基因活化剂对紫色甘薯块根产量的影响  

EFFECT OF A GENE ACTIVATOR ON TUBER YIELD OF PURPLE SWEET POTATO

作　　者：李凤华[1] 汤绍虎[2] 周启贵[2] 李坤培[2] 杨秀荣[1] 

机构地区：[1]遵义师范学院生命科学系,贵州遵义563003 [2]西南师范大学生命科学学院,重庆400715

出　　处：《西南农业大学学报（自然科学版）》2004年第5期606-608,共3页Journal of Southwest Agricultural University

基　　金：重庆市农业综合开发办"国家农业综合开发科技示范项目"资助(2001-20)

摘　　要：基因活化剂使用浓度(A)设3个水平:375×(A1)、750×(A2)、1500×(A3)稀释液;使用时间(B)设4个水平:浸渍种苗基部1h(B1)和1次(B2)、2次(B3)、3次(B4)叶面追肥,收获时测定块根鲜重。结果表明:A1,A2,A3的块根产量分别比对照提高38.60%,61.70%和42.54%,B1,B2,B3和B4的块根产量分别比对照提高38.74%,64.33%,47.37%和40.06%,与对照差异均达显著水平(P<0.05)。A2B2为最佳水平组合,平均块根产量比对照提高89.77%,且与所有水平组合之间都有显著差异(P<0.05)。用750倍的基因活化剂浸渍种苗基部1h再追肥1次,可显著提高紫色甘薯的块根产量。The diluted solution (by 375, 750 and 1 500 times, designated by A_1, A_2 and A_3) of a newly developed gene activator was used to treat the plants of purple sweet potato by dipping the basal part of the seed stem for 1 h (B_1) or by foliar-spraying the plants at 3 different dates (B_2, B_3 and B_4). As compared with the control, treatments A_1, A_2 and A_3 significantly increased tuber yield (as expressed by fresh weight) by 38.60%, 61.70% and 42.54%, and treatments B_1, B_2, B_3 and B_4 increased tuber yield by 38.74%, (64.33%), 47.37% and 40.06%, respectively. A_2B_2 was the optimum combination, improving tuber yield by 89.77%.

关 键 词：基因活化剂 紫色甘薯 块根产量 

分 类 号：Q945.1[生物学—植物学]