scholarly journals Effects of Phytohormones and Alternative Sources on the Propagation of Ternstroemia cameroonensis Cheek. by Marcotting in the Lebialem Highlands, Cameroon

2021 ◽  
pp. 52-60
Author(s):  
Francoline Jong Nkemnkeng ◽  
Mendi Grace Anjah ◽  
Walter Ndam Tacham ◽  
Christiana Ngyete Nyikob Mbogue ◽  
Victor-François Nguetsop
Keyword(s):  
Overall Survival ◽  
Forest Management ◽  
Butyric Acid ◽  
Environmental Conditions ◽  
Vegetative Propagation ◽  
Root Length ◽  
Mortality Rates ◽  
Routine Practice ◽  
Survival Percentage ◽  
Alternative Sources

Marcotting is a method of vegetative propagation which still finds its relevance in the present day forest management and routine practice to produce viable seedlings for the regeneration of Ternstroemia cameroonensis. There is dearth of information regarding the propagation of T. cameroonensis by marcotting. Hence effects of phytohormone application (Indole-3-acetc acid, Indole-3-butyric acid) and alternative sources (coconut water) on the propagation of T. cameroonensis by marcotting were investigated in the Lebialem Highlands. Mortality rates, number of roots, root length as well as marcotts position in the crown was evaluated. The propagation trials were carried under natural environmental conditions. Marcotts had an overall survival percentage of 35.41%. Those established at the middle of the crown had the highest survival percentage (15.27%) followed by those at the lower (11.80 %). Also marcotts established on branches with larger diameter (4-6 cm) and shorter length (50 cm) had the highest survival percentage (20.13 and 19.44 respectively). Again marcotts treated with IBA and CW had the best performance compared to other pre-treatments. According to the result, T. cameroonensis can be amenable through marcotts. 

Vegetative Propagation of Fig ‘Sawari’ and ‘Tarnab Inzar’ Through Stem Cuttings

2018 ◽  
pp. 17-20
Author(s):  
Ibrar Hussain ◽  
Abdul Samad ◽  
Nisar Naeem ◽  
Ziaullah ◽  
Hafeez ur Rehman ◽  
...  
Keyword(s):  
Vegetative Propagation ◽  
Root Length ◽  
Block Design ◽  
Market Value ◽  
Stem Cuttings ◽  
Horticultural Crops ◽  
Survival Percentage ◽  
Good Market ◽  
Randomized Complete Block Design ◽  
Number Of Leaves

Fig is a perennial fruit tree with high economic importance among horticultural crops in some countries. The fruit has a good market value, both at national and international level. The objective of this work was to evaluate the potential of vegetative propagation of fig cvs. ‘Sawari’ and ‘Tarnab Inzar’ through stem cuttings with different lengths, aiming to improve the production of nursery plants. The experiment was carried out from January to April 2017 and it was laid out in randomized complete block design with different sizes of cuttings (10, 15 and 20 cm) examined for two cultivars ‘Sawari’ and ‘Tarnab Inzar’, with three replications keeping 20 cuttings per treatment. The variables studied were number of leaves, number of roots, root length, shoot length, sprouting percentage and survival percentage. Cuttings size of fig cultivars had a significant temporal variation in the percentage of successful rooting and survival of cuttings. Based on data regarding number of leaves, number of roots, root length, sprouting percentage, it was concluded that 20 cm long cuttings collected for both cultivars are the best option for commercial production of fig nursery plants.

scholarly journals Effect of Indole-3-Butyric Acid on Clonal Propagation of Swietenia macrophylla through Branch Cutting

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Md. Salim Azad ◽  
Md. Abdul Matin
Keyword(s):  
Overall Survival ◽  
Butyric Acid ◽  
Clonal Propagation ◽  
Root Number ◽  
Swietenia Macrophylla ◽  
Rooted Cuttings ◽  
Survival Percentage ◽  
Shoot Number ◽  
Number Of Leaves ◽  
Branch Cutting

