Variation in rice root traits assessed by phenotyping

Roots are the key elements in water saving rice cultivation. So, Background the response of rice roots are to be phenotyped under varied drip irrigation treatments. : This study describes an investigation on rice root Methods phenotyping under drip irrigation treatments in split-split plot design. Two lateral spacing levels (0.8 and 1.2m), laid at two depths of sub surface irrigation (5-10 and 15-20 cm) by solar powered and well operated irrigation were tested using TNRH 180, JKRH 3333 and ADT(R)45 rice genotypes during the summer season (2013 & 2014) in Coimbatore, India. Conventional aerobic irrigation was considered as control. : An increased root length, Results and Discussion root density (length and weight), root Adinosine Tri Phosphotase enzyme activity, root volume and filled grain percentage were favored in aerobic rice under the conditions of 0.8m lateral distance with 5-10cm depth of sub surface drip irrigation (SDI). Improved root characteristics were observed in JKRH 3333 rice hybrid, and root density and thickness favored the filled grains and yield increment in rice by drip irrigation. The 0.8m lateral distance laid out at 5-10cm depth SDI with solar system proliferated more roots at subsurface soil layer with significant yield increment in rice. T. Parthasarathi ( ) Corresponding author: [email protected] : Writing – Original Draft Preparation; : Writing – Review & Editing; : Supervision; : Author roles: Parthasarathi T Vanitha K Mohandass S Vered E Resources; : Writing – Review & Editing Meenakshi V Competing interests: No competing interests disclosed. Parthasarathi T, Vanitha K, Mohandass S How to cite this article: et al. Variation in rice root traits assessed by phenotyping under drip 2017, :125 (doi: ) irrigation [version 2; referees: 1 not approved] F1000Research 6 10.12688/f1000research.9938.2 © 2017 Parthasarathi T . This is an open access article distributed under the terms of the , Copyright: et al Creative Commons Attribution Licence which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Data associated with the article are available under the terms of the (CC0 1.0 Public domain dedication). Creative Commons Zero "No rights reserved" data waiver The project was funded by Netafim Irrigation Ltd., Israel. Grant information: The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. 10 Feb 2017, :125 (doi: ) First published: 6 10.12688/f1000research.9938.1 1 2 3 4