Evaluation of medium maturity group of soybean (Glycine max L. Merr) for agronomic performance and adaptation in Sudanian zone of Burkina Faso

Abstract

Soybean is an economically important crop that provides oil and high-quality protein. In Burkina Faso, soybean is one of the promising crops identified in the framework of the strategy for the development of agricultural sectors. However, very few improved varieties have been developed. The identification of newly improved varieties with high agronomic potential and adapted to the climatic conditions will strengthen soybean production in the country. The objective of this study was to evaluate the agronomic performance of 24 soybean genotypes at the Farako-Bâ Research Station in the Sudanian zone of Burkina Faso. The experimental design was an alpha lattice arranged in a 50 cm × 5 cm with 3 replications. The results of this research revealed significant differences (p <0.05) among genotypes with reference to days to flowering, days to maturity, number of nodules, plant height, pod clearance, number of pods, pod shattering, hundred seed weight and number of nodes. Nodules score and diameter, number of branches and grain yield were non-significant. Based on agronomical traits, three genotype groups were clustered. Clusters 1 consisted of the high grain yield groups with the genotypes TGX2017-5E (2083.33 kg/ha), TGX1993-4FN (1666.67 kg/ha), TGX2017-6E (1666.67 kg/ha) and TGX2016-4E (1583.33 kg/ha), being the highest yielding.

Evaluation of Early Maturity Group of Soybean (Glycine max L. Merr.) for Agronomic Performance and Estimates of Genetic Parameters in Sudanian Zone of Burkina Faso

“…Results showed that 7 genotypes of soybean were the earliest (45-48 days) and better than the control early genotype G175 (50 days). Compared with previous work, the early maturity check genotype G175 took fve 5 days more in the climatic condition of Burkina Faso to reach 50% fowering [14]. Tis result is suggesting a probable photoperiod sensitivity observed for that genotype.…”

“…As a consequence, the management of pod shattering is of great importance for achieving higher productivity and reducing yield losses [33]. Globally, the genotypes of the early maturity group of soybean seem more sensitive to pod shattering than those of the medium maturity group, as shown by the work of [14]. In general, pod shattering is afected by diferent environmental factors (dry climate, low humidity, high temperature, and rapid temperature changes) and irrigation systems [34,35].…”

“…Most genotypes in the trial showed symptoms of rust (R6 stage) and SMV diseases with a score of 2 (25% of these leaves tissues recovered with symptoms). In general, symptoms with a score of 2 afect less grain yields of soybean genotypes [14]. Several diseases, including soybean rust, frogeye leaf spot, red leaf blotch (Coniothyrium glycines), and sudden death syndrome (SDS), have been reported as major soybean diseases in Africa [36].…”