Nghiên cứu ảnh hưởng của việc phun ethephon qua lá ở giai đoạn tiền thu hoạch nhằm thúc đẩy nhanh quá trình chín của trái và gây rụng lá mè. | Nội dung Text Ảnh hưởng của việc xử lý ethephon ở giai đoạn tiền thu hoạch lên màu sắc lá thời gian sinh trưởng năng suất và phẩm chất hạt mè Sesamum indicum L. .den color inherit .ttnd ol .ttnd ul .ttnd dl padding 0 0px 0 20px .ttnd hr margin 10px 0px .ttnd a href javascript void 0 .ttnd a href color inherit dtextscript p text-align left dtextscript img vertical-align middle 24 Trường Đại học Nông Lâm TP. Hồ Chí Minh lt br gt lt br gt lt br gt lt br gt lt br gt Effects of ethephon treatment at pre-harvest stage on leave color growth time and lt br gt sesame seed yield and quality Sesamum indicum L. lt br gt lt br gt lt br gt Tuyen T. X. Vo amp Tan D. Nguyen lt br gt Faculty of Agriculture and Natural Resources An Giang University Vietnam National University lt br gt Ho Chi Minh City An Giang Vietnam lt br gt lt br gt lt br gt lt br gt ARTICLE INFO ABSTRACT lt br gt Research Paper The effect of ethephon spray on leaves at pre-harvest stage to acceler- lt br gt ate the ripening process of capsules and sesame defoliation was stud- lt br gt Received April 02 2019 ied. Sesame plant was treated with ethephon at concentrations of 0 lt br gt Revised June 23 2019 50 100 200 300 400 and 500 ppm when the capsules on plant began lt br gt Accepted July 25 2019 to mature the seeds turned black. The results showed that ethephon lt br gt treatment caused yellowing of leaves accelerated defoliation and the lt br gt Keywords growth time of sesame plants was shortened from 5 to 6 days com- lt br gt pared to the control sample. In addition the ethephon concentration lt br gt Chlorophyll index of 50 and 100 ppm caused yellowing of leaves with chlorophyll index lt br gt measured at 3 days after treatment was and respectively. lt br gt Ethephon lt br gt At ethephone concentration of 200-500 ppm caused complete yellowing lt br gt Growth lt br gt and defoliation of leaves in 3 days after treatment. The leaves of control lt br gt Sesamum indicum L sample were still green and had
