scholarly journals Management intensity and landscape configuration affect the potential for woody plant regeneration in coffee agroforestry

2021 ◽  
Vol 313 ◽  
pp. 107384
Author(s):  
Irena A. Koelemeijer ◽  
Ayco J.M. Tack ◽  
Beyene Zewdie ◽  
Sileshi Nemomissa ◽  
Kristoffer Hylander
2012 ◽  
Vol 18 (4) ◽  
pp. 263 ◽  
Author(s):  
Tom Lewis ◽  
David Taylor ◽  
Scott Swift ◽  
Valerie Debuse

We monitored an area that was revegetated with the goal of restoring a Eucalyptus tereticornis open forest on former agricultural land in central, eastern Queensland. Revegetation involved: (1) planting 60 ha of previously cleared and heavily grazed land with eight local trees species; and (2) removing cattle grazing to encourage natural regeneration in areas where some mature trees remained. We compared the revegetation site to native pasture that had also been previously cleared, with only scattered paddock trees remaining, and continued to be managed for livestock production (an area similar to the revegetation site, prior to planting) and a remnant forest (reference area). Nine years since revegetation began there was some evidence that the revegetated site was diverging from pasture in terms of understorey plant composition, sapling density and topsoil C and N. There was little divergence in terms of plant species richness (native, introduced, grass, forb and woody plant richness), herbaceous biomass and woody plant regeneration. Some monitoring plots were subject to fire (prescribed fire and or wildfire) over the period of monitoring. With increasing time since fire, the richness of native species, introduced species and grass species (both native and introduced) declined, and forb and grass species richness declined with increasing litter biomass, suggesting that the occurrence of fire and the associated removal of litter biomass has a positive influence on herbaceous diversity in this ecosystem. Woody plant regeneration persisted through lignotubers at the revegetation site and at the pasture, but this regeneration was stunted at the pasture presumably due to livestock grazing. Hence areas of former E. tereticornis forest showed promising regenerative capacity where mature trees remained and where livestock grazing was removed.


2020 ◽  
Vol 109 ◽  
pp. 103658
Author(s):  
Pavel Dodonov ◽  
Andreza Lanza Braga ◽  
Maria José Dias Sales ◽  
Rafael de Oliveira Xavier ◽  
Dalva Maria da Silva Matos

1994 ◽  
Vol 64 (3) ◽  
pp. 345-367 ◽  
Author(s):  
Robert H. Jones ◽  
Rebecca R. Sharitz ◽  
Philip M. Dixon ◽  
Debra S. Segal ◽  
Rebecca L. Schneider

2018 ◽  
Vol 28 (1) ◽  
pp. 45-55
Author(s):  
Aleksey Knyazev ◽  
Bulat Kuluev ◽  
Zilya Vershinina ◽  
Aleksey Chemeris

The purpose of the present study was to develop effective methods for callus induction, shoot regeneration, and rooting for Parasponia andersonii. Leaf explants of P. andersonii were placed on Lloyd and McCown’s (WPM) medium supplemented with various concentrations of TDZ and NAA for callus induction. Callus induction was observed on media containing 0.1 - 0.2 mg/l TDZ with 0.05 mg/l NAA. Maximum shoot regeneration was observed when the calluses were cultured on MS supplemented with TDZ and IBA. Shoots cultured on WPM medium supplemented with 0.5 mg/l IBA had the maximum rooting percentage (100) in 3 weeks. Rooted plants were transplanted to a potting mixture containing vermiculite (50%) and peat (50%) (v/v). After 2 months, more than 20% of plants survived and were transferred to the greenhouse. Thus, a new effective method has been developed for P. andersonii micropropagation that can be used in studies of plant-Rhizobium symbiosis and for the generation of transgenic Parasponia plants.Plant Tissue Cult. & Biotech. 28(1): 45-55, 2018 (June)


2006 ◽  
Vol 66 (2a) ◽  
pp. 455-462 ◽  
Author(s):  
E. T. H. Franco ◽  
L. B. Gavioli ◽  
A. G. Ferreira

The present study aimed at establishing a complete plant regeneration protocol for Didymopanax morototoni (matchwood), a native Brazilian forest species. Four types of explants (root, shoot, node, and cotyledonary leaves) were obtained from in vitro germinated seeds. In the first step, woody plant medium (WPM) with casein hydrolysate (250 mgL-1 ) and 2,4-D (1.0 and 5.0 mgL-1) were used combined with kinetin (0.1 and 1.0 mgL-1). Twenty days after inoculation, the material was evaluated. Embryogenic calli were split, transferred to expression medium with several combinations of NAA and KIN, and moved to fresh medium after 60 days. Light did not interfere in embryo expression. Somatic embryos were formed either from individual cells or cell clusters. Plantlets were obtained in WPM medium and 10 gL-1 of sucrose with no plant regulator, or using 0.1 mgL-1 BAP and 0.5 mgL-1GA. Plantlets from somatic embryos of D. morototoni developed in 33% of the cases.


2016 ◽  
Vol 222 ◽  
pp. 193-199 ◽  
Author(s):  
Matthias De Beenhouwer ◽  
Lore Geeraert ◽  
Jan Mertens ◽  
Maarten Van Geel ◽  
Raf Aerts ◽  
...  

Ecosystems ◽  
2016 ◽  
Vol 20 (3) ◽  
pp. 630-644 ◽  
Author(s):  
Beatriz Ibáñez ◽  
Lorena Gómez-Aparicio ◽  
José M. Ávila ◽  
Ignacio M. Pérez-Ramos ◽  
Teodoro Marañón

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