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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.2013.tde-30102013-170714
Document
Author
Full name
Ricardo Toshiharu Matsuzaki
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2013
Supervisor
Committee
Minami, Keigo (President)
Purquerio, Luis Felipe Villani
Cardoso, Antônio Ismael Inácio
Title in Portuguese
Quelatos de ferro afetam o crescimento e a produção de rúcula cultivada em sistema hidropônico
Keywords in Portuguese
Eruca sativa
Hidroponia
Nutrientes
Produção
Quelatos de ferro
SPAD
Abstract in Portuguese
Foram conduzidos dois experimentos com o objetivo de avaliar a eficiência do uso de quelatos de ferro no cultivo hidropônico de rúcula em ambiente protegido. O delineamento experimental utilizado foi o inteiramente casualizado com 4 repetições e 6 tratamentos: Fe-IDHA (ácido D,L aspártico, N-(1,2 dicarboxietil) tetra sódico), Fe-EDTA (ácido etilenodiamino tetra acetic), Fe-ORGÂNICO (a base de aminoácidos), Fe-EDDHA (ácido etilenodiamino - di (o - hidroxifenil-acético o-o 4,8%) e Fe-HBED (ácido N, n`-Bis (2-Hidroxibenzil) N- etilenodiamina n`dipropiônico) e testemunha (sem adição de ferro). O primeiro experimento foi conduzido no período de 8 de maio a 7 de junho de 2012 e o segundo entre 13 de junho e 13 de julho de 2012. As mudas de rúcula, da cultivar "Folha Larga", foram transplantadas aos 10 DAS. As avaliações biométricas foram realizadas aos 10, 15, 20, 25 e 30 dias após o transplante (DAT) para: altura das plantas, número de folhas, área foliar, massa fresca e seca das folhas e massa seca das raízes. Aos 15, 20, 25 e 30 dias após o transplante (DAT) foram determinados o índice relativo de clorofila (IRC) e os teores de nitrogênio e ferro das folhas. Todos os quelatos possibilitaram fornecimento suficiente de ferro para o adequado crescimento e produtividade de rúcula em NFT. Plantas submetidas aos tratamentos Fe-HBED e Fe-EDDHA foram estatisticamente semelhantes ao quelato Fe-EDTA e Fe-ORGÂNICO, mas superiores ao Fe-IDHA e testemunha em relação ao crescimento.
Title in English
Iron chelates affect growth and yield arugula cultivated in hidroponic system
Keywords in English
Eruca sativa Miller
Hydroponics
Iron chelates
Nutrients
Production
Relative chlorophyll index
Abstract in English
Two experiments were carried out to evaluate the efficiency of using iron chelates in hydroponic rocket salad in a greenhouse. The experimental design was completely randomized with 4 replications and six treatments: Fe-IDHA, Fe-EDTA, Fe-ORGÂNIC, Fe-EDDHA and Fe-HBED) and control. The first experiment was conducted from May 8 to June 7, 2012 and the second between 13 June and 13 July 2012. The seedlings of rocket salad variety Folha Larga were transplanted at 10 DAS. The biometric evaluations were performed at 10, 15, 20, 25 and 30 DAT, and analyzed to: plant height, number of leaves, leaf area, fresh and dry weight of leaves and dry weight of roots. At 15, 20, 25 and 30 days after transplanting (DAT) were determined relative chlorophyll index (RCI) and nitrogen and iron contents of the leaves. All chelates made it possible sufficient supply of iron for the adequate growth and productivity of rocket in NFT. Plants subjected to treatments Fe-HBED and Fe- EDDHA were statistically similar to chelate Fe-EDTA and Fe-ORGANIC, but higher than the Fe-IDHA and control in relation to growth.
 
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Publishing Date
2014-02-11
 
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