Genetic progress in the breeding population of Zeyheria tuberculosa (Ipê-felpudo): from theoretical predictions to clonal recombination orchard assembly

Phenotypic and genotypic evaluation of Parkia platycephala families: a proposal for pre-selection

“…The greater the environmental influence in the tests (CV e ), the lower the genetic values observed (h 2 a , h 2 w , h 2 m and b ̂) (Table 1), which is consistent with results obtained in studies on other forest species (Menegatti et al 2016, Kampa et al 2020, Corrêa et al 2021, Garuzzo et al 2021. As noted, these estimates may vary according to populations, environments, traits, nature of the traits, age, and estimation methods used (Pires et al 2011).…”

“…The families that stood out are excellent candidates for pre-selection, as they performed well from the plantlet stage and show a coincidence across rankings of 61% (Table 2). The efficiency of a genetic improvement program can be expressed by the genetic gain over time (Lustri et al 2021); therefore, the selection of potential mother trees should be based on well characterized families with positive genetic gains (Garuzzo et al 2021).…”

“…The characterization of the genetic variability of base populations of forest species in the form of progeny tests has been well documented in research carried out under field conditions (Garuzzo et al 2021, Lustri et al 2021, Souza et al 2021. As a way of anticipating this characterization, morphophysiological assessments at the seedling (Kampa et al 2020) and plantlet stages (Menegatti et al 2016, Corrêa et al 2021) have also been conducted.…”