Adriana Sanchez Urdaneta - Academia.edu (original) (raw)
Uploads
Papers by Adriana Sanchez Urdaneta
Revista De La Facultad De Agronomia, 2004
En el manejo de un huerto frutal, es importante conocer los factores ambientales que sincronizan ... more En el manejo de un huerto frutal, es importante conocer los factores ambientales que sincronizan las estaciones de crecimiento y el periodo en que inicia y ocurre el proceso de diferenciacion floral, lo cual permite definir la etapa mas adecuada para realizar practicas culturales que promueven la produccion fuera de temporada. Por ello se evaluo el efecto de la fertilizacion foliar nitrogenada y anillado en la iniciacion y diferenciacion floral de tres selecciones de durazno, en Montecillo, Mexico. Los arboles fueron asperjados 0, 2, y 4 veces con nitrogeno (N) y anillados (A) 30 dias (d) despues de las aplicaciones de N. Las evaluaciones se realizaron 74, 53, 30, 15 y 0 dias antes del anillado (DAA); 30, 53, 74 y 95 dias despues del anillado (DDA). Las selecciones CP95-1C, CP91-8 y CP91-17 presentaron iniciacion y diferenciacion floral en diferentes epocas debido a las aplicaciones de N+A, los arboles no fertilizados fueron los ultimos en iniciarse y diferenciarse (42 d), en comparacion con los fertilizados y anillados. Las yemas independientemente de la aplicacion de N+A y de la seleccion, diferenciaron el pistilo y levantaron el estilo 53 DDA y la floracion dependio de la etapa de diferenciacion de las yemas. En CP95-1C, 4N+A adelanto la floracion 55 d comparado con su testigo.
World Rabbit Science, 2015
The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets... more The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets containing increasing inclusion rates of amaranth (Amaranthus dubius Mart. ex Thell.): 0 (A0), 160 (A16) and 320 g/kg (A32 diet). Diets were formulated isoproteic and isocaloric to meet the nutrient requirements of growing rabbits. One hundred and thirteen weaned New Zealand White rabbits (mean±standard deviation weight: 760±102 g), individually caged, were randomly assigned to one of the 3 experimental diets. Rabbits were fed ad libitum from 35 to 87 d of age, and health status and performance traits were monitored. The coefficients of total tract apparent digestibility of the diets were measured between 42 and 46 d of age in 12 rabbits per treatment. Amaranthus dubius contained 209 g/kg dry matter (DM) of crude protein and 398 g/kg DM of neutral detergent fibre. There were no significant differences between treatments in weight gain (mean 21.6 g/d) and live weight at the end of the fattening period (mean 1883 g). Daily feed intake was higher (P<0.05) in A0 than in A16 and A32 diets (85.4 vs. 73.7 and 69.9 g/d, respectively), and feed conversion rate improved with increased inclusion of A. dubius in the diet (from 3.84 to 3.28 for A0 and A32 diets, respectively; P<0.05). Health status was not affected by the amaranth inclusion rate. Total tract apparent digestibility showed high values, with no differences among diets except for ether extract. Thus, A. dubius could be considered as an alternative source of protein and fibre for rabbit feeding in tropical and subtropical regions.
ABSTRACT The morph anatomy of sepals and peduncle of the fruit of Psidium guajava L was described... more ABSTRACT The morph anatomy of sepals and peduncle of the fruit of Psidium guajava L was described with the purpose of establishing their similarities that explain the preference of Brevipalpus phoenicis (Geijskes) for those structures. Fifty healthy medium size guava fruits, var. "Criolla Roja" were harvested and fixed with formaldehyde, acetic acid and alcohol (FAA). Sepals and peduncles were removed from the fruits and paraphin-embedded to get the histological preparations using rotatory microtome. Digitalized images and measurements were taken with LEICA® microscope and Image Pro Plus® Program. Even though, the sepals and peduncle are morphologically and functionally different, their tissues are anatomically similar, by having a uni stratified epidermis and similar width cuticle, the parenchyma cells are isodiametric and both tissues have large intercellular spaces, those characters could explain the preference by B. phoenicis for both structures. Se describe la morfoanatomía de sépalos y pedúnculo del fruto de Psidium guajava L., con la finalidad de establecer las semejanzas anatómicas que explican la preferencia de Brevipalpus phoenicis (Geijskes) por esas estructuras. Se cosecharon y fijaron en formaldehído, ácido acético y alcohol (FAA) 50 frutos sanos de guayabo, tipo "Criolla Roja". Sépalos y pedúnculos de esos frutos se removieron para obtener preparaciones histológicas mediante procesos previos de deshidratación, inclusión en parafina y cortes al micrótomo de rotación. Imágenes digitalizadas fueron tomadas con Microscopio LEICA® y el Programa Image Pro Plus®. A pesar de que los sépalos y el pedúnculo son morfológica y funcionalmente diferentes, ambas estructuras se asemejan anatómicamente, debido a la presencia de epidermis uniestratificada, cutícula de similar espesor, células del tejido parenquimático isodiamétricas y amplios espacios intercelulares, lo que podría explicar en parte la preferencia del ácaro por las mismas.
