Madras Agricultural Journal
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Research Article | Open Access | Peer Review

Tiller Dynamics, Light Interception Percentage and Yield of Rice Cultivars Under System of Rice Intensification (SRI) as Influenced by Nursery Techniques and Spacing

Volume : 100
Issue: Jan-mar
Pages: 131 - 134
Published: April 30, 2023
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Abstract


Field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore to find out the tiller dynamics, light interception ercentage of rice cultivars under system of rice intensification as influenced by nursery techniques and spacing. The experiment was laid out in a split plot design. The main plot treatments include two nursery techniques such as mat and conventional nursery to raise seedling for SRI and two cultivars viz., CORH 3 hybrid and ADT 43 variety and sub plot consisted three square crop geometry levels viz., 25 x 25 cm, 30 x 30 cm and 35 x 35 cm, with three replications. The results revealed that, tillering behaviour, phyllochron and grain yield did not vary due to nursery techniques. Regarding crop spacing tillering behaviour, phyllochron and rate of leaf appearance was faster in widely planted rice cultivars compared to 25 x 25 cm spacing. Light interception percentage was higher in CORH 3 and also closer spacing intercepted the more light than wider spacing. Regarding yield the performance CORH 3 was superior over ADT 43 as it produced 16.9 per cent higher yield and 25x25 cm for variety (ADT 43), 30x30 cm for hybrid (CORH 3) is optimum for obtaining higher grain yield.

DOI
Pages
131 - 134
Creative Commons
Copyright
© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

Keywords


Tillering behaviour leaf emergence rate light interception grain yield.
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