Electronic Journal of Plant Breeding
Open Access
SCOPUS
  • Year: 2017
  • Volume: 8
  • Issue: 1

Influence of quality traits on green cob yield in hybrids of sweet corn (Zea mays L. saccharata)

1Dept. of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India

2Centre for Plant Molecular Biology, Tamil Nadu Agricultural University, Coimbatore, 641 003, India

*E-mail: kavitharice@gmail.com

Abstract

Seventy two sweet corn hybrids developed from eighteen sweet corn lines were studied for association between green cob yield and quality traits. The genotypic correlations revealed that the green cob yield had highest positive and significant correlation with green cob length followed by green cob girth, number of kernels per row, plant height, leaf length, leaf breadth, number of kernel rows per cob, number of leaves, non reducing sugar and total sugar. Days to 50 per cent tasseling, days to 50% silking and days to green cob harvest recorded significant and negative association with green cob yield. The inter association among quality traits showed that total soluble solids recorded positive relationship with total sugar and total sugar had negative association with starch.

Keywords

Genetic correlation, green cob yield, total soluble solids, total sugar-and starch