Abstract

MAMANI INCA, Wilmer  and  FERNANDEZ CHAVEZ, Celia M.. Rooted in comparative study of pine limón {Cupressus macrocarpa var. Goldcrest) and chamaecyparis blue {Chamaecyparis lawsoniana var. Ellwoodii) substrate with four types of chamber in the nursery subirrigation Ekornat-garden, La Paz.. Apthapi [online]. 2017, vol.3, n.1, pp. 11-12. ISSN 0102-0304.

This work was done in the nursery EKORNAT- GARDEN located in the La Merced district Urkupiña thirteen of the city of La Paz, north of the city. The study was conducted with two conifer species with four different substrates with the Experimental completely randomized design bifactorial arrangement with three repetitions where levéis of factor "A" were the two conifer species (Chamaecyparis and Cupressus) and factor levéis "B" four types of substrates (Turba 1P, 2P charcoal, blackearth 1P 1P .; Turba, charcoal 1P, 2P Turba .; limo 1P, 1P limo, black earth 1P, 2P Turba, 1P fine sand, black earth 1 P.). The response variables considered to meet the stated objectives were:% survival; % Rooting; height growth of cuttings; root length; number of roots. To make the process of data analysis of variance was performed using the application system IBM SPSS Statistics 20, in addition to a comparison of averages through Excel 2010. The results obtained are: In the percentage of seizure, (survival), the best results were obtained with 100% survival of cuttings of both species of conifer this because moisture conditions providing camera subirrigación, avoiding dehydration of plant samples. For the response variable is percentage of rooted, a comparison of averages, which gave better results T1 and T2 treatments because 100% of cuttings was observed, with the formation of roots, eventually T5 treatment was performed, T7 and T8 which was presented by a low percentage of rooting of 11.11%. Moreover, the Chamaecyparis species with the substrate 1 and substrate 2 had a high percentage of rooted as the substrate 4, also with a high percentage of rooted, remaining with a low result the substrate 3. In plant height, it was observed that there were statistically highly significant differences in factor A and the interaction of factors (A * B) and no significant media types. Also it is important to mention that the present species Chamaecyparis best plant height with 1.43 cm on average. In the response variable root length statistically highly significant differences in factor A and factor interaction (A * B) and finally shown significant results shown in the factor B that are substrates. The Chamaecyparis species has a better average length of 7.17 cm with roots, compared with 5.53 cm Cupressus. As to factor B substrates root length wasfavored with a valué of 7.19 cm in the substrate composed of: (b1)one Turba 1P, 2Pcharcoal, blackearth 1P. The number of roots was also considered as a response variable performed the analysis of variance gave no significant difference in the factor A (coniferous species) also gives a highly significant factor B (substrates) result, and the interaction factors substrate 2 gave better results in terms of number of roots with 6,45 in second place the substrate 4 with 5.7 of number root is then the substrate 3 with 5, 35 finally is the substrate 1 with 3, 82 number of roots.

Keywords : Rooting; substrates; subirrigation chamber; lemon pine; blue Chamaecyparis.