The invention relates to a
solanaceae vegetable lateral
branch functional
mutagenesis culturing method. The method comprises the steps that a
plant field is selected, high and low ridges are formed,
solanaceae vegetables are planted on the high and low ridges, when the
solanaceae vegetables grow to the height of 60-100 cm, robust lateral branches which are closer to the ground are selected, one ormore weighed down
vine parts are selected from the lateral branches, the weighed down
vine parts are buried in soil or a substrate on the high ridges, thorough watering is conducted after tamping isconducted, management is conducted according to a solanaceae vegetable conventional field management manner, the lateral branches on the side close to the ground are induced to root, apical buds of the lateral branches are removed after adventitious roots grow from the lateral branches, and therefore the lateral branches are changed into nutritious auxiliary roots. The method has the advantages that useless lateral branches of the solanaceae vegetables can be ingeniously utilized to be changed into the nutritious auxiliary roots to form a principal-auxiliary
root system together with a principal root, different culturing manners can be adopted by two root systems,
nutrient absorbing is more comprehensive, and the
normal growth of the solanaceae vegetables are not influenced even if any ofroot systems diseased.