EDAPHOCLIMATOLOGICAL STUDY OF CHERIMOYA (ANNONA CHERIMOLA MILL.) IN LOJA PROVINCE, SOUTHERN ECUADOR

1999 ◽  
pp. 71-90
Author(s):  
L. Bydekerke ◽  
E. Van Ranst ◽  
X. Scheldeman ◽  
P. Van Damme
Keyword(s):  
Annona Cherimola ◽  
Southern Ecuador

scholarly journals Effectiveness of the arbuscular mycorrhizal fungi use in the cherimoya (Annona cherimola Mill.) seedlings growth

2017 ◽  
Vol 66 (2) ◽  
Author(s):  
William Viera ◽  
Diego Campaña ◽  
Salomé Castro ◽  
Wilson Vásquez ◽  
Pablo Viteri ◽  
...  
Keyword(s):  
San Francisco ◽  
Mycorrhizal Fungi ◽  
Dry Matter ◽  
Arbuscular Mycorrhizal ◽  
Sorghum Vulgare ◽  
Annona Cherimola ◽  
Southern Ecuador ◽  
Trap Plants ◽  
Northern Peru ◽  
Poor Fertilization

Cherimoya (Annona cherimola Mill.) is native to the inter-Andean valleys of southern Ecuador and northern Peru. In Ecuador, the yield of this fruit crop is low, mainly due to agricultural management problems and poor fertilization. This research aims to assess the effect of native mycorrhizal fungi on seedling growth of cherimoya (cultivar 'Cangahua'). Sampling of soil and roots was carried out in 14 production sites of cherimoya. Soils that obtained the largest number of spores and greatest percentage of mycorrhizal colonization were those collected in Tumbabiro (plot 10), Gonzanamá, Paute and San Francisco de Atahualpa. These soils were used to propagate the inoculums in trap plants (Sorghum vulgare) and subsequently, they were used to inoculate the seeds and seedlings of cherimoya. There was no statistical difference to jointly analyze the results obtained in the inoculated seeds and seedlings. However, independently, the inoculum coming from the soil of Tumbabiro obtained the best results by doubling the content of total phosphorus and 47% increase in dry matter in cherimoya seedlings compared to control.

Regionalization of wind-speed data to analyse tree-line wind conditions in the eastern Andes of southern Ecuador

Erdkunde ◽  
2015 ◽  
Vol 69 (1) ◽  
pp. 3-19 ◽  
Author(s):  
Julia Wagemann ◽  
Boris Thies ◽  
Rütger Rollenbeck ◽  
Thorsten Peters ◽  
Jörg Bendix
Keyword(s):  
Wind Speed ◽  
Tree Line ◽  
Wind Speed Data ◽  
Southern Ecuador

scholarly journals Conservation Debates: People’s Perceptions and Values towards a Privately Protected Area in Southern Ecuador

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 233
Author(s):  
Verónica Iñiguez-Gallardo ◽  
Fabián Reyes-Bueno ◽  
Olga Peñaranda
Keyword(s):  
Protected Areas ◽  
Land Tenure ◽  
Protected Area ◽  
Planning Process ◽  
Social Needs ◽  
Structured Interviews ◽  
Key Stakeholders ◽  
Southern Ecuador ◽  
Negative Perceptions ◽  
Land Tenure System

The perceptions and values that local communities have towards protected areas are of great value for the improvement of these territories’ management. Such perceptions and values are often absent in the conservation planning process, particularly in those privately protected areas that are established in areas where the land tenure system is based not only on ownership but also on customary uses. Drawing on qualitative and quantitative data obtained through semi-structured interviews with key stakeholders and members of communities surrounding a privately protected area in southern Ecuador, we identify that the level of collaboration with the managers, the distance to the protected area, the percentage of untitled land, and the dependence on the resources (customary uses) are among the variables affecting these perceptions and values. Positive perceptions towards protected areas and naturalistic values are developed among those who collaborate with the protected area managers, whereas negative perceptions, and a mix of naturalistic and biospheric values are developed among those who have a sense of a lack of attention to social needs although supporting nature conservation at the same time. The evidence presented shows the importance of matching local peoples’ expectations with conservation goals during the establishment of a protected area.

