scholarly journals Introduction Pages

2018 ◽  
Vol 10 (2) ◽  
pp. I-VI
Author(s):  
Radu E. SESTRAS
Keyword(s):  
Life Science ◽  
Seed Priming ◽  
Floristic Diversity ◽  
Forest Types ◽  
Vegetation Analysis ◽  
Silybum Marianum ◽  
Germplasm Collections ◽  
Threat Status ◽  
Forest Division ◽  
Ultrasonic Assisted

Notulae Scientia Biologicae (http://www.notulaebiologicae.ro), Issue 2, Volume 10, 2018: The papers published in this issue (http://www.notulaebiologicae.ro/index.php/nsb/issue/current) represent interesting novelties in different topics of life science. Among the exciting researches, we invite you to find news about: combining microsatellite markers and ampelography for better management of Romanian grapevine germplasm collections; investigation of the breeding mechanism of African yam bean (Sphenostylis stenocarpa); ultrasonic assisted seed priming to alleviate aging damages to milk thistle (Silybum marianum) seeds; floristic diversity, vegetation analysis and threat status of plants in various forest types in Dharmapuri Forest Division, Tamilnadu, Southern India etc. Notulae Scientia Biologicae journal has moved to online-only publication at the start of 2017. At the same time, we maintain our standard publication, as printed form, with 'classic' style - volume, issue, pagination.

scholarly journals Floristic Diversity, Vegetation Analysis and Threat Status of Plants in Various Forest Types in Dharmapuri Forest Division, Tamilnadu, Southern India

2018 ◽  
Vol 10 (2) ◽  
pp. 297-304
Author(s):  
Umeshkumar L. TIWARI ◽  
Kaliamoorthy RAVIKUMAR
Keyword(s):  
Tree Species ◽  
Diversity Index ◽  
Southern India ◽  
Eastern Ghats ◽  
Composition Analysis ◽  
Floristic Diversity ◽  
Forest Types ◽  
Threat Status ◽  
Diversity Assessment ◽  
Forest Division

The present paper deals with the study conducted to know the floristic diversity assessment and vegetation composition analysis in various forest types of Dharmapuri Forest division situated in Eastern Ghats of Southern India in the state of Tamilnadu. A total of 352 species of 233 genera and belonging to 79 families were recorded. The quantitative features such as density and important value index (IVI) varied greatly among forest and different forest types. In the present study the diversity index of shrubs and herbs were found to be higher than the tree species. The presence of high number of higher girth class of tree species and low number of sapling and seedling indicates that the present forest is old and exhibiting the low regeneration.

scholarly journals Floristic Diversity and Vegetation Analysis of Plants from Various Forest Types in Hosur Forest Division, Tamil Nadu, Southern India

2018 ◽  
Vol 10 (4) ◽  
pp. 597-606
Author(s):  
Umeshkumar L. TIWARI ◽  
Kaliamoorthy RAVIKUMAR
Keyword(s):  
Species Diversity ◽  
Tamil Nadu ◽  
Diversity Index ◽  
Southern India ◽  
Eastern Ghats ◽  
Composition Analysis ◽  
Floristic Diversity ◽  
Forest Types ◽  
Diversity Assessment ◽  
Forest Division

The study deals with the floristic diversity assessment and vegetation composition analysis in various forest types from Hosur Forest division situated in Eastern Ghats of Southern India, in the state of Tamil Nadu. The study recorded 468 species of plants belonging to 283 genera and 91 families, including Angiosperms (464 species), Pteridophytes (3 species) and Bryophytes (1 species). Of the total, 94 species are trees, 12 are lianas, 70 are shrubs, 34 species are climbers, 194 species are herbs, sedges 7, grasses 21, ferns 3 and 1 species of moss. The five most abundant families in Hosur Forest Division were Fabaceae (45 spp.), Poaceae (34 spp.), Acanthaceae (30 spp.), Euphorbiaceae (28 spp.) and Rubiaceae (25 spp.). The quantitative features such as density and important value index (IVI) varied greatly among forest and in different forest types. In the present study, the diversity index of shrubs and herbs were found to be higher than that of trees. The maximum species diversity was recorded in Southern dry mixed deciduous forest (SDMDF) followed by Southern Thorn Forest (STF) and Southern Thorn Scrub (STS). The species diversity (H) was recorded the highest for SDMDF (5.61) followed by STF (5.18) and the lowest for STS (5.12). The presence of large number of higher girth class tree species and low number of sapling and seedling indicates that the present forests investigated are old and exhibiting low regeneration.

