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The Effect of Seed Size on Germination and Seedling Growth in Sweet Chestnut (Castanea sativa Mill.)

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Institute of Forest Genetics, Dendrology and Botany, Faculty of Forestry and Wood Technology, University of Zagreb, HR-10000 Zagreb, Croatia
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Institute of Ecology and Silviculture, Faculty of Forestry and Wood Technology, University of Zagreb, HR-10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Academic Editor: Daniel J. Johnson
Forests 2021, 12(7), 858; https://doi.org/10.3390/f12070858
Received: 27 May 2021 / Revised: 18 June 2021 / Accepted: 27 June 2021 / Published: 29 June 2021
(This article belongs to the Section Forest Ecology and Management)
The quantity and quality of seedlings in the nursery has an impact on the success of re-establishment and later growth. High germination rates enable a sufficient number of seedlings, and their quality is assessed using a number of parameters, including seedling height and root collar diameter. These parameters are influenced in some species by seed size, but the correlation between them is species-specific. The model species in this research was sweet chestnut (Castaneasativa Mill.), and seeds from 12 populations from two distinct biogeographical regions of Croatia were collected. We examined the influence of seed size on four parameters: germination rate, seedling height, root collar diameter and sturdiness quotient. Seed size has been shown to have a positive influence on both seedling height and root collar diameter, whereas no such correlation was noted for germination rate and sturdiness quotient. Significant differences in nut size and seedling growth parameters were found between the Mediterranean and continental populations, with higher values observed in the coastal Mediterranean populations. We concluded that seed origin and seed size have a significant impact on seedling growth and are important factors to consider when choosing seed material. Further nursery operations should consider seed origin and local environmental conditions when choosing seedlings for reforestation efforts and general forest operations. View Full-Text
Keywords: seed size; germination; seedling height; root collar diameter; sweet chestnut seed size; germination; seedling height; root collar diameter; sweet chestnut
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MDPI and ACS Style

Tumpa, K.; Vidaković, A.; Drvodelić, D.; Šango, M.; Idžojtić, M.; Perković, I.; Poljak, I. The Effect of Seed Size on Germination and Seedling Growth in Sweet Chestnut (Castanea sativa Mill.). Forests 2021, 12, 858. https://doi.org/10.3390/f12070858

AMA Style

Tumpa K, Vidaković A, Drvodelić D, Šango M, Idžojtić M, Perković I, Poljak I. The Effect of Seed Size on Germination and Seedling Growth in Sweet Chestnut (Castanea sativa Mill.). Forests. 2021; 12(7):858. https://doi.org/10.3390/f12070858

Chicago/Turabian Style

Tumpa, Katarina, Antonio Vidaković, Damir Drvodelić, Mario Šango, Marilena Idžojtić, Ivan Perković, and Igor Poljak. 2021. "The Effect of Seed Size on Germination and Seedling Growth in Sweet Chestnut (Castanea sativa Mill.)" Forests 12, no. 7: 858. https://doi.org/10.3390/f12070858

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