Identification and characterization of high yielding sunflower genotypes suitable for North Eastern Region of Tamil Nadu

Identification and characterization of high yielding sunflower genotypes suitable for North Eastern Region of Tamil Nadu

Authors

  • Y. Poorna Chandra Rao Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India
  • C. Kalaiyarasan Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India
  • S. Kandasamy Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India
  • P. Sudhakar Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India
  • K. Dhanasekaran Department of Soil Science and Agriculture chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, India

Abstract

Field experiment was conducted at the Experimental Farm, Department of Agronomy, Annamalai University, between February and May 2023, to evaluate sunflower genotypes in terms of growth and yield characters of the crop within the northeastern zone of Tamil Nadu.The field experiment comprised seven treatments laid out in randomised block design (RBD), with three replications.The treatments wereseven genotypes viz., two varieties and five hybrids (T1 - CO 4, T2 - DRSF 108, T3 - COSFH 4, T4 - KBSH 44, T5 - KBSH 53, T6 - Sunbred and T7 - Jaya).The results demonstrated that the evaluated sunflower genotypes varied significantly in growth and yield parameters. Among the genotypes, COSFH 4 (T3 ) outperformed all other genotypes tested, recording superior values for growth attributes viz., plant height (140.32cm), leaf area index (3.52), dry matter production (3206.49 kg ha-1), and chlorophyll content index (13.42 CCI), and yield attributes viz., capitulum diameter (22.45 cm), total seed set capitulum-1(850.58), number of filled seedscapitulum-1(690.56), test weight (5.94g), seed yield (1850.37kg ha-1) and stalk yield (3248.71kg ha-1). The minimum values for growth and yield attributes were observed for the genotype CO 4.

Author Biographies

Y. Poorna Chandra Rao, Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

C. Kalaiyarasan, Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

S. Kandasamy, Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

P. Sudhakar, Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

Department of Agronomy, Annamalai University, Annamalai Nagar – 608002, Tamil Nadu, India

K. Dhanasekaran, Department of Soil Science and Agriculture chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, India

Department of Soil Science and Agriculture chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, India

Downloads

Published

20-12-2025

How to Cite

Y. Poorna Chandra Rao, C., K., Dr. S. KANDASAMY, Dr. P. SUDHAKAR, & Dr. K. DHANASEKARAN. (2025). Identification and characterization of high yielding sunflower genotypes suitable for North Eastern Region of Tamil Nadu. Journal of Tropical Agriculture, 63(IV), 268–272. Retrieved from https://jtropag.kau.in/index.php/ojs2/article/view/1644

Issue

Vol. 63 No. IV (2025): Journal of Tropical Agriculture

Section

Short communications

License

Copyright © 2001-11 Kerala Agricultural University. Some rights reserved. This journal and the individual contributions contained in it are protected under copyright by the Kerala Agricultural University and the following terms and conditions apply to their use; Photocopying Single photocopies of single articles may be made for personal use as allowed by national copyright laws. Permission of the publisher and payment of a fee is required for all other photocopying including multiple or systematic copying, copying for advertising or promotional purposes, resale, and all forms of document delivery. Permission may be sought directly from the Editor, Journal of Tropical Agriculture, Department of Agronomy, College of Horticulture,, Kerala Agricultural University, KAU PO, Thrissur 680 656, Kerala, India. (Phone: +91-487-2438325; Fax +91-487-2371040; E-mail: editor.jta@kau.in. Derivative works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institution. Permission of the Publisher is required for resale or distribution outside the institution. Permission of the Publisher is required for all other derivative works, including compilations and translations. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products, liability, negligence, or otherwise, or from any use of any methods, products, instructions or ideas contained in the material herein.