crescimento do algodoeiro colorido pós-poda em solos com distintas psts e doses de esterco
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Abstract
A pesquisa foi conduzida em ambiente protegido no CCTA/UFCG onde objetivou-se avaliar o crescimento de plantas de algodoeiro de fibra naturalmente colorida cv. BRS Topázio, no segundo ciclo produtivo pós-poda, em solos salino-sódico sob esterco bovino. Usou-se o delineamento de blocos casualizados em esquema fatorial 5 x 4, com 3 repetições, cujos tratamentos consistiram de cinco percentagens de sódio trocável - PST (13,6; 22,4; 30,1; 39,0 e 48,0%) e quatro doses de esterco bovino (0; 5; 10 e 15%). Ao encerrar a produção das plantas de algodoeiro (primeiro ciclo) realizou-se uma poda drástica, onde, após as brotações (segundo ciclo) avaliaram-se aos 51 e 91 dias após a poda (DAP) as variáveis: comprimento do ramo (CR), diâmetro do ramo (DR), diâmetro do caule (DC) e número de folhas (NF). Doses de 10% de matéria orgânica favoreceu o comprimento do ramo e, de 15% o diâmetro do ramo e do caule de plantas de algodoeiro cv. BRS Topázio aos 51 e 91 dias após a poda. Percentagens de sódio trocável de até 48% não influenciou o comprimento e o diâmetro de ramos, o diâmetro do caule e o número de folhas do algodoeiro aos 51 e 91 dias após a poda. A interação entre os fatores (PST x MO) promoveu efeito significativo sobre o diâmetro do caule de plantas de algodoeiro aos 91 DAP.
Cotton growth colored post-pruning on soil with different PSTs and manure of doses
SUMMARY: The research was conducted in protected environment in the CCTA / UFCG which aimed to evaluate the growth of naturally colored hp fiber cotton plants. BRS Topaz, the second post-pruning production cycle in saline-sodic soils manure. It used the randomized block design in a factorial 5 x 4, with 3 repetitions and the treatments consisted of five percentages of exchangeable sodium - PST (13.6; 22.4; 30.1; 39.0 and 48.0 %) and four doses of cattle manure (0, 5, 10 and 15%). To cease production of cotton plants (first cycle) held a drastic pruning, where, after the shoots (second cycle) were evaluated after 51 and 91 days after pruning (DAP) variables: branch length (CR), branch diameter (DR), stem diameter (DC) and number of leaves (NF). Doses of 10% organic matter favored branch length and 15% of the diameter of the branch and cotton plants cv stem. BRS Topaz after 51 and 91 days after pruning. Exchangeable sodium in percentages of up to 48% did not influence the length and diameter of branches, the stem diameter and the number of cotton leaves at 51 and 91 days after pruning. The interaction between the factors (PST x MO) has promoted significant effect on stem diameter of cotton plants at 91 DAP.
| Reference Key |
almeida2015revistacrescimento
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| Authors | ;L. L. S. Almeida;R. G. Nobre;L. P. Souza;J. L. Barbosa;J. J. Elias |
| Journal | sensors |
| Year | 2015 |
| DOI |
10.18378/rvads.v10i4.3715
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