Vegetative Characterization of Upland Rice Genotypes from Vale Do Ribeira, Sao Paulo State, Brazil.

At Brazil, rice is the most consumed cereal, with average per capita consumption of 40-50 kg year^-1. The Vale do Ribeira, in the São Paulo State has soil and climatic conditions that favor the rice crop development. The objective of this study was to performer the characterizing vegetative of rice genotypes (Oryza sativa L.) grown in upland condition in Vale do Ribeira-SP. Rice genotypes were collected in 2015 at Barra do Turvo quilombos, Eldorado, Registro, Cananéia and Iporanga city. Genotypes were named with de letters OSRV, followed by numeral. Were evaluated 42 genotypes coming from the collections. IAC 202 cultivar was the control. The genotypes were cultivated during the agricultural year 2015/16 at Unesp - Campus de Registro. Sowing occurred on December 11, 2015. Plant height, stem diameter, fresh matter, dry matter, plants lodging and length of flag leaf were evaluated. The means were submitted to analysis of variance (F test) and compared by Skott Knott test (5% probability). The genotypes with higher height of plants were those that obtained averages of height greater or equal to 1.09m being genotypes OSVR024, OSVR037, OSVR035 and OSRV009. There was no significant difference for stem diameter, with the mean values close to 5.65mm. The genotypes that presented higher averages of fresh matter were OSVR004, OSVR05, OSVR034, OSVR035 and OSVR038. For dry matter determination, the genotypes presented similar averages and there was no significant difference. The genotypes OSVR039B, OSVR001, 0SVR037, 0SVR039, OSVR033 and OSVR030 were classified as having higher lodging because they had means of 21.6% or more of plant lodging. The others upland rice genotypes were classified as having little or no lodging. Rice genotypes OSVR009, OSVR037 and OSVR024 presented the largest length of flag leaf (length greater than 0.36m).