SCREENING FOR HOLLOW HEART IN POTATO (SOLANUM TUBEROSUM L.) GENOTYPES
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Authors
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Satish Kumar Luthra
ICAR-Central Potato Research Institute
Keywords:
Hollow heart, quality, marketability, parental lines, advanced clones, potatoesAbstract
Hollow heart, a physiological disorder, impacts tuber quality and make marketable tubers unattractive and
can have adverse effect on marketability of the produce. The investigation on one hundred eight(108) potato genotypes
for presence of hollow heart symptoms revealed that 77 genotypes (71%) were free from hollow heart symptoms, while
remaining 31 genotypes (29%) showed presence of 10-100% hollow heart symptoms. Most of the indigenous varieties and
advanced clones were free from hollow heart symptoms. Screening of 5-10 medium sized tubers (80-100 gram) per genotype
depending upon availability of tubers in initial or advanced clonal stages would be realistic approach for screening of
hollow heart in potatoes. Parental line selected for hybridization in potato breeding must be free of hollow heart to achieve
the desirable gain in the segregating population.
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