yield of pinus taeda l. in thinned stand in the campos de cima da serra region, rio grande do sul.
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Abstract
This work was carried out with the objective of studying the yield of Pinus taeda L., planted in an initial spacing of 3 x 2 m, located in Canela, Rio Grande do Sul state. The amostral population was submitted to one and two selective thinning, beyond a control sample, without thinning. The selective low thinning was conducted with reduction of the basal area to levels of 28 m2/ha. At age 17, the total yield of the control sample, without thinning, was 886.3 m3ha-1; with one thinning at age 11 the yield was 756.6 m3ha-1, resulting in losses of yield of 14.6% compared to the control; with two selective at ages 11 and 15, the yield was 732.9 m3ha-1, resulting in losses of yield in relation with the control sample, without thinning, of 17.3%. The selective thinning allowed a significant gain in diameter, up to age 17, with the execution of a selective thinning at age 11 an average diameter of 33.4 cm; with two selective thinning at ages 11 and 15 an average diameter of 33.5 cm; and an average diameter of 24.3 cm in the control sample, without thinning.
| Reference Key |
elesbo2011cinciayield
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|---|---|
| Authors | ;Luiz Ernesto Grillo Elesbão;Paulo Renato Schneider |
| Journal | journal of organic chemistry |
| Year | 2011 |
| DOI |
10.5902/198050982754
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| URL | |
| Keywords | Keywords not found |
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