scholarly journals Number of leaflets on rooting of lychee herbaceous cuttings

2016 ◽  
Vol 46 (6) ◽  
pp. 1003-1006 ◽  
Author(s):  
Ediane Conceição Alves ◽  
João Emmanuel Ribeiro Guimarães ◽  
Camila Kauffmann Becaro Franco ◽  
Antonio Baldo Geraldo Martins
Keyword(s):  
Regression Analysis ◽  
Experimental Design ◽  
Polynomial Regression ◽  
Experimental Plot ◽  
Indolebutyric Acid ◽  
Polynomial Regression Analysis ◽  
Rooting Of Cuttings ◽  
Exotic Fruits

ABSTRACT: Lychee is one of the most popular exotic fruits in Brazil, and has both in natura and industrial potential. The objective of the present study was to evaluate the influence of the number of leaflets on lychee herbaceous cuttings treated with the indolebutyric acid (1000mg L-1). The experimental design was completely randomized, with 4 replications and 10 cuttings per experimental plot. Treatments consisted of cuttings with zero (0), one (1), two (2), three (3), and four (4) leaflets. After 180 days, the rooting and survival percentages and the number and length of roots were evaluated. The data were subjected to polynomial regression analysis. The increase in the number of leaflets was advantageus for all studied variables, with an increase in the survival, rooting of cuttings, and number and length of roots. The herbaceous cuttings of lychee tree are viable, provided that at least four leaflets remain in the herbaceous cutting.

scholarly journals Vegetative propagation of bauhinia x blakeana, an ornamental sterile tree

2013 ◽  
Vol 37 (2) ◽  
pp. 219-229
Author(s):  
Renata Bachin Mazzini ◽  
Kathia Fernandes Lopes Pivetta ◽  
Gustavo de Nobrega Romani ◽  
Breno Furlan Bueno
Keyword(s):  
Regression Analysis ◽  
Experimental Design ◽  
Vegetative Propagation ◽  
Polynomial Regression ◽  
Natural Hybrid ◽  
Tukey Test ◽  
Polynomial Regression Analysis ◽  
Four Seasons ◽  
Grafting Experiment ◽  
Grafting Methods

Bauhinia x blakeana (B. purpurea x B. variegata) is a natural hybrid that has been cultivated in gardens, streets and parks. Due to its sterility, it must be vegetatively propagated. The objective of this work was to evaluate the viability of cuttings and grafting on its propagation. Semi-woody cuttings were collected during four seasons and treated with 0; 1,000; 2,000; and 3,000 mg L-1 of IBA. The experimental design was entirely randomized and the treatments were arranged in a 4x4 factorial scheme (four collecting times x four IBA concentrations) and five replications with 10 cuttings each, per collecting time and per IBA concentration. Characteristics of roots and shoots were evaluated after 90 days. The data means were compared by the Tukey test and submitted to the polynomial regression analysis. For the grafting experiment, B. variegata and B. variegata var. candida plants of six and 12 months were used as rootstocks and the splice graft and T-budding methods were tested. The experimental design was entirely randomized and the treatments were arranged in a 2x2x2 factorial scheme (two rootstock species x two grafting methods x two rootstock ages) and four replications with five plants each, per rootstock species, per grafting method and per rootstock age. Characteristics of shoots were evaluated after 90 days and the data means were compared by the Tukey test. B. x blakeana can be propagated by semi-woody cuttings collected in spring, without IBA application, or in summer, with the application of 3,000 mg L-1 of IBA. The tested grafting methods were not effective.

scholarly journals Assessment of Aortic Line of Elasticity Using Polynomial Regression Analysis

Circulation ◽  
2000 ◽  
Vol 101 (15) ◽  
pp. 1819-1825 ◽  
Author(s):  
Christodoulos Stefanadis ◽  
John Dernellis ◽  
Eleftherios Tsiamis ◽  
Leonidas Diamantopoulos ◽  
Andreas Michaelides ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Polynomial Regression ◽  
Polynomial Regression Analysis

Rooting of Herbaceous and Semihardwood Cuttings of Guava cv. Século XXI, under Varying Concentrations of Indolebutyric Acid

2019 ◽  
pp. 1-9
Author(s):  
Jussara Cristina Firmino Da Costa ◽  
Rejane Maria Nunes Mendonça ◽  
Gerciane Cabral Da Silva ◽  
Silvanda de Melo Silva ◽  
Walter Esfrain Pereira ◽  
...  
Keyword(s):  
Experimental Design ◽  
Significant Interaction ◽  
Dry Weight ◽  
Psidium Guajava ◽  
Commercial Production ◽  
Control Treatment ◽  
Distilled Water ◽  
Indolebutyric Acid ◽  
Rooting Of Cuttings

In the commercial production of guava seedlings (Psidium guajava L.) the quality of the cuttings, homogeneity, high percentage of rooting are the factors important to be analyzed. Therefore, as the Século XXI cultivar is recent, it is necessary to do more studies regarding the behavior of this guava to the factors that aid in the rhizogenic process. The objective of this work was to verify the concentrations of indolebutyric acid (IBA) that provide the best rooting of cuttings herbaceous and semihardwood, as well as to verify the best kind of cuttings used for vegetative propagation the guava cuttings cultivar ‘Século XXI’. The experimental design was completely randomized in a 5 x 2 + 1 factorial design, beginning with five concentrations of IBA (0, 1000, 1500, 2000 and 2500 mg L-1), two kinds of cuttings (herbaceous and semihardwood) and one control treatment (immersed in distilled water for 12 hours), with four replications and 10 cuttings per plot. In relation of the variables: the percentage of cuttings live without roots, callus, number of roots and dry weight of shoots did not present significant interaction among treatments, not adjusting to any regression model. Therefore, concluding that the herbaceous cutting is the most indicated for the propagation of guava seedlings of ‘Século XXI’; The concentration of 2500 mg L-1 of IBA promotes a higher percentage of rooted semihardwood cuttings without leaf; The hormone solution diluted with alcohol 50% (v/v) resulted in toxicity for herbaceous and semihardwood cuttings cv. Século XXI.

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