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| CRUZ,ENIEL DAVID; MARTINS,FÁDUA DE OLIVEIRA; CARVALHO,JOSÉ EDMAR URANO DE. |
| Hymenaea intermedia Ducke é uma Leguminosae-Caesalpinioideae de grande porte, encontrada em áreas de floresta nos Estados do Pará e Amazonas. O trabalho objetivou estudar as características biométricas de frutos e sementes de H. intermedia e o efeito da escarificação na germinação das sementes. Determinou-se o comprimento, a largura e a espessura de frutos e sementes, o número de sementes por fruto, a porcentagem e o tempo médio de germinação e a porcentagem de plântulas anormais e de sementes mortas, em sementes escarificadas e testemunha. A escarificação foi realizada com esmeril elétrico, na parte basal da semente. A semeadura foi efetuada em substrato de areia e serragem (1:1), em quatro repetições de 50 sementes, em delineamento inteiramente... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mean germination time; Dormancy; Scarification; Hymenaea. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000200005 |
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| Cárdenas,Julián; Carranza,Carlos; Miranda,Diego; Magnitskiy,Stanislav. |
| Passiflora seeds germinate erratically presenting difficulties for their handling in a greenhouse. The effect of removing of basal point of seeds (RB) and pre-imbibition of seeds of sweet granadilla and yellow passion fruit in 50, 100, 200, and 400 mg mL-1 solutions of gibberellic acid (GA3) or 0.1% KNO3 solution was studied. The experiment was conducted in greenhouses in La Plata, Colombia. Two accessions PrJ1 and PrJ2 of sweet granadilla were evaluated. There were calculated the final percentage of germination (PG), mean germination time (MGT), and the mean germination rate (MGR). The leaf area and dry mass of seedlings were measured 22 days after sowing (das); with this data, specific leaf area and relation root/shoot were calculated. In all cases, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pre-imbibition; Final percentage of germination; Mean germination time; Mean germination rate; Leaf area. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000300023 |
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| Müller, Rafael Espanhol; Souza, Luiz Antonio de; Pastorini, Lindamir Hernandez; Romagnolo, Mariza Barion. |
| Germination of diaspores and the seedling structure of Ruprechtia laxiflora Meissn. (Polygonaceae) which is a secondary species frequent in forest remnants are described. Seedlings were embedded in hydroxymethacrylate and sectioned in a rotary microtome according to usual techniques in plant anatomy. For bioassays of germination, the experimental design was completely randomized in a 3x2 bifactorial arrangement, corresponding to three temperatures (20, 25 and 30°C) and two light conditions (photoperiod and continuous darkness) for the diaspores newly harvested and in a 4x2 bifactorial arrangement, corresponding to four temperatures (15, 20, 25 and 30°C) and two light conditions (photoperiod and continuous darkness) for diaspores analyzed after storage.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botânica germination percentage; Mean germination time; Germination speed index; Root-stem transition. Fisiologia Morfologia e Anatomia. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32617 |
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| Usberti,Roberto; Martins,Leila. |
| Most tropical forage grass species have dormant seeds, which reduce percentages in germination tests. The objective of this study was to evaluate H2SO4 scarification effects on seed dormancy releasing, through germination time (T50) and variability among germination test replicates, in 630, 94 and 82 seed samples of B. brizantha, B. humidicola and P. maximum, respectively, tested at the Central Seed Testing Laboratory, Campinas, Brazil, from 1991 to 1999. Germination tests used two 4 x 100 replicates of intact and scarified seeds (15-, 10-, 5-minute treatments, respectively). Mean germination time (T50) and variability among germination replicates were also analysed. Statistical analysis was performed by t-test paired samples for means. Scarification... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forage grass species; Mean germination time; Variability among germination test replicates. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222007000200020 |
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