search
for
 About Bioline  All Journals  Testimonials  Membership  News


Agricultura Técnica
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0365-2807
EISSN: 0365-2807
Vol. 64, No. 4, 2004, pp. 413-420
Bioline Code: at04047
Full paper language: Spanish
Document type: Note
Document available free of charge

Agricultura Técnica, Vol. 64, No. 4, 2004, pp. 413-420

 en Matico ( Buddleja globosa check for this species in other resources Hope): Evaluation of different accessions, number of harvests, moisture level, and extraction of nutrients
Vogel, Hermine; Razmilica, Iván & González, Benita

Abstract

For domestication purposes, six plant accessions of matico, Buddleja globosa check for this species in other resources Hope, cultivated in a randomized complete block design with a split-plot arrangement for two irrigation levels were studied for two seasons. Besides, the effect of several harvests per year and the nutrient extraction were also evaluated. The three wild accessions had lower leaf yields than the three cultivated ones, 0.17 and 0.25 kg plant-1, respectively, one of which with the highest leaf weight:aerial material ratio (0.64 against 0.54 to 0.57). Within accessions significant differences were also found for the number of shoots per plant (13.3 to 28.5), whereas flavonoid and tannin concentrations were not significantly different. From the first to the second season, there were increases in leaf yield (P ≤ 0.05), from 0.18 to 0.23 kg plant-1, the number of shoots (from 15.8 to 28.0), flavonoid content (from 0.20 to 0.48%), and tannin content (from 1.54 to 2.00%). Water stress effected the yield (0.16 against 0.25 kg plant-1) (P ≤ 0.05). The smallest yields were obtained with three harvests per season (0.19 against 0.29 and 0.25 kg plant-1 for by one and two harvests, respectively). The number of cuttings increased the leaf weight:aerial material ratio from 0.50 to 0.65 and the flavonoid content, whereas the tannin concentration decreased from 3.21 to 1.85% (P ≤ 0.05). The following were extracted from one ton of dried leaves: 18.26 kg N, 2.17 kg P, 12.25 kg K, 7.43 kg Ca, 2.8 kg Mg, 94 g Mn, 24 g Zn, and 11 g Cu.

Keywords
accessions, leaf yield, flavonoids, tannins

 
 es Matico ( Buddleja globosa check for this species in other resources Hope): Evaluación de diferentes accesiones, número de cosechas, humedad del suelo y extracción de nutrientes
Vogel, Hermine; Razmilica, Iván & González, Benita

Resumen

Con fines de domesticación se estudiaron seis accesiones de matico, Buddleja globosa check for this species in other resources Hope, durante dos temporadas, cultivadas en parcelas divididas para dos niveles de riego. Además, se evaluó el efecto del número de cosechas por temporada y la extracción de nutrientes. Las tres accesiones silvestres mostraron menores rendimientos de hojas que las tres cultivadas con 0,17 contra 0,25 kg planta-1 (P ≤ 0,05), una de ellas con el mayor valor peso hojas:material aéreo, 0,64 contra 0,54 a 0,57. Entre las accesiones se encontraron diferencias significativas (P ≤ 0,05) en el número de brotes por planta (13,3 contra 28,5), mientras que en la concentración de flavonoides y taninos éstas no fueron significativas. De la primera a la segunda temporada aumentaron el rendimiento de hojas de 0,18 a 0,23 kg planta-1, el número de brotes de 15,8 a 28,0 y los contenidos de flavonoides de 0,20 a 0,48%, y taninos de 1,54 a 2,00% (P ≤ 0,05). El estrés hídrico afectó al rendimiento (0,16 contra 0,25 kg planta-1) (P ≤ 0,05). Con tres cosechas se obtuvo el menor rendimiento (0,19 contra 0,29 y 0,25 kg planta-1 para una y dos cosechas, respectivamente). Con el número de cortes aumentó la relación hojas:material aéreo de 0,50 a 0,65 y el contenido de flavonoides, mientras que disminuyó el contenido de taninos de 3,21 a 1,85% (P ≤ 0,05). Una tonelada de hojas deshidratadas extrajo 18,26 kg N; 2,17 kg P; 12,25 kg K; 7,43 kg Ca; 2,8 kg Mg; 94 g Mn; 24 g Zn y 11 g Cu.

Palabras-clave
accesiones, rendimiento hojas, flavonoides, taninos

 
© Copyright 2004 - Instituto de Investigaciones Agropecuarias, INIA (Chile).
Alternative site location: http://www.inia.cl/at/agritec.htm

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2024, Site last up-dated on 01-Sep-2022.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Google Cloud Platform, GCP, Brazil