Vol. 7, Issue 1 (2019)
In vitro screening of colocasia varieties or genotypes for their reaction against the Phytophthora colocasiae Racib
Author(s): AD Saykar, PG Borkar, Abdul Naim and HT Valvi
Abstract: Colocasia (Colocasia esculalanta (L.) Schott.) is an important tropical tuber crop for millions of people in developing countries. Leaf blight caused by Phytophthora colocasiae Racib. Is the most destructive diseases of colocasia causing a 25-50% loss in yield. In India pathogen is reported at Andhra Pradesh, Bengal, Bihar, Gujarat, Karnataka, Kerala, Madhya Pradesh, Maharashtra (Konkan region), Tamil Nadu, Uttar Pradesh and West Bengal. The pathogen is surviving in the soil and in tuber during off season. Secondary spread of the pathogen is through rain splash and irrigation water. The ability to cause disease symptoms across the varieties/ genotype was interpreted as virulence. The disease reaction of 9 varieties showed differences in resistance to P. colocasiae. Among the 9 varieties none of the variety showing immune and resistance reaction to P. colocasiae. Among the 9 variety/genotype of colocasia were screened against the reaction of leaf blight viz. TCbl 12-2, TCbl 12-5 and TCbl 12-7 were the moderately resistance, and TCbl 12-1, TCbl 12-4, TCbl 12-6, Muktakeshi were moderately susceptible also TCbl 12-3 and Telia were susceptible genotype.
Pages: 513-515 | 420 Views 55 Downloads
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How to cite this article:
AD Saykar, PG Borkar, Abdul Naim, HT Valvi. In vitro screening of colocasia varieties or genotypes for their reaction against the Phytophthora colocasiae Racib. Int J Chem Stud 2019;7(1):513-515.
