scholarly journals Factors Affecting Propagation of Clematis by Stem Cuttings

1997 ◽  
Vol 7 (4) ◽  
pp. 408-410 ◽  
Author(s):  
John E. Erwin ◽  
D. Schwarze ◽  
R. Donahue

Effect of media type, cultivar, and indole-3 butyric acid (IBA) application on Clematis spp. stem cutting rooting was studied. Cutting survival across all treatments was highest on `Comtesse de Bouchard' and `Gypsy Queen' cuttings and lowest on `Jackmani' cuttings. Cutting survival was greatest in perlite and lowest in peat-perlite-vermiculite. IBA application increased `Jackmani' cutting survival only. Time of root emergence was longest on `Jackmani' and least on `Gypsy Queen' cuttings across treatments. Root emergence occurred first in sand and perlite and last in peat-perlite across treatments. Root dry mass on cuttings from `Jackmani' and Clematis viticella purpurea plena elegens plants were unaffected by medium type. In contrast, root dry mass on `Comtesse de Bouchard' cuttings was highest in perlite and root dry mass on `Gypsy Queen' cuttings was highest in sand, perlite, and peat-perlite-vermiculite. The best media for propagating clematis were sand and perlite. Benefits to rooting cuttings in sand or perlite were similar, except rooting cuttings in perlite resulted in higher cutting root dry mass.

1997 ◽  
Vol 7 (1) ◽  
pp. 68-70 ◽  
Author(s):  
Yiqun Lin ◽  
Michael R. Wagner ◽  
Joseph R. Cobbinah

The effect of bottom heat, wounding, and duration of stem basal IBA dip on macropropagation of Milicia excelsa was investigated. Bottom heat enhanced root dry mass and accelerated root initiation. Percentage rooting and root dry mass were not affected by wounding and duration of stem basal treatment. However, wounding interacted with bottom heat to affect dry mass (P < 0.05). Root biomass was 60% higher from wounded cuttings than from nonwounded cuttings under the nonheated condition. Chemical names used: 1H-indole-3-butyric acid (IBA).


2018 ◽  
Vol 28 (3) ◽  
pp. 378-381
Author(s):  
Bryan J. Peterson ◽  
Stephanie E. Burnett ◽  
Olivia Sanchez

Although overhead mist revolutionized the propagation industry, it does suffer from potential drawbacks that include the application of large volumes of water, potentially unsanitary conditions, irregular misting coverage, and leaching of foliar nutrients. We explored the feasibility of submist as an alternative as it might avoid these problems by applying water exclusively from below the cutting, which is inserted basally into an enclosed rooting chamber. We propagated cuttings of korean lilac (Syringa pubescens ssp. patula) and inkberry (Ilex glabra) using both overhead mist and submist to compare effectiveness of the systems. Cuttings of korean lilac were wounded and dipped basally into 8000 mg·L−1 of the potassium salt of indole-3-butyric acid (K-IBA), and those in the overhead mist systems were inserted into coarse perlite. Cuttings of inkberry were wounded and treated with 5000 mg·L−1 K-IBA, and those in the overhead mist systems were inserted into 50:50 peat:perlite (by vol). Cuttings of korean lilac in the submist systems produced more than twice as many roots as cuttings in the overhead mist systems, with roots more than 2.6 times the length. Similarly, cuttings of inkberry in the submist systems produced more than three times the root counts and root lengths as cuttings in the overhead mist systems. For korean lilac, root dry weights averaged 58 mg for cuttings in the submist system, compared with only 18 mg among cuttings receiving overhead mist. Likewise, root dry weights averaged 70 and 7 mg for cuttings of inkberry propagated by submist and overhead mist, respectively. Rooted cuttings of korean lilac transplanted well into a soilless substrate, where they more than tripled their root biomass to 218 mg (vs. 59 mg for cuttings transplanted from overhead mist). We did not evaluate transplant performance of inkberry. Our results show that submist systems might merit consideration for the propagation of woody plants by leafy stem cuttings.


2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Piergiorgio Gherbin ◽  
Simone Milan ◽  
Giuseppe Mercurio ◽  
Antonio Scopa

The increasing interest in<em> Arundo donax,</em> a perennial lignocellulosic species only reproducing by propagation, requires the setup of cheap, simple and reliable techniques. Considering these targets, stem cutting offers considerable advantages. The present investigation aimed to compare: i) plants obtained by different propagation methods (by rhizome and micropropagation mother plants); ii) plants obtained by stem cuttings from basal, central and apical parts of the stem; iii) different planting periods (spring, summer, autumn). The obtained results showed that the number of new shoots from stem buds was: i) higher in the spring and lower in the summer planting period; ii) higher from cuttings obtained by micropropagated than rhizome mother plants, both in spring and summer plantings; iii) decreasing passing from the basal to the apical stem portion; iv) partly unexpressed in the autumn planting period; v) lower from one-year stem cuttings as compared to two-year stem cuttings.


