scholarly journals Neolamarkia cadamba – A Potential Tree Species for Domestication through Agroforestry System

2019 ◽  
Vol 12 (4) ◽  
Author(s):  
S. Saravanan
Keyword(s):  
Tree Species ◽  
Agroforestry System

scholarly journals Impact of planting density on wheat crop grown under different tree species in tarai agroforestry system of central himalaya, India

2018 ◽  
Vol 10 (1) ◽  
pp. 30-36
Author(s):  
Kavita Satyawali ◽  
Sumit Chaturvedi ◽  
Neema Bisht ◽  
V.C. Dhyani
Keyword(s):  
Tree Species ◽  
Eucalyptus Camaldulensis ◽  
Triticum Aestivum L ◽  
Agroforestry System ◽  
Growth And Yield ◽  
Planting Density ◽  
Melia Azedarach ◽  
Wheat Crop ◽  
Wheat Growth ◽  
Yield Attributes

A field trial based Agroforestry system was established at Pantnagar during Rabi season 2012-13 for predicting the effect of spacing on growth and yield of wheat (Triticum aestivum L.) under Eucalyptus camaldulensis and Melia azedarach. The experiment was carried out in split-plot design consisting of two tree species in main plot, viz, Eucalyptus camaldulensis and Melia azedarch and four spacing treatments in sub-plot viz, 3.0m×1.0m, 3.0m×1.5m, 3.0m×2.0m and 3.0m×2.5m with three replications. The wheat crop variety“UP-2338” was sown on December 06, 2012 and harvested on April 27, 2013. Among the tree species, the maximum (15.1 q /ha) and significantly higher grain yield with 21.8% increment was recorded under Melia as compare to Eucalyptus. Whereas, among the different spacings, the wheat growth in terms of dry biomass at 120 DAS (495.4/m2 ), yield attributes and yield in terms of grain (16.0 q/ha), straw (29.4 q/ha) and biological yield (45.4 q/ha) under Melia was significantly higher at 3 × 2.5 m spacing as compared to other planting density. The correlation coefficient (r) studies exhibited that wheat growth and yield attributing characteristics shows significantly (p<0.05) high degree (r=0.75 to 1) positive correlation with each other. The investigation was done to find out the proper planting density for intercropping of wheat with tree species without comprising the wheat growth and enhancing its sustainability.

scholarly journals Floristic evolution in an agroforestry system cultivation in Southern Brazil

2016 ◽  
Vol 88 (2) ◽  
pp. 973-982 ◽  
Author(s):  
LUÍS C.R. SILVA ◽  
SEBASTIÃO A. MACHADO ◽  
FRANKLIN GALVÃO ◽  
AFONSO FIGUEIREDO FILHO
Keyword(s):  
Tree Species ◽  
Diversity Index ◽  
Age Groups ◽  
Mixed Forest ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
First Year ◽  
Traditional Agroforestry ◽  
Floristic Evolution ◽  
Over Time

ABSTRACT Bracatinga (Mimosa scabrella Bentham) is an important pioneer tree species in Ombrophylous Mixed Forest of Brazil and is widely used as an energy source. In traditional agroforestry systems, regeneration is induced by fire, then pure and dense stands known as bracatinga stands (bracatingais) are formed. In the first year, annual crops are intercalated with the seedlings. At that time the seedlings are thinned, then the stands remain at a fallow period and cut at seven years old. The species is very important mainly for small landowners. We studied the understory species that occur naturally during the succession over several years in order to manage them rationally in the future and maintain the natural vegetation over time. Three to 20 year-old Bracatinga stands were sampled between 1998 and 2011. All tree species with diameter at breast height (DBH) ≥ 5 cm were measured.The floristic evolution was assessed with respect to Sociability Index, the Shannon Diversity Index and the Pielou Evenness Index. Graphs of rank/abundance over different age groups were evaluated using the Kolmogorov-Smirnov test. We identified 153 species dispersed throughout the understory and tend to become aggregated over time.

