The development of suitable nutrient media for high-value floricultural nurseries assumes great significance. In the present investigation, the cuttings of two Chrysanthemum varieties (Pusa Aditya and Jaya) were grown in cyanobacterium-amended mixes (sand or rooting mix comprising cocopeat, vermiculite, and perlite in 3:1:1). Three cyanobacterial cultures—BF1 (Anabaena torulosa), BF4 (Anabaena doliolum) and RPAN8 (Anabaena laxa) were used to amend individually, and analyses undertaken after 30 days were compared with the indole butyric acid (IBA) treated control cuttings. Chrysanthemum cuttings grown in Anabaena laxa amended rooting mix brought about 30–40% enhancement in the concentrations of indole acetic acid (IAA) in the root tissues. Plant growth and biometrical parameters showed one-two fold enhancement in root volume, dry biomass of root and shoot tissues. Available nitrogen and micronutrients were enriched by 50–70% in the cyanobacterium amended mixes of both varieties. A significant and positive correlation was recorded between dehydrogenase activity, root biofilm formation ability of cyanobacteria with plant growth, and elicited plant enzyme activities. Scanning microscopic analyses illustrated effective colonisation by the inoculated cyanobacterium. Anabaena torulosa and Anabaena laxa performed best with Pusa Aditya and Jaya respectively. Pusa Aditya responded better to cyanobacterial cultures as compared to Jaya, in terms of overall performances based on biochemical and biometric analyses. Tripartite interactions among inoculants, medium and plant variety revealed significant effects. Such amended mixes can be integrated into nursery management practices of floricultural crops as an option, to generate more robust and healthy plants, with a reduced dosage of chemicals.

开发适合高价值花卉苗圃的营养培养基具有重要意义。在本调查中，两种菊花品种（Pusa Aditya和Jaya）的插条生长在蓝藻改良的混合物中（沙子或生根混合物，以 3:1:1 的比例包含椰糠、蛭石和珍珠岩）。三种蓝藻培养物——BF1 ( Anabaena torulosa )、BF4 ( Anabaena doliolum ) 和 RPAN8 (Anabaena laxa ) 用于单独修正，30 天后进行的分析与吲哚丁酸 (IBA) 处理的对照插条进行比较。在Anabaena laxa种植的菊花插条改良的生根混合物使根组织中吲哚乙酸 (IAA) 的浓度提高了 30-40%。植物生长和生物特征参数显示根体积、根和芽组织的干生物量增加了 1-2 倍。在这两个品种的蓝藻改良混合物中，有效氮和微量营养素增加了 50-70%。脱氢酶活性、蓝藻根生物膜形成能力与植物生长和引发的植物酶活性之间存在显着的正相关关系。扫描显微镜分析表明接种的蓝藻有效定植。Anabaena torulosa和Anabaena laxa与Pusa Aditya和Jaya表现最佳分别。与Jaya相比，Pusa Aditya对蓝藻培养的反应更好，就基于生化和生物特征分析的整体性能而言。接种剂、培养基和植物品种之间的三方相互作用显示出显着影响。这种改良的混合物可以作为一种选择被整合到花卉作物的苗圃管理实践中，以产生更健壮和健康的植物，同时减少化学品的用量。