scholarly journals Growth Responses of Acacia mangium and Paraserianthes falcataria Seedlings on Different Soil Origin under Nursery Condition

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Tirtha Ayu Paramitha ◽  
Djumali Mardji
Keyword(s):  
Coal Mining ◽  
Secondary Forest ◽  
Root Nodules ◽  
Survival Rates ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Imperata Cylindrica ◽  
Growth Responses ◽  
Paraserianthes Falcataria ◽  
Soil Origin

The objective of the present study was to examine the growth responses of Acacia mangium (mangium) and Paraserianthes falcataria (sengon) seedlings growing on different soil origin under nursery condition. This study was started in September 2012 and terminated in March 2013.  The seedlings were grown from seeds sown in a plastic box filled with sterilized sands. One week after sowing, the seedlings were transplanted into polybags contained sterilized soils originated from secondary forest, Imperata cylindrica grassland and ex-coal mining. The number of all seedlings were 180 seedlings consisted of 3 different soils, 2 species of seedlings with 10 seedlings replicated 3 times. Assessment was conducted one week after transplanting, then subsequently monitored every 2 weeks, except dry weighing and counting nodules were performed at the end of the study. A completely randomized design was used in this study. The data was analyzed using Costat software. The study resulted that the different of soil origin influenced on all growth variables of mangium and sengon of 4.5 months old. The survival rate of seedlings, height and diameter increments, dry weight and root nodules were better in both species of seedlings growing on soil originated from secondary forest and Imperata grassland compared with the soil from ex-coal mining. But the survival rates of sengon seedlings were higher than that of mangium on these three soils. The highest dry weight of sengon seedlings was achieved on soil originated from secondary forest. In the present study, soil originated from secondary forest increased more in weight of shoot than root, so that the shoot-root ratio was unbalanced more than one. Based on the results of this study, it is recommended that soil from secondary forest and Imperata grassland can be used as growing media for mangium and sengon seedlings in the nursery.

scholarly journals Pertumbuhan Semai Sengon (Paraserianthes Falcataria (L.) Nielsen) Pada Media Tanah Bekas Tambang Kapur Dengan Penambahan Pupuk Kompos Dan NPK

2019 ◽  
Vol 10 (1) ◽  
pp. 51-57
Author(s):  
Basuki Wasis ◽  
Siti Halimatus Sa'idah
Keyword(s):  
Seedling Growth ◽  
Root Nodules ◽  
Dry Weight ◽  
Soil Condition ◽  
Major Effect ◽  
Paraserianthes Falcataria ◽  
Soil Medium ◽  
Mining Sites ◽  
Randomized Design ◽  
Npk Fertilizer

Limestone mining activities are damaging soil and enviroment. Revegetation becomes an obligation on every mining sites. Paraserianthes falcataria is one of many species that suitable to be planted in revegetation site. Adding compost and NPK fertilizer can improve soil’s condition. This research objective is to analyze the effect of compost and NPK fertilizer on Paraserianthes falcataria seedlings growth and the exact appropriate dosage for limestone mining’s soil condition improvement. The design used in this research is completely randomized design with two factors. The result shows that addtion of compost on tailing media doesn’t give major effect or statistically not significant on seedling growth of height, diameter, the amount of root nodules, and shoot-root ratio, but statistically significant on wet and dry weight of the seedlings. NPK fertilizer addition on tailing media is statistically significant on the seedling growth of diameter, wet weight, and shoot-root ratio, but not significant different on height, dry weight, and the amount of root nodules. Interaction between compost and NPK fertilizer on media gives effect only at 95% of confidence level. K1N5 sample (with 100 gram composts and 5 gram of NPK fertilizer) gives the best respond on seedling’s growth. Very high levels of Ca in the soil medium will be toxic to the Paraserianthes Falcataria plant.Keywords: Compost, limestone mining, NPK fertilizer, Paraserianthes falcataria

scholarly journals Plant growth-promoting properties of cultivable endophytic root nodule bacterial isolates from Acacia mangium Willd

2016 ◽  
Vol 6 ◽  
Author(s):  
Fatin Syafikah Ismail ◽  
Masnindah Malahubban ◽  
Mohammad Hailmi Sajili ◽  
Zakry Fitri Ab. Aziz
Keyword(s):  
Plant Growth ◽  
Growth Promotion ◽  
Root Nodules ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Winged Bean ◽  
Bacterial Isolates ◽  
Root And Shoot Length ◽  
Plant Growth Promoting ◽  
Growth Promoting

