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Effect of Spraying with Different Concentrations of Arginine and Tryptophan on the Growth and Yield of Genotypes of Hibiscus sabdarriffa L | ||
| Journal of Medicinal and Industrial Plant Sciences | ||
| Volume 1, Issue 1, December 2023, Pages 1-18 PDF (590.97 K) | ||
| Document Type: Original Article | ||
| DOI: 10.32894/MEDIP.23.1.1 | ||
| Authors | ||
| Mohammed Ali Mahmood Al-jumaili* ; Akeel Nagime ALmohammedi | ||
| Field Crops Department, College of Agriculture, Tikrit University, Iraq | ||
| Abstract | ||
| During the summer season of 2022, a field experiment was conducted to investigate the impact of different cultivars, Arib, Black Heat, Red Heat, and Sudan 3, and spraying arginine tryptophan concentrations ,control, arginine 50 mg L-1, Tryptophan 50 mg L-1, and arginine 50 mg L-1 + tryptophan 50 mg L-1, in growth and yield of some genotypes of Roselle Jamaica. The statistical analysis of the data revealed notable distinctions across all examined traits. During the analysis, the genotype demonstrated superiority over Black Heat in the majority of studied traits, encompassing various growth characteristics. The evaluated yield and its components encompassed plant height, branches no., leaf area, chlorophyll a&b, nuts no. per plant, seeds no. per nut, 1000 seeds weight, yield, and yield of dry sepals. The combination of arginine 50 mg L-1 + tryptophan 50 mg L-1 was significantly superior in each plant height to reach 142.23 cm plant-1, branches no. per plant (29.10 branches plant-1), leaf area (58.21 cm2), chlorophyll a&b (32.93 mg gm -1), nuts no. per plant (150.20 nuts -1), walnut seeds no. (25.00 nut-1), 1000 seeds weight (54.84 g), yield (963.91 tons H-1), and the yield of dry sepal leaves (839.42 tons H-1). Also, the intersections of Heet resulted in the highest values for all examined traits, including vegetative growth, chlorophyll, and yield characteristics, when combined the arginine (50 mg L-1) & tryptophan (50 mg L-1). However, there were no notable differences in the weight of one thousand grains among cultivars when treated with the combination of arginine (50 mg L-1) & tryptophan (50 mg L-1). | ||
| Keywords | ||
| kumquat plant; genotypes; arginine and tryptophan; growth and yield | ||
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