Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar
The objective of this work was to evaluate the effect of eucalyptus biochar on the transpiration rate of upland rice 'BRSMG Curinga' as an alternative means to decrease the effect of water stress on plant growth and development. Two-pot experiments were carried out using a completely rando...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2012-05-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500012&lng=en&tlng=en |
| _version_ | 1818097198523482112 |
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| author | Rogério Gomes Pereira Alexandre Bryan Heinemann Beata Emoke Madari Marcia Thais de Melo Carvalho Huberto José Kliemann Aurélio Pereira dos Santos |
| author_facet | Rogério Gomes Pereira Alexandre Bryan Heinemann Beata Emoke Madari Marcia Thais de Melo Carvalho Huberto José Kliemann Aurélio Pereira dos Santos |
| author_sort | Rogério Gomes Pereira |
| collection | DOAJ |
| description | The objective of this work was to evaluate the effect of eucalyptus biochar on the transpiration rate of upland rice 'BRSMG Curinga' as an alternative means to decrease the effect of water stress on plant growth and development. Two-pot experiments were carried out using a completely randomized block design, in a split-plot arrangement, with six replicates. Main plots were water stress (WS) and no-water stress (NWS), and the subplots were biochar doses at 0, 6, 12 and 24% in growing medium (sand). Total transpirable soil water (TTSW), the p factor - defined as the average fraction of TTSW which can be depleted from the root zone before water stress limits growth -, and the normalized transpiration rate (NTR) were determined. Biochar addition increased TTSW and the p factor, and reduced NTR. Consequently, biochar addition was able to change the moisture threshold (p factor) of the growing medium, up to 12% maximum concentration, delaying the point where transpiration declines and affects yield. |
| first_indexed | 2024-12-10T23:16:42Z |
| format | Article |
| id | doaj.art-7ea55ff06c1b454dac5b3cfefd9e0f11 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-12-10T23:16:42Z |
| publishDate | 2012-05-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-7ea55ff06c1b454dac5b3cfefd9e0f112022-12-22T01:29:50ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212012-05-0147571672110.1590/S0100-204X2012000500012S0100-204X2012000500012Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biocharRogério Gomes Pereira0Alexandre Bryan Heinemann1Beata Emoke Madari2Marcia Thais de Melo Carvalho3Huberto José Kliemann4Aurélio Pereira dos Santos5Universidade Federal de GoiásEmbrapaEmbrapaEmbrapaEmbrapaEmbrapaThe objective of this work was to evaluate the effect of eucalyptus biochar on the transpiration rate of upland rice 'BRSMG Curinga' as an alternative means to decrease the effect of water stress on plant growth and development. Two-pot experiments were carried out using a completely randomized block design, in a split-plot arrangement, with six replicates. Main plots were water stress (WS) and no-water stress (NWS), and the subplots were biochar doses at 0, 6, 12 and 24% in growing medium (sand). Total transpirable soil water (TTSW), the p factor - defined as the average fraction of TTSW which can be depleted from the root zone before water stress limits growth -, and the normalized transpiration rate (NTR) were determined. Biochar addition increased TTSW and the p factor, and reduced NTR. Consequently, biochar addition was able to change the moisture threshold (p factor) of the growing medium, up to 12% maximum concentration, delaying the point where transpiration declines and affects yield.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500012&lng=en&tlng=enEucalyptusOryza sativaestresse abióticodeficiência hídrica |
| spellingShingle | Rogério Gomes Pereira Alexandre Bryan Heinemann Beata Emoke Madari Marcia Thais de Melo Carvalho Huberto José Kliemann Aurélio Pereira dos Santos Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar Pesquisa Agropecuária Brasileira Eucalyptus Oryza sativa estresse abiótico deficiência hídrica |
| title | Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| title_full | Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| title_fullStr | Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| title_full_unstemmed | Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| title_short | Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| title_sort | transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar |
| topic | Eucalyptus Oryza sativa estresse abiótico deficiência hídrica |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500012&lng=en&tlng=en |
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