Archive | October 2017

Investigation of oak decline and its relation to physiographic factors in the forests of West of Iran (case study: Ilam Province) – JBES

Quercus brantti,Jalal Nourinejad*, Ali Rostami

Department of forest science, Islamic Azad University, Ilam Branch, Ilam, Iran

Key words: Oak decline, Quercus brantti, Physiographic factors, Zagros forest.

Abstract

The forest trees decline is important phenomenon that usually it emerges or increases due to climate change. Recently this phenomenon has occurred with extensive trees decline in the Zagros oak forest. Continue reading

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Investigation of genetic divergence in local sunflower hybrids and inbred lines by applying morphological markers – IJAAR

Helianthus annuusUzma Ayaz, Muhammad Fareed Khan , Sanam Bashir

Department of Plant Breeding and Molecular Genetics, University of Poonch Rawalakot, Pakistan

Key words: Sunflower, Helianthus annuus L, Genetic diversity, Cluster analysis, Principle component analysis.

Abstract

Knowledge of genetic diversity is the basic requisite for any plant breeding program. Seventeen sunflower hybrids and fifteen inbred lines including ten Cytoplasmic male sterile lines and five restorer lines were evaluated at the experimental area of National Agriculture Research centre, Islamabad, Pakistan during autumn-2011. Continue reading

Effect of tillage practices on soil fertility – JBES

iStock_000005900018SmallI.Tindjina, S. Aikins, K.M.L. Tengan

Association of Church Development Projects ACDEP, Tamale, Ghana

Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

CSIR-Crops Research Institute, Kumasi, Ghana

Key words: Soil, Fertility, Tillage, Practices, Sustainable.

Abstract

Food security depends on sustainable agriculture. Sustainability hinges on the efficient and judicious use of land and soil resources. This study sought to assess the effect of tillage practices on the fertility of the soil. Continue reading

Foraging and pollination activity of Apis mellifera adansonii Latreille (Hymenoptera: Apidae) on flowers of Allium cepa L. (Liliaceae) at Maroua, Cameroon – IJAAR

Allium cepa,Georges Tchindebe*, Fernand-Nestor Tchuenguem Fohouo

Laboratory of Zoology, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon

Key words: Apis mellifera adansonii, nectar, pollen, Allium cepa, pollination, Maroua.

Abstract

To evaluate the impact of Apis mellifera adansonii (Hymenoptera: Apoïdae) on fruit and seed of Allium cepa its foraging and pollinating activities were studied in Maroua, from November 2010 to April 2011 and 2012. Treatments included unlimited floral access by all visitors, bagged flowers to avoid all visits and limited visits of A. m. adansonii. Continue reading

Effect of mineral fertilization on the physicochemical properties of soils in the region of Go and the vegetative behaviour of immature trees of clone PB 235 of Hevea brasiliensis in South- Western Côte d’Ivoire – IJAAR

H-74-11 Hevea brasiliensisJoseph Yamoussou Alle Emmanuel Acka Dick, Eric Francis Soumahin, Raymond Olaye Gabla, Jules Zagbahi Keli, Samuel Obouayeba

Université Félix Houphouët Boigny, UFR Biosciences, Laboratoire de Physiologie Végétale, 22 BP 582 Abidjan 22, Côte d’Ivoire

Centre National de Recherche Agronomique (CNRA), Station de Recherche de Bimbresso, 01 BP 1536 Abidjan 01, Côte d’Ivoire

Cabinet Hévéicole Gabla, 01 BP 545 San Pedro, Côte d’Ivoire

Centre National de Recherche Agronomique (CNRA), Direction Régionale de Man, BP 440 Man, Côte d’Ivoire

Key words: Côte d’Ivoire, soil fertility, mineral fertilization, Hevea brasiliensis, radial vegetative growth.

Abstract

The effect of mineral fertilization on the physicochemical properties of the soil and the vegetative behaviour of clone PB 235 of Hevea brasiliensis has been studied in the Go experimental plantation of San Pedro in south-western Côte d’Ivoire. Continue reading