouping resulting on the formation of 10 groups. Variables: IPADAP and and P95 were efficient on the formed groups discrimination.. Variations in the growth rates for the overall mean data were reduced wen calculated for each group of species.

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