Revista Científica UDO …
Page 1. Revista UDO Agrícola 9 (1): 217-224. 2009 217 Oligonychus psidium Estebanes y Baker (Acar... more Page 1. Revista UDO Agrícola 9 (1): 217-224. 2009 217 Oligonychus psidium Estebanes y Baker (Acari: Tetranychidae): Fluctuación poblacional e importancia como plaga ocasional del cultivo del guayabo, Psidium guajava L. ...
…, 2011
El amaranto (Amaranthus dubius Mart. ex Thell.) es utilizado como planta forrajera en la alimenta... more El amaranto (Amaranthus dubius Mart. ex Thell.) es utilizado como planta forrajera en la alimentación de ovinos, caprinos, porcinos y bovinos, además, de ser reportada como arvense en diversos cultivos comerciales. Se evaluó el contenido de metales en hojas, tallos y panículas de amaranto recolectado en época lluviosa y seca. Las plantas fueron cultivadas en
Revista Chapingo Serie Horticultura, 2012
The aim of this study was to quantify mucilages, pectins, hemicelluloses, and cellulose of nopali... more The aim of this study was to quantify mucilages, pectins, hemicelluloses, and cellulose of nopalitos (edible, as vegetable, young cladodes of flat-stemmed spiny cacti) of most consumed Mexican cultivars, and sweet and acid cactus pear fruits of Opuntia spp. The hypothesis is that, regardless of their unavailable polysaccharides diversity, nopalitos and cactus pear fruits are rich sources of soluble and insoluble dietary fiber. Twelve cultivars of Opuntia spp. were used. Nopalitos had a significant variation in structural polysaccharides among the cultivars: mucilages (from 3.8 to 8.6% dry matter (DM)) averaged near a half of pectins content (from 6.1 to 14.2% DM) and tightly bound hemicelluloses (from 2.2 to 4.7% DM), which were the less abundant polysaccharides, amounted 50% of the loosely bound hemicelluloses (from 4.3 to 10.7% DM). Acid fruits (or xoconostle) had significantly higher unavailable polysaccharides content than sweet fruit, and contain similar proportions than nopalitos. Unavailable polysaccharides represent a high proportion of dry tissues of nopalitos and cactus pear fruits, composition of both of these soluble and insoluble polysaccharides (total dietary fiber) widely vary among cultivars without an evident pattern. Nopalitos and cactus pear fruit can be considered an excellent source of dietary fiber.
Psidium guajava L., estructuras de preferencia del ácaro Brevipalpus phoenicis (Geijskes) (Acari:... more Psidium guajava L., estructuras de preferencia del ácaro Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae)
The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets... more The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets containing increasing inclusion rates of amaranth (Amaranthus dubius Mart. ex Thell.): 0 (A0), 160 (A16) and 320 g/kg (A32 diet). Diets were formulated isoproteic and isocaloric to meet the nutrient requirements of growing rabbits. One hundred and thirteen weaned New Zealand White rabbits (mean±standard deviation weight: 760±102 g), individually caged, were randomly assigned to one of the 3 experimental diets. Rabbits were fed ad libitum from 35 to 87 d of age, and health status and performance traits were monitored. The coefficients of total tract apparent digestibility of the diets were measured between 42 and 46 d of age in 12 rabbits per treatment. Amaranthus dubius contained 209 g/kg dry matter (DM) of crude protein and 398 g/kg DM of neutral detergent fibre. There were no significant differences between treatments in weight gain (mean 21.6 g/d) and live weight at the end of the fattening period (mean 1883 g). Daily feed intake was higher (P<0.05) in A0 than in A16 and A32 diets (85.4 vs. 73.7 and 69.9 g/d, respectively), and feed conversion rate improved with increased inclusion of A. dubius in the diet (from 3.84 to 3.28 for A0 and A32 diets, respectively; P<0.05). Health status was not affected by the amaranth inclusion rate. Total tract apparent digestibility showed high values, with no differences among diets except for ether extract. Thus, A. dubius could be considered as an alternative source of protein and fibre for rabbit feeding in tropical and subtropical regions.
