Abstract
The objective of this work is to determine the morpho-biochemical behavior of olive (2 years old) plants stemming from herbaceous cuttings and grafted on an oleaster, with two varieties of Spanish origin (Manzanilla and Arbiquina) and two varieties of Algerian origin (Sigoise and Chemlal) under the effect of irrigation with salin water at 100 mM-l-1 NaCl. The experimentation takes place in the Faculty of Science of Nature and Life - Tiaret Ibn Khaldoun - University - Algeria, under a semi-automatic greenhouse and under well controlled conditions. The control plants are irrigated with a nutrient solution, while the plant stress received nutrient solution enriched by sodium chlorure in four repetitions 100 mM / l NaCl. The analysis focused on the measurement of leaf area, soluble sugar and proline content. According to the results obtained, the leaf area of the treated plants slightly decreased compared to that of the control plants. However, the 20 weeks of brackish irrigation resulted in proline and sugars accumulation in the stressed genotype compared to the control genotype. In addition, this accumulation is very important for the leaves of plants local origin (Algerian) compared to introduced plants (Spanish) and in the leaves of plants grafted on oleaster compared to plants from herbaceous cuttings.
Highlights
IntroductionThe olive tree "Olea europaea L. ssp europaea" is a symbolic and distribute tree in the Mediterranean flora for thousands of years in the wild (sylvestris var.) or cultivated (europaea variety)
The olive tree "Olea europaea L. ssp europaea" is a symbolic and distribute tree in the Mediterranean flora for thousands of years in the wild or cultivated
The comparison of the mean, minimum and maximum values shows that the genotypes of Algerian origin have higher values than those of Spanish origin. (Figure 2a)
Summary
The olive tree "Olea europaea L. ssp europaea" is a symbolic and distribute tree in the Mediterranean flora for thousands of years in the wild (sylvestris var.) or cultivated (europaea variety). It is renowned for its great hardiness, allowing it to develope and grow under conditions of sub-climate and sometimes very poor soil. The aim of this work is to determine the effect of salinity on the morphological and biochemical behavior of the leaves of four genotypes of olives They are obtained from herbaceous cuttings and grafted on the oyster, including two genotypes of Algerian origin (Chemlal and Sigoise) and two Spanish origins. The study parameters are the measurement of the height of the leaves, the quantification of proline and the soluble sugars of the four genotypes
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