CORRELATION ANALYSIS OF YIELD-RELATED ATTRIBUTES, GROWTH PARAMETERS AND BIOCHEMICAL TRAITS IN ONION (ALLIUM CEPA L.) CULTIVAR GAWO-2

T.A. Faldu¹, Ashwin Trivedi²* and N.A. Patel³

¹B. A. College of Agriculture, AAU, Anand, Gujarat, 388110

²ICAR-Directorate of Medicinal & Aromatic Plants Research,Anand, Gujarat

³Main Vegetable Research Station, AAU, Anand, Gujarat

Email: aptrivedi2004@gmail.com

Received-25.12.2023, Revised-14.01.2024, Accepted-25.02.2024

Abstract: Onion (Allium cepa L.) is a significant commercial vegetable crop cultivated across diverse climatic regions globally, including tropical, subtropical, and temperate zones. In India, it holds agricultural and medicinal significance, being utilized for culinary purposes and as a component in traditional medicine formulations. This study aimed to investigate the interrelationship between various morphological and physiological traits in onion plants. The experiment was conducted using a Randomized Block Design (RBD) with twelve treatments and three replications. The analysis of the results indicated a highly significant positive correlation between marketable yield and growth parameters such as plant height, number of leaves, and leaf length. Additionally, there was a positive correlation with yield components including polar diameter, equatorial diameter, and average bulb weight, as well as various quality parameters such as TSS, reducing sugars, total soluble sugars, total phenols, and pyruvic acid. Plant height in onions was positively correlated with different growth parameters, such as the number of leaves, leaf length, and total dry matter. It also showed a positive correlation with yield components like polar diameter, equatorial diameter, average bulb weight, and marketable yield. Furthermore, the polar diameter of the bulb was positively correlated with TSS, total sugars, and total phenols.

Keywords: Correlation, Onion, Marketable yield, TSS

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