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Annual Research & Review in Biology, ISSN: 2347-565X,Vol.: 30, Issue.: 3

Original-research-article

Effect of Rice yellow mottle virus, Sobemovirus on the Contents of N P K Ca and Mg in Leaves of Infected Rice

 

N’doua Bertrand Guinagui1,2*, Fatogoma Sorho1, Sanogo Souleymane1, Brahima Koné3 and Daouda Koné1,2

1Laboratory of Plant Physiology, Faculty of Biosciences, Félix Houphouët-Boigny University, 22 B.P. 582 Abidjan 22, Côte d’Ivoire.

2African Center of Excellence-Climate Changes, Biodiversity and Sustainable Agriculture, 22 B.P. 582 Abidjan 22, Côte d’Ivoire.

3Earth Science Training and Research Unit, Department of Soil Science, Felix Houphouët-Boigny University, 22 B.P. 582 Abidjan 22, Côte d’Ivoire.

Article Information

Editor(s):

(1) Dr. Rishee K. Kalaria, Assistant Professor, Bioinformatics Section, Aspee Shakilam Biotechnology Institute, Navsari Agricultural University, Surat, India.

(2) Dr. George Perry, Dean and Professor of Biology, University of Texas at San Antonio, USA.

Reviewers:

(1) Jackson Venusto Modi Lado, University of Juba, South Sudan.

(2) Tan Geok Hun, Universiti Putra Malaysia, Malaysia.

Complete Peer review History: http://www.sdiarticle3.com/review-history/46625

Abstracts

Rice (Oryza spp) is one of the most important crops produced in the world. Rice production is dampered by environmental and biological factors including mainly pathogens, such as Rice yellow mottle virus (RYMV), which is the most rice devastating viral disease in Africa: whereas, These factors can be overcome by using different methods such as mineral fertilization supplying. To identify nutrients for this constraint management, a study was carried out in controlled condition in a greenhouse situated at Felix Houphouët-Boigny University station at Bingerville. The rice variety named Bouake 189 was sown in pots using local soil as substrate. Fourteen days old seedlings were inoculated mechanically with isolate of RYMV. Fertilizers N, P, K 12, 24, 18 (200 kg/ha) and 100 kg/ha of urea (46% N) were applied respectively. The concentrations of N, P, K, Ca and Mg as well as protein content in leaves were determined likely. Chlorophyll measurement was obtained using Spad-505. The severity and the (AUSPC) of the RYMV were evaluated. The presence of the RYMV in the infected leaves was confirmed by serological analysis. The averages of the various parameters were compared by ANOVA 2 with software STATISTICA version 7.1. Results showed significant difference (p < 0.001) between the seedlings according to infection levels and highest concentrations of P (0.40%), K (1.10%), Ca (1.49%), Mg (0.39%) and chlorophyll (37.37) were recorded in the leaves of non-infected seedlings whereas those related to infected seedlings were of 0.39%; 0.75%; 0.67%; 0.24% and 21.23 respectively. This was contrasting with N and protein contents recording 2.41% and 15.04 for the inoculated plants and 1.75% and 10.95 for the healthy plants respectively. The average severity and viral load of Rice yellow mottle disease were reduced respectively from 6.22 to 3.88 and from 2.132 to 1.577 under the action of the mineral fertilization (NPK), hence improving rice growth and yield to be targeted.

Keywords :

RYMV; N; P; K; Ca; Mg; proteins; fertilization.

Full Article - PDF    Page 1-10

DOI : 10.9734/ARRB/2018/46625

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