Two years of a field study on sesame growth and yield, nutrient uptake by PGP bacteria application and capsule type

Abstract

A two-year field experiment was conducted to study PGP bacteria on growth and yield productivity of sesame. Factors were control, Nitroxin, Biophosphor, and an equal combination of biofertilizers along with sesame capsule type. 1000-seed weight and oil content increased in the second year, but, seed yield reduced (-12.6 g m²), which represented a negative relationship between seed weight and yield. The effect of year on No. of single and multi-cap node plant⁻¹ was reversed. Seed yield, chlorophyll, protein, and N increased in the multi-cap seed, whereas, 1000-seed weight and seed weight plant⁻¹ was decreased. Maximum yield and yield components were achieved in the second and first year, respectively, along with the multi-cap seed. Nitroxin, after the equal combination, was approximately showed the maximum enhancement of growth and yield productivity of sesame. The most seed yield (4261 k ha⁻¹) was performed in the first year, combined biofertilizers and multi-cap seed, whereas, the highest oil content was gained in the second year and single-cap that it was due to the higher N and P use efficiency in the first year. No. of node plant⁻¹ and capsule No. plant⁻¹ showed the most correlation with the other parameters. Seed yield was correlated with No. of node plant⁻¹ (r = 0.925) and leaf dry weight (r = 0.885). The N and P use efficiency had been higher in the first year, multi-cap, and equal combination. Nitrogen Use efficiency was higher compared to phosphorous. The uptake of N and P by sesame increased with the integrated application of different bacteria.

Keywords:

• Bio-fertilizer efficiency
• Nitrogen-fixing bacteria
• Phosphate-solubilizing bacteria
• Sesame
• Yield productivity

Disclosure statement

No conflict of interest was reported by the authors.

Notes

1 www.mabco.asia, Email: [email protected]

2 Pure net water requirement for sesame seeds was estimated by Netwat software (Alizadeh and Kamali 2007) about 7361 m³ ha^-1, which was given to the plants every eight days (Mokhtari et al.2013).

3 1 feddan = 24 kirat = 60 metre × 70 metre = 4200 square metres (m²) = 0.420 hectares = 1.037 acres