Development of chia plants in field conditions at different sowing-date

The objective of this study was to characterize the development chia plants sown at different dates, and determine relation between duration cycle final number leaves leaf appearance rate on main stem. A field experiment conducted in agricultural year 2016/2017 five sowing dates (09/22/16, 10/28/16, 01/03/17, 02/08/17 03/24/17) edaphoclimatic conditions central region RS, Brazil. randomized block design with four replicates used. For each date, vegetative reproductive phases days °C day (Tb = 11 °C), phyllochron stem were determined. phase ºC varies shorter late sowings response photoperiod reduction. represents largest part total early being overcome by (02/08/17 03/24/17). for from 36.23 (very sowing) 59.88 (early sowing). Later has a smaller accumulated due phase.