79中国果树,2023(3):79-84本文于2022-05-08收到,2023-01-07收到修改稿。*广西创新驱动发展专项(桂科AA17204046-4、桂科AA18118046-7)。卢万义电话:15084971973,E-mail:2939398824@qq.com;韦杰为通信作者,E-mail:66291532@qq.com。DOI:10.16626/j.cnki.issn1000-8047.2023.03.015不同基质配比对沃柑大苗生长、生理及光合特性的影响*卢万义,覃创羿,鲁宗翰,王晓南,韦杰(广西大学农学院,南宁530004)摘要以1年生沃柑大苗(香橙砧木)为试验材料,对其进行假植育苗,以蚯蚓粪、椰糠、蛭石为材料配制成不同的基质组合,并以泥炭∶蛭石=4∶2为对照,研究不同基质配比对沃柑大苗生长、生理及光合特性的影响。结果表明:不同基质配比的沃柑大苗在生长、生理和光合特性等方面均存在显著性差异,其中T2处理(蚯蚓粪∶椰糠∶蛭石=2∶3∶1)综合表现最好,其苗高、地径、高径比、苗木总干重、苗木质量指数、可溶性糖含量、可溶性蛋白含量均最高,分别为120.2cm、15.98mm、75.2、477.20g、50.41、13.79%、17.83mg/g,叶片叶绿素相对含量较高,光合性能也较好;其次为T1处理(蚯蚓粪∶椰糠∶蛭石=1∶4∶1);表现最差的为T6处理(蚯蚓粪∶蛭石=4∶2)。综合沃柑大苗各项指标,蚯蚓粪∶椰糠∶蛭石=2∶3∶1的基质配比最适合沃柑大苗的生长,蚯蚓粪、椰糠可以替代泥炭作为沃柑大苗假植育苗基质。关键词沃柑大苗;基质;生长生理;光合特性中图分类号:S666.1文献标志码:A文章编号:1000-8047(2023)03-0079-06Effectsofdifferentmatrixratioongrowthphysiologyandphotosyntheticcharacteristicsof‘Orah’sseedlingsLUWanyi,QINChuangyi,LUZonghan,WANGXiaonan,WEIJie(AgricultureCollegeofGuangxiUniversity,Nanning530004)AAbstractThe1-year-oldseedlingsof‘Orah’seedling(citrusrootstock)wereusedastheexperimentalmaterialstocarryoutthepreplantingandseedlingcultivation.Differentmatrixcombinationswerepreparedwithearthwormdung,coconutbranandvermiculiteasthematerials,andpeat∶vermiculite=4∶2asthecontrol.Theeffectsofdifferentmatrixratiosonthegrowth,physiologyandphotosyntheticcharacteristicsoftheseedlingsof‘Orah’werestudied.Theresultsshowedthatthereweresignificantdifferencesingrowth,physiologyandphotosyntheticcharacteristicsofthelargeseedlingsof‘Orah’withdifferentsubstrateratios.Amongthe...