Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100175 |
Resumo: | Abstract Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles’ stage is important, as it indicate the appropriate environment to achieve vigorous saplings. We aimed to verify growth and morphophysiological changes under shade gradient in feijoa (Acca sellowiana (O. Berg) Burret) to achieve good quality saplings adequate to improve cultivation in orchards. The saplings were grown for twenty-one-month under four shading treatments (0%, 30%, 50%, and 80%). Growth, photosynthetic pigments, gas exchanges, chlorophyll fluorescence, and leaf anatomy parameters were evaluated. Saplings under full sun and 30% shade had higher height and diameter growth and dry mass accumulation due to higher photosynthesis rate. As main acclimatization mechanisms in feijoa saplings under 80% shade were developed larger leaf area, reduced leaf blade thickness, and enhanced quantum yield of photosystem II. Even so, the net CO2 assimilation and the electron transport rate was lower and, consequently, there was a restriction on the growth and dry mass in saplings under deep shade. Therefore, to obtain higher quality feijoa saplings, we recommend that it be carried out in full sun or up to 30% shade, to maximize the sapling vigor in nurseries and, later, this light environment can also be used in orchards for favor growth and fruit production. |
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Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradientacclimatizationleaf anatomyphotosynthesisnative fruitsBrazilian guavaAbstract Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles’ stage is important, as it indicate the appropriate environment to achieve vigorous saplings. We aimed to verify growth and morphophysiological changes under shade gradient in feijoa (Acca sellowiana (O. Berg) Burret) to achieve good quality saplings adequate to improve cultivation in orchards. The saplings were grown for twenty-one-month under four shading treatments (0%, 30%, 50%, and 80%). Growth, photosynthetic pigments, gas exchanges, chlorophyll fluorescence, and leaf anatomy parameters were evaluated. Saplings under full sun and 30% shade had higher height and diameter growth and dry mass accumulation due to higher photosynthesis rate. As main acclimatization mechanisms in feijoa saplings under 80% shade were developed larger leaf area, reduced leaf blade thickness, and enhanced quantum yield of photosystem II. Even so, the net CO2 assimilation and the electron transport rate was lower and, consequently, there was a restriction on the growth and dry mass in saplings under deep shade. Therefore, to obtain higher quality feijoa saplings, we recommend that it be carried out in full sun or up to 30% shade, to maximize the sapling vigor in nurseries and, later, this light environment can also be used in orchards for favor growth and fruit production.Instituto Internacional de Ecologia2024-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100175Brazilian Journal of Biology v.84 2024reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.252364info:eu-repo/semantics/openAccessSilva,L. R.Moura,A. P. C.Gil,B. V.Rohr,A.Almeida,S. M. Z.Donazzolo,J.Perboni,A. T.Oliveira,F. L. R.Sant’Anna-Santos,B. F.Galon,L.Danner,M. A.eng2022-01-05T00:00:00Zoai:scielo:S1519-69842024000100175Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2022-01-05T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
title |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
spellingShingle |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient Silva,L. R. acclimatization leaf anatomy photosynthesis native fruits Brazilian guava |
title_short |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
title_full |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
title_fullStr |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
title_full_unstemmed |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
title_sort |
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient |
author |
Silva,L. R. |
author_facet |
Silva,L. R. Moura,A. P. C. Gil,B. V. Rohr,A. Almeida,S. M. Z. Donazzolo,J. Perboni,A. T. Oliveira,F. L. R. Sant’Anna-Santos,B. F. Galon,L. Danner,M. A. |
author_role |
author |
author2 |
Moura,A. P. C. Gil,B. V. Rohr,A. Almeida,S. M. Z. Donazzolo,J. Perboni,A. T. Oliveira,F. L. R. Sant’Anna-Santos,B. F. Galon,L. Danner,M. A. |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva,L. R. Moura,A. P. C. Gil,B. V. Rohr,A. Almeida,S. M. Z. Donazzolo,J. Perboni,A. T. Oliveira,F. L. R. Sant’Anna-Santos,B. F. Galon,L. Danner,M. A. |
dc.subject.por.fl_str_mv |
acclimatization leaf anatomy photosynthesis native fruits Brazilian guava |
topic |
acclimatization leaf anatomy photosynthesis native fruits Brazilian guava |
description |
Abstract Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles’ stage is important, as it indicate the appropriate environment to achieve vigorous saplings. We aimed to verify growth and morphophysiological changes under shade gradient in feijoa (Acca sellowiana (O. Berg) Burret) to achieve good quality saplings adequate to improve cultivation in orchards. The saplings were grown for twenty-one-month under four shading treatments (0%, 30%, 50%, and 80%). Growth, photosynthetic pigments, gas exchanges, chlorophyll fluorescence, and leaf anatomy parameters were evaluated. Saplings under full sun and 30% shade had higher height and diameter growth and dry mass accumulation due to higher photosynthesis rate. As main acclimatization mechanisms in feijoa saplings under 80% shade were developed larger leaf area, reduced leaf blade thickness, and enhanced quantum yield of photosystem II. Even so, the net CO2 assimilation and the electron transport rate was lower and, consequently, there was a restriction on the growth and dry mass in saplings under deep shade. Therefore, to obtain higher quality feijoa saplings, we recommend that it be carried out in full sun or up to 30% shade, to maximize the sapling vigor in nurseries and, later, this light environment can also be used in orchards for favor growth and fruit production. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100175 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100175 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1519-6984.252364 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.84 2024 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129890797223936 |