Yield and Nutritional Quality of Sweet Lupine (Lupinus angustifolius) Grown in Midaltitudes of Lemo District, Hadiya Zone, Southern Ethiopia

Abstract

The study was conducted to determine the yield and nutritional quality of sweet lupine (Lupinus angustifolius.) grown in midaltitude of Lemo District, Southern Ethiopia. The yield and nutritive value of sweet lupine in terms of quantity and quality was conducted using a factorial experiment arranged in a randomized complete block design (RCBD) with three replications. The treatments for the study were two sweet lupine varieties (Vitabore and Sanabore), two locations (Upper Gana and Jewe Kebeles, and six levels of planting spacing: 30 cm × 7 cm (S1), 40 cm × 7 cm (S2), 30 cm × 15 cm (S3), 40 cm × 15 cm (S4), 30 cm × 20 cm (S5), and 40 cm × 20 cm (S6)). The yield, chemical composition, and digestibility among parameters were studied. Sweet lupine varieties in Upper Gana Kebele gave the highest green forage yield (39.58 t/ha) and forage dry matter (4.84 t/ha) at 30 cm × 7 cm planting spacing, respectively. Seed yield (SYD) (t/ha) was highly affected ( P < 0.01 ) by location. The maximum seed (2.98 t/ha) yield was observed in Upper Gana Kebele with the minimum (2.15 t/ha) at Jewe Kebele. The forage in Jewe Kebele gave the highest organic matter (OM) (87.01%) and acid detergent fiber (ADF) (37.50%) content at a stage of 100% flowering. Sweet lupine forage in Upper Gana Kebele gave the highest crude protein (CP) content (23.11%) while the highest forage CP content was recorded at a planting space of 40 cm × 20 cm (23.67%). Sweet lupine forage gave the maximum in vitro organic matter digestibility (IVOMD) (69.10%) at a spacing of 40 cm × 20 cm in Upper Gana. The highest CP (29.11%) content and IVOMD (80.49%) of seed were recorded in Upper Gana Kebele. The overall result of this study suggested that green forage yield and forage dry matter yield are affected by location, planting spacing, and stage of flowering, whereas the chemical composition of sweet lupine forage was affected by location and variety interaction (dry matter and acid detergent fiber), location and stage of flowering interaction (OM, ADF and total ash), location (CP, metabolizable energy (ME), and IVOMD), planting spacing (CP and IVOMD), and stage of flowering (CP and ME). On the other hand, sweet lupine seed yield, seed CP, and IVOMD were affected by location. The large differences in yield and nutritive values observed among sweet lupine varieties, growth environment, planting spacing, and their interactions entail consideration of these factors for appropriate utilization of sweet lupine as a feed resource for livestock.

Evaluation of some lupine genotypes based on genotype by trait (GT) biplot analysis and study the effect of soaking and cooking treatments on some physical and chemical properties of seeds

“…It is suggested that seed yield of these lupine genotypes may be raised through selection for plants with more 100 seed weight, No.pods/plant and No.seeds /plant. These results confirm the finding of Riga et al (2021) who stated that yield components exhibited various trends of associations among themselves. Highly significant and positive associations were observed among number of branches and days to 50% flowering and plant height and between plant height and number of branches /plant (correlation coefficients > 0.60) reporting that the tallest genotypes were lately flowering and increase number of branches /plant.…”

Volume estimation models for avocado fruit

“…The study was conducted in the Upper Gana (7° 34’ 24” N, 37° 46’ 4”E) and Jewe (7° 30’ 35” N, 37° 47’ 1”) Kebeles of Limu district, situated in Hadiya zone, in the Ethiopian Southern Nations, Nationalities, and Peoples’ Region (SNNPR) [ 19 ] ( Fig 1 ). The study area is located at 223 km South of Addis Ababa.…”

“…Based on the data from the Central Statistical Agency of Ethiopia (CSA), the district has an estimated total population of 153,783 and 93% of the people are living in the rural areas and practicing subsistence farming depending on rainfed production system [ 20 ]. The average farm size per family head was estimated to be 0.5 ha [ 19 ].…”

“…In the study area, the annual rainfall ranges between 1300 and 1400 mm with a bi-modal rainfall seasonality, occurring from February to April and from June to September [ 19 ]. The average annual minimum and maximum temperatures were 18°C and 23°C [ 19 ].…”

“…In the study area, the annual rainfall ranges between 1300 and 1400 mm with a bi-modal rainfall seasonality, occurring from February to April and from June to September [ 19 ]. The average annual minimum and maximum temperatures were 18°C and 23°C [ 19 ]. The typical land use system of the district is characterized by Agroforestry (i.e., mixed crop-tree-livestock production) [ 21 ].…”