Growth and Development Pattern of'Sensation'Mango in Baise Area
In order to explore the fruit growth and development pattern of'Sensation'mango in Baise,the changes of fruit volume during its growth cycle were determined,which was to achieve the goals of proper use of fertilizers and pesticides combining with the growth status and nutritional requirements of fruit growth nodes.By constructing a linear regression estimation formula for fruit volume and using the estimation formula to correct non-in-vitro fruit volume,a regression equation for the growth and development of the'Sensation'mango fruit was established using mathematical methods based on the Logistic growth model.The results showed that the constructed volume estimation formula had a significant linear regression relationship and could estimate the volume of'Sensation'mango.The regression equations for the longitudinal diameter,transverse diameter and fruit volume of'Sensation'mango were all logistic single"S"curves.The maximum growth rates for transverse diameter,longitudinal diameter,and fruit volume were obtained on the 30th,26th and 47th days,respectively.Overall,the growth and development cycle of longitudinal diameter was 6 days shorter than that of transverse diameter,and the maximum growth rate of fruit volume was 20 days later than that of transverse diameter and longitudinal diameter.The corresponding starting point t1 and ending point t2 of the rapid growth period were delayed with a contraction and backward shift in the production rate function graph.The relevant results were applicable to the description of the dynamic changes in the growth of'Sensation'mango,and provided data basis for the research on high-yield and high-quality cultivation technology system of'Sensation'mango in Baise.
'Sensation'mangogrowth and developmentLogistic model