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首页> 外文期刊>Revista Brasileira de Fruticultura >Efeito de diferentes substratos e épocas de coleta no enraizamento de estacas herbáceas de goiabeira, cvs. paluma e século XXI
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Efeito de diferentes substratos e épocas de coleta no enraizamento de estacas herbáceas de goiabeira, cvs. paluma e século XXI

机译：不同基质和收集时间对番石榴草插条生根的影响。帕卢马和21世纪

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摘要

The objective of this research was to evaluate the influence of different substrates and collection season on the herbaceous cutting rooting of 'Paluma' and 'Século XXI' guava plants (Psidium guajava L.). The herbaceous cuttings were obtained on spring and summer seasons, consisted of 10cm of length, two nodes and a pair of leaves in the superior node, and treated with five doses of IBA (0, 500, 1,500 and 2,000 mg/L) for each season studied, and disposed into plastic boxes containing hull rice coal and vermiculita as substrates. After 70 days, the rooting percentage, roots length, number of roots, fresh and dry matter of roots, survival percentage, foliar retention and percentage of cuttings with callus were evaluated. The results showed that the better rooting percentage occurred in cuttings collected in summer; the 1,500 and 2,000 mg/L of IBA were the most appropriate to provide the best rooting characteristics of 'Paluma' and 'Século XXI' herbaceous cuttings, respectively. Both substrates are indicated for the guava cultivars herbaceous cuttings rooting studied.
机译：这项研究的目的是评估不同基质和采集季节对'Paluma'和'SéculoXXI'番石榴植物（Psidium guajava L.）的草本cutting插生根的影响。草本插条在春季和夏季获得，由10cm长，两个节和上节的一对叶子组成，并分别以五种IBA剂量（0、500、1,500和2,000 mg / L）处理研究季节，并放置在装有外壳稻煤和ver石作为底物的塑料盒中。 70天后，评估生根率，根长，根数，根的新鲜和干物质，存活率，叶面保持率和带有愈伤组织的插条的百分比。结果表明，夏季采集的插条生根率较高; IBA 1,500和2,000 mg / L最适合分别提供'Paluma'和'SéculoXXI'草本插条的最佳生根特性。两种基质均适用于所研究的番石榴品种草本插条生根。

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