%0 Journal Article
%T Biomasa, prolina y par¨¢metros nitrogenados en pl¨¢ntulas de nogal bajo estr¨¦s h¨ªdrico y fertilizaci¨®n nitrogenada
%A O-Quezada
%A Guadalupe Alejandra de la
%A Ojeda-Barrios
%A Damaris Leopoldina
%A Hern¨¢ndez-Rodr¨ªguez
%A Ofelia Adriana
%A S¨¢nchez-Ch¨¢vez
%A Esteban
%A Mart¨ªnez-Tellez
%A Jaime
%J Revista Chapingo. Serie horticultura
%D 2011
%I Universidad Aut¨®noma Chapingo
%X this study was conducted to measure nitrogen concentration and response to water stress in pecan seedlings [carya illinoinensis (wangenh) c. koch]. the experiment consisted in observation of growth and development of plants started from western schley pecan seeds. seedlings were subjected to different treatments: irrigation with n supply, irrigation without n, water stress with n supply, and finally, and water stress without n. the following variables were assessed: plant height, trunk diameter, chlorophyll by spad and methanol, number of leaves and leaf area index, proline and biomass. the results showed that western schley pecan seedlings with n supply and water stress reduced the concentration of nt and n-no3 by 21.73 % and 61.84 % respectively, leaf area and trunk diameter by 53.4 % and 36.5 %, respectively, but increased proline content by 39.41 %. with irrigation and in the absence of n, chlorophyll content decreased by 20 % and stem biomass by 58.34 %. finally, the relative water content in stem and root decreased 61.54 % and 60.17%, respectively.
%K carya illinoensis
%K nitrates
%K chlorophyll
%K drought.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1027-152X2011000400003&lng=en&nrm=iso&tlng=en