GAS EXCHANGE, CHLOROPLAST PIGMENTS AND GROWTH OF PASSION FRUIT CULTIVATED WITH SALINE WATER AND POTASSIUM FERTILIZATION
The objective of this study was to evaluate the gas exchange, chloroplast pigments and growth of ‘BRS Rubi do Cerrado’ passion fruit as a function of irrigation with saline water and potassium fertilization in the seedling formation stage. The experiment was conducted under greenhouse conditions in...
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| Veröffentlicht in: | Caatinga 2020-01, Vol.33 (1), p.184 |
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| creator | Geovani Soares de Lima Cosmo Gustavo Jacome Fernandes Lauriane Almeida dos Anjos Soares Gheyi, Hans Raj Pedro Dantas Fernandes |
| description | The objective of this study was to evaluate the gas exchange, chloroplast pigments and growth of ‘BRS Rubi do Cerrado’ passion fruit as a function of irrigation with saline water and potassium fertilization in the seedling formation stage. The experiment was conducted under greenhouse conditions in the municipality of Pombal-PB, Brazil. A randomized block design was used in 5 x 2 factorial scheme, corresponding to five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and two doses of potassium - KD (50 and 100% of the recommendation), with four replicates and two plants per plot. Water salinity from 0.3 dS m-1 reduced the stomatal opening, transpiration, CO2 assimilation and inhibited the growth of ‘BRS Rubi do Cerrado’ passion fruit plants, at 40 days after sowing. There was no CO2 restriction in the substomatal cavity of passion fruit plants grown under water salinity from 0.3 dS m-1. Potassium dose of 150 mg kg-1 of soil, corresponding to 100%, intensified the effect of salt stress on the assimilation rate and instantaneous carboxylation efficiency in ‘BRS Rubi do Cerrado’ passion fruit. There was interaction between water salinity levels and potassium doses for the chlorophyll a and b contents of ‘BRS Rubi do Cerrado’ passion fruit. |
| doi_str_mv | 10.1590/1983-21252020v33n120rc |
| format | Article |
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The experiment was conducted under greenhouse conditions in the municipality of Pombal-PB, Brazil. A randomized block design was used in 5 x 2 factorial scheme, corresponding to five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and two doses of potassium - KD (50 and 100% of the recommendation), with four replicates and two plants per plot. Water salinity from 0.3 dS m-1 reduced the stomatal opening, transpiration, CO2 assimilation and inhibited the growth of ‘BRS Rubi do Cerrado’ passion fruit plants, at 40 days after sowing. There was no CO2 restriction in the substomatal cavity of passion fruit plants grown under water salinity from 0.3 dS m-1. Potassium dose of 150 mg kg-1 of soil, corresponding to 100%, intensified the effect of salt stress on the assimilation rate and instantaneous carboxylation efficiency in ‘BRS Rubi do Cerrado’ passion fruit. There was interaction between water salinity levels and potassium doses for the chlorophyll a and b contents of ‘BRS Rubi do Cerrado’ passion fruit.</description><identifier>ISSN: 0100-316X</identifier><identifier>EISSN: 1983-2125</identifier><identifier>DOI: 10.1590/1983-21252020v33n120rc</identifier><language>eng ; por</language><publisher>Mossoro: Universidade Federal Rural do Semiárido</publisher><subject>Assimilation ; Carbon dioxide ; Carboxylation ; Chlorophyll ; Chloroplasts ; Electrical conductivity ; Fertilization ; Fruit cultivation ; Fruits ; Gas exchange ; Irrigation water ; Passion fruit ; Pigments ; Potassium ; Saline water ; Salinity ; Salinity effects ; Seedlings ; Stomata ; Transpiration ; Water salinity</subject><ispartof>Caatinga, 2020-01, Vol.33 (1), p.184</ispartof><rights>2020. This work is licensed under http://creativecommons.org/licenses/by/3.0/deed.pt (the “License”). 