Registration of ‘PVL02’ rice

Abstract

‘PVL02’ (Reg. no. CV-158, PI 691607), a Provisia (BASF) long-grain rice (Oryza sativa L.) cultivar, was developed by the Louisiana State University Agricultural Center at the H. Rouse Caffey Rice Research Station near Crowley, LA, and approved for release in 2019. PVL02 is the second rice cultivar released as part of the Provisia Rice System with resistance to Provisia herbicide, containing the active ingredient quizalofop-p-ethyl, an AACase (Group 1) herbicide. PVL02 was derived from the cross ‘Cheniere’/BASF1-5 and advanced as an F_2:3 row based on agronomic characteristics. Testing in the Provisia preliminary yield trial in 2014 and the Provisia multi-location test in 2015 indicated good yield potential and favorable agronomic characteristics. In 2016, 2017, and 2018, PVL02 was evaluated in 26 replicated trials across seven locations in Louisiana. Four high-yielding commercial cultivars were included as checks: ‘Jupiter’, ‘CL153’, ‘Cheniere’, and ‘PVL01’. The grain yield of PVL02 was 8.2 t ha⁻¹ compared with 9.2 t ha⁻¹ for Jupiter, 8.6 t ha⁻¹ for CL153, 8.5 t ha⁻¹ for Cheniere, and 7.6 t ha⁻¹ for PVL01. PVL02 was taller than the checks. The milled grain length was shorter than typical long grains, with a length-to-width ratio of 2.81. It has a typical US long-grain rice cooking quality with intermediate amylose and gel temperature. PVL02 is moderately susceptible to sheath blight, Cercospora spp., and leaf blast and susceptible to bacterial panicle blight.