نتایج جستجو برای: olive trees yield
تعداد نتایج: 293786 فیلتر نتایج به سال:
Exploiting biodiversity must be considered today an effective strategy to improve the sustainability of olive production systems. The evaluation local cultivars, based on their vegetative and fruiting traits, along with analysis product quality, may contribute significantly development diffusion new olive-growing aim this study was evaluate growth, productivity, oil quality three Sicilian culti...
Low quality of irrigation water along with increasing salinity level has reduced the olive yield over recent years in Iran. Screening of salinity tolerance in olive cultivars using gas-exchange parameters, water use efficiency, and relative leaf chlorophyll content are important in olive development programs. This study was carried out to assess the salinity tolerance of four olive cultivars (A...
The Mediterranean Basin is a climate and biodiversity hot spot, and climate change threatens agro-ecosystems such as olive, an ancient drought-tolerant crop of considerable ecological and socioeconomic importance. Climate change will impact the interactions of olive and the obligate olive fruit fly (Bactrocera oleae), and alter the economics of olive culture across the Basin. We estimate the ef...
Introduction [1]. It is a rough ligno-cellulosic feed characterized by high percentage of crude fibre (CF), particularly rich in Olive (Olea europaea) production is distributed lignin, low crude protein (CP) [4] but having a over all the five continents. It is especially important in surprisingly high oil percentage [2]. Further, many the Mediterranean area, Spain being first as regards workers...
Opening frontiers has led in the last two decades to a massive migration of Romanians to Spain and Italy, two countries known to have large areas planted with olives. Romania owns large areas planted with ash forests. Because of cross-reactivity between these two trees belonging to the Oleaceae family and the big allergenic potential of olive pollens, after a number of years of residence in the...
An ethrel treatment of olive trees in two sites differing in altitude caused a decline in the infestation of Prays oleae, an important pest in this crop. Since the ethylene treatment did not affect natural enemies of P. oleae, we conclude that this natural compound can be used as an alternative to the use of pesticides in olive orchards. The results of this work indicate that ethrel affects P. ...
The aim of this work was to evaluate the potential of used sap flow (SF), trunk diameter variation (TDV) and leaf turgor (LT) sensors for assessing water stress in a ‘Arbequina’ hedgerow olive orchard with 1667 trees ha. Measurements were made in control trees irrigated to replace 100% of the crop water needs, and in trees under two regulated deficit irrigation strategies, 60RDI and 30RDI, in w...
In this study, Microwave-Assisted Solvent Extraction (MASE) was used to recover oil residues from pomace olive using acidic hexane. Results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. For both radiation powers used (170 and 510W), the optimal extraction time and most interesting content of acetic acid in hexan...
The olive tree (Olea europaea L.) is widely known for its strong tendency for alternate bearing, which severely affects the fruit yield from year to year. Microarray based gene expression analysis using RNA from olive samples (on-off years leaves and ripe-unripe fruits) are particularly useful to understand the molecular mechanisms influencing the periodicity in the olive tree. Thus, we carried...
BACKGROUND In the last years, many olive plantations in southern Spain have been mediated by the use of self-rooted planting stocks, which have incorporated commercial AMF during the nursery period to facilitate their establishment. However, this was practised without enough knowledge on the effect of cropping practices and environment on the biodiversity of AMF in olive orchards in Spain. ME...
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