Stability yield indices on different sweet corn hybrids based on AMMI analysis.

Area of Science:

• Agricultural Science
• Plant Breeding
• Agronomy

Background:

• Sweet corn is valued for its high sugar and low starch content, with key sugars including sucrose, fructose, glucose, and maltose.
• Understanding yield indices and their correlation is crucial for consumer satisfaction and agricultural productivity.

Purpose of the Study:

• To evaluate yield indices and their correlations across eight sweet corn hybrids.
• To identify stable and high-performing sweet corn hybrids based on yield and nutritional parameters.

Main Methods:

• A small plot experiment was conducted with a strip plot design and four replications.
• Analysis of yield indices, sugar content (fructose, glucose, sucrose), and mineral content (iron, zinc) using AMMI biplot analysis (IPCA1 and IPCA2).

Main Results:

• Hybrids DB, NO, GS, and GB exhibited stable and high yield performance (IPCA1).
• Fructose and glucose levels were stable across hybrids.
• Hybrid ME showed stability and high performance for iron and zinc (IPCA1).
• Hybrids DE, GB, and GS demonstrated stability and top performance in yield parameters (IPCA2).
• Fructose, glucose, and sucrose were stable across hybrids (IPCA2).
• Hybrids DB and SE showed desirable performance for Lutein and Zeaxanthin.
• Hybrid DE achieved maximum performance for iron and zinc.

Conclusions:

• Specific sweet corn hybrids (DB, NO, GS, GB, DE, SE) show promising stability and high performance for yield and nutritional traits.
• AMMI biplot analysis is effective in identifying superior hybrids for diverse agronomic and quality attributes.