scholarly journals VEGETATIVE PROPAGATION AND INITIAL GROWTH PERFORMANCE OF Streblus asper LOUR. – A TROPICAL MEDICINAL TREE

2018 ◽  
Vol 6 (3) ◽  
pp. 606-612
Author(s):  
MAH Nagalakshmi ◽  
◽  
Sahana Vishwanath ◽  
KT Prasanna ◽  
◽  
...  
Keyword(s):  
Growth Performance ◽  
Vegetative Propagation ◽  
Initial Growth ◽  
Medicinal Tree ◽  
Streblus Asper

scholarly journals Growth performance and wood structure of wavy grain sycamore maple (Acer pseudoplatanus L.) in a progeny trial

2021 ◽  
Vol 78 (1) ◽  
Author(s):  
Mona Quambusch ◽  
Cornelia Bäucker ◽  
Volker Haag ◽  
Andreas Meier-Dinkel ◽  
Heike Liesebach
Keyword(s):  
Growth Performance ◽  
Vegetative Propagation ◽  
Seed Orchard ◽  
Breeding Systems ◽  
Acer Pseudoplatanus ◽  
Wood Structure ◽  
Progeny Trial ◽  
Plus Tree ◽  
Sycamore Maple ◽  
Figure Type

Abstract • Key message Wavy grain, a rare figure type of wood, leads to highly priced timber in Acer pseudoplatanus L. The influence of this trait on growth performance and its causes are not known. Analyzed wavy and straight grain sycamore maple progenies show comparable growth performance in a field trial. Stability of wavy grain after vegetative propagation is confirmed and genetic inheritance indicated. • Context Wavy grain is a rare figure type of wood resulting from undulating fiber growth that leads to a decorative and highly priced timber in Acer pseudoplatanus L. with top positions on auction sales. Nevertheless, neither the influence of this trait on growth performance is known, nor have the causes been disentangled. • Aims Our objectives were to find out if wavy grain figure influences growth parameters essential for log quality and to gain insight into the causes of wavy grain by the analysis of a progeny trial and a seed orchard. • Methods In a progeny trial with 30-year-old F-1-offspring from selected wavy grained and straight grained trees, trunk diameter, tree height, and trunk shape were evaluated. Additionally, 21 trees of the trial and selected plus tree-grafts of a seed orchard were felled and analyzed for occurrence and intensity of wavy grain structure. • Results No effect of the wavy and straight grain parentage on growth was observed in the progeny trial. Of the felled trees, over 30% showed evidence of wavy grain compared to rare occurrence in natural stands. Wood structure analysis of plus tree scions confirmed the stability of wavy grain after vegetative propagation. • Conclusion Wavy grain seems to be genetically inherited, and there seems to be no statistically significant difference in commercially relevant traits in the progeny. This highlights the value of including wavy grain as a desired attribute in breeding systems of maple.

scholarly journals Growth performance and resistance to ground late frosts of Fagus sylvatica L. plantation treated with a brassinosteroid compound

2017 ◽  
Vol 63 (No. 3) ◽  
pp. 117-125
Author(s):  
Gallo Josef ◽  
Baláš Martin ◽  
Linda Rostislav ◽  
Kuneš Ivan
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
European Beech ◽  
Frost Damage ◽  
Control Treatment ◽  
Initial Growth ◽  
Height Range ◽  
Fagus Sylvatica L ◽  
Collar Diameter ◽  
Root Collar

We measured the initial growth performance of a young plantation of European beech treated with a brassinosteroid compound prior to planting and compared it with a control treatment: we assessed heights, root collar diameters and mortality rate during the period 2012–2015. The trees showed posterior damage by ground frost after a substantial late frost event on the night of 4–5 May 2014. Therefore, we evaluated the post-stress vitality of trees, subsequent height increment from spring to August, and the height range of the damage.<br />Mean height, root collar diameter, and mortality rate did not show any significantly better performance in the brassinosteroid treatment over the control treatment. Neither did the application treatment have a significant positive effect on the resistance of beech to late frosts. The severe frost damage was most intense at 30 cm above ground, and rapidly declined with increased height.

scholarly journals Impact of Auxins on Vegetative Propagation through Stem Cuttings of Couroupita guianensis Aubl.: A Conservation Approach

