关键词: 白灵菇, 白灵菇, 铜, 胁迫, 抗氧化系统

Abstract: In order to provide some technical references for the cultivation of the combinations derived from ‘Fulong S2’ and breeding technologies of the series of new type rice varieties, aging characteristics of the 4 combinations derived from ‘Fulong S2’ and ‘Liangyoupeijiu’ (CK) were studied at late growth stage in this page. The coefficient of leaf area, chlorophyll content, soluble protein content, total SOD activity, MDA content and the yield per 100 plants of the 5 combinations were measured in the late growth duration, further, the relationships between the yield per 100 plants and other 5 physiologic and biochemical indices were analyzed. The yield per 100 plants and MDA content of the 5 combinations were gradually rising, while the coefficient of leaf area, chlorophyll content, soluble protein content and total SOD activity were gradually decreased. All physiologic and biochemical indices show that ‘Fulongliangyou1936’ and ’Fulongliangyou3389’ were more antisenescence CK.‘Fulongliangyou3381’ and ’Fulongliangyou1031’ all show that their coefficient of leaf area, chlorophyll content and total SOD activity were lower than CK, while the yield per 100 plants ,soluble protein content and MDA content were higher than CK. The 5 combinations all show that the correlation between soluble protein content and the yield per 100 plants was significant, and the MDA content was the same as soluble protein content. The antisenescence performances of the 4 combinations derived from ‘Fulong S2’ were different from CK in the late growth duration, while the yield increase were all stronger than CK .The soluble protein content and MDA content can be used to forecast yield potential of the 4 combinations indirectly. Farmers would get the best unit yield and economic benefits, if they harvest the products after head sprouting time 50 days.