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| Schlögl,Paulo Sérgio; Santos,André Luis Wendt dos; Vieira,Leila do Nascimento; Floh,Eny Iochevet Segal; Guerra,Miguel Pedro. |
| Angiosperm and gymnosperm plants evolved from a common ancestor about 300 million years ago. Apart from morphological and structural differences in embryogenesis and seed origin, a set of embryogenesis-regulating genes and the molecular mechanisms involved in embryo development seem to have been conserved alike in both taxa. Few studies have covered molecular aspects of embryogenesis in the Brazilian pine, the only economically important native conifer in Brazil. Thus eight embryogenesis-regulating genes, viz.,ARGONAUTE 1, CUP-SHAPED COTYLEDON 1, WUSCHEL-related WOX, S-LOCUS LECTIN PROTEIN KINASE, SCARECROW-like, VICILIN 7S, LEAFY COTYLEDON 1, and REVERSIBLE GLYCOSYLATED POLYPEPTIDE 1, were analyzed through semiquantitative RT-PCR during embryo development... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed development; Brazilian Pine; Embryogenesis-regulating genes; Zygotic embryogenesis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000100025 |
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| Eira,Mirian T. S.; Silva,E. A. Amaral da; De Castro,Renato D.; Dussert,Stéphane; Walters,Christina; Bewley,J. Derek; Hilhorst,Henk W. M.. |
| Considerable advances in our understanding of coffee seed physiology have been made in recent years. However, despite intense research efforts, there are many aspects that remain unclear. This paper gives an overview of the current understanding of the more important features concerning coffee seed physiology, and provides information on recent findings on seed development, germination, storage and longevity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee; Germination; Germplasm; Longevity; Seed development; Storage. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100011 |
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| Fredes,Claudio; Von Bennewitz,Eduardo; Holzapfel,Eduardo; Saavedra,Felipe. |
| Sensory evaluation of grapes (Vitis vinifera L.) plays a key role in determining the harvest time in grapevine varieties. The harvest time of cv. Carménère is one of the latest of Chile. During the season 2007-2008, the evolution of the appearance of Carménère seeds was evaluated as a harvest criterion, comparing it with the chemical and phenolic ripening. The samples were obtained from an organic vineyard located in Curicó Valley, Chile. Starting at 16 ºBrix, 100 seed berries samples were collected weekly from medium vigor vines in order to register photographically the ventral and dorsal sides of each seed. In addition to the seed tannins percentage, the extractable anthocyanins, total anthocyanins and total polyphenols index, as well as the titratable... |
| Tipo: Journal article |
Palavras-chave: Seed development; Harvest index; Seed color; Phenols. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300005 |
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| Chudasama,Rita S.; Thaker,Vrinda S.. |
| Changes in endogenous gibberellic acid (GA) levels were determined in developing seeds and pods of pigeon pea (Cajanus cajan). Antibodies against GA3 were raised in rabbits and indirect ELISA developed to estimate GA level. Two varieties, black seeded variety (V1) and B.D.N2 (V2), were selected on the basis of their seed index value. The pod length and number of seeds per pod were significantly different for the two varieties. Dry weight, water content (WC), rate of water accumulation, rate of dry matter accumulation (DMA), and GA content in pod and seed were all larger in V1 than in V2. In both varieties, higher GA content was observed during cell elongation and DMA phases, respective to their varietal differences in growth traits. Relationships between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cajanus cajan; Dry matter accumulation; Endogenous gibberellic acid; Seed development; Water content. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000100005 |
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| Pittaya Promsuk; Quanchit Santipracha; Wullop Santipracha. |
| Study of sunn hemp seed development and maturation was studied at the Department of Plant Science, Faculty of Natural Resources, Prince of Songkla University, Hat Yai campus, Hat Yai, Songkhla, during March-June, 2008. The blooming flowers were tagged to indicate the date of flowering. Pods at 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43 and 46 days after flowering were harvested to investigate pod color, seed color and seed quality. The results showed that the sunn hemp had 6 developmental stages of pod color which were green, yellow-green, light grey-green, dark greygreen, grey-brown and grey-brown-black at 10-16, 19-28, 31, 34, 37-40 and 43-46 days after flowering, respectively. The sunn hemp seeds were capable of germination at approximately 25 days... |
| Tipo: Collection |
Palavras-chave: Sunn hemp; Seed development; Physiological maturity; Seed quality; ปอเทือง; การพัฒนาของเมล็ดพันธุ์; การสุกแก่ทางสรีรวิทยา; คุณภาพเมล็ดพันธุ์. |
| Ano: 2010 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5232 |
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