Physical and mechanical properties of plantation-grown<i>Acacia auriculiformis</i>of three different ages

Shukla,; Rao, R. V.; Sharma, S. N.; Kumar, Pradeep; Sudheendra, R.; Shashikala, S.

doi:10.1080/00049158.2007.10675007

Cited by 23 publications

(15 citation statements)

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“…This Acacia species is considered to be one of the most promising because of its ability to thrive on a wide range of harsh environmental conditions, such as under poor soil fertility and extended dry periods. It has been introduced as an advanced plantation species for various purposes in countries such as Malaysia, Indonesia, Vietnam, India, West and South Africa as well as South America (Nor Aini et al, 1994;Turnbull et al, 1997;Shukla et al, 2007;Phi, 2009).…”

Section: Introductionmentioning

confidence: 99%

In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

et al. 2016

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The effects of 6-Benzylaminopurine (BA), different basal medium, sucrose concentration and gelling agent were investigated for shoot induction and multiplication of Acacia auriculiformis. Nodal explants derived from 5-month-old seedlings yielded the highest shoot multiplication rate in Murashige and Skoog medium (MS) with 0.44 µM BA, 30 g/L sucrose and 2 g/L Gelrite. The highest mean number of shoots (10) and mean length of shoots (5.07mm) were also obtained in this medium. Qualitative observation of the shoots cultured in 0.44 µM BA were greener and vigorous in growth as compared to shoots cultured on higher concentrations of BA (22.2 µM). MS medium produced a significantly higher number of shoots (18) compared to Woody Plant Medium (WPM) (11) and B5 medium (10). Media solidified with different gelling agents also produced a significantly different number of shoots with 2 g/L Gelrite produced the highest number of shoots (23). The highest percentage of shoots rooted was found in the MS medium without any growth regulators (40.0%) followed by medium supplemented with Indole-3-butyric acid (IBA) at 9.84 µM and the combination of 9.84 µM IBA with 5.37 µM α-naphthalene acetic acid (NAA) (33.3%). MS medium without any plant growth regulators produced the highest mean root length (84.33mm), whereas medium supplemented with 9.84 µM IBA produced the highest mean number of roots per shoot (4.33). Out planting of in vitro rooted shoots in shredded coconut husk as the substrate gave the highest percentage of survival (90%) during acclimatization in the greenhouse.

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Section: Introductionmentioning

confidence: 99%

In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

et al. 2016

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“…It is a multipurpose tree species and has been used as a main plantation tree species for production of pulp and paper (Jahan et al, 2008;Turnbull et al, 1997), sawn wood (Phi et al, 2009) and for rehabilitation purposes in many countries. It has been introduced as advanced plantation species into countries such as Malaysia, Indonesia, Vietnam, India, West and South Africa as well as South America (Phi, 2009;Shukla et al, 2007;Nor aini et al, 1994;Turnbull et al, 1997) for various purposes.…”

Section: Introductionmentioning

confidence: 99%

Selection and Screening of Superior Genotypes for Quality Planting Stock Based on Vegetative Growth Performance of Some Selected 12-Year-Old <i>Acacia</i> Species

Kumar¹,

Parameswari²,

Chin³

et al. 2016

OJF

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Production of quality wood is a big problem in forestry plantation since trees grown in plantation of some high value temperate and tropical hardwood species tend to produce low value, short butt logs and bolts due to crooked stems, low fork heights and delayed shedding of lower branches. Result from existing Acacia plantation in Malaysia indicated that most existing Acacia plantation trees especially Acacia auriculiformis and Acacia mangium, fork very heavily which leads to the formation of multiple leaders more than one and some are fork so close to the ground that they will produce little to no merchantable wood. In this context, a research study was initiated to select and recommend the best performing tree species or provenance suited for timber production in Malaysia with respect to growth and other characteristics. Species/provenance/progeny test was conducted on four species of Acacia namely, A. mangium, A. auriculiformis, A. crassicarpa and A. aulococarpa, each with 4 provenances originated from Papua New Guinea (PNG) and Queensland (QL). The growth performance of the provenances was monitored in terms of some quantitative and qualitative characteristics to evaluate the genetic variation and growth performance of a base breeding population. 20 progenies for each species were selected and randomly planted with 16 trees representing each progenies in a trial plot laid out in a randomized complete block * Corresponding author. M. S. Kumar et al. 218design consisting of four blocks as replication. The study showed that there were significant different (p < 0.05) between species, provenance and progenies for their growth performance. Generally with regard to growth, A. mangium performed better compared to other Acacia species in all of the aspect tested and it was followed by A. crassicarpa, A. aulococarpa and A. auriculiformis. There were also significant differences between provenance within regions and progenies within provenances in all quantitative and qualitative traits tested in this study. Generally, provenance and progenies selected from PNG excelled those from QL both in quantitative and qualitative characteristics. The top performing progenies of Acacia species are CG 1854 of (Bensbach WP) and KN000107 (SW of Boset WP) of A. mangium, BVG2609 (Bensbach WP) of A. crassicarpa, BVG 00835 (WP Morehead) and MM1016 (Arufi E Morehead WP) of A. aulococarpa and JSL363 (Wenlock River) and BVG 2657 (Bansbach) of A. auriculiformis. Note: BF = Bole form, SS = Stem straightness, FA = Forking ability, BS = Branch size, BA = Branch angle; Values are expressed in Mean ± Standard Error; Significant differences among species are indicated by different lower case letters (p < 0.05).

