Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age
نویسندگان
چکیده
Background: The selection of superior genotypes and adapted to the edaphoclimatic conditions region introduction produces gains in productivity for forest stands. objective this study was select progenies Pinus spp. planted Lavras, Minas Gerais (MG), Brazil. Methods: experimental site located on dystrophic Haplic Cambisol. progeny test designed as a randomised complete block with 30 replicates single plot. treatments corresponded one massoniana, three caribaea var. bahamensis 33 hondurensis arranged 3x3 m spacing. traits height (H), diameter at breast (DBH) crown projection area (CPA) were measured 36 months age. Results: results showed that heritability narrow sense 0.24 DBH, 0.27 H 0.50 CPA. DBH high-magnitude positive correlation. P7, P15, P27, P31 P33 better performance than other evaluated traits. Direct indirect similar gains, which favors use selection; i.e., when selecting are also selected. Additionally, may be used advanced ages given difficulty measuring height. compared massoniana MG. Conclusions: This suggests possibility expanding production Lavras P33, because initial assessments they greater adaptability conditions. Nevertheless, performing future aim evaluating resin is recommended.
منابع مشابه
OCCURRENCE OF Blastocystis spp. IN UBERABA, MINAS GERAIS, BRAZIL
Intestinal parasites are a problem for public health all over the world. The infection with Blastocystis, a protozoan of controversial pathogenicity, is one of the most common among them all. In this study, the occurrence of intestinal parasites, with emphasis on Blastocystis, in patients at the Universidade Federal do Triângulo Mineiro was investigated in Uberaba (MG) through microscopy of dir...
متن کاملEpidemiology of Megninia spp. in laying flocks from the State of Minas Gerais, Brazil.
Aspects related to the epidemiology of Megninia ginglymura were studied, in order to determine predisposing factors for the occurrence in layer chicken houses of commercial farms in the State of Minas Gerais, Brazil. An observational, cross-sectional, analytical survey was conducted for identifying major risks or protection factors for infestations. Four hundred thirty-one houses located in for...
متن کاملFatal Spotted Fever Rickettsiosis, Minas Gerais, Brazil
The emergence and reemergence of a serious infectious disease are often associated with a high case-fatality rate because of misdiagnosis and inappropriate or delayed treatment. The current reemergence of spotted fever rickettsiosis caused by Rickettsia rickettsii in Brazil has resulted in a high proportion of fatal cases. We describe two familial clusters of Brazilian spotted fever in the stat...
متن کاملPlecoptera from Minas Gerais State, southeastern Brazil.
Specimens of Plecoptera collected in Minas Gerais State, Brazil were studied. Twelve previously described species were identified, Anacroneuria boraceiensis Froehlich, 2004, A. debilis (Pictet, 1841), A. itatiaiensis Baldin et al., 2013, A. polita (Burmeister, 1839), A. singularis Righi-Cavallaro & Lecci, 2010, A. stanjewetti Froehlich, 2002, A. terere Righi-Cavallaro & Lecci, 2010, A. vanini F...
متن کاملTransmission of Leishmania in coffee plantations of Minas Gerais, Brazil.
Transmission of Leishmania was studied in 27 coffee plantations in the Brazilian State of Minas Gerais. Eighteen females and six males (11.6% of the people tested), aged between 7-65 gave a positive response to the Montenegro skin test. Awareness of sand flies based on the ability of respondents to identify the insects using up to seven predetermined characteristics was significantly greater am...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Zealand journal of forestry science
سال: 2022
ISSN: ['0048-0134', '1179-5395']
DOI: https://doi.org/10.33494/nzjfs522022x116x