The study discloses the scopes of clonal propagation Swietenia macrophylla through branch cutting treated with IBA. A total of four hundred cuttings were used with four replications to assess the rooting ability. The study exposed significant (p<0.5) difference of rooted cuttings among the treatments. The highest (62.51%) rooting percent was observed in cutting with 0.4% IBA treatment. In addition, root number and its length per cutting were increased with increasing IBA concentration (p<0.5). The experiment showed significant (p<0.5) difference of sprouting among the treatments. The highest (67.27%) percent of sprouting was observed in cuttings with 0.4% solution, which showed a similar fashion of percent of rooting. The study also showed significant (p<0.5) difference of shoot number per cutting, the length of the longest shoot, and number of leaves per cutting among the treatments. The overall survival of rooted cuttings after transfer to polybag significantly (p<0.5) differed among the cuttings treated with different IBA solution. The highest survival percentage (69.67%) was observed in the cuttings rooted with 0.4% IBA treatment and the lowest (55.6%) survival was found in cuttings treated with control. The use of 0.4% IBA treatment is suggested for rooting of juvenile leafy branch cutting of S. macrophylla.

scholarly journals Vegetative Stem Cutting Propagation of Idesia polycarpa

2016 ◽  
Vol 34 (3) ◽  
pp. 91-93
Author(s):  
Barrett C. Wilson ◽  
Matthew D. Taylor ◽  
Peter J. Zale
Keyword(s):  
Butyric Acid ◽  
Vegetative Propagation ◽  
Root Length ◽  
Statistical Difference ◽  
Harvest Date ◽  
Treatment Combination ◽  
Cutting Propagation ◽  
Ornamental Tree ◽  
Auxin Concentration ◽  
The Impact

Idesia polycarpa, Igiri tree, is a deciduous ornamental tree with 10 to 20 cm (4 to 8 in) long panicles of yellow-green flowers in spring and summer, maturing to ornamental orange-red berries in fall and winter. There are limited vegetative propagation protocols established for I. polycarpa. The objective of this study was to evaluate the effectiveness of different timing and auxin concentration combinations on rooting success of shoot tip cuttings. In 2009, there were nine collection dates of softwood cuttings during the summer and three indole-3-butyric acid (K-IBA) concentrations of 0, 5,000, and 10,000 mg·L−1 (PPM). Increasing the K-IBA rate to 10,000 mg·L−1 resulted in higher rooting percentages for most collection dates, though rooting percentage did not exceed 32% for any given treatment combination. The date cuttings were taken did not affect rooting percentage. Cuttings that did not receive K-IBA did not root. In 2010, the impact of cutting harvest date (softwood in June and semi-hardwood in September) and the effect of K-IBA rate (0, 10,000, and 20,000 mg·L−1) on rooting was determined. There was no statistical difference between the two higher concentrations, but both improved rooting versus the nontreated control, which did not root. Softwood cuttings showed a higher rooting percentage and greater root length compared to semi-hardwood cuttings.

scholarly journals The Impact of Different Environmental Conditions during Vegetative Propagation on Growth, Survival, and Biochemical Characteristics in Populus Hybrids in Clonal Field Trial

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 892
Author(s):  
Valda Gudynaitė-Franckevičienė ◽  
Alfas Pliūra
Keyword(s):  
Climate Change ◽  
Phenotypic Plasticity ◽  
Environmental Conditions ◽  
Vegetative Propagation ◽  
Genotypic Variation ◽  
Hybrid Poplar ◽  
Field Trials ◽  
Biochemical Traits ◽  
Suburban Areas ◽  
Growing Conditions

To have a cleaner environment, good well-being, and improve the health of citizens it is necessary to expand green urban and suburban areas using productive and adapted material of tree species. The quality of urban greenery, resistance to negative climate change factors and pollution, as well as efficiency of short-rotation forestry in suburban areas, depends primarily on the selection of hybrids and clones, suitable for the local environmental conditions. We postulate that ecogenetic response, phenotypic plasticity, and genotypic variation of hybrid poplars (Populus L.) grown in plantations are affected not only by the peculiarities of hybrids and clones, but also by environmental conditions of their vegetative propagation. The aim of the present study was to estimate growth and biochemical responses, the phenotypic plasticity, genotypic variation of adaptive traits, and genetically regulated adaptability of Populus hybrids in field trials which may be predisposed by the simulated contrasting temperature conditions at their vegetative propagation phase. The research was performed with the 20 cultivars and experimental clones of one intraspecific cross and four different interspecific hybrids of poplars propagated under six contrasting temperature regimes in phytotron. The results suggest that certain environmental conditions during vegetative propagation not only have a short-term effect on tree viability and growth, but also can help to adapt to climate change conditions and grow successfully in the long-term. It was found that tree growth and biochemical traits (the chlorophyll A and B, pigments content and the chlorophyll A/B ratio) of hybrid poplar clones grown in field trials, as well as their traits’ genetic parameters, were affected by the rooting-growing conditions during vegetative propagation phase. Hybrids P. balsamifera × P. trichocarpa, and P. trichocarpa × P. trichocarpa have shown the most substantial changes of biochemical traits across vegetative propagation treatments in field trial. Rooting-growing conditions during vegetative propagation had also an impact on coefficients of genotypic variation and heritability in hybrid poplar clones when grown in field trials.

