【摘要】 [目的]研究不同浓度NAA对黄豆芽萌发和生长的影响。[方法]以中黄35为供试材料,采用不同的NAA浓度(0.01、0.10、1.00、10.00 mg/L)对黄豆种子进行萌发培养试验,培养7 d后分别测量黄豆种子的萌发率以及胚轴、胚根和胚芽的长度,比较不同浓度的NAA对黄豆种子萌发时的胚轴长、胚轴胚根比的影响。[结果]当NAA的浓度小于10.00 mg/L时,增加NAA浓度能促进黄豆萌发,NAA浓度为1.00 mg/L时黄豆种子萌发率高达58.9%;浓度分别为0.01、1.00、0.10和10.00 mg/L的NAA均能提高黄豆种子的轴根比,10.00 mg/LNAA溶液处理黄豆种子的轴根比最大,平均为2.15,商品性状最好。[结论]10.00 mg/L的NAA溶液处理黄豆可以获得最佳的轴根比和商品性状,对农业生产具有指导意义。更多还原

【Abstract】 [Objective] The purpose was to study the effect of NAA with different concn.on the germination and growth of soybean sprouts.[Method] With Zhonghuang 35 as tested materials,the seed germination experiments of soybean were carried out by using 0.01,0.10,1.00 and 10.00 mg/L NAA.After culture for 7 d,the germination rates and the lengths of plumular axis,radicle as well as germ of soybean seeds were measured to compare the effects of NAA with different concn.on the plumular axis length and hypocotyls-radicle ratio when the soybean seeds germinated.[Result] When NAA was less than 10.00 mg/L,the increase of NAA could promote the seed germination of soybean.When NAA was 1 mg/L the seed germination rate of soybean was up to 58.9%;when the concn.of NAA was 0.01,1.00,0.10 or 10.00 mg/L,it could increase the hypocotyls-radicle ratio of soybean seeds.When the soybean seeds were treated by 10.00 mg/L NAA,the hypocotyls-radicle ratios were greatest and their average was 2.15 and the commodity character of soybean sprouts was best.[Conclusion] The best hypocotyls-radicle ratio and commodity characters could be obtained when the soybean seeds were treated by 10.00 mg/L NAA.It had some guiding significance for agricultural production.更多还原