3 research outputs found
EVALUATION OF YIELD COMPONENT TRAITS OF HONEYBEE-POLLINATED (Apis mellifera L.) RAPESEED CANOLA (Brassica napus L.)
Recent introduction of hybrid varieties raises the question if bees (Apis mellifera L.) contribute as pollinator agents in developing the full yield potential of rapeseed (Brassica napus L.). In order to evaluate the yield achieved by B. napus cv. Artus pollinated by A. mellifera testing was carried out in the district of Freire, La Araucan a Region, Chile. This consisted in isolating or excluding rapeseed plants from pollinators with exclusion cages. Treatments applied were total exclusion (T1), partial exclusion (T2) and free pollination (T0) with a density of 6.5 hives ha(-1), in order to determine the following yield components traits: grains per silique, siliques per plant, 1000 grain weight and yield. The experimental design used was randomized complete blocks with three treatments and three replicates. Results obtained show that the parameter least affected by bee intervention was the grains per silique variable. In contrast, siliques per plant and 1000 grain weight parameters presented significant differences, contributing to a yield greater than 5 t ha(-1); which represented a figure 50.34% higher than in the treatment without bees. It may be concluded that the inclusion of bees in crops is fully justified as a production tool
Evaluation of yield component traits of Honeybee-Pollinated (Apis mellifera L.) Rapeseed Canola (Brassica napus L.)
Recent introduction of hybrid varieties raises the question if bees (Apis mellifera L.) contribute as pollinator agents
in developing the full yield potential of rapeseed (Brassica napus L.). In order to evaluate the yield achieved by
B. napus cv. Artus pollinated by A. mellifera testing was carried out in the district of Freire, La Araucan铆a Region,
Chile. This consisted in isolating or excluding rapeseed plants from pollinators with exclusion cages. Treatments
applied were total exclusion (T1), partial exclusion (T2) and free pollination (T0) with a density of 6.5 hives ha-1,
in order to determine the following yield components traits: grains per silique, siliques per plant, 1000 grain weight
and yield. The experimental design used was randomized complete blocks with three treatments and three replicates.
Results obtained show that the parameter least affected by bee intervention was the grains per silique variable. In
contrast, siliques per plant and 1000 grain weight parameters presented significant differences, contributing to a
yield greater than 5 t ha-1; which represented a figure 50.34% higher than in the treatment without bees. It may be
concluded that the inclusion of bees in crops is fully justified as a production tool
Evaluaci贸n de par谩metros de rendimiento del raps ( Brassica napus L.) polinizado por abejas ( Apis mellifera L.).
Recent introduction of hybrid varieties raises the question if bees (
Apis mellifera L.) contribute as pollinator agents in developing the
full yield potential of rapeseed ( Brassica napus L.). In order to
evaluate the yield achieved by B. napus cv. Artus pollinated by A.
mellifera testing was carried out in the district of Freire, La
Araucania Region, Chile. This consisted in isolating or excluding
rapeseed plants from pollinators with exclusion cages. Treatments
applied were total exclusion (Tl), partial exclusion (T2) and free
pollination (TO) with a density of 6.5 hives ha -1 , in order to
determine the following yield components traits: grains per silique,
siliques per plant, 1000 grain weight and yield. The experimental
design used was randomized complete blocks with three treatments and
three replicates. Results obtained show that the parameter least
affected by bee intervention was the grains per silique variable. In
contrast, siliques per plant and 1000 grain weight parameters presented
significant differences, contributing to a yield greater than 5 t ha -1
; which represented a figure 50.34% higher than in the treatment
without bees. It may be concluded that the inclusion of bees in crops
is fully justified as a production tool.La reciente introducci贸n de variedades h铆bridas plantea la
interrogante de la contribuci贸n que pueda tener la presencia de
abejas ( Apis mellifera L.) como agentes polinizadores para
desarrollar en pleno el potencial productivo del raps ( Brassica napus
L.). Con el objetivo de evaluar el rendimiento alcanzado por B. napus
cv. Artus polinizado por A. mellifera, se realiz贸 un ensayo en la
localidad de Freire, Regi贸n de La Araucan铆a, Chile. 脡ste
consisti贸 en aislar o excluir las plantas de raps de los
polinizadores mediante el uso de jaulas excluidoras. Los tratamientos
consistieron en la exclusi贸n total (T1), exclusi贸n parcial
(T2) y libre polinizaci贸n (T0) con una densidad de 6,5 colmenas
ha-1 , con el fin de determinar los siguientes componentes del
rendimiento: granos por silicua, silicuas por planta, peso de los 1000
granos y rendimiento. El dise帽o experimental utilizado fue de
bloques completos al azar con tres tratamientos y tres repeticiones.
Los resultados obtenidos mostraron que el par谩metro menos afectado
por la intervenci贸n de la abeja fue la variable granos por
silicua. En contraste, los par谩metros silicuas por planta y peso
de los 1000 granos experimentaron diferencias significativas
contribuyendo a una producci贸n que super贸 5 t ha-1 , lo que
significa un aumento de un 50,34% comparado con el tratamiento sin
presencia de abejas. Estos resultados permiten concluir que la
inclusi贸n de las abejas en los cultivos est谩 plenamente
justificada como una herramienta de producci贸n