Revista De La Facultad De Agronomia, 2004
En el manejo de un huerto frutal, es importante conocer los factores ambientales que sincronizan ... more En el manejo de un huerto frutal, es importante conocer los factores ambientales que sincronizan las estaciones de crecimiento y el periodo en que inicia y ocurre el proceso de diferenciacion floral, lo cual permite definir la etapa mas adecuada para realizar practicas culturales que promueven la produccion fuera de temporada. Por ello se evaluo el efecto de la fertilizacion foliar nitrogenada y anillado en la iniciacion y diferenciacion floral de tres selecciones de durazno, en Montecillo, Mexico. Los arboles fueron asperjados 0, 2, y 4 veces con nitrogeno (N) y anillados (A) 30 dias (d) despues de las aplicaciones de N. Las evaluaciones se realizaron 74, 53, 30, 15 y 0 dias antes del anillado (DAA); 30, 53, 74 y 95 dias despues del anillado (DDA). Las selecciones CP95-1C, CP91-8 y CP91-17 presentaron iniciacion y diferenciacion floral en diferentes epocas debido a las aplicaciones de N+A, los arboles no fertilizados fueron los ultimos en iniciarse y diferenciarse (42 d), en comparacion con los fertilizados y anillados. Las yemas independientemente de la aplicacion de N+A y de la seleccion, diferenciaron el pistilo y levantaron el estilo 53 DDA y la floracion dependio de la etapa de diferenciacion de las yemas. En CP95-1C, 4N+A adelanto la floracion 55 d comparado con su testigo.
World Rabbit Science, 2015
The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets... more The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets containing increasing inclusion rates of amaranth (Amaranthus dubius Mart. ex Thell.): 0 (A0), 160 (A16) and 320 g/kg (A32 diet). Diets were formulated isoproteic and isocaloric to meet the nutrient requirements of growing rabbits. One hundred and thirteen weaned New Zealand White rabbits (mean±standard deviation weight: 760±102 g), individually caged, were randomly assigned to one of the 3 experimental diets. Rabbits were fed ad libitum from 35 to 87 d of age, and health status and performance traits were monitored. The coefficients of total tract apparent digestibility of the diets were measured between 42 and 46 d of age in 12 rabbits per treatment. Amaranthus dubius contained 209 g/kg dry matter (DM) of crude protein and 398 g/kg DM of neutral detergent fibre. There were no significant differences between treatments in weight gain (mean 21.6 g/d) and live weight at the end of the fattening period (mean 1883 g). Daily feed intake was higher (P<0.05) in A0 than in A16 and A32 diets (85.4 vs. 73.7 and 69.9 g/d, respectively), and feed conversion rate improved with increased inclusion of A. dubius in the diet (from 3.84 to 3.28 for A0 and A32 diets, respectively; P<0.05). Health status was not affected by the amaranth inclusion rate. Total tract apparent digestibility showed high values, with no differences among diets except for ether extract. Thus, A. dubius could be considered as an alternative source of protein and fibre for rabbit feeding in tropical and subtropical regions.
ABSTRACT The morph anatomy of sepals and peduncle of the fruit of Psidium guajava L was described... more ABSTRACT The morph anatomy of sepals and peduncle of the fruit of Psidium guajava L was described with the purpose of establishing their similarities that explain the preference of Brevipalpus phoenicis (Geijskes) for those structures. Fifty healthy medium size guava fruits, var. "Criolla Roja" were harvested and fixed with formaldehyde, acetic acid and alcohol (FAA). Sepals and peduncles were removed from the fruits and paraphin-embedded to get the histological preparations using rotatory microtome. Digitalized images and measurements were taken with LEICA® microscope and Image Pro Plus® Program. Even though, the sepals and peduncle are morphologically and functionally different, their tissues are anatomically similar, by having a uni stratified epidermis and similar width cuticle, the parenchyma cells are isodiametric and both tissues have large intercellular spaces, those characters could explain the preference by B. phoenicis for both structures. Se describe la morfoanatomía de sépalos y pedúnculo del fruto de Psidium guajava L., con la finalidad de establecer las semejanzas anatómicas que explican la preferencia de Brevipalpus phoenicis (Geijskes) por esas estructuras. Se cosecharon y fijaron en formaldehído, ácido acético y alcohol (FAA) 50 frutos sanos de guayabo, tipo "Criolla Roja". Sépalos y pedúnculos de esos frutos se removieron para obtener preparaciones histológicas mediante procesos previos de deshidratación, inclusión en parafina y cortes al micrótomo de rotación. Imágenes digitalizadas fueron tomadas con Microscopio LEICA® y el Programa Image Pro Plus®. A pesar de que los sépalos y el pedúnculo son morfológica y funcionalmente diferentes, ambas estructuras se asemejan anatómicamente, debido a la presencia de epidermis uniestratificada, cutícula de similar espesor, células del tejido parenquimático isodiamétricas y amplios espacios intercelulares, lo que podría explicar en parte la preferencia del ácaro por las mismas.
