The symbiotic relationship implies a signal exchange between the rhizobia and the legume that leads to the development of symbiotic structures.
The roots of the host legume plant secrete flavonoids, which are recognized by the Rhizobia. In response, the rhizobia secrete nod factors recognized by the plant, causing root hair deformation and cellular processes such as ion fluxes.
The rhizobia enter through the deformed root hair and form intracellular tubes called the infection thread. The infection triggers cell division in the root cortex where a new organ, the nodule, appears as a result of successive processes.
Infection threads grow to the nodule, infect its central tissue, and release the rhizobia in these cells, where they differentiate morphologically into bacteroids and fix nitrogen from the atmosphere into a plant-usable form, ammoniates, proteins, and sufficient oxygen so as not to interfere with the fixation process. Leghaemoglobin ions (NH4+) are used using the nitrogenous enzyme. In return, the plant supplies the bacteria with carbohydrates that are secreted, which are plant proteins similar to human hemoglobin that help to provide oxygen for respiration while keeping the free oxygen concentration low enough not to inhibit nitrogenous activity.
Suitable Crops:
Groundnut, Black gram, Green gram, Red gram, Cowpea, Bengal gram, Mustard, Soyabean, French bean, Cluster bean, Lab-Lab, Sesbania, and other legume crops.
Dosage and Method of Application :
Seed Treatment (Per Kg): Mix 10 ml of SUN BIO RHIZO in cold jaggery solution and apply evenly on the seed surface. Dry treated seed in shade before sowing and use on the same day.
Seedling Treatment: Mix 10 ml of SUN BIO RHIZO in 1 liter of water and dip seedling roots for 5-10 minutes before transplanting.
Soil Application (Per Acre): Mix 1 liter of SUN BIO RHIZO with 50-100 kg of well-decomposed manure or cake and apply evenly on moist soil.
Drenching: Mix 5-10 ml of SUN BIO RHIZO in 1 liter of water and apply near the root zone by drenching.
Fertigation (Per Acre): Mix 1-2 liters of SUN BIO RHIZO in water and apply in the root zone through the drip system.
