Etude de la callogénèse et de la caulogénèse de l’association porte greffe citrus vulkamarina sur quatres variétés de greffons d’agrumes (Clémentine Orograndé, Clémentine Nules, Orange Washington Navel et Citron Eureka)

Abstract

Citrus fruits are of vital interest to a large number of countries because of their economic importance, and the same is true for Algeria. Grafting is an operation that aims to combine the advantageous characteristics of two different plants into a single plant; the criteria for choosing a citrus plant have evolved by leading to a broadening of the range of varieties and species available to serve as a graft variety. Our test was carried out in the El Nakhla nursery in Ain Defla, to study compatibility and affinity by monitoring graft recovery rates of four graft varieties (Clémentine Orograndé, Clémentine Nules, Orange Washington Navel and Eureka) grafted in spring crest on a single variety of rootstocks (Citrus Volkameraina) in a semi-automatic multi-chapel greenhouse. The comparison between the different varieties that allows data the following results: -The semi-automatic multi-chapel greenhouse ensures a microclimate favorable to the plants (temperature and humidity) for the success of grafting and the development of shoots. -The best association in terms of recovery time to grafting and the state of development is high with the graft association (Citrus Volkameriana) followed by oronge washington navel, clementine nules. These results remain to be developed in the future on the behavior of these different association on soil in production orchards.