甘薯直接种植种质的母子根性状评价

IF 1.6 3区农林科学 Q2 AGRONOMY

Plant Production Science Pub Date : 2022-06-20 DOI:10.1080/1343943X.2022.2090393

T. Sakaigaichi, Keisuke Suematsu, Y. Terajima, A. Kobâyashi, Yukari Kawata, Y. Kai

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引用次数: 1

摘要

摘要红薯的直接种植（即种子根的种植）会形成两种根系类型——“母根”和“子根”。由于母根没有商业价值，因此需要高而稳定的子根产量来提高直接种植栽培的接受度。为了为有效育种奠定基础，对直接种植的28个甘薯基因型的根系性状进行了母根重、子根重（DRW）、总根重（TRW）、DRW/TRW比（RDRW）和母根膨大率的评价。所有五个性状的基因型之间都存在显著差异（p<0.01）。然而，我们得出结论，RDRW是直接种植条件下表现的可靠指标，因为它显示出最高的估计遗传力（0.57），而具有高RDRW的基因型也显示出显著低的变异系数值。图形摘要

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Evaluation of mother and daughter root traits in sweet potato germplasm cultivated by direct planting

ABSTRACT Direct planting (i.e. the planting of seed roots) in sweet potato results in the formation of two root types – ‘mother’ and ‘daughter’ roots. High and stable daughter root yields are necessary to improve the acceptance of direct planting cultivation because mother roots have no commercial value. To establish a basis for the effective breeding, the root traits of 28 sweet potato genotypes cultivated by direct planting were evaluated for mother root weight, daughter root weight (DRW), total root weight (TRW), ratio of DRW to TRW (RDRW), and ratio of mother root enlargement. Significant differences between the genotypes were observed for all five traits (p < 0.01). However, we concluded that RDRW is a reliable indicator for performance under direct planting cultivation because it showed the highest estimated heritability (0.57), and genotypes with high RDRW also indicated notably low values for coefficient of variation. Graphical abstract

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来源期刊

Plant Production Science 农林科学-农艺学

CiteScore

5.10

自引率

4.00%

发文量

审稿时长

>36 weeks

期刊介绍： Plant Production Science publishes original research reports on field crops and resource plants, their production and related subjects, covering a wide range of sciences; physiology, biotechnology, morphology, ecology, cropping system, production technology and post harvest management. Studies on plant production with special attention to resource management and the environment are also welcome. Field surveys on cropping or farming system are also accepted. Articles with a background in other research areas such as soil science, meteorology, biometry, product process and plant protection will be accepted as long as they are significantly related to plant production.