Influência do hidroabsorvente sobre plantas de café submetidas a dois níveis de déficit hídrico.

Abstract

This study was carried out to evaluate the influence of waterabsorbent on Coffea arabica plants, variety “catuaí 44”, assayed with two levels of water stress. The experiment was conducted in a fatorial design 2 x 2, with two levels of water stress: DH0 (without water stress) and DH1 (water stress from 60 to 90 days after plant transplant) and two levels of waterabsorbent: SSH (soil without waterabsorbent) and SCH (soil with 5 g of waterabsorbent per recipient, according to field recommendations), in a completely randomized design, with 3 replications. Sixty days after transplant, water stress was initiated and after 30 days, the follow parameters were evaluated: canopy diameter, foliar area, canopy dry matter and root system dry matter. It was observed to canopy diameter, foliar area, canopy dry matter to SSH levels a reduction from DH1 to DH0: 32.38%, 79.47% and 51.12%, respectivelly. However, to SCH levels, the reduction was: 21.14%, 78.76% and 48.95%, respectivelly. To root system dry matter there was significantly differences at the evaluated levels.