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以芦苇凋落物为试材,采用溶液浸提法和厌氧腐解法,获得水提物和腐解产物两种浸提物母液;在5‰和10‰盐浓度下以两种浸提物母液和25%母液分别处理互花米草种子、刚萌发的幼苗以及互花米草滩涂中特有的互花米草益生菌,考察盐度变化对互花米草种子的萌发、幼苗生长以及菌落生长的影响.结果表明:盐处理能够显著促进互花米草种子的萌发、幼根以及互花米草益生菌的生长(P<0.05).较高的盐浓度(10‰)下,芦苇水提物对互花米草的萌发、生长和互花米草益生菌的生长呈促进作用;当盐浓度降低至5‰时,该促进作用消失.在较低的盐浓度(5‰)下,芦苇腐解产物对互花米草萌发产生显著的抑制作用;在较高盐浓度(10‰)时,则对互花米草益生菌产生显著促进作用(P<0.05);在试验的任一盐浓度下,芦苇腐解产物对互花米草幼苗和幼根的生长均存在显著的抑制效果(P<0.05).
Reed litter was used as test material, and two kinds of extracts of water extracts and decomposed products were obtained by solution extraction and anaerobic decoction. Two kinds of extracts were obtained under the conditions of 5 ‰ and 10 ‰ salt concentration And 25% of the mother liquor were treated Spartina alterniflora seed, newly germinated seedlings and Spartina alterniflora special fungi, to investigate the effect of salinity on Spartina alterniflora seed germination, seedling growth and colony growth The results showed that salt treatment could significantly promote the germination of Spartina alterniflora seedlings, the growth of young roots and Spartina alterniflora (P <0.05) .When higher salt concentration (10 ‰) Which promoted the germination and growth of Spartina alterniflora and the growth of Spartina alterniflora, and disappeared when the salt concentration was reduced to 5 ‰. At lower salt concentration (5 ‰) Decomposition products had a significant inhibitory effect on Spartina alterniflora germination; at the higher salt concentration (10 ‰), Sliver was promoted significantly (P <0.05) Concentration, the decomposed products of reed had significant inhibitory effect on the growth of Spartina alterniflora seedlings and young roots (P <0.05).