根据小麦的形态和生理特征并结合斑点病抗性，对喜马拉雅山以南地区的小麦基因型进行分类

Q4 Agricultural and Biological Sciences

ELECTRONIC JOURNAL OF PLANT BREEDING Pub Date : 2024-06-07 DOI:10.37992/2024.1502.046

Ponaganti Shiva, Kishore, Suvendu Kumar, Saikat Das, Basid Ali, S. Vishnupriya, L. Hijam, M. Chakraborty, Puspendu Dutta, R. Mandal, Avijit Kundu, S. Rout

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引用次数: 0

摘要

本研究旨在评估2018-19年度小麦（Triticum aestivum L.）50个不同基因型在产量属性和斑枯病等生物因素方面的变异性。在四个作物生长阶段，即 85 DAS、92 DAS、99 DAS 和 106 DAS，对形态表观性状、生理参数和斑枯病（Bipolaris sorokiniana (Sacc.) Shoem）病害进行了观察记录。叶绿素指数（CI）的平均值表明，随着生长阶段的增加，叶绿素指数逐渐下降。ESWYT-50 的 AUCIDC 值最高（128.33），而 ESWYT-25 的 AUCIDC 值最低（22.75）。不同生长阶段疾病严重程度的平均值表明，随着生长阶段的增加，疾病严重程度也逐渐增加。AUDPC、AUCIDC 和三个形态表型性状之间的相关性研究表明，AUDPC 和 AUCIDC 之间存在显著的正相关。D 2 分析将 50 个小麦基因型分为 6 个群组。根据 D 2 分析，选择指数值较低的基因型有 ESWYT-36、ESWYT-40、ESWYT-22、ESWYT-35、ESWYT-18、ESWYT-10 和 ESWYT-1，它们也分布在不同的分化群中。因此，它们可作为抗斑点病、早花型和高产的基因型。所有性状都表现出较低的 PCV 和 GCV 值，表明小麦基因型的祖先中存在共同的亲本。

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Classification of wheat genotypes on the basis of morphological and physiological traits in combination with spot blotch resistance under terai sub-Himalayan region

The present study was carried out to evaluate variability among 50 diverse genotypes of wheat ( Triticum aestivum L. ) for yield attributes and biotic factor like spot blotch during 2018-19 rabi season. Observations were recorded for morpho-phenetic traits, physiological parameter and disease observations of spot blotch ( Bipolaris sorokiniana (Sacc.) Shoem) was done at four crop growth stages viz. 85 DAS, 92 DAS, 99 DAS and 106 DAS. The mean value of chlorophyll index (CI) indicated gradual decline of CI with advancement in growth stages. Highest value of AUCIDC was shown by ESWYT-50 (128.33), while the lowest value was exhibited by ESWYT-25 (22.75). Mean value of disease severity in the different growth stages indicated gradual increase in disease severity along with advancement in growth stages. Correlation study among AUDPC, AUCIDC along with three morpho-phenotypic traits revealed significant and positive correlation between AUDPC and AUCIDC. The D 2 analysis distributed 50 wheat genotypes into six clusters. The genotypes having lower selection index values were ESWYT-36, ESWYT-40, ESWYT-22, ESWYT-35, ESWYT-18, ESWYT-10, and ESWYT-1, which were also distributed in different divergent clusters as per D 2 analysis. Thus, they could be used as spot blotch resistant genotypes with early flowering type along with high yield. All the traits exhibited low PCV and GCV values indicating the presence of common parents in the ancestry of the wheat genotypes.

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来源期刊

ELECTRONIC JOURNAL OF PLANT BREEDING Agricultural and Biological Sciences-Soil Science

CiteScore

1.10

自引率

0.00%

发文量

153

审稿时长

25 weeks

期刊介绍： Electronic Journal of Plant Breeding (EJPB) is an official publication of Indian Socciety of Plant Breeders (ISPB). The main aim of this journal is to promote the general advancement of plant breeding and to create a forum to bring together and facilitate the exchange of information amongst plant breeders. It is published quarterly as ONLINE as OPEN ACCESS journal in the official web page www.ejplantbreeding.org. The publications are subjected into DOUBLE BLIND PEER REVIEWES. Original research articles and research communications on all areas of Plant Breeding viz., genetics, breeding, cytology, germplasm evaluation, marker assisted breeding, etc are accepted. At present Review articles are not accepted for publication.