This research was carried out to examine the effects of different doses of bacterial formulation comprised of a mixture of Bacillus megaterium TV-91C, Pantoea agglomerans RK-92 and Kluyvera cryocrescens TV-113C strains on the plant development and bract quality of poinsettias (Euphorbia pulcherrima Willd. ex Klotzsch), which are one of the most important potted plants grown for their fleshy bracts of the horticultural sector. The study was carried out in a climate-controlled research greenhouse from 8 August 2018 to 15 January 2019 in Erzurum (Turkey). Rooted cuttings of poinsettia [E. pulcherrima Willd. ex Klotzsch cv. Christmas Feelings (CvF)] were used as plant materials in the study. Each of the solutions containing bacterial suspensions 52.5 (T₁), 105 (T₂), 210 (T₃), 420 (T₄) and 840 (T₅) mL · L⁻¹ of water was diluted 5 times with water and 200 mL · pot⁻¹ was applied to the plant rhizosphere. This study revealed that positive changes incurred in plant height, main flower stem length, plant crown width, bract diameter, green leaf and bract leaf area, leaf total nitrogen content and nitrate reductase enzyme activity parameters in poinsettia plants with increasing doses of the bacterial formulation. This effect has reached the maximum level in the number of bracts, main flower stem length, bract diameter, nitrate reductase enzyme activity, plant fresh weight and maximal root length parameters with the T₅ application which has the highest bacterial formulation concentration. The most efficient application of glutamine synthetase enzyme activity was determined as T₄.

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不同接种密度的细菌制剂对大戟生长发育的评价

本研究进行了检查不同剂量包括的混合物的细菌制剂的影响巨大芽孢杆菌TV-91C，成团泛菌RK-92和克吕沃尔cryocrescens在植物发育和苞片质量一品红的TV-113C株（一品红Willd。ex Klotzsch），这是最重要的盆栽植物之一，因其园艺部门的肉片而生长。该研究于2018年8月8日至2019年1月15日在土耳其的埃尔祖鲁姆（Erzurum）的气候控制研究温室中进行。一品红的插条[ E. pulcherrima威尔德。前Klotzsch简历。研究中使用了圣诞节的感觉（CvF）作为植物材料。分别将含有细菌悬液52.5（T ₁），105（T ₂），210（T ₃），420（T ₄）和840（T ₅）mL·L ^-1的溶液分别用水稀释5倍和200 mL·锅^-1应用于植物根际。这项研究表明，随着细菌制剂剂量的增加，一品红植物的株高，主花茎长度，植物冠宽，片直径，绿叶和片叶面积，叶片总氮含量和硝酸还原酶活性参数发生了积极变化。 。在具有最高细菌制剂浓度的T ₅施用中，这种作用已达到level片数量，主要花茎长度，片直径，硝酸盐还原酶活性，植物鲜重和最大根长参数的最大水平。谷氨酰胺合成酶活性最有效的应用被确定为T ₄。