Resumo
Four experiments on root formation on cuttings of mulberry trees of the variety Catania 1 were carried out. In each case the hormones Dieradix "M D", Dieradix "D", indol 3-yl-acetic acid, and I-naphthyl acetic acid were used, besides the control, without hormone. In all cases "normal" and "upside-down" planting were tried. The percentage x of cuttings with roots, after 54 days, were computed and transformed by the formula y = arc sin √P/100 for use in statistical analysis. The combined analysis of variance of the 4 trials led to the following results: "Upside-down" planting showed significantly higher percentage of rooting; Indol 3-yl-acetic acid was significantly better than control or other hormones. The percentages of rooted cuttings were as follows: Normal planting Upside-dow planting Indol 3-yl acetic acid 43.5% 90.9% I-naphthyl acetic acid 1.9% 69.3% Control 4.7% 22.2% Dieradix «M D» 2.4% 63.8% Dieradix «D» 1.3% 36.0%
Escola Superior de Agricultura «Luiz de Queiroz»
SUMMARY
Four experiments on root formation on cuttings of mulberry trees of the variety Catania 1 were carried out. In each case the hormones Dieradix "M D", Dieradix "D", indol 3-yl-acetic acid, and I-naphthyl acetic acid were used, besides the control, without hormone. In all cases "normal" and "upside-down" planting were tried. The percentage x of cuttings with roots, after 54 days, were computed and transformed by the formula y = arc sin √P/100 for use in statistical analysis. The combined analysis of variance of the 4 trials led to the following results:
"Upside-down" planting showed significantly higher percentage of rooting;
Indol 3-yl-acetic acid was significantly better than control or other hormones.
The percentages of rooted cuttings were as follows:
Normal planting Upside-dow planting
Indol 3-yl acetic acid 43.5% 90.9%
I-naphthyl acetic acid 1.9% 69.3%
Control 4.7% 22.2%
Dieradix «M D» 2.4% 63.8%
Dieradix «D» 1.3% 36.0%
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LITERATURA CITADA
- 1 - GERHARD, NAUNDORF - Las fitohormonas en Agricultura - Salvat Editores S. A, 1951.
- 2 - INFORZATO, R. - O emprego de hormônios no enraizamento de estacas de amoreira. Bragantia 10: 385/387 - 1950.
- 4 - PIMENTEL GOMES, F. - Curso de Estatística Experimental (2.a edição), 384 pg. + 15 tabelas. 1963.
Estacas de amoreira tratadas com hormônios vegetais em dois sistemas de plantio e referentes coberturas do estufim
Datas de Publicação
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Publicação nesta coleção
06 Set 2012 -
Data do Fascículo
1963