scholarly journals Farmers' perceptions towards agroforestry systems in North and South Kordofanstates, Sudan

2015 ◽  
Vol 4 (2) ◽  
pp. 53-67
Author(s):  
Kamal Eldin Mohammed Fadl ◽  
Salah E Mahmoud ◽  
Zainab M Hamad
Keyword(s):  
Tree Species ◽  
Family Income ◽  
Gum Arabic ◽  
Crop Productivity ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Environmental Benefits ◽  
Current Status ◽  
Acacia Senegal ◽  
North And South

This study was conducted during 2010 and 2011 in North and South Kordofan States with objectives of to identify and assess the most important agroforestry systems, to characterize major tree species in different agroforestry system, to prioritize major constraints on agroforestry systems in the region, and to study the current status of gum Arabic trees and their contribution on farmers livelihood. Data were collected through community meeting, individual interviews and direct field observation. The common agroforestry systems in the region are scatter trees on farm land, followed by wind breaks and boundary planting. The important trees in the study area are Acacia senegal83%, followed by Fadherbia albida 46%, Ziziphus spina- christia43% and Balanites aegyptiaca 41%. The most important field crops that cultivated in agroforestry system are groundnuts, millet, sorghum, sesame and roselle. The environmental benefits of trees in farm which was identified by the respondents include protection of farm against wind erosion, improvement of the soil properties, improvement of the micro-climate and providing a source for income which was indicated by the majority of respondents. Across all sites 93% of respondents showed that gum Arabic have a significant contribution to their family income. The study recommended that a multi-purpose tree species such as Acacia senegal should be maintained for amelioration of soils fertility and increase crop productivity in the fragile ecosystems such as that of the study sites. DOI: http://dx.doi.org/10.3126/ije.v4i2.12624 International Journal of Environment Vol.4(2) 2015: 53-67

scholarly journals RESPON PERKECAMBAHAN BENIH SENGON LAUT (Paraserianthes falcataria (L.) Nielsen) TERHADAP ALELOPATI DAUN DAN RHIZOME ALANG-ALANG (Imperata cylindrica L.)

EUGENIA ◽  
2017 ◽  
Vol 23 (1) ◽  
Author(s):  
Euis F.S. Pangemanan ◽  
Semuel P. Ratag
Keyword(s):  
Experimental Design ◽  
Seed Germination ◽  
Plant Species ◽  
Tree Species ◽  
Agroforestry System ◽  
Forest Area ◽  
Imperata Cylindrica ◽  
Paraserianthes Falcataria ◽  
Toxic Compound ◽  
Extract Concentration

ABSTRACT   A plant species can release a toxic compound which can inhibit the growthof other plant species.  The success of planting certain tree species, both inside and outside the forest area with agroforestry system can be affected by allelopathy of other plant species. The objective of this research was to study the response of sengon laut (Paraserianthes falcataria (L.) Nielsen) seed germination on cogongrass (Imperata cylindrica L.) leaves and rhizomes allelopathy. The experimental design was a randomized complete design with four replicates.  The treatments were leaves and rhizomes extracts of cogongrass, and water as control.  The results showed that the extract concentration of 20 % (weight/volume), then the sengon laut seed germination was not affected by the extracts. Keywords:  sengon laut, cogongrass, allelopathy, seed germination

scholarly journals Effect of Azadirachta excelsa and Melia azedarach extracts on soybean germination

2017 ◽  
Vol 9 (4) ◽  
pp. 346-351
Author(s):  
RUMMI AZAHRA GUMILAR ◽  
NURHENI WIJAYANTO ◽  
ARUM SEKAR WULANDARI
Keyword(s):  
Tree Species ◽  
Growth And Development ◽  
Agroforestry System ◽  
Melia Azedarach ◽  
Stimulant Effect ◽  
Fast Growing ◽  
Stem Leaf ◽  
Allelopathic Compound ◽  
Allelopathic Compounds ◽  
Fast Growing Species

