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Axillary bud viability and dry matter production of Poa ligularis in Patagonian grasslands: (with 1 table & 4 figures) Phyton
Souto,CP; Becker,GF; Siffredi,GL; Busso,CA; Sternberg,M.
Poa ligularis Nees is one of the dominant perennial grass species in Patagonian grasslands. This is the first field study which investigated the effects of defoliation frequency on its number of viable axillary buds, and subsequent dry matter production during one growing season. Experiments were arranged in a randomized complete block design. Treatments included one defoliation height (10 cm), from one to five times a year, and undefoliated controls. Bud respiratory activity was examined usingthe tetrazolium test and the vital stain Evan's blue. At the end of the growing season, plants that have been defoliated more than three times showed significatively (p<0.05) lower number of respiratory active buds than unclipped controls. A high defoliation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defoliation; Poa ligularis; Axillary buds; Semiarid Argentina; Dry matter production; Patagonia.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100004
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IN VITRO GERMINATION AND VEGETATIVE PROPAGATION THROUGH BUD DEVELOPMENT OF SACHA INCHI (Plukenetia volubilis) Acta biol.Colomb.
HENAO RAMÍREZ,Ana María; URREA TRUJILLO,Aura Inés; ATEHORTÚA GARCÉS,Lucía.
ABSTRACT This study describes the in vitro seed germination and micropropagation of Plukenetia volubilis (sacha inchi), an oilseed crop rich in omega-3 fatty acids, with health benefits and several industrial applications. Seed germination was evaluated in different culture media (MS and 1/2 MS), seed coat presence/absence and culture temperature (18 °C and 28 °C). Micropropagation was performed using axillary bud development (ABD) on nodal segments from in vitro seedlings. KIN, BAP and 2-ip were evaluated for ABD, and the effect of modified MS in 453 mg L-1 CaCl2 and 351.62 mg L-1 MgSO4 on ABD and shoot survival was assessed to improve the process. Finally, six treatments were evaluated to optimize ABD and shoot leaf formation. Seed germination of 91.6 %...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Axillary buds; Calcium; Kinetin; Micropropagation; 2-ip.
Ano: 2022 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2022000100070
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Micropropagation of Salvia guaranitica Benth. through axillary shoot proliferation BABT
Echeverrigaray,Sergio; Carrer,Rosane Postingher; Andrade,Luciana Bavaresco.
Nodal segments from greenhouse grown adult plants of Salvia guaranitica were used to evaluate the effect of culture media and growth regulators on the micropropagation and growth. The highest multiplication rate was obtained on Murashige and Skoog (MS) medium supplemented with 2.22 µM of 6-benzylaminopurine (BAP). The best condition for rooting was MS medium with 2.85 µM indole-3-acetic acid (IAA). Rooted plants were successfully acclimatized and exhibited a normal development until maturity. Using the described protocol, approximately 35 plants per explant were obtained after three months.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth regulators; Shoot culture; Axillary buds.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400018
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