Genotype-Environment Interaction (Gei) and Adaptability of Improved Sorghum Varieties Tested in the Segou Region.

EasyChair Preprint 7485

Abstract

Cultivated sorghum [Sorghum bicolor (L.) Moench] is an important cereal for the Ségou region. The cereal plays an essential role in household food security. In recent decades, rainfall and temperature variability have already affected the livelihoods and well-being of rural populations in the region. Thus, the need to disseminate new sorghum genotypes adapted (improved varieties) and stable to various environments was the objective of this study. The mission focused on the yield potential and the stability of the genotypic performances of 52 improved varieties of sorghum in the first year and of the 20 best varieties retained in the second year in the rural communes of Pelengana, Sakoïba, Cinzana and Sebougou/Region of Ségou from 2017 to 2020. The results of this work made it possible to determine the genotype-environment interactions of new varieties compared to the varieties of the study sites. The evaluation of genotype-environment interaction on grain yield contributed to the analysis of the stability of promising sorghum genotypes with four mega–environments were identifiable, namely Diakoro, Diakobougou, Seribougou and Sekoro. 'study. The results of the second year confirmed that the stability of yields of certain sorghum genotypes is generally associated with certain environmental factors. The average yields of the genotypes varied from 1302 Kg/ha (016-SB-BC1-F6CT-1019) in Diakoro to 808 Kg/ha (12A/016-SB-CS-DU-30) in Diakobougou in the area of study. Keywords: Sorghum, improved varieties, genotype-environment, food security.

Keyphrases: Food Security., Improved Varieties, Sorghum

@booklet{EasyChair:7485,
  author    = {Djeneba Diarra and Aly Boubacar and Abdoulaye G. Diallo and Timbely Dommo},
  title     = {Genotype-Environment Interaction (Gei) and Adaptability of Improved Sorghum Varieties Tested in the Segou Region.},
  howpublished = {EasyChair Preprint 7485},
  year      = {EasyChair, 2022}}