Screening Potential Citrus Rootstocks for Phytophthora nicotianae Tolerance
Seeds from four citrus rootstocks including sour orange, Bitters-C22 citrandarin, Sarawak pummelo , Rio Red grapefruit, and Sarawak Dining Stool pummelo , Bower mandarin were exposed to high inoculum levels of Phytophthora nicotianae to screen for tolerance.Inoculation of pregerminated seeds (PGIS) and non-PGIS was carried out.The average P.nicotia