<strong>The present study was conducted to isolate and characterize endophytic bacteria isolated from root nodules of <em>Acacia mangium</em> Willd and subsequently tested for plant growth promotion. A total of five bacterial isolates were successfully isolated and subjected to morphological and biochemical examination. The present study found that all isolates had almost similar morphologically but differed in growth rate. All isolates were negative on N-free and IAA tests, though positive on P solubilisation test. The present study demonstrated that the inoculation with isolate FSI3 had significantly improved (p&lt;0.05) root and shoot dry weight of winged bean seedlings as compared to uninoculated control. However, the inoculation did not significantly alter (p&gt;0.05) root and shoot length of winged bean seedlings. The present study suggests that the stimulatory effect by isolate FSI3 may be associated with P-solubilizing ability. A further test on isolate FSI3 is considered essential in future to uncover the several other possible plant growth-promoting mechanisms. </strong>

Shading Effects on Growth and Partitioning of Plant Biomass in Cogongrass (Imperata cylindrica) from Shaded and Exposed Habitats

Weed Science ◽  
1980 ◽  
Vol 28 (6) ◽  
pp. 735-740 ◽  
Author(s):  
D. T. Patterson
Keyword(s):  
Leaf Area ◽  
Plant Biomass ◽  
Dry Weight ◽  
Imperata Cylindrica ◽  
Leaf Biomass ◽  
Growth Responses ◽  
Net Assimilation ◽  
Total Dry Weight ◽  
Sun And Shade ◽  
Shading Effects

The growth responses of cogongrass [Imperata cylindrica(L.) Beauv.] were studied in a controlled-environment greenhouse with a day/night temperature of 29/23 C, under full available light and 56 and 11% of full light. The cogongrass plants were grown from stem and rhizome propagules originating from an interstate highway median, a pecan [Carya illinoensis(Wangenh.) K. Koch] plantation, and a pine (Pinusspp.) forest. After 89 days, the plants from all three populations produced, on average, three times as much total dry weight and leaf area in full available sunlight as in 56% full light and 20 times as much as in 11% full light. The distribution of plant biomass into rhizomes decreased with shading, whereas the distribution into leaves increased. The distribution of leaf biomass as leaf area also increased with shading, with the result that the plants grown in 11% full light had leaf area ratios about 2.5 times greater than those grown in full light. Reductions in dry matter production with shading were due to significant reductions in both net assimilation rate and leaf area duration or total amount of leaf area present. The plants from the shaded and exposed habitats generally did not differ significantly in their responses to shading. Thus, there is little evidence for the presence of sun and shade ecotypes in the populations of cogongrass studied.

scholarly journals PERTUMBUHAN DAN KADAR KLOROFIL DAUN Acacia mangium PADA LAHAN BEKAS TAMBANG TIMAH DI PULAU BANGKA

2019 ◽  
Vol 4 (1) ◽  
pp. 7-11
Author(s):  
Robika Robika ◽  
Eka Sari
Keyword(s):  
Chlorophyll Content ◽  
Rapid Growth ◽  
Root Length ◽  
Root Nodules ◽  
Economic Value ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Acidic Ph ◽  
Root Dry Weight ◽  
Leaf Chlorophyll

Tin-mined land has sandy characteristics (more than 95%), is very porous, low KTK, acidic pH and nutrient poor. Revegetation programs have been carried out to improve soil fertility using local and exotic species (Acacia mangium). Rapid growth, tolerance to various environmental conditions and high economic value are the reasons for choosing A. mangium as a revegetation plant. This study aims to analyze the growth and chlorophyll content of A. mangium leaves which grow in two locations of tin-mined land (Tanjung Ratu Village and Rebo Village). The results showed that A. mangium which was grown on a younger tin mined land (in Tanjung Ratu Village) showed an increase in root dry weight, root length, number of root nodules, and decreased leaf chlorophyll levels. On older tin mined land (in Rebo Village), root dry weight, root length, and number of root nodules were lower, but chlorophyll content increased. The characters affected can be used to determine the ability of tolerance and adaptation of A. mangium in tin mined land.

scholarly journals The Application of Ectomycoriza In Ex-Limestone Mining Growth Media to Assist the Growth of Mangium (Acacia mangium)

2019 ◽  
Vol 7 (3) ◽  
pp. 332
Author(s):  
Devi Aprillia ◽  
Melya Riniarti ◽  
Afif Bintoro
Keyword(s):  
Growth Parameters ◽  
Root Nodules ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Growth Media ◽  
High Survival ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Total Dry Weight ◽  
Poor Soil

