{"title":"补充灌溉对埃塞俄比亚西部鹰嘴豆产量及产量性状的影响","authors":"Y. O. Kemal, G. A. Damot, Derejew Zewdie","doi":"10.4314/EJST.V11I2.2","DOIUrl":null,"url":null,"abstract":"Terminal moisture stress is one of the major factors that reduce the yield of chickpea when it is grown using residual moisture. Field experiment was conducted for two consecutive years (2015/16 and 2016/17) at Teda research site, northwestern Ethiopia to investigate the effect of Supplemental Irrigation (SI) on yield and yield attributes of chickpea ( Habru variety). The treatments comprised of six SI levels (no SI/rain-fed, SI at: 50% flowering, 50% pod setting; vegetative + 50% flowering, vegetative + 50% pod setting stages). The treatments were laid out in randomized complete block design with three replications. Data were analyzed using SAS software, and means were separated by least significant difference test. The result showed that the effect of SI on water use efficiency, yield and most yield components of chickpea such as weight of 100-seed, biomass yield, number of secondary branch, pods and seeds plant -1 was significant. SI generally decreased the water use efficiency of chickpea compared to rain-fed condition. Based on two-year result, SI twice at vegetative + pod setting produced maximum seed yield (30.02 q ha -1 ), which was at par with that of SI twice at vegetative+ flowering (29.30 q ha -1 ) and once at vegetative stages (29.17 q ha -1 ). SI once at vegetative, twice at vegetative + flowering and twice at vegetative + pod setting stages increased seed yield by 12, 17 and 19% in 2015; and by 35, 24 and 36 % in 2016, respectively, compared to rain-fed condition. SI once at vegetative stage provided maximum net benefit (45880.40 ETB ha -1 ), with a marginal rate of return (477%) greater than minimum acceptable level (100%). Moreover, it had the highest water use efficiency among SI treatments. Therefore, SI once at vegetative stage can be recommended as the best management option for chickpea production in the study area.","PeriodicalId":151905,"journal":{"name":"Ethiopian Journal of Science and Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Effects of supplemental irrigation on yield and yield attributes of chickpea (Cicer arietinum L.) in western Ethiopia\",\"authors\":\"Y. O. Kemal, G. A. Damot, Derejew Zewdie\",\"doi\":\"10.4314/EJST.V11I2.2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Terminal moisture stress is one of the major factors that reduce the yield of chickpea when it is grown using residual moisture. Field experiment was conducted for two consecutive years (2015/16 and 2016/17) at Teda research site, northwestern Ethiopia to investigate the effect of Supplemental Irrigation (SI) on yield and yield attributes of chickpea ( Habru variety). The treatments comprised of six SI levels (no SI/rain-fed, SI at: 50% flowering, 50% pod setting; vegetative + 50% flowering, vegetative + 50% pod setting stages). The treatments were laid out in randomized complete block design with three replications. Data were analyzed using SAS software, and means were separated by least significant difference test. The result showed that the effect of SI on water use efficiency, yield and most yield components of chickpea such as weight of 100-seed, biomass yield, number of secondary branch, pods and seeds plant -1 was significant. SI generally decreased the water use efficiency of chickpea compared to rain-fed condition. Based on two-year result, SI twice at vegetative + pod setting produced maximum seed yield (30.02 q ha -1 ), which was at par with that of SI twice at vegetative+ flowering (29.30 q ha -1 ) and once at vegetative stages (29.17 q ha -1 ). SI once at vegetative, twice at vegetative + flowering and twice at vegetative + pod setting stages increased seed yield by 12, 17 and 19% in 2015; and by 35, 24 and 36 % in 2016, respectively, compared to rain-fed condition. SI once at vegetative stage provided maximum net benefit (45880.40 ETB ha -1 ), with a marginal rate of return (477%) greater than minimum acceptable level (100%). Moreover, it had the highest water use efficiency among SI treatments. 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引用次数: 3
摘要
末端水分胁迫是影响鹰嘴豆残湿栽培产量的主要因素之一。在埃塞俄比亚西北部Teda研究基地连续两年(2015/16和2016/17)进行了田间试验,研究了补灌(SI)对鹰嘴豆(Habru品种)产量和产量属性的影响。处理包括6个SI水平(不SI/雨养,SI: 50%开花,50%结荚;营养+ 50%开花,营养+ 50%结荚期)。处理采用随机完全区组设计,3个重复。数据采用SAS软件分析,均数采用最小显著性差异检验分离。结果表明:SI对鹰嘴豆水分利用效率、产量及百粒重、生物量产量、二次枝数、荚果数、种子植株-1等产量构成因素影响显著;与雨养条件相比,SI普遍降低了鹰嘴豆的水分利用效率。2年的结果表明,营养+结荚期2次内插的种子产量最高(30.02 q ha -1),与营养+开花期2次内插(29.30 q ha -1)和营养期1次内插(29.17 q ha -1)的产量相当。在营养期、营养+开花期和营养+结荚期分别进行1次、2次和2次的单倍体改良,2015年的种子产量分别提高了12%、17%和19%;与雨养条件相比,2016年分别下降了35%、24%和36%。植物生长阶段的SI提供了最大的净效益(45880.40 ETB ha -1),边际收益率(477%)大于最低可接受水平(100%)。在SI处理中,其水分利用效率最高。因此,在研究区,营养阶段的SI可以作为鹰嘴豆生产的最佳管理选择。
Effects of supplemental irrigation on yield and yield attributes of chickpea (Cicer arietinum L.) in western Ethiopia
Terminal moisture stress is one of the major factors that reduce the yield of chickpea when it is grown using residual moisture. Field experiment was conducted for two consecutive years (2015/16 and 2016/17) at Teda research site, northwestern Ethiopia to investigate the effect of Supplemental Irrigation (SI) on yield and yield attributes of chickpea ( Habru variety). The treatments comprised of six SI levels (no SI/rain-fed, SI at: 50% flowering, 50% pod setting; vegetative + 50% flowering, vegetative + 50% pod setting stages). The treatments were laid out in randomized complete block design with three replications. Data were analyzed using SAS software, and means were separated by least significant difference test. The result showed that the effect of SI on water use efficiency, yield and most yield components of chickpea such as weight of 100-seed, biomass yield, number of secondary branch, pods and seeds plant -1 was significant. SI generally decreased the water use efficiency of chickpea compared to rain-fed condition. Based on two-year result, SI twice at vegetative + pod setting produced maximum seed yield (30.02 q ha -1 ), which was at par with that of SI twice at vegetative+ flowering (29.30 q ha -1 ) and once at vegetative stages (29.17 q ha -1 ). SI once at vegetative, twice at vegetative + flowering and twice at vegetative + pod setting stages increased seed yield by 12, 17 and 19% in 2015; and by 35, 24 and 36 % in 2016, respectively, compared to rain-fed condition. SI once at vegetative stage provided maximum net benefit (45880.40 ETB ha -1 ), with a marginal rate of return (477%) greater than minimum acceptable level (100%). Moreover, it had the highest water use efficiency among SI treatments. Therefore, SI once at vegetative stage can be recommended as the best management option for chickpea production in the study area.