现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2012年
4期
57-59,61
,共4页
周美利%程然然%范海%王宝山
週美利%程然然%範海%王寶山
주미리%정연연%범해%왕보산
甜高粱%盐胁迫%萌发%幼苗期
甜高粱%鹽脅迫%萌髮%幼苗期
첨고량%염협박%맹발%유묘기
sweet sorghum%salt stress%germination%seedling period
选用绿能1号等7个不同品种(系)甜高粱作为材料,分别采用不同浓度NaCl溶液对其种子和幼苗进行盐胁迫处理,研究其萌发期和幼苗期的耐盐性,以选育出能够在盐碱地上种植的耐盐甜高粱品种。结果表明:不同甜高粱品种(系)萌发期和幼苗期对盐分的敏感性不同,不同品种(系)间的耐盐性存在差异。随着NaCl浓度的增加,发芽势、发芽率及发芽指数均随之降低。幼苗期生物量也与盐浓度呈负相关。综合萌发期及幼苗期耐盐指标,JZ10及JZ1耐盐性较强,绿能1号耐盐性最弱。
選用綠能1號等7箇不同品種(繫)甜高粱作為材料,分彆採用不同濃度NaCl溶液對其種子和幼苗進行鹽脅迫處理,研究其萌髮期和幼苗期的耐鹽性,以選育齣能夠在鹽堿地上種植的耐鹽甜高粱品種。結果錶明:不同甜高粱品種(繫)萌髮期和幼苗期對鹽分的敏感性不同,不同品種(繫)間的耐鹽性存在差異。隨著NaCl濃度的增加,髮芽勢、髮芽率及髮芽指數均隨之降低。幼苗期生物量也與鹽濃度呈負相關。綜閤萌髮期及幼苗期耐鹽指標,JZ10及JZ1耐鹽性較彊,綠能1號耐鹽性最弱。
선용록능1호등7개불동품충(계)첨고량작위재료,분별채용불동농도NaCl용액대기충자화유묘진행염협박처리,연구기맹발기화유묘기적내염성,이선육출능구재염감지상충식적내염첨고량품충。결과표명:불동첨고량품충(계)맹발기화유묘기대염분적민감성불동,불동품충(계)간적내염성존재차이。수착NaCl농도적증가,발아세、발아솔급발아지수균수지강저。유묘기생물량야여염농도정부상관。종합맹발기급유묘기내염지표,JZ10급JZ1내염성교강,록능1호내염성최약。
Seven different cultivars or strains of sweet sorghum were treated with different concentrations of NaCl solution during germination or seedling growth period,in order to screen salt-tolerant cultivars to be planted in saline-alkali soil.The results showed that the sensitivity to salinity differed in germination and seedling period in different cultivars.With the increasing of NaCl concentrations,the germination potential,germination percentage and germination index all decreased.Seedling biomass was negatively correlated with salt concentrations.Taking the salt tolerance indexes of germination and seedling into account,JZ10 and JZ1 showed the strongest salt tolerance,while Lvneng-I was the poorest in salinity tolerance.