杆菌和基尼:一个协同解决方案,提高玉米的干旱耐受性和种子质量
Rubaika Khurshid1, Shagufta Perveen1, Abid Niaz2
1Department of Botany, Government College University, Faisalabad, Pakistan.
概括
促进植物生长的草原细菌 (PGPR) 和素在干旱压力下提高了玉米的产量和营养质量. 这种组合减轻了压力影响,提高了作物弹性和粮食安全.
科学领域:
- 农业科学 农业科学
- 植物科学 植物科学
- 微生物学 微生物学
背景情况:
- 干旱压力对全球粮食安全构成重大威胁.
- 玉米 (Zea mays) 是一种易受水资源短缺影响的重要作物.
- 促进植物生长的草根细菌 (PGPR) 和植物生长调节剂 (PGR) 显示出减轻非生物压力的潜力.
研究的目的:
- 为了评估PGPRs (Cytobacillus firmus和Pseudomonas aeruginosa) 和kinetin在干旱条件下对玉米的联合作用.
- 评估对玉米生物化学特征,产量,营养含量和压力指标的影响.
主要方法:
- 在完全灌和50%干旱压力下进行了基于现场的试验.
- 玉米种子使用PGPR联盟进行了处理,并应用了kinetin的叶子喷雾.
- 进行了生物化学分析,产量特征测量,以及对宏观营养素,抗氧化剂,氧化物和二次代谢物的评估.
主要成果:
- PGPRs表现出和的溶解,产生ACC去胺酶,IAA和 siderophore.
- PGPR-kinetin组合显著减少了干旱压力影响,改善了产量和营养含量.
- 在用PGPRs和kinetin完全灌时,氧化物和二次代谢物得到了上调;像MDA和H2O2这样的压力指标减少了.
结论:
- 结合使用PGPRs和kinetin有效地减轻了玉米的干旱压力.
- 这一战略提高了玉米的产量,营养质量和耐压力,为容易遭受干旱的地区提供了可持续的解决方案.
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