| Resumo: | O hidrogel tem sido uma grande alternativa para o plantio de mudas em condições adversas de
disponibilidade de água, sendo muito utilizado na recuperação de áreas degradadas, porém há a
necessidade de avaliar esta tecnologia como condicionador de germinação e estabelecimento de
plântulas. O trabalho teve como objetivo avaliar o efeito do hidrogel na germinação e
estabelecimento de plântulas de Dalbergia miscolobium. Foram avaliados o índice de velocidade de
emergência (IVE), número de sementes germinadas (NSG), número de folhas (NF), comprimento da parte
aérea (CPA), comprimento de raiz (CR), número de raízes (NR), número de plântulas com fungos
(NPCF), número de plântulas mortas (NPM), peso fresco (PF), peso seco (PS), número de sementes
germinadas sem plântulas (NSGSP) e o número de sementes não germinadas duras (NSNGD), em 5
tratamentos com diferentes dosagens de hidrogel. Foi observada influência do uso do hidrogel nas
variáveis CR, NPM e PF. O tratamento que obteve os melhores resultados foi o tratamento de 0,5g de
hidrogel por litro de substrato utilizado. |
| Abstract: | The hydrogel has been a great alternative for planting seedlings under adverse conditions of water
availability, being widely used in the recovery of degraded areas, but there is the need to
evaluate this technology as a germination conditioner and seedling establishment. The objective of
this work was to evaluate the effect of hydrogel on germination and seedling establishment of
Dalbergia miscolobium. The emergence velocity index (IVE), number of germinated seeds (NSG), number
of leaves (NF), aerial part length (CPA), root length (CR), number of roots (NR), number of
seedlings with fungi (NPCF), number of dead seedlings (NPM), fresh weight (PF), dry weight (PS),
number of germinated seeds without seedlings (NSGSP) and number of ungerminated hard seeds (NSNGD),
in 5 treatments with different dosages of hydrogel. There was influence of hydrogel use on the CR,
NPM and PF variables. The treatment that obtained the best results was the treatment of 0,5g of
hydrogel per liter of substrate used.
Keywords: Dalbergia miscolobium Benth., hydrogel, germination, seedlings.
4The hydrogel has been a great alternative for planting seedlings under adverse conditions of water
availability, being widely used in the recovery of degraded areas, but there is the need to
evaluate this technology as a germination conditioner and seedling establishment. The objective of
this work was to evaluate the effect of hydrogel on germination and seedling establishment of
Dalbergia miscolobium. The emergence velocity index (IVE), number of germinated seeds (NSG), number
of leaves (NF), aerial part length (CPA), root length (CR), number of roots (NR), number of
seedlings with fungi (NPCF), number of dead seedlings (NPM), fresh weight (PF), dry weight (PS),
number of germinated seeds without seedlings (NSGSP) and number of ungerminated hard seeds (NSNGD),
in 5 treatments with different dosages of hydrogel. There was influence of hydrogel use on the CR,
NPM and PF variables. The treatment that obtained the best results was the treatment of 0,5g of
hydrogel per liter of substrate used.
Keywords: Dalbergia miscolobium Benth., hydrogel, germination, seedlings.
The hydrogel has been a great alternative for planting seedlings under adverse conditions of water
availability, being widely used in the recovery of degraded areas, but there is the need to
evaluate this technology as a germination conditioner and seedling establishment. The objective of
this work was to evaluate the effect of hydrogel on germination and seedling establishment of
Dalbergia miscolobium. The emergence velocity index (IVE), number of germinated seeds (NSG), number
of leaves (NF), aerial part length (CPA), root length (CR), number of roots (NR), number of
seedlings with fungi (NPCF), number of dead seedlings (NPM), fresh weight (PF), dry weight (PS),
number of germinated seeds without seedlings (NSGSP) and number of ungerminated hard seeds (NSNGD),
in 5 treatments with different dosages of hydrogel. There was influence of hydrogel use on the CR,
NPM and PF variables. The treatment that obtained the best results was the treatment of 0,5g of
hydrogel per liter of substrate used. |
