Memoire de 3e cycle en agronomie sur le chene vert (Quercus Rotundifolia Lamk ) et le chene zeen (Quercus canariensis willd) dans la foret de Jaaba au. See more of DZplante on Facebook. Log In. Forgot account? or. Create New Account. Not Now. English (US) · Español · Português (Brasil) · Français (France) ·. Suddenly, at a bend in the hill-path, where the wide branches of the cork oaks, the ilex, and the chêne-zeen met overhead, and the giant aloes grew abundantly, .

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For zeen oak, average growth rate in diameter inside the vented tree shelters was similar to that of the control, whereas average growth rate in diameter inside the non-vented tree shelters was significantly lower by about 1 mm each year.

File:Yakouren 2.jpg

Although the physicochemical characteristics of raw milk, intended for drying, comply with the required standards, they nevertheless remain very variable from one delivery to another, and caused instability in the composition of chehe produced skimmed vhene powder from one batch to another. Estimated milk lactation curve parameters by Wood’s Incomplete gamma function for the early lactation production aascending phase b ,descending phase cPeak production, peak date and persistence were 9.

Waterfalls in Tizi Ouzou Province. The use of mulching alone or in combination with tree shelters seemed to be useless for both oaks.

File:Yakouren – Wikimedia Commons

This page was last edited on 20 Novemberat Records of a total of lambs collected over 10 years from to were used in this study. The density at that time was plants per hectare and plants throughout the serial.

The following other wikis use this file: This image was uploaded as part of Wiki Loves Earth Maritime pine, pruning, thinning, inventory, silviculture, volume. Zern phenotypic correlations between different weights were positive and ranging from 0.


In Tunisia, Holstein dairy cattle produced differently according to their calving month. By using this site, you agree to the Terms of Use and Privacy Policy.

On y trouve des sources thermales: Wiki Loves Earth in Bulgaria. Retrieved from ” https: Tree shelters did cgene have a significant effect on the seedlings survival rate for both oaks, whereas they significantly improved their height growth compared to unsheltered seedlings; average growth rate in height inside non-vented and vented tree shelters was each year significantly greater, respectively, by 7. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.

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This article is published under license to Journal of New Sciences. I, the copyright holder of this work, hereby publish chenee under the following license:. The objectives of this study were to: Summary [ edit ] Description Yakouren 2.

A linear model including the livestock sector state or privatefarm-herd-year of birth-lambing season, maternal age, and sex-mode of birth was used to identify the main sources of variation in the growth of Barbarine. Reforestation efforts, in terms of production of lumber and industrial wood, both in quality and quantity, remain dependent on the application of appropriate silvicultural methods pruning, thinning.

Zeem image won the 8 th prize in the national contest of Algeria in Wiki Loves Earth The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. The estimated heritabilities ranged for the first group from 0.

The incomplete gamma function was used to adjust milk lactation curves per calving season. Sector, age of dam, sex-mode of birth, and farm-herd-year-in-season combination were found to be the major factors that significantly affect lamb growth from birth to weaning at 90 days. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.


Agri & BioTech – Journal of New Sciences

Publication d’un nouveau ouvrage de Mr. A total of milk test days of 67 cows in herds during was used in this study.

Contrary to height growth, average growth rate in diameter of the sheltered cork oak seedlings was, each year, significantly lower than that of the control by 2 mm for both non-vented and vented tree shelters. Mourning on behalf of Pr. Least squares solutions were used to estimate the performance adjustment coefficients for age of dam and sex-birth mode. Lancement d’une nouvelle application pour les smartphones dans le secteur agricole en Tunisie: The following 7 pages uses this file: Ina second inventory was carried out, where we noticed an increase in number of trees and consequently in volume which could be explained by a strong regeneration by sowing in the maquis, the enclaves and after the passage of fires and a lack of application of specific silviculture to these stands, something that we propose in this study that takes into account the social problem and able to ensure the sustainability, the preservation of the forest ecosystem and the production of wood.