2种微生物菌肥对油茶幼苗生长及光合特性的影响OA
Effects of two types of microbial fertilizers on growth of Camellia oleifera seedlings and the influence of photosynthetic characteristics
[目的]探究2种微生物菌肥对油茶幼苗生长及光合特性的影响,为油茶养分管理提供参考.[方法]以1 年生'长林 40 号'油茶幼苗为材料,通过测定施加2 种微生物菌肥后油茶的生长指标、气体交换参数、叶绿素荧光参数及抗氧化酶活性等指标,结合主成分与隶属函数分析,综合评价不同处理效果并筛选最优菌肥及施用量.[结果]施用微生物菌肥显著促进了油茶的生长和光合特性,与对照组(CK)相比,A4 和L2 处理组使株高分别提高71.74%和67.94%;A2和L2处理组使地径分别提高60.00%和45.40%.叶绿素与类胡萝卜素含量在A3 和L3 处理下显著增加,其中叶绿素a、叶绿素b、总叶绿素及类胡萝卜素增幅分别为 147.64%、90.62%、122.08%、213.43%和 130.27%、121.03%、126.85%、280.07%.A2 处理的净光合速率(Pn)较对照组(CK)和氮肥处理(N)分别提高 93.03%和 66.66%.A2 处理叶片的qP、ETR较CK分别高 31.03%、35.95%,较N处理组分别高 46.15%、33.75%.此外,A4 和L2 处理组的超氧化物歧化酶(SOD)活性显著高于CK和N处理组,增幅分别为 24.69%、28.57%和 51.82%、56.54%,同时增强了过氧化物酶(POD)和过氧化氢酶(CAT)活性.主成分分析与隶属函数综合评价结果表明,A2 处理下油茶的生长、光合特性及抗氧化酶活性表现最佳.[结论]微生物菌肥与兰迪多邦显著促进了油茶植株生长,通过提高叶片叶绿素含量、气体交换参数、叶绿素荧光参数增强抗氧化酶活性,有效增强了植株光合作用,可为油茶高效栽培提供有力支撑.
[Objective]To investigate the effects of two microbial fertilizers on the growth and photosynthetic characteristics of Camellia oleifera seedlings,and to provide some practical references and theoretical support for the nutrient management of Camellia oleifera.[Method]The growth indexes,gas exchange parameters,chlorophyll fluorescence parameters and antioxidant enzyme activities of Camellia oleifera seedlings were measured after applying two kinds of microbial fertilizers,and combined with the principal component and subordinate function analysis to comprehensively evaluate the effects of different treatments and screen the optimal fertilizers and application rates.[Result]The application of microbial fertilizer significantly promoted the growth and photosynthetic characteristics of Camellia oleifera.Compared with the control group(CK),A4 and L2 treatments increased plant height by 71.74％and 67.94％,respectively;A2 and L2 treatments increased ground diameter by 60.00％and 45.40％,respectively.Chlorophyll and carotenoid contents were significantly increased by A3 and L3 treatments,where the increase in chlorophyll a,chlorophyll b,total chlorophyll and carotenoids were 147.64％,90.62％,122.08％,213.43％and 130.27％,121.03％,126.85％and 280.07％,respectively.The A2 treatment increased the net photosynthetic rate(Pn)compared to the 93.03％and 66.66％in the control(CK)and nitrogen fertilizer treatment(N),respectively.qP and ETR of A2-treated leaves were 31.03％and 35.95％higher than that of CK,and 46.15％and 33.75％higher than that of N group,respectively.In addition,superoxide dismutase(SOD)activities of A4 and L2 treatments were significantly higher than CK and N by 24.69％,28.57％and 51.82％,56.54％,respectively,while peroxidase(POD)and catalase(CAT)activities were enhanced.The comprehensive evaluation of principal component analysis and affiliation function indicated that the growth,photosynthetic characteristics and antioxidant enzyme activities of Camellia oleifera performed best under A2 treatment.[Conclusion]The microbial fertilizer and Randidobond significantly promoted the growth of Camellia oleifera seedlings,and enhanced the antioxidant enzyme activities by increasing the chlorophyll content,gas exchange parameters,chlorophyll fluorescence parameters of the leaves,effectively enhanced the photosynthesis of the plants,and provided a strong support for the high-efficiency cultivation of Camellia oleifera.
谢代玉;李锐;向大燕;殷艾馨;舒燕;陈涛;冯士令;丁春邦;周莉君
四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014四川农业大学 生命科学学院,四川 雅安 625014
农业科技
油茶幼苗菌肥生长发育光合特性
Camellia oleifera seedlingsmicrobial fertilizergrowth and developmentphotosynthetic characteristics
《中南林业科技大学学报》 2026 (6)
70-79,10
四川省科技计划项目(2024ZHCG0100)四川省教育发展中心课题(CJF23012)雅安市校合作项目(23CGZH0005).
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