Ignacio Darío Flores-Sánchez, M. Sandoval-Villa, E. Uscanga-Mortera
{"title":"原丘番茄种子破茧休眠的研究施用KNO3对乡绅种子的影响","authors":"Ignacio Darío Flores-Sánchez, M. Sandoval-Villa, E. Uscanga-Mortera","doi":"10.3390/crops2020008","DOIUrl":null,"url":null,"abstract":"Jaltomata procumbens (Cav.) J. L. Gentry presents seed dormancy mechanisms in its two populations, erect and decumbent, that make its germination and obtaining of plants difficult. Potassium nitrate (KNO3) is used as a seed germination promoter by soaking in an osmotic solution. The objective was to break the dormancy of Jaltomata seeds by evaluating KNO3. Treatments included: 2 populations (erect and decumbent), 2 soaking times (4 and 6 days) in 2 concentrations of KNO3 solution (0.1% and 0.2%) and in distilled water used as a control. Days of germination including starting (DGS) and ending (DGE), energy period (EP), germination energy (GE), germination percentage (GP) and rate (GR) were measured. The erect population presented a more uniform germination and a lower number of DGS and DGE as well as 100% germination with the highest GR (2.56 seeds day−1). No statistical differences were observed between KNO3 and control; however, the positive effect of the KNO3 and 4 days of soaking on the germinated seed was observed. The decumbent population exhibited a more variable germination; however, the same trend of the solution type and soaking days was observed, reaching 93.1 GP. Considering the economic and accessibility aspects of substances that promote germination on J. procumbens, distilled water imbibition and KNO3 are recommended to accelerate the germination process.","PeriodicalId":89376,"journal":{"name":"GM crops","volume":"31 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Breaking Seed Dormancy of Jaltomata procumbens (Cav.) J. L. Gentry Seeds with the Use of KNO3\",\"authors\":\"Ignacio Darío Flores-Sánchez, M. Sandoval-Villa, E. Uscanga-Mortera\",\"doi\":\"10.3390/crops2020008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Jaltomata procumbens (Cav.) J. L. Gentry presents seed dormancy mechanisms in its two populations, erect and decumbent, that make its germination and obtaining of plants difficult. Potassium nitrate (KNO3) is used as a seed germination promoter by soaking in an osmotic solution. The objective was to break the dormancy of Jaltomata seeds by evaluating KNO3. Treatments included: 2 populations (erect and decumbent), 2 soaking times (4 and 6 days) in 2 concentrations of KNO3 solution (0.1% and 0.2%) and in distilled water used as a control. Days of germination including starting (DGS) and ending (DGE), energy period (EP), germination energy (GE), germination percentage (GP) and rate (GR) were measured. The erect population presented a more uniform germination and a lower number of DGS and DGE as well as 100% germination with the highest GR (2.56 seeds day−1). No statistical differences were observed between KNO3 and control; however, the positive effect of the KNO3 and 4 days of soaking on the germinated seed was observed. The decumbent population exhibited a more variable germination; however, the same trend of the solution type and soaking days was observed, reaching 93.1 GP. Considering the economic and accessibility aspects of substances that promote germination on J. procumbens, distilled water imbibition and KNO3 are recommended to accelerate the germination process.\",\"PeriodicalId\":89376,\"journal\":{\"name\":\"GM crops\",\"volume\":\"31 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-04-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"GM crops\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/crops2020008\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"GM crops","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/crops2020008","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
墨西哥玉米(Cav.)J. L. Gentry在其直立和平卧两种居群中表现出种子休眠机制,使其萌发和获得植株困难。硝酸钾(KNO3)在渗透溶液中浸泡,作为种子萌发促进剂。目的是通过评估KNO3来打破Jaltomata种子的休眠。处理:2个种群(直立和平卧),在2种浓度的KNO3溶液(0.1%和0.2%)和对照蒸馏水中浸泡2次(4和6 d)。测定发芽期(DGS)和结束期(DGE)、能量期(EP)、萌发能(GE)、发芽率(GP)和发芽率(GR)。直立群体萌发较均匀,DGS和DGE数量较低,萌发率为100%,GR最高(2.56粒/ d−1)。KNO3与对照间无统计学差异;然而,KNO3和浸泡4 d对种子萌发有积极影响。平卧居群的萌发变化较大;溶液类型与浸泡时间的变化趋势相同,均达到93.1 GP。从经济和可及性两方面考虑,建议采用蒸馏水吸胀和KNO3来促进种子萌发。
Breaking Seed Dormancy of Jaltomata procumbens (Cav.) J. L. Gentry Seeds with the Use of KNO3
Jaltomata procumbens (Cav.) J. L. Gentry presents seed dormancy mechanisms in its two populations, erect and decumbent, that make its germination and obtaining of plants difficult. Potassium nitrate (KNO3) is used as a seed germination promoter by soaking in an osmotic solution. The objective was to break the dormancy of Jaltomata seeds by evaluating KNO3. Treatments included: 2 populations (erect and decumbent), 2 soaking times (4 and 6 days) in 2 concentrations of KNO3 solution (0.1% and 0.2%) and in distilled water used as a control. Days of germination including starting (DGS) and ending (DGE), energy period (EP), germination energy (GE), germination percentage (GP) and rate (GR) were measured. The erect population presented a more uniform germination and a lower number of DGS and DGE as well as 100% germination with the highest GR (2.56 seeds day−1). No statistical differences were observed between KNO3 and control; however, the positive effect of the KNO3 and 4 days of soaking on the germinated seed was observed. The decumbent population exhibited a more variable germination; however, the same trend of the solution type and soaking days was observed, reaching 93.1 GP. Considering the economic and accessibility aspects of substances that promote germination on J. procumbens, distilled water imbibition and KNO3 are recommended to accelerate the germination process.