Ex-limestone mining quarry has poor soil fertility, both biological, chemical, and physical condition due to the mining process. Marginal land conditions such as ex-limestone mining quarry require high survival seedlings. Application of ectomycorrhizal fungi is an alternative that can be done to improve the success of restoration. Acacia mangium is one of the plants that could be colonized by many types of mycorrhizal such as ectomycorrhiza. This research aimed to determine the growth of A. mangium seedlings in ex-limestone mining growth media and the effect of ectomycorrhiza application on the growth of A. mangium. The research used a completely randomized design with six treatments and five replications. Treatment consisted of 100% soil with mycorrhiza, 100% soil without mycorrhiza, 50% soil + 50% limestone tailings + mycorrhiza, 50% soil + 50% limestones tailings without mycorrhiza, 100% tailing with mycorrhiza and 100% tailing without mycorrhiza. The seedlings used in the study germinated from seeds taken from Lampung Timur Regency. The seeds germinated in sand for one month, then used as the research material. The measurement taken were  height, diameter, number of leaves, leaf area, measured were root length, canopy dry weight, and total dry weight. The colonization of ectomycorrhiza is measured by counting the percentage of colonization. The symbiosis with rhizobium measured by number of root nodules. Data were tested for variance analysis, followed by Least Significance Different Test at significant level of 1% and 5%. The results showed that the percentage of A. mangium life was high, reaching 100%. All growth parameters showed that plant colonized by mycorrhiza has remarkably better values compared to non-mycorrhiza plants.Keywords: limestone, ectomycoriza, mangium, phytoremediation

scholarly journals Mutation in the ntrR Gene, a Member of the vap Gene Family, Increases the Symbiotic Efficiency of Sinorhizobium meliloti

2001 ◽  
Vol 14 (7) ◽  
pp. 887-894 ◽  
Author(s):  
Boglárka Oláh ◽  
Erno Kiss ◽  
Zoltán Györgypál ◽  
Judit Borzi ◽  
Gyöngyi Cinege ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Pathogenic Bacteria ◽  
Sinorhizobium Meliloti ◽  
Root Nodules ◽  
Nifh Gene ◽  
Dry Weight ◽  
Nodule Occupancy ◽  
Gene Encoding ◽  
Symbiotic Efficiency ◽  
Host Interactions

In specific plant organs, namely the root nodules of alfalfa, fixed nitrogen (ammonia) produced by the symbiotic partner Sinorhizobium meliloti supports the growth of the host plant in nitrogen-depleted environment. Here, we report that a derivative of S. meliloti carrying a mutation in the chromosomal ntrR gene induced nodules with enhanced nitrogen fixation capacity, resulting in an increased dry weight and nitrogen content of alfalfa. The efficient nitrogen fixation is a result of the higher expression level of the nifH gene, encoding one of the subunits of the nitrogenase enzyme, and nifA, the transcriptional regulator of the nif operon. The ntrR gene, controlled negatively by its own product and positively by the symbiotic regulator syrM, is expressed in the same zone of nodules as the nif genes. As a result of the nitrogen-tolerant phenotype of the strain, the beneficial effect of the mutation on efficiency is not abolished in the presence of the exogenous nitrogen source. The ntrR mutant is highly competitive in nodule occupancy compared with the wild-type strain. Sequence analysis of the mutant region revealed a new cluster of genes, termed the “ntrPR operon,” which is highly homologous to a group of vap-related genes of various pathogenic bacteria that are presumably implicated in bacterium-host interactions. On the basis of its favorable properties, the strain is a good candidate for future agricultural utilization.

scholarly journals Isolation and Characterization of Nodule-AssociatedExiguobacterium sp. from the Root Nodules ofFenugreek(Trigonella foenum-graecum) and Their Possible Role in Plant Growth Promotion

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Geetha Rajendran ◽  
Maheshwari H. Patel ◽  
Sanket J. Joshi
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Root Nodules ◽  
Dry Weight ◽  
Gram Positive ◽  
Associated Bacteria ◽  
Trigonella Foenum Graecum ◽  
Isolation And Characterization ◽  
Root And Shoot Length

