Vol. 11 (2 & 3) : March-June 2020 issue
Green Farming Vol. 11 (2 & 3) : 168-172 ; March-June, 2020
Effect of seedling age on yield and yield components in rice landraces
A. MOHAMMED ASHRAFa1* and SUBBALAKSHMI LOKANADANb2
aICAR-Krishi Vigyan Kendra, Tirur - 602 025, District Tiruvallur,
bDepartment of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003 (Tamil Nadu)
Designation : 1Teaching Associate *(ashrafbsa09040@gmail.com), 2Professor
Subject : Agronomy and Crop Production
Paper No. : P-7868
Total Pages : 5
Received : 21 March 2020
Revised accepted : 29 May 2020
First Page
Citation :
A. MOHAMMED ASHRAF and SUBBALAKSHMI LOKANADAN. 2020. Effect of seedling age on yield and yield components in rice landraces. Green Farming Vol. 11 (2 & 3) : 168-172 ; March-June, 2020.
ABSTRACT
A field study was conducted at Tamil Nadu Agricultural University, Coimbatore in wetland during samba season 2014-15 with an objective to study the effect of seedling age on yield components and economics in rice landraces under irrigated rice ecosystem. The experiment was laid out in Split Plot Design with three replications. The treatments in main plot were three age of seedlings viz., 15, 20 and 25 days old seedlings and in sub plot eight rice landraces viz., Chandikar, Kuliyadichan, Kuruvaikalanjiyam, Norungan, Nootripathu, Black Kavuni, Red Kavuni, Njavara and CO(R) 50 (one high yielding variety). Observations were recorded on yield attributes like total spikelet, filled grains, unfilled grains, spikelet sterility percentage, thousand grain weight, grain yield and straw yield were recorded at the time of harvest. The plant nutrient uptake and nutrient status in soil was also estimated. The study concludes that 15 days old seedling in all the eight rice landraces and one high yielding variety, recorded yield attributes, economics and N, P and K uptake. In rice landraces, Red Kavuni recorded enhanced higher yield attributes, economics compared to other rice landraces.
Key words :
Age of seedlings, Rice landraces, Yield components.