Effects of Different Substrates on Growth and Physiological Characteristics of Rhizophora stylosa Seedlings
This study aims to select the suitable substrate for the growth of Rhizophora stylosa seedlings,improve the cultivation efficiency and environmental adaptability.In this study,four different substrate ratios of sand,sand:mud(7:3),sand:mud(3:7),and mud were set up to determine the growth indexes,biomass,root morphological indexes and physiological indexes of Rhizophora stylosa seedlings under different substrate ratios.The results showed that the seedlings treated with sand:mud(7:3)had higher growth indexes,root indexes,biomass,photosynthetic pigment content and active oxygen scavenging ability,which was conducive to growth and development.With the increase of mud proportion,all the growth physiological indexes of the Rhizophora stylosa seedlings decreased.The nutrient content of sand is lower than that of mud,so it is necessary to pay close attention to the nutrient requirement and supplement nutrient input in time.The composite scores of principal components showed that sand:mud(7:3)was the best seedling medium for Rhizophora stylosa.
Rhizophora stylosasubstrategrowroot morphologyphysiological index
NETL
NSTL
万方数据
