Record Details

Impact of yellow leaf disease in sugarcane and its successful disease management to sustain crop production.

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Impact of yellow leaf disease in sugarcane and its successful disease management to sustain crop production.
Not Available
 
Creator Viswanathan R.
 
Subject Sugarcane, Yellow leaf disease, YLD, Sugarcane yellow leaf virus, ScYLV
 
Description Not Available
Yellow leaf disease (YLD) caused by Sugarcane yellow leaf virus (ScYLV), a Polerovirus, Luteoviridae occurs in major sugarcane growing countries across the world. During late 1990s it was recorded in India. Although the disease was initially thought to be a minor disease in the country, by 2005 onwards the disease severity attained epidemic status across the states. Currently, the ruling varieties such as Co 86032, Co 0238, CoV 09356 etc in India are affected disease epidemics thereby cane productivity is reduced up to 50% and juice yield by 40-50% in severe cases. ScYLV and other sugarcane viruses causing and bacterium causing ratoon stunting disease, cause varietal degeneration in the field. Systemic accumulation of the viruses and the bacterium in high titre reduces vigour of the varieties in the subsequent vegetative generations or ratoons, hence their potential yield of the varieties could not be harnessed. Virus spreads to the field through infected setts and Melanaphis sacchari, sugarcane aphid is the insect vector which transmits the virus among the plants in the field. The virus was characterized on complete genome basis and about 10 genotypes were recognized across the countries. The genotype ScYLV-IND predominantly prevails in India. Various diagnostics, based on serological and molecular were developed for the virus, among them tissue blot and RT-PCR assays are commonly used. Among the disease management strategies, disease resistance and clean seed have the practical feasibility. Hence parental clones and pre-release varieties are screened for disease resistance in India. Virus elimination enabled through tissue (meristem) culture in combination with molecular diagnostics is the most efficient approach to contain the disease in the field and to address varietal degeneration. Such efforts led to varietal rejuvenation and increase in cane yield by 30-35% under field conditions.
Not Available
 
Date 2021-09-20T03:28:32Z
2021-09-20T03:28:32Z
2021-05-27
 
Type Review Paper
 
Identifier Not Available
0367-973X
http://krishi.icar.gov.in/jspui/handle/123456789/64508
 
Language English
 
Relation Not Available;
 
Publisher Springer