Ảnh hưởng của Silic đến sinh trưởng và năng suất giống mè đen ADB1 (Sesamum indicum L.) trong điều kiện thiếu nước

Abstract

Lack of irrigation water seriously affects the productivity of several crops. The study was carried out to determine the dose of silicon spray to help sesame plants to give high yield in the condition of water shortage. The experiment was arranged in a completely randomized block design with 8 treatments with 6 replications. Experimental treatments included watering with no silic spraying (1), no watering, no silic spraying (2), no watering and silic spraying at a concentration of 25 mg/L (3), 50 mg/L. (4), 75 mg/L (5), 100 mg/L (6), 125 mg/L (7) and 150 mg/L (8). The silic was sprayed 2 times when stop watering and then one week after stop watering. Experimental results showed that in the condition of lack of water for sesame plant, spraying with 100 mg/L silicon helped maintain an increase in plant height, number of leaves, number of pods, number of seeds/pod, SPAD index and seed yield. Sesame plants under the condition of lack of water without silicon spraying were significantly affected growth and seed yield, reducing yield by 34% compared to the watering as recomentdation treatment.