The Combined Effects of Gibberellic Acid and Rhizobium on Growth, Yield and Nutritional Status in Chickpea (Cicer arietinum L.)

Agronomy

HayssamM. Ali¹  ManzerH. Siddiqui¹  MohamedZ. M. Salem²  Muhammad Naveed³  Adnan Mustafa⁴  Sadia Kaukab⁵  Saleem Akhtar⁶  Munazza Rafique⁶  Muneeb Munawar⁷ 

[1] Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;Forestry and Wood Technology Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt;Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Pulses Research Institute, AARI, Faisalabad 38000, Pakistan;Soil Bacteriology Section, Agricultural Biotechnology Research Institute, AARI, Faisalabad 38000, Pakistan;Vegetable Research Institute, AARI, Faisalabad 38000, Pakistan;

关键词: nutritional quality;    nodulation;    PGRs;    Rhizobium;    crop production;    chickpea;   

DOI  :  10.3390/agronomy11010105

来源: DOAJ

【 摘 要 】

Plant growth regulators and Rhizobium are actively involved in the regulation of flowering, pod formation, nodulation, and ultimately the growth and yield of legumes. However, very limited information is available on the combined effect of gibberellic acid (GA₃) and Rhizobium on growth attributes and yield of legume crops. This experiment was designed to fill this gap by studying the performance of chickpea under exogenous application of GA₃ (10⁻⁴ and 10⁻⁵ M) alone and in combination with Rhizobium. Exogenous application of GA₃ (10⁻⁵ M) combined with rhizobium inoculation gave the highest values for number of nodules per plant (16) and their dry biomass (0.22 g). Moreover, GA₃ application and seed inoculation with Rhizobium, when applied singly, significantly enhanced chickpea growth. However, the most promising results were obtained by the inoculation of Rhizobium accompanied with GA₃ (10⁻⁵ M). Plant height, grain and stover yield, and chlorophyll contents were enhanced up to 35%, 39%, 21%, and 51%, respectively. Likewise, the bioaccumulation of macronutrients (N, P and K) was maximum in plants receiving both Rhizobium inoculation and GA₃ application. It is concluded that the combined application of Rhizobium and GA₃ has synergistic effects on the growth, yield, and nutrient contents of chickpea.

【 授权许可】

Unknown