scholarly journals Growth of mango (Mangifera indica L.) rootstocks as influenced by pre-sowing treatments

2017 ◽  
Vol 9 (1) ◽  
pp. 582-586
Author(s):  
R. J. Patel ◽  
T. R. Ahlawat ◽  
A. I. Patel ◽  
J. J. Amarcholi ◽  
B. B. Patel ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Root Length ◽  
Mangifera Indica ◽  
Lateral Roots ◽  
Weight Ratio ◽  
Dry Weight ◽  
Shoot Length ◽  
Shoot Dry Weight ◽  
Survival Percentage ◽  
Total Dry Weight

An experiment was carried out at Navsari Agricultural University, Navsari during 2014 to evaluate the effect of pre-sowing treatments on survival percentage and growth of mango rootstocks. Mango stones were soaked in aqueous solutions of GA3 (100 and 200 ppm), Beejamruth (2 % and 3 %) and Thiourea (1 % and 2 %) for 12 and 24 hours. The trial was evaluated in Completely Randomized Design based on factorial concept and the treatments were replicated thrice. Imposition of treatments led to significant differences at 5 % level of significance for all parameters chosen in this study. Mango stones when treated with Thiourea at 1 % had the maximum shoot length (49.93 cm), root length (34.38 cm), shoot dry weight (21.08 g) and total dry weight (26.36 g). The highest number of lateral roots (10.90) and survival percentage (64.17) was observed in mango stones dipped in 100 ppm GA3. Between the two soaking duration, soaking mango stones for 24 hours recorded higher values for shoot length (45.03 cm), root length (32.79 cm), number of lateral roots (9.83), survival percentage (62.72), shoot root fresh weight ratio (4.30), shoot dry weight (21.33 g), total dry weight (26.28 g) and shoot root dry weight ratio (4.32). Thus, survival percentage and growth of mango rootstocks can be substantially improved by soaking mango stones in aqueous solutions of 100 ppm GA3 or Thiourea at 1 % for 24 hours before sowing.

scholarly journals Propagation of three native Brazilian Piper species by cuttings and indole butyric acid

2018 ◽  
Vol 12 (2) ◽  
pp. 491-499
Author(s):  
Aurea Portes Ferriani ◽  
Cícero Deschamps ◽  
Wanderlei Do Amaral ◽  
Luiz Everson da Silva
Keyword(s):  
New Species ◽  
Butyric Acid ◽  
Vegetative Propagation ◽  
Biological Activities ◽  
Average Diameter ◽  
Adventitious Rooting ◽  
Stem Cuttings ◽  
Indole Butyric Acid ◽  
Positive Effect ◽  
Biological Reserve

Native Piper species present significant repellent, antimicrobial, inseticidal, anti-tumor and anti-protozoal biological activities. Studies on new species can discover unpublished potentialities and vegetative propagation for the development of cultivation protocols and reduce the natural extraction. The objective of this study was to evaluate the rooting of P. arboreum, P. cernuum and P. diospyrifolium stem cuttings with different treatments containing doses of indole butyric acid (0, 500; 1,000; 1,500; 2,000 and 3,000 mg L-1). Branches were collected in the “Bom Jesus Biological Reserve”, Parana state, Brazil. The cuttings, with a length of 12 cm and average diameter of 6 mm, were placed in 53 cm3 plastic tubes with the commercial substrate Tropstrato HP® and intermittent misting. After 90 days, the survival, mortality, cuttings with new shoots, number and length of the three main roots were evaluated. The percentages of rooting reached an average of 67.5% for P. arboreum, 51.6% for P. cernuum and 50.4% for P. diospyrifolium. A positive effect in the treatments containing the plant regulator was observed for rooting development, percentage of cuttings with shoots and number of roots per propagule, but there were variations in the responses of each species. Leaf retention was an important factor for the adventitious rooting formation in all evaluated species.

