Survival rate and shoot growth of grafted Dahurian larch (Larix gmelinii var. japonica): a comparison between Japanese larch (L. kaempferi) and F₁hybrid larch (L. gmelinii var. japonica × L. kaempferi) rootstocks

Abstract

We grafted scions of Dahurian larch (Larix gmelinii var. japonica) onto Japanese larch (L. kaempferi) and F1 hybrid larch (L. gmeli­nii var. japonica × L. kaempferi) rootstocks and examined root­stock-scion compatibility by assessing the survival rate (SR) in two independent experiments. Scion overgrowth on the root­stock was not observed. SR was not significantly different among rootstocks due to large interquartile ranges (IQR) among clones within a rootstock type. Results suggested that the SR was more dependent on the clonal characteristics of the scion than on the growth vigor of the rootstock. Shoot elonga­tion of grafts on F1 hybrid rootstock was superior to that of grafts on Japanese larch rootstock. Selection of an appropriate combination of scion and rootstock may improve the SR of grafted Dahurian larch and shorten the cultivation period.

Peer Review #2 of "Survival of side grafts with scions from pure species Pinus engelmannii Carr. and the P. engelmannii × P. arizonica Engelm. var. arizonica hybrid (v0.1)"

“…Carr. hybrid rootstocks, survival was 92.6% in the first year of grafting, because the scions from pure species trees were very compatible with hybrid rootstocks (Kita et al, 2018). In our study, a similar percentage of survival (83.3%) was found in grafts made with scions from Pinus engelmannii x P. arizonica hybrid trees on pure species Pinus engelmannii rootstocks (Fig.…”

“…In certain regions of the state of Durango, putative hybrids have been observed as a product of natural cross between Pinus species, such as P. engelmannii x P. arizonica, which have adapted to sites with adverse climatic conditions (Ávila-Flores et al, 2016a). In grafting, the use of hybrids has been studied in conifer species (Marchal et al, 2017;Kita et al, 2018), however, in pines, it has not been studied much (Lott et al, 2003). In contrast, some plants, such as tomato and watermelon have been studied extensively, and survival levels greater than 80% have been reported (Djidonou et al, 2016;Xu et al, 2016;Zhang et al, 2019).…”

Survival of side grafts with scions from pure species Pinus engelmannii Carr. and the P. engelmannii × P. arizonica Engelm. var. arizonica hybrid

“…Carr. hybrid rootstocks, survival was 92.6% in the first year of grafting, because the scions from trees of the pure species were very compatible with hybrid rootstocks (Kita et al, 2018). In our study, a similar percentage of survival (83.3%) was found in grafts made with scions from P. engelmannii × P. arizonica hybrid trees on pure species P. engelmannii rootstocks (Fig.…”

“…In grafting, the use of hybrids has been studied in conifer species (Marchal et al, 2017;Kita et al, 2018), however, in pines, it has not been studied much (Lott et al, 2003). In contrast, some plants, such as tomato and watermelon have been studied extensively, and survival levels greater than 80% have been reported (Djidonou et al, 2016;Xu et al, 2016;Zhang et al, 2019).…”

Efecto del riego, la fertilización y el contenedor en la respuesta a la injertación de plántulas de Pinus patula Schltdl. & Cham.

“…La púa y el patrón o portainjerto constituyen la planta compuesta, y unidos forman una planta nueva con genotipos distintos; en la cual, la púa, el brote o la yema donada por el árbol tiene características genéticas deseadas y constituye el componente de la parte superior del injerto, mientras que el patrón o portainjerto es la parte inferior de la planta que proporciona el sistema radical, además de agua y nutrimentos para el desarrollo del injerto (Wright, 1976;Mudge et al, 2009;Ranjith e Ilango, 2017;Kita et al, 2018). Una de las técnicas más utilizadas para este procedimiento en especies de coníferas es el injerto de hendidura terminal, también conocida como injerto terminal (Muñoz et al, 2013).…”