%0 Journal Article
%T Crecimiento y abscisi¨®n del fruto de naranja £¿valencia£¿ (Citrus sinensis L. Osbeck) en un huerto del estado Portuguesa, Venezuela
%A P¨¦rez de Camacaro
%A Mar¨ªa
%A Jim¨¦nez
%A Aracelis
%J Bioagro
%D 2009
%I Decanato de Agronom¨ªa de la Universidad Centroccidental
%X one of the most important problems in citrus is the abundant abscission of flowers and young fruit during the growth, thus affecting the production. however, this aspect has only been slightly studied in venezuela. for this reason, the study was conducted in an orchard of orange £¿valencia£¿ (citrus sinensis l. osbeck) grafted on £¿volkameriano£¿ (citrus volkameriana, pasquale) located in the locality of acarigua, portuguesa state. the growth, development and abscission (dropping) of fruits were studied during the years 2005 and 2006. two hundred unifloral leafy shoots were labeled in 10 trees (four branches per tree and five shoots per branch). the evaluation started at anthesis and continued for 151 days (february to july 2005) and 229 days (february to september 2006). the growth of persisting fruit closely approximated a sigmoidal curve expressed by change in diameter, with a slowly growth period during the first 20 days followed by a sustained increase until reaching a size of 55 and 57 mm in 2005 and 2006, respectively. the results showed two picks of relative abscission, being larger and concentrated at the beginning of march and middle of april in 2005, and largest at beginning of april and the end of june in 2006. likewise, the fruit set was 0, 73 % in 2005 and 0, 86 % in 2006. the abscission of flowers and fruitlets, as well as the persistence of these in the tree, varied between the studied years.
%K citrus
%K flowers
%K fruit drop
%K june drop.
%U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S1316-33612009000200008&lng=en&nrm=iso&tlng=en