Rural Tourism in Transitional Russia's Economics

2015 ◽  
pp. 219-238
Author(s):  
Anna Ivolga
Keyword(s):  
Sustainable Development ◽  
Rural Development ◽  
Environmental Conditions ◽  
System Approach ◽  
Social Issues ◽  
Rural Tourism ◽  
Sustainable Rural Development ◽  
Market Capacity ◽  
Alternative Sources ◽  
Alternative Activities

This chapter assesses the potential of rural tourism in Russia, addresses such threats to sustainable rural development as unemployment and depopulation, and substantiates the practicality of diversification of traditional rural sources of income by means of tourism and other alternative activities. The system approach is utilized, which envisages systematization and stocktaking of various aspects of sustainable development: available resources, economic conditions of agricultural production, market capacity and demand for agricultural commodities and food, employment and social issues, environmental conditions, and alternative sources of income for rural inhabitants.

Bone modifying agents for patients with bone metastases from breast cancer managed in routine practice setting: Treatment patterns and outcome

2019 ◽  
Vol 26 (4) ◽  
pp. 906-911
Author(s):  
Jamal Zekri ◽  
Kamel Farag ◽  
Osama Yousof ◽  
Yazeed Zabani ◽  
Wael Mohamed ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Zoledronic Acid ◽  
Bone Metastases ◽  
Treatment Patterns ◽  
Routine Practice ◽  
Related Event ◽  
Modifying Agent ◽  
Skeletal Related Events ◽  
Skeletal Related Event

Introduction Bone metastases are common in patients with breast cancer and can lead to pain and skeletal-related events. Bone modifying agents are licensed to be used for these patients. We report the treatment patterns and outcome of zoledronic acid and denosumab in routine practice. Methodology Women with bone metastases from breast cancer who have started denosumab or zoledronic acid between 2011 and 2016 were eligible. Those with history of bone modifying agent use prior to diagnosis of bone metastases or with switching treatment between zoledronic acid and denosumab were excluded. Details of patients, tumors, bone modifying agent treatment, selected bone modifying agent toxicity, time to skeletal-related event development, and overall survival were collected retrospectively. Results In total, 163 women were eligible and included in this analysis. Number of skeletal-related events prior to starting bone modifying agents was 0, 1, 2, and 3 in 91 (55.8%), 53 (32.5%), 13 (8%), and 6 (3.7%), respectively. Zoledronic acid was started for 107 (65.6%) and denosumab for 56 (34.4%) patients. The proportion of patients receiving denosumab increased from 23.1 to 54.3% in years 2011 and 2016, respectively. Dose delay, reduction, and discontinuation due to toxicity were reported more frequently in patients receiving zoledronic acid. Denosumab delayed time to first on-treatment skeletal-related event compared with zoledronic acid (hazard ratio, 0.64; 95% CI, 0.41–0.98; log rank P = 0.044). There was no significant difference in median survival (zoledronic acid: 62 and denosumab: 58 months; log rank P = 0.956). Conclusion Denosumab is superior to zoledronic acid in reducing risk of skeletal-related events and in tolerance profile. However, overall survival is similar with both treatments. Our findings mirror those reported in scrutinized environment of landmark clinical trials.

Micropropagation of Scaevola —Australian native of ornamental horticulture

1998 ◽  
Vol 38 (4) ◽  
pp. 399 ◽  
Author(s):  
P. L. Bhalla ◽  
K. Sweeney
Keyword(s):  
Tissue Culture ◽  
Butyric Acid ◽  
High Survival ◽  
Root Initiation ◽  
Free Medium ◽  
Skoog Medium ◽  
Survival Percentage ◽  
Murashige And Skoog Medium ◽  
Ornamental Horticulture

Summary. A number of commercially available cultivars of Scaevola aemula, S. albida, S. phlebopetala, S. striata and material collected from the wild of S. glandulifera, S. hookeri and S. ramonissima were successfully propagated by tissue culture. Shoot segments 3–4 cm in length were multiplied in Murashige and Skoog medium without hormones. Addition of 25–150 µmol kinetin/L in the micropropagation medium of S. aemula and S. phlebopetala resulted in the formation of deformed shoots. Tissue cultured shoots rooted in hormone-free medium in 4–6 weeks. Indole-3-butyric acid (10–20 µmol/L) had an effect on rate of root initiation of S. phlebopetala but not on percentage of rooting. A high survival percentage (>95%) was obtained when plants were transferred to soil under glasshouse conditions indicating that micropropagation of Scaevola is feasible.

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