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锰缺乏是高PH土壤中大豆生长反复出现的问题。当前,人们利用化肥来减轻由于锰缺乏而造成的减产。由于用化肥控制常无效,可在缺锰地区采用基因遗传耐性(法)。如果搞清它的基因遗传方式,那么发展对锰缺乏有耐性的大豆基因型就容易了。对有耐性种质系列A14中F_2和F_(2:3)的后代及有耐性栽培品种PrideB216进行耐锰缺乏的实地评估,其结果为被观察的大量后代对锰缺乏的反映显示为双基因遗传。这一模式被用于测定F_(2:3)家系均额定值和变异的分组分析结果所证实。F_2代狭意遗传率估量低(h~2=0.19)表明F_2表型差异不同主要是由于环境不同。因而,在F_2代中选出适合其生长的锰缺乏耐量是难的。根据F_(2:3)家系进行估计的狭意遗传率较高(h~2=0.70),表明根据F_(2:3)家系均值进行选择应是有效的。
Manganese deficiency is a recurring problem of soybean growth in high-pH soils. At present, people use fertilizers to reduce the production loss caused by manganese deficiency. Due to the often ineffective fertilizers, genetic resistance can be used in manganese-deficient areas. If you look at the way it is genetically engineered, then it is easier to develop a soybean genotype that is resistant to manganese deficiency. A field evaluation of manganese tolerant to PrideB216, a progeny of F_2 and F_ (2: 3) in a tolerant germplasm series A14, was performed and the results showed that a large number of offspring were observed to reflect manganese deficiency as biodistribution . This pattern was validated by the group analysis of all ratings and variations in F_ (2: 3) pedigrees. The low estimate of the heritability of the F2 generation (h ~ 2 = 0.19) suggests that the difference in F_2 phenotype is mainly due to different environments. Therefore, it is difficult to select the manganese deficiency suitable for its growth in F2 generation. The estimated heritability of the heritability based on the F_ (2: 3) pedigree was high (h ~ 2 = 0.70), indicating that selection based on the F_ (2: 3) pedigree means should be effective.