scholarly journals Ultrasonic Assisted Seed Priming to Alleviate Aging Damages to Milk Thistle (Silybum marianum) Seeds

2018 ◽  
Vol 10 (2) ◽  
pp. 275-281
Author(s):  
Seyed A. MOOSAVI ◽  
Seyed A. SIADAT ◽  
Adel POSHTDAR ◽  
Fatemeh DIREKVAND
Keyword(s):  
Unsaturated Fatty Acids ◽  
Accelerated Aging ◽  
Aging Treatment ◽  
Seed Priming ◽  
Milk Thistle ◽  
Silybum Marianum ◽  
Ultrasonic Assisted ◽  
Aging Conditions ◽  
Pharmaceutical Properties ◽  
Aged Seeds

Milk thistle is a medicinal plant with high pharmaceutical properties to help relief of liver diseases. In this study, the effects of ultrasonic assisted seeds priming (20, 40, 80 and 160 s) with a frequency of 24 kHz and Power of 400 W was investigated on seed enhancement of aged seeds of Milk thistle. Results of the study, showed that as the aging damages increased, the longer sonication results in the better germination. Root growth was significantly improved using ultrasonic energy. Seeds aged for 24 hours, were exposed to ultrasonic produced for 20 seconds exhibited root length of 10.39 cm which was 5.48 cm with no ultrasonic treatment with the same aging duration. The maximum malondialdehyde activity was observed at the 96-hour aging treatment (87.83 nmol/grFW) while the lowest activity was observed at no aged and 24-hour aged seeds (7.28 nmol/grFW). It is suggested that there is a negative correlation between seedling vigor and MAD activity. It was revealed that fatty acid composition of Silybum marianum seed oil is highly influenced by the aging treatment. The variations of unsaturated fatty acids significantly increased in aged seeds. Our results showed that under accelerated aging conditions, ultrasonic assisted seed priming could not provide satisfactory enhancement to seed germination while no aged seeds germination was significantly improved using ultrasonic assisted seed priming.

scholarly journals Floristic diversity and vegetation analysis of Wadi Al-Noman, Mecca, Saudi Arabia

2013 ◽  
Vol 37 ◽  
pp. 894-907 ◽  
Author(s):  
Kadry ABDEL KHALIK ◽  
Mohamed EL-SHEIKH ◽  
Abeer EL-AIDAROUS
Keyword(s):  
Saudi Arabia ◽  
Floristic Diversity ◽  
Vegetation Analysis

scholarly journals Population Status of Commercially Important Medicinal Plants in Dehradun Forest Division, Uttarakhand (India)

2013 ◽  
Vol 5 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Ninad B. RAUT ◽  
Umeshkumar L. TIWARI ◽  
Bhupendra S. ADHIKARI ◽  
Gopal S. RAWAT ◽  
Srikant CHANDOLA
Keyword(s):  
Medicinal Plants ◽  
Timber Production ◽  
Phyllanthus Emblica ◽  
Forest Types ◽  
Aegle Marmelos ◽  
Important Species ◽  
Forest Division ◽  
Commercially Important ◽  
Terminalia Bellirica ◽  
Justicia Adhatoda

The objective of forest management in the tropics, in recent decades, has shifted from timber production to biodiversity conservation and maintenance of life support system. However, past forestry practices have greatly influenced the structure of plant communities, preponderance of foreign invasive species, populations of high value medicinal plants as well as other non-wood forest products. We assessed the abundance and distribution of medicinal plants in managed and undisturbed forests of Dehradun Forest Division (DFD), Uttarakhand (India). A total of 80 transects (each 1 km long) were laid in various categories of forest types in DFD. This paper deals with distribution, availability and regeneration status of five commercially important species viz., Justicia adhatoda, Aegle marmelos, Phyllanthus emblica, Terminalia bellirica and Terminalia chebula, across different forest types. The study reveals that open canopy forest patches, Lantana infested patches and Acacia catechu-Dalbergia sissoo (Khair -Shisam) woodlands in the eastern part of the DFD have excellent potential for the production and sustainable harvest of Justicia adhatoda. Areas those are less suitable for timber production viz., open hill forests, have greater potential for conservation and development of Aegle marmelos, Phyllanthus emblica and Terminalia bellirica. For the production and management of high value medicinal plants in the DFD these ecological considerations need to be kept in mind.

