Canonical correlations in phenological, morphological, production and tassel traits of maize

IF 0.9 4区农林科学 Q3 AGRONOMY

Revista Caatinga Pub Date : 2023-09-01 DOI:10.1590/1983-21252023v36n309rc

D. L. Silveira, A. Cargnelutti Filho, I. Neu, V. Bubans, B. F. Osmari, L.F. Osmari

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引用次数: 0

Abstract

ABSTRACT The objective of this study was to check whether there is linear dependence between phenological, morphological and production traits and tassel traits in maize genotypes. Seven experiments were conducted with 16 maize genotypes, in a randomized block design, with three replicates. Four groups of traits were evaluated: phenological (two), morphological (three), production (four) and tassel (11). Joint analysis of variance and F test at 5% significance level were performed. The matrix of phenotypic correlation coefficients between the traits was estimated and multicollinearity was diagnosed in each group of traits. Associations between the groups of traits were checked by canonical correlation analysis. There is linear dependence between phenological, morphological and production traits and tassel traits in maize genotypes. Phenological (number of days from sowing to 50% of male flowering and number of days from sowing to 50% of female flowering), morphological (plant height and spike height) and production (number of spikes and grain yield) traits are positively associated with tassel traits (tassel branch number and tassel dry matter). Tassel branch number and tassel dry matter can be used for indirect selection of maize plants.

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玉米表型、形态、产量和穗部性状的典型相关性

摘要本研究旨在探讨玉米基因型的物候、形态和生产性状与雄穗性状之间是否存在线性依赖关系。采用随机区组设计，采用16个玉米基因型共7个试验，共3个重复。评价了四组性状:物候(2)、形态(3)、产量(4)和雄穗(11)。进行联合方差分析和5%显著性水平下的F检验。估计各性状间表型相关系数矩阵，诊断各性状间多重共线性。性状组间的相关性采用典型相关分析。玉米基因型的物候、形态、生产性状与雄穗性状之间存在线性关系。物候性状(播种至雄花50%和播种至雌花50%)、形态性状(株高和穗高)和产量性状(穗数和籽粒产量)与雄穗分枝数和雄穗干物质性状呈正相关。雄穗分枝数和雄穗干物质可用于玉米植株的间接选择。

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来源期刊

Revista Caatinga AGRONOMY-

CiteScore

2.10

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976. Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.