Characterization of the Genetic Variability of a Sugarcane Commercial Cross Through Yield Components and Quality Parameters

被引：10
作者：
Mancini, M. C. [1 ]
Leite, D. C. [2 ]
Perecin, D. [2 ]
Bidoia, M. A. P. [3 ]
Xavier, M. A. [3 ]
Landell, M. G. A. [3 ]
Pinto, L. R. [3 ]
机构：
[1] Univ Estadual Campinas UNICAMP, CBMEG, BR-13083970 Campinas, SP, Brazil
[2] Univ Estadual Paulista, FCAV, BR-14884900 Jaboticabal, SP, Brazil
[3] Inst Agron Campinas, Ctr Cana, BR-14001970 Ribeirao Preto, SP, Brazil
来源：
SUGAR TECH | 2012年 / 14卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
Plant breeding; Segregation analysis; Heritabilities; Correlation between traits; SACCHARUM SPP; TRAITS; QTLS; DISSECTION;
D O I：
10.1007/s12355-012-0141-5
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The phenotypic characterization as well as the knowledge of the correlation among traits, is the first step to quantify the potential of a cross for further QTL (quantitative trait loci) detection. The present work aimed to evaluate the yield components and quality parameters variability of a mapping population derived from a biparental cross between IACSP95-3018 and IACSP93-3046 at plant cane and ratoon cane as well as to estimate the heritabilities and pair-wise correlation among the traits evaluated. The progeny clones differed significantly for the traits measures indicating the existence of significant amount of variability among them as also as the presence of transgressive clones. Broad-sense heritabilities values were generally high for stalk diameter, stalk weight, stalk height, Brix and Pol% Cane in plant cane and ratoon cane. Tones of sugarcane per hectare (TCH) were significantly correlated with stalk weight and stalk number in both years. Regarding to all the yield components, stalk number together with stalk weight were the most important components in the determination of TCH. While fiber and Pol% Cane were negative correlated showing that they are inversely correlated traits.
引用
收藏
页码：119 / 125
页数：7
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