-The aim of this study was to assess the effect of different coatings on the physiological potential of stylosanthes cv. Campo Grande seeds. The treatments were: uncoated seeds; limestone + PVA glue; limestone + sand + PVA glue; limestone + activated carbon + PVA glue; calcium silicate + PVA glue; calcium silicate + sand + PVA glue; calcium silicate + activated carbon + PVA glue. Posteriorly, the seeds were analyzed for water content (WC), maximum diameter (MAD) and minimum diameter (MID), thousand seed weight (TSW), germination test, germination speed index (GSI), mean germination time (MGT), emergence, emergence speed index (ESI), mean emergence time (MET), shoot and root length, fresh and dry matter of shoot and root. The coating increased the TSW, MAD and MID and decreased its WC. The treatments comprising limestone + PVA glue and limestone + sand + PVA glue increased the germination time, but none of the treatments negatively affected the physiological seed quality. Treatment with calcium silicate + PVA glue was outstanding for germination speed index and fresh and dry matter of shoot and root in the stylosanthes cv. Campo Grande seeds coating.

O objetivo deste trabalho foi avaliar a qualidade das inflorescências de Heliconia stricta e Heliconia bihai cultivadas a pleno sol, com irrigação, sob três tratamentos: adubação química, orgânica e sem adubação. Ao longo do ciclo produtivo, duzentas e oitenta e cinco inflorescências de H. bihai, em 15 meses e 142 inflorescências de H. stricta, em nove meses, foram avaliadas pelo método de amostragem simples ao acaso. A qualidade foi avaliada através da distribuição das inflorescências em cinco classes (C), de acordo com o padrão de qualidade do atacado, e através de duas classes (A e B) de aceitação do varejo. Em H. bihai, o tratamento químico produziu maior número de inflorescências com melhor qualidade. H. stricta produziu maior número de inflorescências, de melhor qualidade, sem adubação.

The aim of this study was to evaluate the effect of different seed coatings on the physiological potential of perennial soybean cv. Comum. The following treatments were tested: control (no coating); limestone + polyvinyl acetate (PVA); limestone + sand + PVA; limestone + charcoal + PVA; calcium silicate + PVA; calcium silicate + sand + PVA; and calcium silicate + charcoal + PVA. Seeds were evaluated for water content (WC), maximum diameter (MAD), minimum diameter (MID), 1000-seed weight (TSW), germination test, germination speed index (GSI), average germination time (AGT), emergence, emergence speed index (ESI), average emergence time (AET), shoot length (SL), root length (RL), dry and fresh matter of shoots (SDM and SFM), and dry and fresh matter of root (RDM and RFM). Coatings influenced GSI, AGT, emergence, and ESI, but germination was unaffected. The use of silicate with or without charcoal led to the same AET as that observed in the uncoated seeds. Coatings did not affect SFM, SDM, or RFM. Coating with limestone + sand + PVA or limestone + charcoal + PVA led to increases in SL, SFM, SDM, RFM, and RDM.

Seed propagation preserves the population genetic variability and helps selecting desirable features. This study evaluated the in vitro germination of Hamatocactus setispinus in six different culture media, 1-MS basal medium full strength; 2-halfstrength MS basal medium; 3-1.0 g L -1 of Peter's CalMag ® 15-05-15 formulation; 4-0.5 g L -1 of Peter's CalMag ® 15-05-15 formulation; 5-MS basal medium supplemented with 10% coconut water and; 6-water and agar, with and without activated charcoal, and the speed of germination index, the mean germination time and the germination rate, root length, shoot length and the number of roots were evaluate. The seedlings with superior development obtained from in vitro germination were acclimatized in two substrates: Biomix ® Floreira; Biomix ® Floreira + sand. Seedling survival, shoot length, shoot diameter, root length, root number, shoot fresh matter weight, root fresh matter weight, shoot dry matter weight and root dry matter weight were evaluated. Peter's 1.0 g L -1 medium without activated charcoal led to the best results for root length (11.36 mm) and root number (3.84). There was 100% of seedling survival. Acclimatization substrates did not differ among themselves and, therefore, they did not affect seedling growth. Keywords: Hamatocactus setispinus, activated charcoal, culture media, cacti. RESUMOGerminação in vitro e aclimatização de Hamatocactus setispinus A propagação de sementes preserva a variabilidade genética da população e ajuda a selecionar características desejáveis. Objetivou-se estudar a germinação in vitro de Hamatocactus setispinus em seis diferentes meios de cultura, 1-meio de cultivo MS; 2-MS ½ força de sais minerais; 3-1 g L -1 da formulação 15-05-15 Peter's ® CalMag; 4-0,5 g L -1 da formulação 15-05-15 Peter's ® CalMag; 5-MS com adição de 10% de água de coco e; 6-água e ágar, com e sem carvão ativado, avaliando o índice de velocidade de germinação, o tempo médio de germinação e a taxa de germinação, comprimento da raiz, comprimento da parte aérea e o número de raízes. As plântulas com desenvolvimento superior obtidas da germinação in vitro foram aclimatizadas em dois substratos: Biomix ® Floreira; Biomix ® Floreira + areia. Foram avaliados: sobrevivência de plântulas, comprimento da parte aérea, diâmetro da parte aérea, comprimento da raiz, número de raízes, matéria fresca da parte aérea, matéria fresca da raiz, matéria seca da parte aérea e matéria seca da raiz. O meio Peter's 1,0 g L -1 sem carvão ativado levou a melhores resultados no comprimento de raiz (11,36 mm) e número de raízes (3,84). Houve 100% de sobrevivência das mudas. Os substratos de aclimatação não diferiram entre si e, por isso não afetaram o crescimento das mudas. Palavras-chave: Hamatocactus setispinus, carvão ativado, meio de cultura, cacto.(1) Received in 15/08/2013 and approved in 10/06/2015.

-The objective of this study was to evaluate the physiological potential of stylosanthes seeds cv. Campo Grande in response to coating with zinc and boron. The treatments were: T1 -uncoated seeds; T2 -seeds coated with calcium silicate; T3 -80 g of B + 60 g of Zn.kg