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universidade federal da paraíba centro de ciências ... - CCA/UFPb

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20<br />

Proteína bruta, %<br />

18<br />

16<br />

14<br />

12<br />

sc<br />

cc<br />

10<br />

0 1000 2000 3000 4000 5000 6000 7000<br />

Densi<strong>da</strong><strong>de</strong> <strong>de</strong> plantio<br />

Figura 6. Proteína bruta <strong>da</strong> flor <strong>de</strong> se<strong>da</strong> aos 60 dias <strong>de</strong> rebrota em função <strong>da</strong>s <strong>de</strong>nsi<strong>da</strong><strong>de</strong>s <strong>de</strong><br />

plantio 2.500 (2,0m x 2,0m); 3.333 (1,5m x 2,0m) e 6.666 (1,0m x 1,5m)<br />

plantas/ha, nos dois sistemas <strong>de</strong> plantio, sem camalhão (SC) e com camalhão<br />

(CC).<br />

Extrato etéreo<br />

Não houve efeito (P>0, 05) para a variável extrato etéreo <strong>da</strong> flor <strong>de</strong> se<strong>da</strong>, on<strong>de</strong> foi<br />

verificado que os valores médios foram semelhantes para to<strong>da</strong>s as <strong>de</strong>nsi<strong>da</strong><strong>de</strong>s <strong>de</strong> plantio<br />

testa<strong>da</strong>s in<strong>de</strong>pen<strong>de</strong>ntemente do sistema <strong>de</strong> plantio utilizado.<br />

O valor médio <strong>de</strong> extrato etéreo <strong>da</strong> flor <strong>de</strong> se<strong>da</strong> foi <strong>de</strong> 3,76 % no sistema <strong>de</strong> plantio<br />

sem camalhão na <strong>de</strong>nsi<strong>da</strong><strong>de</strong> <strong>de</strong> plantio <strong>de</strong> 2.500 (2,0m x 2,0m); 3.333 (1,5m x 2,0m) e<br />

6.666 (1,0m x 1,5m), plantas/ha, respectivamente. Já no sistema <strong>de</strong> plantio com camalhão<br />

o valor médio <strong>da</strong> flor <strong>de</strong> se<strong>da</strong> foi <strong>de</strong> 3,46 %, para as mesmas <strong>de</strong>nsi<strong>da</strong><strong>de</strong>s <strong>de</strong> plantio (Figura<br />

7). Observa-se que os valores médios <strong>de</strong> extrato etéreo <strong>da</strong> flor <strong>de</strong> se<strong>da</strong> foram semelhantes<br />

para to<strong>da</strong>s as <strong>de</strong>nsi<strong>da</strong><strong>de</strong>s <strong>de</strong> plantio testa<strong>da</strong>s, in<strong>de</strong>pen<strong>de</strong>ntemente do sistema <strong>de</strong> manejo do<br />

solo utilizado.<br />

61

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