论文部分内容阅读
采用了四个二棱大麦(Hordeum vulgare Linn)品种三个和六棱大麦品种进行双列杂交以确定产量和制麦芽品质间的相关性.收集整理了单株籽粒产量,单株穗数,每穗粒数,百粒量,籽粒含氮量和水份含量的数据.观察到棱型对这些特性的相关有着强烈影响.在二棱和六棱亲本中,单株籽粒产量和单株穗数呈正相关.产量构成成分间呈负相关.虽然麦芽的各项品质间呈负相关,但粒重和含氮量有着正相关.籽粒产量与麦芽品质的任何属性都没有很强的相关性.在二梭亲本中,单株穗数和每穗粒数对籽粒产量影响显著.尽管其它的产量构成成分相互间呈负相关,单株穗数和粒重仍呈正相关.观察到籽粒产量和籽粒含氮量间呈负相关,在粒重和籽粒水分含量间也呈负相关.籽粒产量是由单株穗数,每穗粒数和平均粒重产生出来的,麦芽的各种品质相互间却不以这种同样的方式反应出来(Donald, 1962; Grafius and OKoli, 1974).产量构成成分与籽粒产量通常呈正相关(Asana et. al, 1955; sikka and Jain, 1958; Sidwell et al, 1976).但是,产量构成成分相互之间通常呈负相关(Rasmusson and cannell, 1970; Mcneal et al, 1978).最重要的麦芽品质是低的籽粒含氮量和水分含量,高的发芽率,平均粒重和出粉系数.籽粒产量和麦芽品质要一起改良是不容易的.在籽粒产量和含氮量之间存在着负相关(Hartog and Lambert, 1953; Bell and Lumpton, 1962).但是,在肯尼亚的啤酒大麦(Hordum vuglare Linn)品种中,对这些特性的表型相关而言,没有什么可利用的信息.本报告估量了籽粒产量与其构成成分及与所选择的麦芽品质间的表型相关.
Four pairs of barley (Hordeum vulgare Linn) varieties and six-rowed barley varieties were used to determine the relationship between yield and malting quality.The grain yield per plant, The number of grains per spike, the number of grains per 100 grains, the content of nitrogen and the content of water in grains.It was observed that the effect of the prism shape on the correlation of these traits was strongly influenced.In the two-rowed and six-rowed parents, the grain yield per plant and panicle per plant But there was a positive correlation between the grain yield and the yield components.While there was a negative correlation between the quality of malt, grain weight and nitrogen content had a positive correlation.The grain yield did not have strong correlation with any of the properties of malt quality. In the two shuttle parents, the number of spikes per plant and the number of grains per spike had a significant effect on grain yield.While the other components of yield were negatively correlated with each other, the number of spikelets and grain weight per plant were still positively correlated.It was observed that grain yield and grain There was a negative correlation between nitrogen content and grain weight and grain moisture content.The grain yield was produced by the number of ears per panicle, the number of grains per panicle and the average grain weight, while the quality of malt Do not react in this same way (Donald, 1962; Grafius and OKoli, 1974). Yield components are generally positively correlated with grain yield (Asana et al, 1955; Sikwell and Jain, 1958; Sidwell et al, 1976). However, the yield components are generally negative (Rasmsson and Cannell, 1970; Mcneal et al., 1978). The most important malt quality is low kernel nitrogen content and moisture content, high germination rate, average grain weight, and meal output. It is not easy to improve together. There is a negative correlation between grain yield and nitrogen content (Hartog and Lambert, 1953; Bell and Lumpton, 1962). However, in the Hordum vuglare Linn variety in Kenya, There is no available information regarding the phenotypic correlation of these traits, and the report assesses the correlation between grain yield and its composition and the phenotype of the selected malt quality.