03770nab a2200313 i 4500003000900000005001700009008004100026040001800067072001400085100002000099100001700119100001500136100001800151100002600169100001900195245010000214500007600314520122600390520144201616650002203058650001403080650001703094650001603111650002503127773019603152856007703348942001603425999001503441BR-BrBNA20230920103104.0230704b2019    bl.ar|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aH60b1830  aMarques, L.J.P.  aBianco, M.S.  aBianco, S.  aFilho, A.B.C.  aCerveira Junior, W.R.  aCarvalho, L.B.  aWeed interference on the accumulation of dry mass and macronutrients of eggplant ‘nápoli’  aPublicação on-line, 27 ref.; 2 tables; 3 illus.; Summaries (En, Pt)  a

ABSTRACT - The presence of weeds may affect both growth and nutrition of
agricultural crops due to interference. The objective was to evaluate the interference
of weeds in the dry mass distribution and in the accumulation of dry mass and
macronutrients in eggplant. The treatments consisted of increasing weed-free and
weedy periods (0-14, 0-28, 0-42, 0-56, 0-70, 0-84, 0-98, 0-112, 0-126, 0-140 and 0-154 days
after transplanting) in eggplant ‘Nápoli’. The experiment was arranged in a randomized
block design with three replicates. Weeds affected the distribution of dry mass
between vegetative and reproductive organs of eggplant. There was a significant
reduction in the accumulation of dry mass and macronutrients when weeds grew
with eggplant crop beyond 42 days after transplanting, reaching the maximum
reduction of 79%, 75%, 80%, 82%, 83%, 83% and 80% in the accumulation of dry
mass, K, N, Ca, Mg, P and S, respectively. Therefore, the weed community significantly
affects the growth and mineral nutrition of eggplant ‘Napoli’, and there should be no
weed-crop coexistence beyond 28 days after seedling transplanting.

Keywords: Solanum melogena, weed competition, plant growth, mineral nutrition.

  a

RESUMO - A convivência com plantas daninhas pode afetar o crescimento e a
nutrição de culturas agrícolas devido à interferência. O objetivo deste estudo foi
avaliar a interferência das plantas daninhas na distribuição de massa seca e no
acúmulo de massa seca e de macronutrientes em plantas de berinjela. Os tratamentos
consistiram de períodos crescentes de convivência e de controle de plantas
daninhas (0-14, 0-28, 0-42, 0-56, 0-70, 0-84, 0-98, 0-112, 0-126, 0-140 e 0-154 dias
após o transplantio) na cultura da berinjela cultivar Nápoli. O experimento foi
disposto em delineamento em blocos casualizados com três repetições. As plantas
daninhas afetaram a distribuição de massa seca entre os órgãos vegetativos e
reprodutivos das plantas de berinjela. Houve redução expressiva no acúmulo de
massa seca e macronutrientes quando as plantas daninhas conviveram com a
cultura de berinjela além de 42 dias após o transplante, atingindo a máxima
redução de 79%, 75%, 80%, 82%, 83%, 83% e 80% no acúmulo de massa seca, K,
N, Ca, Mg, P e S, respectivamente. Portanto, a comunidade infestante afeta
significativamente o crescimento e a nutrição mineral de berinjela Nápoli, não
devendo haver convivência além de 28 dias após o transplante das mudas.

Palavras-chave: Solanum melogena, competição de plantas daninhas, crescimento
de plantas, nutrição mineral.  aSOLANUM MELONGENA  aBERINJELA  aERVA DANINHA  aCRESCIMENTO  aNUTRIÇÃO VEGETAL0 088691816dLondrina-PR : Sociedade Brasileira da Ciência das Plantas Daninhas, 1978o2023-031023tPlanta Daninha (Brazil)x0100-8358; 1806-9681 (on-line)gv. 37 p. 1-9; (2019)wBR2023000498  uhttps://www.scielo.br/j/pd/a/GM774WhB56hHMxLkm5HfHFf/?format=pdf&lang=en  cAnalítica  c9548d9548