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The experiment was conducted under greenhouse conditions in the municipality of Pombal-PB, Brazil. A randomized block design was used in 5 x 2 factorial scheme, corresponding to five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and two doses of potassium - KD (50 and 100% of the recommendation), with four replicates and two plants per plot. Water salinity from 0.3 dS m-1 reduced the stomatal opening, transpiration, CO2 assimilation and inhibited the growth of ‘BRS Rubi do Cerrado’ passion fruit plants, at 40 days after sowing. There was no CO2 restriction in the substomatal cavity of passion fruit plants grown under water salinity from 0.3 dS m-1. Potassium dose of 150 mg kg-1 of soil, corresponding to 100%, intensified the effect of salt stress on the assimilation rate and instantaneous carboxylation efficiency in ‘BRS Rubi do Cerrado’ passion fruit. There was interaction between water salinity levels and potassium doses for the chlorophyll a and b contents of ‘BRS Rubi do Cerrado’ passion fruit.</description><subject>Assimilation</subject><subject>Carbon dioxide</subject><subject>Carboxylation</subject><subject>Chlorophyll</subject><subject>Chloroplasts</subject><subject>Electrical conductivity</subject><subject>Fertilization</subject><subject>Fruit cultivation</subject><subject>Fruits</subject><subject>Gas exchange</subject><subject>Irrigation water</subject><subject>Passion fruit</subject><subject>Pigments</subject><subject>Potassium</subject><subject>Saline water</subject><subject>Salinity</subject><subject>Salinity effects</subject><subject>Seedlings</subject><subject>Stomata</subject><subject>Transpiration</subject><subject>Water salinity</subject><issn>0100-316X</issn><issn>1983-2125</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNo9jV1LwzAUhoMoOOb-ggS8tXqS9CuXoUvbQNaUNnXDm2G35GLINlenf9_6gefmwPO-zzkI3RJ4IBGHR8JTFlBCIwoUPhjbEwqnzQWa_AeXaAIEIGAkXl2j2TDsYBzGWZqEE_RZiBbLVVaKqpD3OCu1aUytRWtxrYqFrGyLRTXHRWOWtsQmx7VoW2UqnDedsjjrtFVPwso5Xqqx0AqtKomXI2l-xNrYb6Fb4Fw2Vmn1LOyo36Ar__I6uNnfnqIulzYrA20KlQkdHEnK3gMO1APxPtxwcCT0ceJcOsJ06zeu5xBuwTHmoE9o7_uIp56ymCe-Z8wDUMqm6O737vF0eDu74X29O5xP-_HlmoZJTOIoSSL2BWNyVsU</recordid><startdate>20200101</startdate><enddate>20200101</enddate><creator>Geovani Soares de Lima</creator><creator>Cosmo Gustavo Jacome Fernandes</creator><creator>Lauriane Almeida dos Anjos Soares</creator><creator>Gheyi, Hans Raj</creator><creator>Pedro Dantas Fernandes</creator><general>Universidade Federal Rural do Semiárido</general><scope>3V.</scope><scope>7X2</scope><scope>7XB</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>CLZPN</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M2O</scope><scope>M7P</scope><scope>MBDVC</scope><scope>PADUT</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20200101</creationdate><title>GAS EXCHANGE, CHLOROPLAST PIGMENTS AND GROWTH OF PASSION FRUIT CULTIVATED WITH SALINE WATER AND POTASSIUM FERTILIZATION</title><author>Geovani Soares de Lima ; 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The experiment was conducted under greenhouse conditions in the municipality of Pombal-PB, Brazil. A randomized block design was used in 5 x 2 factorial scheme, corresponding to five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and two doses of potassium - KD (50 and 100% of the recommendation), with four replicates and two plants per plot. Water salinity from 0.3 dS m-1 reduced the stomatal opening, transpiration, CO2 assimilation and inhibited the growth of ‘BRS Rubi do Cerrado’ passion fruit plants, at 40 days after sowing. There was no CO2 restriction in the substomatal cavity of passion fruit plants grown under water salinity from 0.3 dS m-1. Potassium dose of 150 mg kg-1 of soil, corresponding to 100%, intensified the effect of salt stress on the assimilation rate and instantaneous carboxylation efficiency in ‘BRS Rubi do Cerrado’ passion fruit. There was interaction between water salinity levels and potassium doses for the chlorophyll a and b contents of ‘BRS Rubi do Cerrado’ passion fruit.</abstract><cop>Mossoro</cop><pub>Universidade Federal Rural do Semiárido</pub><doi>10.1590/1983-21252020v33n120rc</doi><oa>free_for_read</oa></addata></record> |
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| ispartof | Caatinga, 2020-01, Vol.33 (1), p.184 |
| issn | 0100-316X 1983-2125 |
| language | eng ; por |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Assimilation Carbon dioxide Carboxylation Chlorophyll Chloroplasts Electrical conductivity Fertilization Fruit cultivation Fruits Gas exchange Irrigation water Passion fruit Pigments Potassium Saline water Salinity Salinity effects Seedlings Stomata Transpiration Water salinity |
| title | GAS EXCHANGE, CHLOROPLAST PIGMENTS AND GROWTH OF PASSION FRUIT CULTIVATED WITH SALINE WATER AND POTASSIUM FERTILIZATION |
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