The response of Faba bean (Vicia faba L.) varieties as evaluated by varied plant population densities in the highlands of Arsi Zone, Southeastern Ethiopia

Abstract

Field experiments were carried out in 2016 and 2017 cropping seasons under on-farm conditions in Lemuna Bilbilo District, Southeastern Ethiopia to evaluate the effects of three varieties Degaga, Gora, Moti, and six plant populations (10, 25 (control), 30,50, 70, and 90 plants m-2) on faba bean specific yield and yield components. The experiments were laid out in a randomized complete block design in split plot arrangement in which varieties were assigned to main plots and plant populations to subplots with three replications. The year combined analysis of data revealed that seed yield, total biomass yield and test weight of seed were significantly (p<0.05) affected by varieties and plant population densities m-2. The highest seed yield (4649, 4594 and 4162 kg ha-1) was obtained at 90,70 and 50 plant m-2 for Degaga, Moti and Gora varieties respectively but, no significant difference between control for Degaga and Moti varieties. The highest total biomass of 9 t ha-1 was recorded from the highest 90 plant population m-2 though not significantly different to the total biomass obtained from 70, 50 and 25 (control) plants m-2. Gora variety significantly recorded the highest test weight of seed (889.2g) than the rest Degaga and Moti varieties. In short, founded on studied agronomic parameters of faba bean, 25 plant population density m-2 was economically recommended for Degaga and Moti varieties whereas, 50 plant population density m-2 was for Gora variety.

Faba Bean Agronomic and Crop Physiology Research in Ethiopia

“…Optimum plant density differs from each variety and location since the different location has different soil type, soil moisture, soil fertility, and relative humidity [46]. In line with these findings, the research conducted on plant densities on faba bean varieties at Lemu-Bilbilo district of Arsi zone, Ethiopia indicated that the highest seed yield of faba bean (4649, 4594, and 4162 kg ha −1 ) was obtained at 90, 70, and 50 plant m −2 for Degaga, Moti and Gora varieties, respectively [47]. The authors also stated that the highest total biomass of 9 t ha −1 was recorded from the highest plant population (90 m −2 ), but did not show significant differences to the total biomass obtained from 70, 50, and 25 (control) plants m −2 .…”

Densidad de población y fertilización orgánica en habas del centro mexiquense

“…En el presente estudio se observó que a un distanciamiento entre plantas de 20 cm hubo más vainas por planta (18.5) (Cuadro 4) pero Dahmardeh et al (2010) La densidad de plantas m -2 tiene un efecto directo sobre el costo de la semilla y el rendimiento final, por lo que es necesario definir la densidad de población óptima para cada variedad y ambiente específico (Dobocha et al, 2019). De acuerdo con los resultados de este estudio lo ideal sería sembrar a 40 o 50 cm entre plantas (31 250 y 25 000 plantas ha -1 ); en la última década el precio de un kilogramo de semilla alcanzó hasta $75.00.…”

“…El incremento en su rendimiento es relevante para esta región, ya que es una especie estratégica en los sistemas de cultivo de pequeños y medianos agricultores (Díaz et al, 2008), pero esta leguminosa es afectada negativamente por factores climáticos, por fertilidad del suelo y plagas y enfermedades. También depende del suplemento de agua, tipo de variedad y densidad de población, entre otros (Dobocha et al, 2019;Cucci et al, 2019;Mohamed y Rashed, 2020).…”

“…En otro estudio hubo un aumento en altura de planta a 33.3 plantas m -2 (Khalil et al, 1993;Al-Suhaibani et al, 2013;El Hag, 2017) o en la producción de forraje y materia seca en vaina a 16 plantas m -2 (Estrada et al, 2017). Como la densidad de plantas m -2 tiene un efecto directo sobre el costo de la semilla y sobre el rendimiento, es necesario establecer un óptimo para maximizar la expresión favorable de caracteres agronómicos en cada variedad y en cada ambiente (Dobocha et al, 2019). Vicia faba L. responde bien en suelos vertisol a un mayor distanciamiento entre surcos y entre plantas lo que permite una mejor expresión fenotípica en ramas por planta, vainas por planta, semillas por vaina y peso de semilla (Gezahegn et al, 2016).…”

Cluster-based pre-scaling up of improved faba bean variety technology demonstration at Arsirobe District of Arsi Zone, Oromia Regional State, Ethiopia

“…Majority of the farmers use low yielding of the local varieties which contribute for low production [10,11]. When comparing the yield of fababean in Ethiopia :it is below the world average due to several factors: among these lack of improved seed is a key [12]. Therefore, this activity was aimed at promoting high yielding and most adaptable faba bean varity called " Ashebeka" in the study area by a new extension modality i.e Large Scale Demonstration (LSD) or cluster-based farming with following general and specifi c objectives.…”