One of the ways to increase the competitive survivability of rhizobial biofertilizers and thus achieve better plant growth under such conditions is by modifying the rhizospheric environment or community by addition of nonrhizobial nodule-associated bacteria (NAB) that cause better nodulation and plant growth when coinoculated with rhizobia. A study was performed to investigate the most commonly associated nodule-associated bacteria and the rhizospheric microorganisms associated with theFenugreek(Trigonella foenum-graecum) plant. Isolation of nonrhizobial isolates from root nodules ofFenugreekwas carried out along with the rhizospheric isolates. About 64.7% isolates obtained fromFenugreeknodules were gram-negative coccobacilli, 29.41% were gram-positive bacilli, and all rhizospheric isolates except one were gram-positive bacilli. All the isolates were characterized for their plant growth promoting (PGP) activities. Two of the NAB isolates M2N2c and B1N2b (Exiguobacterium sp.) showed maximum positive PGP features. Those NAB isolates when coinoculated with rhizobial strain—S. meliloti, showed plant growth promotion with respect to increase in plant’s root and shoot length, chlorophyll content, nodulation efficiency, and nodule dry weight.

The role of nematodes, fungi, bacteria, and abiotic factors in the etiology of apple replant problems in the Granite Belt of Queensland

1994 ◽  
Vol 34 (8) ◽  
pp. 1177 ◽  
Author(s):  
SR Dullahide ◽  
GR Stirling ◽  
A Nikulin ◽  
AM Stirling
Keyword(s):  
Abiotic Factors ◽  
Dry Weight ◽  
Pratylenchus Penetrans ◽  
Growth Responses ◽  
Granite Belt ◽  
Pathogenicity Tests ◽  
Phosphorus And Potassium ◽  
Orchard Soils ◽  
Fusarium Tricinctum

Investigations of apple replant failure in the Granite Belt suggested that the problem had a complex etiology. Soil fertility was an important factor because apple seedlings grew best in replant soils with high levels of nitrogen, phosphorus, and potassium. Consistent improvements in the growth of apple seedlings were obtained when typical orchard soils were treated with fenamiphos, confirming that lesion nematode was also an important component of the disease complex. Pratylenchus penetrans had been recognised as a pathogen of apples, and pathogenicity tests showed that P. jordanensis, another species widely distributed in the Granite Belt, had similar effects. Growth responses of apple seedlings were greater when soil was pasteurised than when it was treated with fenamiphos, suggesting that root pathogens other than nematodes were involved in apple replant failure. However, the primary cause probably differed between orchards because soils did not respond in the same manner to pasteurisation and nematicide treatments. Pathogenicity tests with 14 bacteria associated with apple roots showed no effect on the growth of apple seedlings. However, Fusarium tricinctum, Cylindrocarpon destructans, and Pythium sp. were implicated in the problem because they were consistently recovered from discoloured roots. In a factorial experiment involving nematodes and fungi in pots, P. jordanensis, P. penetrans, E. tricinctum, and C. destructans reduced the dry weight of apple roots but there was no interaction between nematodes and fungi.

scholarly journals Pengaruh Pemberian Sub Soil dan Arang Tempurung Kelapa Terhadap Pertumbuhan Semai Akasia (Acacia mangium. Willd) Pada Media Bekas Tambang Pasir

2019 ◽  
Vol 10 (3) ◽  
pp. 166-172
Author(s):  
Basuki Wasis ◽  
Lastiti Sanubari
Keyword(s):  
Key Words ◽  
Seedling Growth ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Coconut Shell ◽  
Diameter Growth ◽  
Sand Mining ◽  
Significant Treatment ◽  
Long Period ◽  
Coconut Charcoal

Sand mining which continuously done may cause the sand of amount in the bottom of river decreasing and may result, to the destruction of the river if occured for a long period. Revegetation activity must be done on some former sand mining river boundaries. Acacia (Acacia mangium) might be able to grow in low nutrient soil. The purposes of this research is to get information about sub soil and coconut charcoal granting effects towards acacia seedling growth on former sand mining medium.The research showed that the interaction of the added sub soil and coconut shell charcoal is significant to the heightand diameter parameter of acacia seedling while sub soil addition is significant to Dry Weight Total (DWK) parameter. Interaction of 250 g sub soil, 60 g charcoal on 750 g sand is the best treatment to enhance seedling tall growth for about 88.73%. Interaction of 750 g sub soil on 250 g sand is the most significant treatment for diameter parameter for about 71.21% diameter growth. The best treatment for Dry Weight Total (DWK) is shown by interaction of 250 g sub soil and 250 g charcoal on 500 g sand. Charcoal granting independently is not significant to addition acacia seedling growth. The addition of sub soil only showed the best result of 750 g sub soil granting with diameter growth around 71.21%. Key words: Acacia mangium. Willd., charcoal, sand mining, sub soil

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