scholarly journals Effect of seed priming with kinetin on germination indices and proline activity of Silybum marianum L. under drought stress conditions

2015 ◽  
Vol 9 (1) ◽  
pp. 6-11
Author(s):  
Abolfazl Masoumi Zavariyan ◽  
Mojtaba Yousefi Rad ◽  
Mohsen Asghari
Keyword(s):  
Drought Stress ◽  
Germination Rate ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Silybum Marianum ◽  
Randomized Design ◽  
Seedling Length ◽  
Germination Indices

For investigation of the effect of seed priming by kinetin on germination indices and proline activity of Silybum marianum  L. under drought stress, factorial experiment based on completely randomized design with two factor includingdifferent concentrations of kinetin (0, 10 and 20 ppm) and different levels of drought stress including 0, -6 and -12 barat three replicates was carried out. According to the results, drought stress and kinetin individualy cause to decreases of germination percentage, germination rate, seedling length, seed vigor and seedling dry weight but uses of kinetin in drought stress condition improvment of them. Also, drought stress cause to increases of proline content and catalase activity. Therefore, seed priming with 10 ppm kinetin at drought stress was improved the germination indices of Silybum marianum L.DOI: http://dx.doi.org/10.3126/ijls.v9i1.11919 International Journal of Life Sciences Vol.9(1) 2015 6-11

scholarly journals Alleviate Seed Ageing Effects in Silybum marianum by Application of Hormone Seed Priming

2015 ◽  
Vol 7 (3) ◽  
pp. 316-321
Author(s):  
Seyed Ata SIADAT ◽  
Seyed Amir MOOSAVI ◽  
Mehran SHARAFIZADEH
Keyword(s):  
Seed Germination ◽  
Seed Quality ◽  
Morphological Structure ◽  
Seed Priming ◽  
Silybum Marianum ◽  
Duration Of Treatment ◽  
Seed Vigour ◽  
Germination Characteristics ◽  
Poor Seed ◽  
Seed Ageing

Most of the medicinal plants have seed dormancy or poor seed germination. This is due to their natural compounds or their morphological structure. Existence of such mechanisms makes the seeds able to endure harsh environments, stressful conditions or natural ageing. Different seed enhancement treatments were proposed in order to improve seed germination. In this study, it was examined Silybum marianum seed longevity (0, 48 and 72 hour of ageing) and the response to seed priming when using different concentrations of cytokinin (50, 200, 350 and 500 ppm) and different duration of treatment (8, 12 and 24 hour). Results revealed that ageing could be successfully alleviated using seed priming. Seed ageing significantly affected seed germination and vigour. Application of cytokinin considerably improved seed vigour in aged and non aged seeds. The most effective seed priming treatment was with 500 ppm cytokine, with the duration of 24 hours. In conclusion, it can be recommend the used of plant growth regulators like cytokine, as a good priming agent, to recover losses of seed quality and improve germination characteristics.

The Forest Types in Aborlan Guba System, Palawan Island, Philippines

2014 ◽  
Vol 7 (1) ◽  
Author(s):  
LITA B. SOPSOP ◽  
INOCENCIO E. BUOT, JR.
Keyword(s):  
Protected Area ◽  
Environmental Variables ◽  
Multivariate Regression ◽  
Potassium Level ◽  
Multivariate Regression Analysis ◽  
Forest Types ◽  
Vegetation Analysis ◽  
Palawan Island ◽  
Water Holding

A floral survey was conducted in Aborlan Guba System, Aborlan, Palawanfollowing the quadrat technique of vegetation analysis by Mueller-Dombois &Ellenberg (1974) and Pacardo et al. (2000) to determine the forest zonationtherein and the environmental variables that influenced the vegetation pattern.Sixty-six quadrats, each for trees (10m x 10m) and saplings (2m x 2m) andseedlings and herbaceous vegetations (1m x 1m), were established throughout thestudy area. Four vegetation associations were distinguished from cluster analysis.Results of multivariate regression analysis reveal that elevation, air temperature,moisture content, water holding capacity, pH and potassium level of the soil, andhuman disturbance significantly influenced the spatial distribution of tree species.Human impact was inversely proportional to species richness (r2= 0.968). Sincethe area is encroached by the locals, the whole area must be categorized as a CoreZone for its immediate protection. Declaring it as a Protected Area under theNIPAS law ensures the long-term protection of the system.Keywords: Ecology, Forest, vegetation association, environmental factors, Palawan,Philippines

Sign in / Sign up

Export Citation Format

Share Document