-This paper aimed to evaluate the effect of packaging, environments, and storage periods on physiological quality of Talisia esculenta (A. St. Hil.) Radlk seeds. Seeds were conditioned in PET transparent bottle, Kraft paper bag, and transparent polyethylene bag; they were stored in chamber (18 °C; 50% RH), in freezer (-21 ± 2 °C; 95% RH), and under laboratory natural environment (28 ± 5 °C; 65% RH). They were evaluated at the 0, 25 th , 50 th , 75 th , and 100 th storage day for moisture content, thousand seed weight, emergence percentage, emergence rate index, length, and dry mass of shoot and root. T. esculenta seeds should be stored in chamber or laboratory natural environment, packed in polythene bag up to 25 days. The Kraft paper bag and the PET bottle cannot be used for storing T. esculenta seeds. Freezer is not recommended for storing T. esculenta seeds because it makes them unviable.Keywords: Conservation; Native forest; Recalcitrant. ARMAZENAMENTO DE SEMENTES DE PITOMBEIRA [Talisia esculenta (A. St. Hil) Radlk -SAPINDACEAE] EM DIFERENTES AMBIENTES E EMBALAGENSRESUMO -Este trabalho teve por objetivo avaliar o efeito da embalagem, do ambiente e período de armazenamento sobre a qualidade fisiológica de sementes de Talisia esculenta (A. St. Hil.) Radlk. As sementes foram acondicionadas nas embalagens: garrafa pet transparente, saco de papel Kraft e saco de polietileno transparente em ambientes: câmara (18 °C; 50% UR do ar), freezer (-21 ± 2 °C; 95% UR do ar) e natural de laboratório (28 ± 5 °C; 65% UR do ar). Aos 0, 25, 50, 75 e 100 dias de armazenamento foram avaliados: teor de água, peso de mil sementes, porcentagem de emergência, índice de velocidade de emergência, comprimento e massa seca da parte aérea e raiz. Sementes de T. esculenta devem ser armazenadas em câmara ou ambiente natural de laboratório, embaladas em saco de polietileno por até 25 dias. A embalagem saco de papel Kraft e garrafa pet não devem ser utilizados para armazenamento de sementes de T. esculenta. O armazenamento das sementes de pitombeira em freezer não é recomendado, pois as tornam inviáveis.Palavras-chave:Conservação; Espécie nativa; Recalcitrante.

Cowpea has great socioeconomic importance, especially in the North and Northeast of Brazil, and its genetic improvement has become increasingly relevant. This study aimed to assess the genetic divergence among cowpea genotypes of the active germplasm bank of the Agronomic Institute of Pernambuco to indicate the most divergent and productive as parents aiming at enriching its breeding program in this institution. The experiment was carried out at the experimental station of Itapirema, Goiana, PE, in a randomized block design with four replications. Thirty genotypes were used in the study, being two of them the controls (Miranda IPA 207 and Paulistinha). The parameters flowering, number of pods per peduncle, number of pods per plant, pod length, ten pod weight, grain index, number of grains in ten pods, hundred-grain weight, grain yield per hectare, plant habit, color of flowers, leaves, pods, and grains, and grain shape were assessed. Genetic divergence was observed among the cowpea genotypes. Pod length and weight, flowering, hundredgrain weight, and the number of pods per plant were the main contributors to genetic divergence. Crosses indicated to enable new gene combinations more favorable for cowpea are Pitiúba x Cabeçudo, Pitiúba x Manteiga, and Pitiúba x Costela de Vaca.

O objetivo do estudo foi descrever a morfologia da germinação de plântulas normais de Senna cana (Nees & Mart.) H. S. Irwin & Barneby e, descrever as plântulas anormais. A coleta das sementes foi realizada no Parque Nacional Vale do Catimbau, Buíque - PE. As sementes foram escarificadas, desinfestadas e lavadas com água deionizada. Foram utilizadas quatro repetições de 25 sementes, semeadas sobre papel toalha e postas para germinar em B.O.D a 20-30ºC. A emissão da radícula ocorreu no terceiro dia após semeadura, coloração bege amarelada, tenra, cilíndrica, com pelos radiculares. Do 7º ao 11º dia, alongamento do hipocótilo e surgimento das raízes secundárias. O hipocótilo cilíndrico, herbáceo, coloração amarela, com tricomas curtos. No 17º dia, o surgimento do epicótilo pubescente. Aos 45 dias, o sistema radicular pivotante, com comprimento de 3,0 a 3,5 cm de coloração marrom enegrecida. O hipocótilo de 2,5 a 3,0 cm, cilíndrico, reto ou tortuoso, verde-claro no ápice e amarelado na base. Cotilédones persistentes, limbo levemente pendente, verde-escuro em ambas as faces e nervação evidente. Os protófilos compostos, pinados, alternos, peciolados, verde-claro, com dois folíolos e muitos tricomas. A semente de S. cana apresenta germinação epígea, sendo as plântulas classificadas como fanerocotiledonares.Palavras-chave: Caatinga; estudo morfológico; espécie nativa. MORPHOLOGY OF SEED GERMINATION OF Senna cana (Nees & Mart.) H.S. Irwin & Barneby ABSTRACT: The objective of the study was to describe the germination morphology of normal seedlings of Senna cana (Nees & Mart.) H. S. Irwin & Barneby and, describe the abnormal seedlings. The seeds were collected in the Vale do Catimbau National Park, Buíque - PE. The seeds were scarified, disinfested and washed with deionized water. Four replicates of 25 seeds were used, sown on paper towel and put to germinate in B.O.D at 20-30ºC. The emission of the radicle occurred on the third day after sowing, beige yellowish color, tender, cylindrical, with root hairs. From 7th to 11th day, hypocotyl elongation and secondary root development. The cylindrical hypocotyl, herbaceous, yellow color, with short trichomes. On the 17th day, the appearance of the pubescent epicotyl. At 45 days, the pivotal root system, with 3.0 to 3.5 cm length of blackish brown coloration. Hypocotyl 2.5-3.0 cm, cylindrical, straight or tortuous, light green at apex and yellow at base. Persistent cotyledons, slightly pendulous limb, dark green on both cheeks and obvious veining. The prototyphs composed, pinnate, alternate, petiolate, light green, with two leaflets and many trichomes. The S. cana seed presents epigene germination, the seedlings being classified as phanerocotonares.Keywords: Caatinga; morphological study; native species.

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