Repeatability of physical and chemical variables in pequi fruits

Submitted by Rodrigo Martins Cruz ([email protected]) on 2014-12-22T12:42:57Z No. of bitstreams: 2 blenda_calazans_soares.pdf: 3676934 bytes, checksum: e52fe2d2fae270bbccbb7f61353a234c (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5)Approved for entry into archive by Rodrigo Martins Cruz ([email protected]) on 2014-12-22T13:14:12Z (GMT) No. of bitstreams: 2 blenda_calazans_soares.pdf: 3676934 bytes, checksum: e52fe2d2fae270bbccbb7f61353a234c (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5)Approved for entry into archive by Rodrigo Martins Cruz ([email protected]) on 2014-12-22T13:15:06Z (GMT) No. of bitstreams: 2 blenda_calazans_soares.pdf: 3676934 bytes, checksum: e52fe2d2fae270bbccbb7f61353a234c (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5)Made available in DSpace on 2014-12-22T13:15:08Z (GMT). No. of bitstreams: 2 blenda_calazans_soares.pdf: 3676934 bytes, checksum: e52fe2d2fae270bbccbb7f61353a234c (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2014Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG)O objetivo do presente trabalho foi estimar os efeitos de popula??es, matrizes e do coeficiente de repetibilidade de vari?veis f?sicas e qu?micas em frutos de pequizeiro (Caryocar brasiliense Camb.) oriundos de duas popula??es. Coletaram-se frutos procedentes de 30 matrizes, de diferentes idades, em Curvelo e em S?o Gon?alo do Rio Preto, Minas Gerais, 15 matrizes de cada local, por tr?s anos. Foram avaliadas vari?veis f?sicas, massa total do fruto; massa do mesocarpo externo; n?mero de put?mens por fruto; massa total de put?mens; massa m?dia de put?mens; massa total de polpa e massa m?dia da polpa, e vari?veis qu?micas, lip?deos e prote?nas. Foi realizada a an?lise de vari?ncia conjunta com as matrizes comuns aos tr?s anos, 20 matrizes para as vari?veis f?sicas, nove de Curvelo e 11 de S?o Gon?alo do Rio Preto, e oito matrizes para as vari?veis qu?micas, quatro de cada local. Os efeitos de matrizes dentro das respectivas popula??es foram altamente significativos para todas as vari?veis estudadas, ao passo que os efeitos destas popula??es n?o o foram para nenhuma vari?vel. O coeficiente de repetibilidade variou muito entre as vari?veis estudadas e, em geral, o n?mero de medi??es necess?rias para se atingir uma determina??o (R2) de pelo menos 80% foi acima de dois. Infere-se, portanto, que a sele??o de matrizes superiores para as vari?veis em apre?o pode ser conduzida em uma ?nica popula??o, mas as avalia??es devem ser conduzidas mais de uma vez em cada matriz.Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014.ABSTRACT The goal of this present paper is to estimate the effects of populations, mother trees and the repeatability coefficient of physical and chemical variables in pequi fruits (Caryocar brasiliense Camb.), originated from two populations. It was collected fruitage from 30 mother trees, of different ages, in Curvelo and S?o Gon?alo do Rio Preto, Minas Gerais, bein 15 mother trees from each place, during 3 years. It was evaluated the physical variables, total mass of the product, exterior mesocarp mass, number of putamens per fruit, total mass of the putamens, total and average mass of the pulp, and chemical variables, lipids and proteins. An joint variance analysis with the common mother trees in the 3 years was made, bein 20 mother trees for physical variables, 11 from S?o Gon?alo do Rio Preto and 9 from Curvelo; and 8 mother trees for chemical variables, 4 from each place. The effects of the mother trees inside the respective populations were highly significatives for all the variables checked, but the effects of those populations were not for any variable. The repeatability coefficient fluctuated a lot among the variables checked and, in general, the number of measurements necessary to reach a determination (R?) of at least 80% was higher than 2. It is implied, then, that the selection of superior mother trees considering the used variables in this work could be conducted in a single population, but the evaluations must be conducted more than once in each mother tree

POLÍMERO HIDROABSORVENTE NA REDUÇÃO DE NUTRIENTES LIXIVIADOS DURANTE A PRODUÇÃO DE MUDAS DE MARACUJAZEIRO-AMARELO

The irrigation frequency to meet the water requirement for the production of passion fruit seed-lings can cause nutrients leaching, reducing the fertilization efficiency. Thus, the work was carried out to evalu-ate the effect of hydro-absorbent polymer in reducing losses of leached nutrients during the production of yel-low passion fruit seedlings. The factorial design 5 x 2 was used, distributed in a completely randomized design, being the factors represented by five doses of polymer (Hidroplan®-EB/HyB-M): 0, 0.5, 1.0, 1.5 and 2.0 g L-1 of substrate and two types of substrates: Bioplant® and Provaso® with four replications and 10 plants per plot. The polymer was incorporated into the substrates, making up the homogenization of the mixture at the time of planting. Irrigation was carried out daily sufficient to keep the substrate moisture control treatment at field ca-pacity, programmed by a system of automated irrigation sprinkler type. Collection of the leachate was carried out at 30 and 60 days after emergence of seed, which was submitted to laboratory analysis to determine the amount of nutrients leached. In the last evaluation determined the seedlings size and nutrient content in leaf dry mass. The incorporation of hydro-absorbent polymer to substrate reduced nutrient losses by leaching in the substrates. The losses reduction of leached nutrients favored the growth and increase of leaf nutrients in passion fruit seedlings with the polymer