Journal
PESQUISA AGROPECUARIA BRASILEIRA
Volume 50, Issue 12, Pages 1232-1235Publisher
EMPRESA BRASIL PESQ AGROPEC
DOI: 10.1590/S0100-204X2015001200014
Keywords
Carya illinoinensis; dormancy break; germination; rootstock; seedling quality
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Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Pro-Reitoria de Pesquisa of Universidade Federal do Pampa (Propesq/Unipampa)
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The objective of this work was to evaluate the effect of seed stratification on germination rate, germination speed, and initial development of seedlings of six pecan (Carya illinoinensis) cultivars under subtropical climatic conditions in southern Brazil. For stratification, the seeds were placed in boxes with moist sand, in a cold chamber at 4 degrees C, for 90 days. In the fourteenth week after sowing, the emergence speed index, total emergence, plant height, stem diameter, and number of leaves were evaluated. Seed stratification significantly improves the germination potential and morphological traits of the evaluated cultivars.
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