NGHIÊN CỨU XÁC ĐỊNH GIỐNG SẮN (MANIHOT ESCULENTA CRANTZ) THÍCH HỢP CHO ĐIỀU KIẸN TRỒNG TRỌT NHỜ NƯỚC TRỜI TẠI VÙNG ĐỒI NÚI BÁC TRUNG BỘ, THÍCH ỨNG VỚI BIẾN ĐỔI KHÍ HẬU

Abstract

The study was conducted in 2018 in order to evaluate growth and development o f several cassava varieties grown in rainfed mountainous areas in three provinces in Northern Central (Thanh Hoa, Nghe An, Ha Tỉnh). In this study, eight cassava varieties were tested fo r their drought tolerance, including KM325, KM140, KM94, KM98-1, KM98-7, HL-S11, Sa21-12, Sa06 in which KM325 was a check variety. Results showed that the variety KM140 took the shortest time fo r germination (7days) and had good tolerance to droughts under rainfed condition. KM140 had a significantly higher yield o f 38,6 tons/ha compared to the check variety and the other varieties in rain-fed condition.
Keywords: Cassava varieties, drought tolerance, Northern Central, rainfed moutainous.