Assessment of Harvest Age of some Sugarcane Genotypes by using Principal Component Analysis Assessment of Harvest Age of some Sugarcane Genotypes by using Principal Component Analysis – Direct Research Journal of Agriculture and Food Science
Original Research Article

Assessment of Harvest Age of some Sugarcane Genotypes by using Principal Component Analysis

Mehareb, Eid. M.*
Sakina, R. Abazied
Fouz, F.M. Abo Elenen
Article Number: DRJAFS2017635983
DOI: https://doi.org/10.26765/DRJAFS2017635983
ISSN: 2354-4147

Vol. 11(8), Pp. 244-253, August 2023

Copyright © 2023

Author(s) retain the copyright of this article

This article is published under the terms of the

Creative Commons Attribution License 4.0.


Abstract

Two field trials were conducted in Upper Egypt conditions at Kom Ombo Agricultural Research Station, (latitude of 24o 28′N and longitude of 320. 57′ E), Aswan Governorate, Egypt during 2019/2020 and 2020/ 2021 seasons (plant cane and first ratoon) to determine the optimum harvest age of the major sugarcane promising genotypes (G. 2003-47, G. 2004-27, G. 2005-47, G. 84-47 and G.T.54-9). The AMMI (Additive main effects and multiplicative interaction) analysis and PCA (principal components biplot) analysis, were utilized to examine and understand the relationship between genotype and environment (G x E). The experimental design was a split plot with three replications. Results showed that harvest ages significantly varied among all studied traits in plant cane as well as first ratoon season. Harvest age of 13 months recorded the highest mean values of stalk length, stalk diameter, stalk weight, brix%, cane and sugar yields, except richness%, sucrose% and sugar recovery% in first ratoon crop and across crops where it recorded the highest values at age of 12-months. By contrast, reducing sugars % and purity% in plant cane, first ratoon and over crops where it recorded the greatest values at age of 10-months and 12-months, respectively. The G. 84-47 genotype surpassed the other genotypes and produced the highest values of brix%. G. 2003-47 genotype surpassed the other genotypes and produced the highest values of sucrose%, purity% and sugar recovery%. Results of the Principal Component Analysis (PCA) showed that the first two components had an Eigen value > 1 and explained about 84.37 % of the total variation among all analyzed variables. The first component (PC1) explained 50.8, 54.2, 45.7, and 57% of the total variation among the tested sugarcane genotypes assessed by different harvesting ages (10, 11, 12 and 13 months) measured for the plant cane and first ratoon seasons and the second component (PC2) explained 38.5, 35.8, 42.6, and 34.6% of the total variation measured by the same variables, respectively. The PC1 had a strong negative correlation with brix% measured at all harvesting ages. The PC1 had a moderate negative correlation with sucrose and sugar recovery and a moderate positive correlation with stalk diameter, reducing sugars and sugar yield calculated based 10, 11 and 12 months. Results display positive correlation and highly significant between cane yield, stalk weight, then cane yield and stalk length followed by cane yield and stalk diameter. Based on the AMMI analysis: the five sugarcane genotypes under investigation could be divided into three groups, early maturity (G 2003-47 and G 84-47) , mid maturity ( G2004-47) and late maturity (G 2005-47 and GT 54-9).

Keyword: Sugarcane, PCA, genotype, correlation, positive, harvest
 Received: May 2, 2023  Accepted: June 3, 2023  Published: August 26, 2023



Copyright © 2025 Direct Research Journal of Agriculture and Food Science

Direct Research Center  logo

Direct Research Center publishes peer-reviewed, open access online journals in areas of Agriculture and Food science, Biology and Biotechnology, Health and Pharmacology, Chemistry and Material science, Engineering and Information Technology and Social Science and Educational Studies.


Creative Commons
Open Access