enhances nutrient uptake and forage quality in bermudagrass by increasing phosphorus and potassium availability.

INTRODUCTION

Potassium and phosphorus are essential macronutrients for plant growth and development. However, most P and K exist in insoluble forms, which are difficult for plants to directly absorb and utilize, thereby resulting in growth retardation of plants under P or K deficiency stress. The fungus has growth-promoting characteristics and the ability to dissolve P and K.

METHODS

Here, to investigate the physiological effects of on bermudagrass under P or K deficiency, and bermudagrass were used as experimental materials.

RESULTS AND DISCUSSION

The results showed that could promote tolerance to P or K deficiency stress in bermudagrass, decrease the rate of leaf death, and increase the contents of crude fat as well as crude protein. In addition, significantly enhanced the chlorophyll a+b and carotenoid contents. Moreover, under P or K deficiency stress, bermudagrass inoculated with showed higher N, P, and K contents than non-inoculated plants. Furthermore, exogenous markedly decreased the HO level and CAT and POD activities. Based on our results, could effectively improve the forage quality of bermudagrass and alleviate the negative effects of P or K deficiency stress, thereby playing a positive economic role in the forage industry.