2018 ◽  
Vol 12 (2) ◽  
pp. 508-513
Author(s):  
Erik Nunes Gomes ◽  
Marília Pereira Machado ◽  
José Miola ◽  
Cícero Deschamps

Hop (Humulus lupulus L.) is a plant with economic importance due to its use in the brewing industry. The cones produced by the species contain the main substances responsible for the beer’s bitterness and aroma. Hop plants cultivation in Brazil is still incipient and information on efficient methods for its propagation in this context are scarce. The objective of the present study was to evaluate the effect of different leaf areas (two whole leaves, two leaves in half, one whole leaf, one leaf in half and without leaves) in herbaceous stem cuttings planted in environments with and without intermittent misting. The experiment was conducted in a greenhouse in Curitiba-PR, Brazil (25º25’40 “S and 49º16’23” W). After 30 days of planting, the survival, rooting, sprouting and leaf retention percentages, roots number, average roots length and roots and sprouts dry mass were evaluated. Cuttings with one or two whole leaves and two leaves in half in the misting environment showed the highest rooting percentages (between 90.0 and 97.5%). In the without misting environment, the highest values were observed in cuttings with one or two leaves in half and one whole leaf (between 62.5 and 72.5%). Leafless cuttings had low survival percentages (2.5% in both environments). Under intermittent misting conditions it is recommended to prepare stem cuttings with one or two whole leaves and, in the absence of control over the environment humidity, cuttings with one whole leaf are recommended.


2018 ◽  
Vol 12 (2) ◽  
pp. 491-499
Author(s):  
Aurea Portes Ferriani ◽  
Cícero Deschamps ◽  
Wanderlei Do Amaral ◽  
Luiz Everson da Silva

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.


2019 ◽  
Vol 100 ◽  
pp. 00019 ◽  
Author(s):  
Renata Gmurkowska

During water treatment a large amount of sludge is created – in the form of sewage and sediments. The largest amounts of sludge are produced during coagulation, ozonation and backwashing rapid filters. The quality and quantity of treated water, the type and dose of used coagulants are factors affecting the quantity, composition and properties of the sludge. Sludge produced during processing of drinking water is important problem and their quantity has been increasing. The study focuses on characteristics of water treatment sludge from four water treatment plants in Cracow. It includes theoretical and experimental part. The first part is based on analysis of literature and information obtained from MPWiK [3]. The second experimental part, concerns the analysis of dry matter, organic dry matter, capillary suction time and visual parameters: the color and consistency of the sludge. Result shows that every sludge contains organic matter. The highest concentrations of organic compounds and the largest diversity has been observed in the sludge collected in the Water Treatment Plant Raba, reaching even up to 70% of organic compounds in the dry mass of sludge.


2016 ◽  
Vol 11 (23) ◽  
pp. 2050-2057 ◽  
Author(s):  
Ten oacute rio de Vasconcelos Rodrigo ◽  
Valiengo Valeri S eacute rgio ◽  
Baldo Geraldo Martins Antonio ◽  
Biagiotti Gabriel ◽  
Aparecida Pereira Perez Bruna

2015 ◽  
Vol 3 (1) ◽  
pp. 2-5 ◽  
Author(s):  
Deepak Upreti ◽  
Naresh Prasad Sapkota ◽  
Bibek Aryal ◽  
Sangita Shakya

In this study, the effect of applying nutrient limitation on the production of Poly-hydro-oxy-butyric acid (PHB) from soil bacteria was examined. PHB is a biodegradable polymer which provides a reserve of carbon and energy. PHB was extracted by chloroform dispersion method. The amount of synthesized PHB was determined as crotonic acid by spectrophotometry. We found that Nitrogen limiting condition stimulated PHB accumulation. The highest level of PHB accumulation was observed in DNB-6 strain which accumulated 31 % of the dry mass at 20 % glucose concentration. The probabilistic identification of bacteria by PIBwin software version 1.9.2 showed that the strain DNB-6 was close in nature to Bacillus cereus.Nepal Journal of Biotechnology. Dec. 2015 Vol. 3, No. 1: 2-5


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