Enhancing wheat growth and nutrient content through integrated microbial and non-microbial biostimulants.

IF 5.4 2区 生物学 Q1 PLANT SCIENCES
Devashish Pathak, Archna Suman, Anchal Dass, Pushpendra Sharma, Aswini Krishnan, Shrikant Gond
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Abstract

This study focused on two aspects: to develop a selected functionally competent bacterial community, and its integrated with biostimulant humic acid and seaweed extract which was validated to enhance wheat growth and nutrient content. Wheat and maize-associated bacterial isolates (92) were screened for Plant Growth-Promoting traits (PGPts-72) and Community-Forming traits (CFts-66). 46 isolates possessed both kinds of traits, of which 20 isolates were chosen based on high Bonitur scale ratings. Based on metabolic diversity, growth rate, and compatibility, 11 isolates were grouped to make a synthetic microbial community (SM). Non-microbial biostimulants, humic acid (HA) and seaweed extract (SWE) were used, and 0.2% HA and 1% SWE were found to be optimal for bacterial and plant growth. SM integrated each with 0.2% HA and 1% SWE, leading to products SynBio1 (SM + HA) and SynBio2 (SM + SWE). Under microcosm study, SynBio1 and SynBio2 improved germination by 90.10% and 83.80%, respectively. SynBio1 increased chlorophyll content by 40.5 SPAD units, root length by 15.7%, and shoot length by 18.4%. Field level validations revealed that SynBio1 increased plant height by 15.76%, root length by 27.16%, and flag leaf length by 21.35% compared to the control. The grain yield with SynBio1 was 40.41% higher than that of the control. Macro and micronutrient analysis of seeds treated with SynBio1 showed significant improvements. These findings demonstrate the potential of integrating microbial communities with biostimulants, and they pave the way for developing novel bioinoculants for sustainable agriculture and promoting a healthier environment.

通过综合微生物和非微生物生物刺激剂提高小麦生长和养分含量。
这项研究的重点有两个方面:开发精选的功能强大的细菌群落,并将其与生物刺激剂腐植酸和海藻提取物相结合,以提高小麦的生长和养分含量。对小麦和玉米相关细菌分离株(92 株)进行了植物生长促进性状(PGPts-72)和群落形成性状(CFts-66)筛选。46 个分离菌株同时具有这两种性状,其中 20 个分离菌株因博尼图尔量表评分较高而被选中。根据代谢多样性、生长速度和兼容性,将 11 个分离物分组,组成合成微生物群落(SM)。使用了非微生物生物刺激剂、腐植酸(HA)和海藻提取物(SWE),发现 0.2% 的腐植酸和 1% 的海藻提取物对细菌和植物的生长最为有利。SM 与 0.2% 的 HA 和 1% 的 SWE 相结合,产生了 SynBio1(SM + HA)和 SynBio2(SM + SWE)产品。在微生态研究中,SynBio1 和 SynBio2 分别提高了发芽率 90.10% 和 83.80%。SynBio1 的叶绿素含量增加了 40.5 SPAD 单位,根长增加了 15.7%,芽长增加了 18.4%。田间试验表明,与对照相比,SynBio1 增加了 15.76%的株高、27.16%的根长和 21.35%的旗叶长。使用 SynBio1 的谷物产量比对照高出 40.41%。用 SynBio1 处理过的种子的宏量和微量营养元素分析表明有显著改善。这些研究结果证明了微生物群落与生物刺激剂结合的潜力,并为开发新型生物筑基剂以促进可持续农业和更健康的环境铺平了道路。
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来源期刊
Physiologia plantarum
Physiologia plantarum 生物-植物科学
CiteScore
11.00
自引率
3.10%
发文量
224
审稿时长
3.9 months
期刊介绍: Physiologia Plantarum is an international journal committed to publishing the best full-length original research papers that advance our understanding of primary mechanisms of plant development, growth and productivity as well as plant interactions with the biotic and abiotic environment. All organisational levels of experimental plant biology – from molecular and cell biology, biochemistry and biophysics to ecophysiology and global change biology – fall within the scope of the journal. The content is distributed between 5 main subject areas supervised by Subject Editors specialised in the respective domain: (1) biochemistry and metabolism, (2) ecophysiology, stress and adaptation, (3) uptake, transport and assimilation, (4) development, growth and differentiation, (5) photobiology and photosynthesis.
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