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“…It is a fast growing nitrogen fixing multipurpose tree species which prevents exposure of soils to direct radiation from the sun using its perennial foliage as well as crown cover, and reduce the evaporation rate, resulting in less salt accumulation in the top soils (Tham & Liew, 2012;Khan et al, 2014;Sohel et al, 2016). Furthermore, it is extensively used to provide shade, form windbreaks, and the wood has been used widely for charcoal, fuel, pulp, tool handles, oars, paddles, packing cases, and furniture manufacturing (Shukla et al, 2007;Chowdhury et al, 2013). Therefore, if Acacia auriculiformis can be brought under plantation in the saline prone area, the existing agrarian land will be more productive through minimizing the detrimental effects of salts as well as to sustain crop productivity, which will help to maintain a wide range of ecological security.…”

Section: Methodsmentioning

confidence: 99%

Morpho-physiological response of Acacia auriculiformis as influenced by seawater induced salinity stress

et al. 2016

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Aim of the study: To evaluate the morpho-physiological changes of Acacia auriculiformis in response to seawater induced salinity stress along with its tolerance limit.Area of study: Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Material and methods:Three saline treatments (4, 8, 12 dS m -1 ) were applied to six-month aged Acacia auriculiformis seedlings from January 2014 to June 2014 and the tap water was used as control treatment. To observe salinity effects, the following parameters were measured by using various established techniques: plant height and leaf number, plant biomass, shoot and root distribution as well as shoot and root density, water uptake capacity (WUC), water saturation deficit (WSD) and water retention capacity (WRC), exudation rate, and cell membrane stability.Main results: Diluted seawater caused a notable reduction in shoot and root distribution in addition to shoot and root density, though plant height, leaf number and plant biomass were found to be decreased to some extent compared to control plants. Water status of the plant also altered when plants were subjected to salinity stress. Nevertheless, membrane stability revealed good findings towards salinity tolerance.Research highlights: Considering the above facts, despite salinity exerts some negative effects on overall plant performance, interestingly the percent reduction value doesn't exceed 50% as compared to control plants, and the plants were successful to tolerate salinity stress till the end of the experiment (150 days) through adopting some tolerance mechanisms.Keywords: Salt stress; halophytes; growth parameters; WUC; exudation rate; membrane stability. Abbreviations used: BSMRAU (Bangabandhu Sheikh Mujibur Rahman Agricultural University); RCBD (randomized complete block design); DATI (days after treatment imposition); RWC (relative water content); WUC (water uptake capacity); WSD (water saturation deficit); WRC (water retention capacity); FW (fresh weight); DW (dry weight); TW (turgid weight); ROS (reactive oxygen species).Citation: Mezanur-Rahman, M., Anamul-Haque, M., Arafat-Islam-Nihad, S., Mahmudul-Hasan-Akand, M., Ruhul-Amin-Howlader, M. (2016). Morpho-physiological response of Acacia auriculiformis as influenced by seawater induced salinity stress. Forest Systems, Volume 25, Issue 3, e071. http://dx

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Physical and mechanical properties of plantation-grownAcacia auriculiformisof three different ages

Cited by 23 publications

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In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

Selection and Screening of Superior Genotypes for Quality Planting Stock Based on Vegetative Growth Performance of Some Selected 12-Year-Old <i>Acacia</i> Species

Morpho-physiological response of Acacia auriculiformis as influenced by seawater induced salinity stress

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Physical and mechanical properties of plantation-grownAcacia auriculiformisof three different ages

Cited by 23 publications

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In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

In Vitro micropropagation of Acacia auriculiformis from selected juvenile sources

Selection and Screening of Superior Genotypes for Quality Planting Stock Based on Vegetative Growth Performance of Some Selected 12-Year-Old &lt;i&gt;Acacia&lt;/i&gt; Species

Morpho-physiological response of Acacia auriculiformis as influenced by seawater induced salinity stress

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Selection and Screening of Superior Genotypes for Quality Planting Stock Based on Vegetative Growth Performance of Some Selected 12-Year-Old <i>Acacia</i> Species