腐植酸改性培养基与IBA对无花果生长和繁殖能力的互作响应茎岩屑

M. Nadeem, K. Waseem, M. S. Khan, S. Fatima, I. Khan, D. Muhammad, Şahane Funda Arslanoglu, S. A. Khan
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引用次数: 0

摘要

本研究评估了腐植酸(HA)改性生长介质(GM)和吲哚丁酸(IBA)对无花果(Ficus carica L., var Black Mission)茎插条生长和繁殖能力的一系列参数的交互作用。采用不同浓度的IBA(0,500, 1000和1500 mg/L)处理扦插,在9个GM中进行繁殖,该GM由砂壤土和粘土组成,分别添加4种HA (0, 2.5, 5.0, 7.5 g/m2)和砂壤土和粘土的混合物(1:1 v/v),不添加HA。在IBA浓度不同的情况下,包括植物存活率(PS)在内的大部分参数的转基因排序都发生了变化,表明GMxIBA具有显著的互作作用。在HA水平较低(2.5 ~ 5.0 g/m2)的情况下,随着IBA浓度(500 ~ 1000 mg/L)的增加,水稻植株的光合速率也随之增加,但以砂壤土为基质的水稻植株的光合速率相对较好。根冠比(R/S)和植株氮素吸收(NUP)解释了植株成活率(PS)的大部分变异(R2= 99.8%),是无花果扦插繁殖成活率的关键决定因素。关键性状之间存在很强的相互关系,从而产生复杂的权衡,影响无花果茎扦插的整体繁殖能力。我们的方法可以用于制定间接选择标准,确定通过茎扦插繁殖的成功率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing Interactive Response of Humic Acid Amended Media and IBA on the Growth and Propagative Capacity of Fig (Ficus carica L.) Stem Cuttings
This study assessed the interactive effects of humic acid (HA) amended growing media (GM) and indole butyric acid (IBA) on a range of parameters determining growth and propagative capacity of Fig (Ficus carica L., var Black Mission) stem cuttings. Cuttings were treated varying IBA concentration (0, 500, 1000 and 1500 mg/L) and propagated in nine GM consisted of sandy loam and clay soils amended with four levels of HA (0, 2.5, 5.0, 7.5 g/m2) and a mixture of sandy loam and clay soils (1:1 v/v) without HA. Ranking of GM changed across IBA concentrations for the majority of parameters, including plant survivability (PS) indicated significant GMxIBA interaction. PS increased with rising IBA concentration (500-1000 mg/L) under lower levels of HA (2.5-5.0 g/m2) across GM. However, the relative response was better in sandy loam based GM. Based on stepwise multiple linear regression, seven parameters viz., percent bud sprout (PBS), shoot length (SL), shoot diameter (SD), leaf area (LA), leaf chlorophyll content (LCC), root to shoot ratio (R/S) and plant N uptake (NUP) explained most of the variance (R2= 99.8%) in plant survival (PS) and acted as the critical determinants of survivability in Fig propagation via stem cuttings. Strong inter relationships existed among the critical traits, thus creating complex trade-offs affecting the overall propagative capacity of Fig stem cuttings. Our approach could be useful in developing indirect selection criterion determining success rates in propagation via stem cuttings.  
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