Phyllochron and leaf appearance rate in oat

Abstract: Phyllochron and leaf appearance rate are both important parameters in the production efficiency of agricultural crops. The objectives of this study were to determine the phyllochron and leaf appearance rate in 4 oat cultivars ( Avena sativa L.) in 3 sowing dates and verify the variability of phyllochron and leaf appearance rate among cultivars and sowing dates. The experimental design was the completely randomized with 12 treatments and 20 repetitions. Treatments were formed by the combination of 4 cultivars (URS Charrua, URS Taura, URS Estampa, and URS Corona) and 3 sowing dates in 2014 (April 28, May 28, and July 14). In each plant (repetition) of each treatment, the number of expanded leaves (NEL) was counted 3 times per week from the first leaf emission until flowering. For each plant, cultivar, and sowing date, linear regression was adjusted between NEL and Crop produCtion And MAnAgeMent - Article Phyllochron and leaf appearance rate in oat Gabriela Gorgen Chaves, Alberto Cargnelutti Filho*, Bruna Mendonca Alves, Andre Lavezo, Cleiton Antonio Wartha, Daniela Barbieri Uliana, Rafael Vieira Pezzini, Jessica Andiara Kleinpaul, Ismael Mario Marcio Neu