Evaluation and characterization of indigenous rice ( Oryza sativa L.) landraces resistant to brown planthopper Nilaparvata lugens (St å l.) biotype 4

PeerJ

article

Debashis Roy¹  Abhisek Biswas³  Sukamal Sarkar⁴  Gautam Chakraborty¹  Ahmed Gaber⁵  Mohamed I. Kobeasy⁶  Akbar Hossain⁷ 

[1] Department of Agricultural Entomology;Plant Protection, Dhaanya Ganga Krishi Vigyan Kendra, Ramakrishna Mission Vivekananda Educational and Research Institute;Department of Agricultural and Environmental Sciences ,(DiSAA), University of Milan;School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute;Department of Biology, College of Science, Taif University;Department of Chemistry, College of Science, Taif University;Department of Agronomy, Bangladesh Wheat and Maize Research Institute

关键词: Antixenosis;    Antibiosis;    Brown planthopper;    Plant defence;    Folk rice;    Principal component;    Correlation;    Cluster dendrogram;   

DOI  :  10.7717/peerj.14360

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Evaluation and identification of resistant donors for brown planthopper (BPH) Nilaparvata lugens (Stål.), an economically important insect pest of rice, is a continuous process to develop new resistant rice varieties. However, several rice landraces of north-eastern India are not yet characterized for BPH resistance. In the present study, a set of 218 rice landraces were screened in both greenhouse and open-field conditions for three consecutive years, and thereafter forty selected promising entries were explored to evaluate their phenotypic and genotypic reactions against BPH biotype 4. Based on phenotypic evaluations, five landraces were identified as resistant, while 31 were moderately resistant, and grouped under the major cluster I and II, respectively, in a circular dendrogram. Antixenosis and antibiosis studies of these landraces divulged that, compared to the susceptible check variety, resistant landraces exhibited the lowest feeding rate, survival, and nymphal and adult settling, but higher frequency of unhatched eggs of BPH. Un-infested resistant landraces registered higher levels of ascorbic acid, oxalic acid and crude silica, however, elevated levels of total free amino acid, potassium and crude silica were observed under BPH herbivory. The present study focuses on identifying new donors having BPH resistance resources which could be useful in genomic studies for the development of BPH biotype 4 resistant rice varieties.

【 授权许可】

CC BY