And select 50 disease-free flowering branches, use tape measure and vernier caliper to measure the length of the branches, stem thickness, number of leaves, leaf length to width ratio and flower bud external morphology.
And selected 50 disease-free flowering branches, with a tape measure, cursor caliper to measure the length of branches, stem thick, the number of blades, leaf aspect ratio and bud external morphology and other characteristics indicators.
The length of branches, stem diameter, number of leaves, ratio of length to width of leaves and external morphology of flower buds were measured with tape measure and vernier caliper.<br>