Gumilar RA, Wijayanto N, Wulandari AS. 2017. Effect of Azadirachta excelsa and Melia azedarach extracts on soybean germination. Nusantara Bioscience 9: 346-351. Azadirachta excelsa and Melia azedarach are potential tree species developed in agroforestry system. Both plants are fast growing species and good for timber use. However, there is an inadequacy on both species due to their allelopathic compound contents. Allelopathic compounds in the plants are distributed from root, stem, leaf, and fruit; which at certain concentrations could inhibit germination, growth, and development of other plants. The objective of this study was to analyze the effects of root, leaf, and twig extracts of M. azedarach and A. excelsa on the germination of soybean. Result of this study showed that the root, leaf, and twig extracts of M. azedarach and A. excelsa were able to inhibit the development of soybean. 5 % twig extract of M. azedarach significantly inhibited the germination by 77.75%. Leaf and twig extracts of A. excelsa at 1.25% concentration has shown to provide stimulant effect on the germination of soybean.

scholarly journals Trade-Offs and Synergies Between Food and Fodder Production and Other Ecosystem Services in an Actively Restored Forest, Natural Forest and an Agroforestry System in Ghana

2021 ◽  
Vol 4 ◽  
Author(s):  
Frederick Gyasi Damptey ◽  
Enrique G. de la Riva ◽  
Klaus Birkhofer
Keyword(s):  
Ecosystem Services ◽  
Carbon Storage ◽  
Tree Species ◽  
Agroforestry System ◽  
Natural Forest ◽  
Above Ground Biomass ◽  
Natural Forests ◽  
Ground Biomass ◽  
Trade Offs ◽  
Fodder Production

Active restoration of degraded areas with multi-purpose tree species has been proposed as a measure to counter the losses from deforestation and mitigate consequences for local human communities. In a restoration project at a former mining site in Ghana, ecosystem services (ES) proxies in an actively restored forest were compared to a local agroforestry system and a natural forest. The results provide information about trade-offs and synergies between proxies of multiple ES(s). ES proxies were assessed according to the following categories: (a) food-tree ES: biomass of food and fodder trees, (b) other trees ES: biomass of fuelwood, medicine or mulch trees, (c) ES-providing arthropods: the number of detritivorous and predaceous arthropods, (d) carbon storage, and (e) tree diversity. Eight replicated plots with sizes of 20 m × 20 m were established in each forest type, and the following ES proxies were quantified: tree diversity was estimated as taxonomic richness of all trees with a diameter at breast height ≥ 10 cm in each plot. Tree species were then classified into ES categories (food, fodder, fuelwood, medicine, or mulch). Ground-dwelling arthropods were sampled for 10 weeks with five pitfall traps in each plot and categorized as decomposers and predators. Tree above-ground biomass was estimated based on the measured tree diameter, height, and specific wood density using an improved allometric equation. The above-ground biomass was later converted into carbon storage by assuming 50% of the above-ground biomass of each tree. ES proxies based on tree biomass were highest in the natural forest. Fodder, medicine, fuelwood, and mulch ES proxies were significantly higher in the restored forest than the agroforestry system. Decomposer arthropods were most dominant in the natural forest, followed by the restored forest and the agroforestry system. Predacious arthropods were more dominant in the restored forest than in the other forest types. Carbon storage was highest in the natural forest, followed by the agroforestry system and the restored forest. The actively restored forest took an intermediate position between the agroforestry system and the natural forest regarding values for all nine ES proxies. Out of the 14 possible relationships between food or fodder and other ES proxies, five were significantly positive (synergies) with no observed trade-offs (significant negative relationships). High fodder production in the restored and natural forests went along with higher values of other biomass ES proxies and numbers of beneficial arthropods, while higher food biomass also correlated positively with numbers of decomposing arthropods. Our results document that active restoration of degraded sites provides a valuable framework to promote ES provision to local communities compared to agroforestry system, but at the cost of lower food and fuelwood biomass and carbon storage compared to natural forests.

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