Heping Tan , Guiyue Wang , Fucheng Zhao , Fei Bao , Hailiang Han , Xiaocheng Lou

Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, 322100, China
Author    Correspondence author
Maize Genomics and Genetics, 2022, Vol. 13, No. 1   doi: 10.5376/mgg.2022.13.0001
Received: 06 Jan., 2022    Accepted: 12 Jan., 2022    Published: 30 Jan., 2022

This article was first published in Molecular Plant Breeding in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Tan H.P., Wang G.Y., Zhao F.C., Bao F., Han H.L., and Lou X.C., 2022, Correlation and cluster analysis of agronomic characters of 115 waxy corn varieties, Maize Genomics and Genetics, 13(1): 1-10 (doi: 10.5376/mgg.2022.13.0001)

In order to provide basis for high-yield and high-efficiency cultivation and selection and utilization of variety resources of waxy corn, nine agronomic traits of 115 waxy corn varieties were analyzed, and cluster analysis of 115 waxy corn varieties was conducted here. The results showed that ten pairs of agronomic traits showed extremely significant correlation meanwhile six pairs exhibited significant correlation. The genetic diversity analysis showed that the genetic variation of the tested materials was rich, the genetic basis was wide, the coefficient of variation of bald tip length (399.91%) was highest, followed by ear height (15.96%) and rows per ear (10.94%). The genetic diversity index of plant height (2.069) was highest, followed by ear height (2.063) and ear yield (2.053). 115 waxy corn varieties were further clustered into eight groups at distance of 55 by Euclidean distance and the furthest neighbor method. Among them, overall characteristics of group Ⅱ was fine, such as high yield, short growth period, low plant height and ear height and moderate corncob. The group Ⅵ has the highest yield, the largest ear type, the longest growth period and the highest plant. The growth period of group Ⅶ is the shortest, the yield is the lowest, and other characters are also in the lowest position.

Waxy corn; Agronomic Traits; Genetic diversity; Correlation analysis; Cluster analysis