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© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The objective of this work was to evaluate the losses in the process, survival, uniformity and growth during an entire short rotation of a clonal planting of Eucalyptus grandis x Eucalyptus urophylla in Brazil as a function of the different morphological characteristics of the seedlings considered a proxy of seedling quality. Seedlings were classified in descending order of quality by the following treatments: A > B > C. Treatment D was composed of prime seedlings 180 days old in the nursery. Treatment A and B experienced a mortality rate of 3% 30 days after planting, while seedlings C and D showed a mortality rate of 8%. Throughout the entire planting process, treatment C had the highest total losses of 24%, which was 15% higher than the average of the other three treatments. The quality of seedlings, as determined by the IQD, positively correlated with stem diameter, leaf biomass, and PH50 at 60 days of age. However, these relationships lost significance at later ages, and the DQI could not explain the variation in volume and stand uniformity (PV50) along the rotation. Despite early differences, from 36 to 64 months, only old seedlings (Treat. D) showed a difference in wood volume to the other treatments.

Details

Title
Seedling Morphological Characteristics on Survival, Uniformity, and Growth during a Full Short Rotation in Eucalyptus grandis x E. urophylla Plantation
Author
Gabriela Gonçalves Moreira 1 ; Hakamada, Rodrigo 2 ; Renato Meulman Leite da Silva 3 ; Cristiane Camargo Zani de Lemos 4 ; Antônio Leite Florentino 5   VIAFID ORCID Logo  ; José Leonardo de Moraes Gonçalves 1   VIAFID ORCID Logo 

 Department of Forest Sciences, University of Sao Paulo, Piracicaba 05508-220, Brazil; [email protected] 
 Department of Forest Science, Federal Rural University of Pernambuco, Recife 52171-900, Brazil; [email protected] 
 Department of Planning, Sylvamo, Mogi Guaçu 13840-970, Brazil; [email protected] 
 Department of Management, Agriflora, Araraquara 14800-670, Brazil; [email protected] 
 Center for Nuclear Energy in Agriculture (CENA), University of Sao Paulo, Piracicaba 05508-220, Brazil; [email protected] 
First page
1756
Publication year
2023
Publication date
2023
Publisher
MDPI AG
e-ISSN
19994907
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2869324684
Copyright
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.