Revista Científica UDO …
Page 1. Revista UDO Agrícola 9 (1): 217-224. 2009 217 Oligonychus psidium Estebanes y Baker (Acar... more Page 1. Revista UDO Agrícola 9 (1): 217-224. 2009 217 Oligonychus psidium Estebanes y Baker (Acari: Tetranychidae): Fluctuación poblacional e importancia como plaga ocasional del cultivo del guayabo, Psidium guajava L. ...
…, 2011
El amaranto (Amaranthus dubius Mart. ex Thell.) es utilizado como planta forrajera en la alimenta... more El amaranto (Amaranthus dubius Mart. ex Thell.) es utilizado como planta forrajera en la alimentación de ovinos, caprinos, porcinos y bovinos, además, de ser reportada como arvense en diversos cultivos comerciales. Se evaluó el contenido de metales en hojas, tallos y panículas de amaranto recolectado en época lluviosa y seca. Las plantas fueron cultivadas en
Revista Chapingo Serie Horticultura, 2012
The aim of this study was to quantify mucilages, pectins, hemicelluloses, and cellulose of nopali... more The aim of this study was to quantify mucilages, pectins, hemicelluloses, and cellulose of nopalitos (edible, as vegetable, young cladodes of flat-stemmed spiny cacti) of most consumed Mexican cultivars, and sweet and acid cactus pear fruits of Opuntia spp. The hypothesis is that, regardless of their unavailable polysaccharides diversity, nopalitos and cactus pear fruits are rich sources of soluble and insoluble dietary fiber. Twelve cultivars of Opuntia spp. were used. Nopalitos had a significant variation in structural polysaccharides among the cultivars: mucilages (from 3.8 to 8.6% dry matter (DM)) averaged near a half of pectins content (from 6.1 to 14.2% DM) and tightly bound hemicelluloses (from 2.2 to 4.7% DM), which were the less abundant polysaccharides, amounted 50% of the loosely bound hemicelluloses (from 4.3 to 10.7% DM). Acid fruits (or xoconostle) had significantly higher unavailable polysaccharides content than sweet fruit, and contain similar proportions than nopalitos. Unavailable polysaccharides represent a high proportion of dry tissues of nopalitos and cactus pear fruits, composition of both of these soluble and insoluble polysaccharides (total dietary fiber) widely vary among cultivars without an evident pattern. Nopalitos and cactus pear fruit can be considered an excellent source of dietary fiber.
Psidium guajava L., estructuras de preferencia del ácaro Brevipalpus phoenicis (Geijskes) (Acari:... more Psidium guajava L., estructuras de preferencia del ácaro Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae)
The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets... more The effects on performance and digestibility in growing rabbits were studied by comparing 3 diets containing increasing inclusion rates of amaranth (Amaranthus dubius Mart. ex Thell.): 0 (A0), 160 (A16) and 320 g/kg (A32 diet). Diets were formulated isoproteic and isocaloric to meet the nutrient requirements of growing rabbits. One hundred and thirteen weaned New Zealand White rabbits (mean±standard deviation weight: 760±102 g), individually caged, were randomly assigned to one of the 3 experimental diets. Rabbits were fed ad libitum from 35 to 87 d of age, and health status and performance traits were monitored. The coefficients of total tract apparent digestibility of the diets were measured between 42 and 46 d of age in 12 rabbits per treatment. Amaranthus dubius contained 209 g/kg dry matter (DM) of crude protein and 398 g/kg DM of neutral detergent fibre. There were no significant differences between treatments in weight gain (mean 21.6 g/d) and live weight at the end of the fattening period (mean 1883 g). Daily feed intake was higher (P<0.05) in A0 than in A16 and A32 diets (85.4 vs. 73.7 and 69.9 g/d, respectively), and feed conversion rate improved with increased inclusion of A. dubius in the diet (from 3.84 to 3.28 for A0 and A32 diets, respectively; P<0.05). Health status was not affected by the amaranth inclusion rate. Total tract apparent digestibility showed high values, with no differences among diets except for ether extract. Thus, A. dubius could be considered as an alternative source of protein and fibre for rabbit feeding in tropical and subtropical regions.