Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (8): 1928-1932.DOI: 10.16178/j.issn.0528-9017.20250210

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Evaluation of tropical adaptability of agronomic and quality traits in fresh maize

YANG Yu(), FU Jun, DENG Honglin, DENG Tao, WAN Yuting, SUN Bo   

  1. Yunnan Modern Agricultural Industry Research Institute Co. ,Ltd. ,Kunming 650000,Yunnan
  • Received:2025-03-21 Online:2026-08-11 Published:2026-08-20

Abstract:

This study aimed to evaluate the yield and quality performance of various fresh maize varieties under tropical conditions in Laos,with the goal of identifying adaptable,high-yielding,and superior-quality varieties. Fifteen fresh maize varieties(13 Chinese varieties,1 local Lao variety,and 1 Thai variety)were planted in field trials in Vientiane,Laos. Key parameters including yield,agronomic traits(plant height,ear length,ear diameter,kernel number per ear),and edible quality(appearance,odor,color,etc.)were measured. Results showed that T1,T13,and T15 exhibited the highest yields,with T1 achieving a maximum yield of 17 815.33 kg·hm-2,while T7 had the lowest yield but the highest edible quality score(89.28). Chinese varieties outperformed Lao and Thai varieties in yield,tenderness,waxiness/sweetness. Redundancy analysis revealed that ear height(26.6%)and ear diameter(22.4%)were the predominant factors influencing edible quality. This study provided a scientific basis for selecting high-yield and high-quality fresh maize varieties in tropical regions,offering practical insights for optimizing regional agricultural collaboration models and directional breeding strategies.

Key words: fresh maize, yield, quality, variety comparison

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