scholarly journals Effects of Land-Use Change on the Community Structure of the Dung Beetle (Scarabaeinae) in an Altered Ecosystem in Southern Ecuador

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 306
Author(s):  
Vinicio Carrión-Paladines ◽  
Andreas Fries ◽  
Andrés Muñoz ◽  
Eddy Castillo ◽  
Roberto García-Ruiz ◽  
...  
Keyword(s):  
Land Use ◽  
Community Structure ◽  
Land Use Change ◽  
Dung Beetle ◽  
Dry Forest ◽  
Farm Animals ◽  
P Value ◽  
Southern Ecuador ◽  
Abundance And Diversity ◽  
Effects Of Land Use

This study evaluated the effects of land-use change (L-UCH) on dung beetle community structure (Scarabaeinae) in a disturbed dry ecosystem in southern Ecuador. Five different L-UCH classes were analyzed by capturing the dung beetle species at each site using 120 pitfall traps in total. To determine dung beetle abundance and diversity at each L-UCH, a general linear model (GLM) and a redundancy analysis (RDA) were applied, which correlated environmental and edaphic conditions to the community structure. Furthermore, changes in dung-producing vertebrate fauna were examined, which varied significantly between the different L-UCH classes due to the specific anthropogenic use or level of ecosystem disturbance. The results indicated that soil organic matter, pH, potassium, and phosphorus (RDA: component 1), as well as temperature and altitude (RDA: component 2) significantly affect the abundance of beetles (GLM: p value < 0.001), besides the food availability (dung). The highest abundance and diversity (Simpson’s index > 0.4, Shannon-Wiener index > 1.10) was found in highly disturbed sites, where soils were generally more compacted, but with a greater food supply due to the introduced farm animals. At highly disturbed sites, the species Canthon balteatus, Dichotomius problematicus, and Onthphagus confuses were found specifically, which makes them useful as bio-indicators for disturbed dry forest ecosystems in southern Ecuador.

scholarly journals Antihyperglycemic and Antilipidemic Properties of a Tea Infusion of the Leaves from Annona cherimola Miller on Streptozocin-Induced Type 2 Diabetic Mice

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2408
Author(s):  
Jesús Martínez-Solís ◽  
Fernando Calzada ◽  
Elizabeth Barbosa ◽  
Miguel Valdés
Keyword(s):  
High Performance ◽  
Density Lipoprotein ◽  
Organ Damage ◽  
Tea Infusion ◽  
Annona Cherimola ◽  
End Of Treatment ◽  
Tea Infusions ◽  
Array Detection ◽  
Treatment Of Diabetes

The antihyperglycemic and antilipidemic effects of the tea infusion extracts of leaves from Annona cherimola Miller (IELAc-0.5, IELAc-1.5, and IELAc-3.0) were evaluated on normoglycemic (NG) and streptozocin-induced diabetic (STID) mice. In the acute test, IELAc-1.5 at 300 mg/kg bodyweight (bw) exhibited antihyperglycemic activity on STID mice since the first hour of treatment. Then, its antidiabetic potential was analyzed in a subchronic evaluation. IELAc-1.5 was able to reduce the blood glucose level, glycated hemoglobin (HbA1c), cholesterol (CHO), and triglycerides (TG); high-density lipoprotein (HDL) showed an increase at the end of treatment. IELAc-1.5 did not modify the urine profile at the end of the evaluation, and neither toxicity nor macroscopic organ damage were observed in acute and subchronic assays. In addition, a major flavonol glycoside present in the tea infusion extracts was identified using high-performance liquid chromatography with diode array detection (HPLC-DAD). The analysis of the tea infusion extracts by HPLC revealed that rutin was the major component. This study supports the use of tea infusions from Annona cherimola for the treatment of diabetes and suggests that rutin could be responsible, at least in part, for their antidiabetic properties.

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