Title of article :
Adaptability and Stability Study of Selected Sweet Sorghum Genotypes for Ethanol Production under Different Environments Using AMMI Analysis and GGE Biplots
Author/Authors :
Kipkorir Rono, Justice Department of Biochemistry and Molecular Biology - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Kimutai Cheruiyot, Erick Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Odongo Othira, Jacktone Department of Biochemistry and Molecular Biology - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Wanjiku Njuguna, Virginia Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Kinyoro Macharia, Joseph Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Owuoche, James Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Oyier, Moses Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya , Machio Kange, Alex Department of Crops - Horticulture and Soil - Egerton University - P.O. Box 536-20115 - Egerton - Kenya
Abstract :
The genotype and environment interaction influences the selection criteria of sorghum (Sorghum bicolor) genotypes. Eight sweet sorghum genotypes were evaluated at five different locations in two growing seasons of 2014. The aim was to determine the interaction between genotype and environment on cane, juice, and ethanol yield and to identify best genotypes for bioethanol
production in Kenya. The experiments were conducted in a randomized complete block design replicated three times. Sorghum canes were harvested at hard dough stage of grain development and passed through rollers to obtain juice that was then fermented
to obtain ethanol. Cane, juice, and ethanol yield was analyzed using the additive main effect and multiplication interaction model
(AMMI) and genotype plus genotype by environment (GGE) biplot. The combined analysis of variance of cane and juice yield of
sorghum genotypes showed that sweet sorghum genotypes were significantly (𝑃 < 0.05) affected by environments (E), genotypes
(G) and genotype by environment interaction (GEI). GGE biplot showed high yielding genotypes EUSS10, ACFC003/12, SS14,
and EUSS11 for cane yield; EUSS10, EUSS11, and SS14 for juice yield; and EUSS10, SS04, SS14, and ACFC003/12 for ethanol yield. Genotype SS14 showed high general adaptability for cane, juice, and ethanol yield.
Keywords :
Adaptability , Stability Study , Sorghum Genotypes , Ethanol Production , AMMI Analysis , GGE Biplots
Journal title :
The Scientific World Journal
