Safety growth Biostimulant to improve Vegetative Growth,Tuber Productivity and Fixed Oil Content of Tiger Nut (Cyperus esculentus L.) Plant. | ||
| Annals of Agricultural Science, Moshtohor | ||
| Volume 63, Issue 2, June 2025, Pages 69-88 PDF (1.03 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/assjm.2025.385513.1362 | ||
| Author | ||
| Asmaa K. Eltohami* | ||
| Hort. Dept., Fac. Agric., Moshtohor, Benha University, Egypt | ||
| Abstract | ||
| Tiger nut (cyperus esculentus L ) is an underutilized crop belongs to family Cyperaceae , A field experiment was performed during two successive summer seasons of 2022 and2023 to explore the effect of applying sea weed (Ascophyllum nodosum)extract at (0,2,3.4 or 4g/L‑1 )as soil drench or foliar spray at (0,1,2 g/L‑1) and /or Chitosan soil drenched and sprayed both at (2cm/L‑1) Humic acid as foliar spray at (2g /L‑1 ) and soil drenched at (4g/L‑1) or Glutamic acid foliar spray at (1 and 2g/L‑1 )on tiger nut tubers , its fixed oil yields and constituents. Results showed that both methods of application sea weed extract positively influenced growth and tuber productivity ,soil drench of seaweed extract at 4g/L‑1 followed by 3g/L‑1 showed an increases in,fresh , dry weights / plant, tuber, fixed oil yields / plant and feddan whereas the foliar application of sea weed by both rates 2g/L‑1 followed by 1g/L‑1 caused more promising effect than drenching application. The combined of both methods of application 4g/L‑1 and2g/L‑1 followed by 3g/L‑1 and 2g/L‑1 significantly ameliorated these impacts as they induced the highest values of vegetative growth traits, tuber and fixed oil yields / plant or feddan . The highest values of the main oil component of unsaturated fatty acids, flavonoids ,flavonoid glucoside , terpenoids and aromatic acids. Apply sea weed (Ascophyllum nodosum) extract as soil drench at 4g/L‑1 and or 3g/L‑1 with foliar sprayed sea weed 2g/L‑1 is recommended to improve tiger nut tubers, and their fixed oil productivity. | ||
| Keywords | ||
| cyperus esculantus; some biostimulants; vegetative growth; tuber and chemical constituents | ||
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