Phenotyping of Pigeonpea Genotypes Against Phytophthora cajani an Incitant of Phytophthora Blight Disease.

Autor: JADESHA, G., SHARMA, MAMTA, REDDY, P. NARAYAN
Předmět:
Zdroj: Mysore Journal of Agricultural Sciences; Jul-Sep2021, Vol. 55 Issue 3, p19-23, 5p
Abstrakt: The use of resistant cultivars is considered to be the best way of controlling the disease. The present investigation was carried to identify pigeonpea genotypes with resistance to Phytophthora blight (PB) caused by Phytophthora cajani. Artificial screening of 19 pigeonpea genotypes was carried out using stem inoculation method. None of them showed resistance reaction. Nine genotypes showed moderate resistance reaction with less than 20 per cent disease incidence. Phenotyping of 57 pigeonpea entries comprising varieties, hybrids and wild species for resistance to PB under natural disease pressure. Among the genotypes, incidence of disease ranged from 0 to 100 per cent., 38 genotypes showed resistance reaction with an incidence of less than 10 per cent and six genotypes showed moderate resistance reaction. The resistant / moderately resistant genotypes identified can be utilized for breeding programme as donors. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index