Mosaic and mottling

The SMV causing mosaic in soybean was readily transmissible through sap, seed and aphids. Sap transmission of the SMV on soybean cv. JS-335 produced characteristic symptoms such as dark green colour of leaves, mosaic and mottling symptoms, crinkling, leaf puckering of leaves. The soybean mosaic virus infected a wide range of the host plants.

5p quenchua8 29-09-2020 8 0   Download

The SMV was readily sap transmissible to Soybean cv. JS-335 when the inoculum was prepared in 0.1 M phosphate buffer (pH 7.0) and produce typical symptoms such as mottling, crinkling of leaves, leaf puckering and dwarfing. The cultivar JS-335 was more susceptible to SMV than other cultivars like PK-1029 and MACS-13. The extract prepared from the leaves of soybean proved to be most infectious containing the highest concentrations of the virus as compared to the extracts obtained from other plants parts (Stem and Root).

3p trinhthamhodang6 09-07-2020 13 2   Download

Under field conditions, Soybean mosaic virus infected plants exhibited the major symptoms viz., mosaic and mottling, crinkling, leaf puckering, dwarfing and younger leaves showed clear mosaic symptoms etc. The SMV Infected plants showed considerable reduction in plant height, pod length, grains per pod and pods per plant that leads to considerable reduction in the economic yield. The SMV was readily sap transmissible to cv. JS-335 when the inoculum was prepared in 0.1 M phosphate buffer (pH 7.0) and produce typical symptoms such as mottling, crinkling of leaves, leaf puckering and dwarfing.

6p trinhthamhodang6 09-07-2020 15 1   Download

Field surveys were conducted for collection of CMV virus isolates in bell pepper depicting a wide range of symptoms ranging from mosaic, mottling, yellow discoloration, vein clearing, leaf deformation, shoe stringing or leaf narrowing, stunted growth to reduced fruit size. In an attempt to correlate the symptoms with virus concentration in different isolates, DAS-ELISA was performed on symptomatic plants and CMV was detected in majority of the isolates. It was observed that the plants with shoe stringing (typical symptom of CMV in bell pepper) had the highest O.D.

7p chauchaungayxua5 05-05-2020 11 2   Download

Yellow mosaic disease (YMD) on horsegram caused by begomovirus belongs to family geminiviridae is an emerging threat for crop cultivation in peninsular India and in many parts of Karnataka. The present etiological studies indicated that the symptoms characterized by faint yellow discoloration on the young leaves in the beginning as disease progresses, the leaves show characteristic symptoms of mottling.

21p chauchaungayxua4 18-03-2020 10 1   Download

Papaya ring spot virus (PRSV) is the most destructive disease of Papaya, responsible for yield reduction of Papaya all over the world. PRSV exhibited different types of symptoms on Papaya plant in the field like ringspot , vein clearing, vein banding, chlorosis of younger leaves, filiformy, shoestring, mosaic, mottling, stunted growth etc. Molecular diagnosis of PRSV was done with the help of gene specific primers through PCR. Gel electrophoresis results show a 300bp clear band which confirms the presence of PRSV in the plants. Sequencing was done and phylogenetic tree was made.

8p cothumenhmong1 08-12-2019 16 0   Download

Pigeon pea is an important drought tolerant pulse crop. Yellow mosaic disease (PYMD) was appeared in the farmers’ field of Chhattisgarh. Present study aimed to record incidence & identify causal agent associated with PYMD and reason for low disease incidence. Survey and symptomatology was recorded in the farmers’ field of Chhattisgarh. PYMD incidence and vector population was recorded in the experimental field of ICARNIBSM, Raipur during summer 2017. Causal agent associated with PYMD was identified by PCR.

5p cothumenhmong1 08-12-2019 9 1   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Effects of Cowpea mottle virus and Cucumber mosaic virus on six Soybean (Glycine max L.) cultivars

5p dauphong4 24-12-2011 54 3   Download