Results 21 to 30 of about 1,990,499 (312)

Effect of Vegetative Propagation Materials on Globe Artichoke Production in Semi-Arid Developing Countries: Agronomic, Marketable and Qualitative Traits [PDF]

open access: yes, 2017
: In Tunisia, globe artichoke is mainly propagated by underground dormant axillary buds (ovoli), which are removed from the field in August during the quiescence period. The high cost of in vitro-plants and the absence of specialized nurseries were among
Bouzaein, Ghaith   +4 more
core   +1 more source

Robinia pseudoacacia L. Flower Analyzed by Using An Unmanned Aerial Vehicle (UAV)

open access: yesRemote Sensing, 2017
Tree flowers are important for flower–insect relationships, seeds, fruits, and honey production. Flowers are difficult to analyze, particularly in complex ecosystems such as forests.
Christin Carl   +4 more
doaj   +1 more source

Synergistic contributions of climate and management intensifications to maize yield trends from 1961 to 2017

open access: yesEnvironmental Research Letters, 2023
Understanding contributions of climate and management intensifications to crop yield trends is essential to better adapt to climate changes and gauge future food security.
Hanoi Medina, Di Tian
doaj   +1 more source

Mixed stands of Scots pine (Pinus sylvestris L.) and Norway spruce [Picea abies (L.) Karst] can be more productive than monocultures. Evidence from over 100 years of observation of long-term experiments

open access: yesForest Systems, 2014
Aim of study: The objective of this study was to analyse the effect of species mixing of Scots pine and Norway spruce on the productivity at the stand and species level.
Kamil Bielak   +2 more
doaj   +1 more source

Factors causing yield gap in rape seed production in the eastern of Mazandaran province, Iran

open access: yesItalian Journal of Agronomy, 2020
The reduction of yield gap and achievement yield potential of oil plants make a significant contribution to yield increases and oil production in developing countries.
Esmail Nezam Zadeh Nezamzadeh   +3 more
doaj   +1 more source

Bird composition and diversity in oak stands under variable coppice management in Northwestern Turkey

open access: yesiForest - Biogeosciences and Forestry, 2018
Coppice management results in profound differences in forest structure and composition, which in turn can modify habitat value for bird species.
Beskardes V   +7 more
doaj   +1 more source

Arthropod diversity in pure oak forests of coppice origin in northern Thrace (Turkey)

open access: yesiForest - Biogeosciences and Forestry, 2015
Oak (Quercus spp.) forests are among the most important forest types in Turkey. In the past, oak forests were managed through coppice clear-cutting, but in recent decades they have mostly been converted to high forest.
Keten A   +9 more
doaj   +1 more source

A review of thinning effects on Scots pine stands: From growth and yield to new challenges under global change

open access: yesForest Systems, 2017
Aim of the study: Thinning experiments in Scots pine (Pinus sylvestris L.) stands have been carried out since long in different regions of its distribution. The aim of this paper is to gather the knowledge about the thinning effects on Scots pine stands,
Miren del Río   +4 more
doaj   +1 more source

Results of trials with poppy seed (Papaver somniferum) in organic and integrated production technology. [PDF]

open access: yes, 2010
The influence of organic and integrated management practices on poppy yield, pests and disease incidence was assessed in field trials in 2009. Crop management based on mineral fertilisers application and chemosynthetic pesticides treatment significantly
Dvorak, Petr   +4 more
core  

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

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