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Mahipal S. Shekhawat ◽  
M. Manokari
Keyword(s):  
Acetic Acid ◽  
Vegetative Propagation ◽  
Adventitious Shoots ◽  
Conservation Strategy ◽  
Soil Conditions ◽  
Natural Soil ◽  
Naphthalene Acetic Acid ◽  
Stem Cuttings ◽  
Medicinal Tree ◽  
Couroupita Guianensis

The present study explores the potential of exogenous auxins in the development of adventitious shoots and roots from shoot cuttings of Couroupita guianensis (Nagalingam), a threatened tree. Experiments were conducted to assess the effect of various concentrations of auxins on shoot and root morphological traits of stem cuttings in the greenhouse. Amongst the auxins tested, significant effects on number of shoot buds’ induction and their growth were observed with α-Naphthalene Acetic Acid (NAA) treated nodal cuttings. Cent percentage of the stem cuttings of C. guianensis were rooted and shoots were induced when pretreated with 400 mg L−1 NAA for 5 min. Maximum 79% of stem cuttings responded to pretreatment of 300 mg L−1 indole-3-butyric acid (IBA) for 5 min, and 75% of stem cuttings induced shoots with 400 mg L−1 indole-3-acetic acid (IAA). Presence of at least 5 nodes on stem cuttings was found to be prerequisite for root and shoot induction. About 92% of plants were survived under natural soil conditions raised from the stem cuttings. This is the first report of vegetative propagation of C. guianensis through stem cuttings which could be used for conservation strategy and sustainable utilization of this threatened medicinal tree.

Standardization of vegetative propagation in Oroxylum indicum (L.) Vent.: A threatened medicinal tree

2018 ◽  
Vol 19 (1) ◽  
pp. 113 ◽  
Author(s):  
M. S. Sandesh ◽  
G. Raviraja Shetty ◽  
K. Souravi ◽  
P. E. Rajasekharan ◽  
M. Ganapathi ◽  
...  
Keyword(s):  
Vegetative Propagation ◽  
Medicinal Tree ◽  
Oroxylum Indicum

scholarly journals Effect of Coconut Water on Pre-Sowing Treatments Additive on Seed Germination and Initial Seedlings Growth Performance of Kamagong (Diospyros discolor)

2020 ◽  
pp. 58-71
Author(s):  
Marne G. Origenes ◽  
Renato L. Lapitan
Keyword(s):  
Seed Germination ◽  
Growth Performance ◽  
Germination Percentage ◽  
Mean Value ◽  
Coconut Water ◽  
Leaf Width ◽  
Indigenous Species ◽  
Initial Growth ◽  
Seedling Height ◽  
Number Of Leaves

Mabolo (Diospyros discolor), which is an indigenous species locally known as Kamagong, is popularly called “iron-wood”. With over-exploitation, these species are now threatened and are becoming extinct. Hence, it is the only way to conserved and save this economically valuable species by using nursery techniques with appropriate pre-sowing treatments. Therefore, the present study was attempted to evaluate the effect of coconut water on pre-sowing treatments additive on seed germination and initial growth performance of Kamagong (D. discolor). The seeds were extracted and subjected to the following treatments for 12 hours: Soaking in 100% water which is the control (T1), soaking with 50% of coconut water and 50% water (T2), and soaking in 100% coconut water (T3). The results showed that T3 had the highest germination mean value (78.33%), mean seedling height (11.80 cm) and mean number of leaves (2.04). By contrast, T2 (50% coconut water + 50% water) obtained the least germination mean value (76.67%), mean seedling height (11.63 cm) and mean number of leaves (2.00). However, there were no significant differences in the germination percentage, seedling height and number of leaves among all treatments at (p ≤ 0.05). The seeds subjected to T2 and T3 were significantly (p ≤ 0.05) better than seeds subjected to T1, having a mean root collar diameter (RCD) value of 3.98 mm, 3.75 mm and 3.48 mm, respectively. In terms of leaf measurements, the seedlings subjected to T2 and T3 had the highest leaf width value of 5.18 cm and 4.97 cm, respectively, whereas the seedlings subjected to T1 had the significantly lowest leaf width of 4.88 cm. Moreover, there was no significant effect among all treatments in terms of leaf and root length. Furthermore, it was observed in the study that fungal pathogens should also be taken into account as the pathogens are associated with the reduction of the germination percentage of the D. discolor seeds. Also, the study found out that seeds treated with 50% and 100% coconut water positively influenced the germination and initial seedling growth performance of D. discolor.

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