Água salina nos atributos fisiológicos e na produtividade da mandioqueira
2013
Roberto Sílvio Frota de Holanda Filho | Delfran Batista Santos | Carlos Alberto Vieira Azevedo | Eugênio Ferreira Coelho | José Dantas Neto
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<mce:style><! /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabela normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} --> <!--[endif] --><p class="MsoNormal" style="text-align: justify;">Com vistas a verificar o efeito da salinidade da água de irrigação na cultura da mandioca, instalaram-se dois experimentos na área experimental de Irrigação e Drenagem do IF Baiano, Campus de Senhor do Bonfim, BA (10<sup>o </sup>28<sup>’ </sup>S; 40<sup>o </sup>11<sup>’ </sup>W e 550 m). Os dois experimentos utilizaram delineamento inteiramente casualizado. Um constou de seis tratamentos, sendo cinco tratamentos irrigados com água salina com condutividade elétrica de 3 dS m<sup>-1</sup> variando as lâminas aplicadas: 110; 120; 130; 140 e 150% da ETc e um tratamento foi irrigado com água potável utilizando 100% da ETc. Nesse experimento, as variáveis analisadas foram taxa fotossintética, condutância estomática, taxa de transpiração e teor de clorofila. O segundo experimento, constou dos seis tratamentos citados anteriormente, acrescido de uma testemunha que não recebeu irrigação (sequeiro). A variável analisada foi a produtividade da mandioqueira. O uso de água salina não interferiu nos atributos fisiológicos da mandioqueira, apesar de diminuir sua produtividade.</p>
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