Analysis of Powdery Mildew Resistance in Wild Melon MLO Mutant Inheritance and Location of Powdery Mildew Resistance Gene in Melon PMR6 Inheritance and Location of Powdery Mildew Resistance Gene in Melon PMR6 Effects of powdery mildew infection on zucchini growth under elevated CO2 and temperature Sensitivity of Podosphaera xanthii to thiophanate-methyl and characteristics of resistant mutants Analysis of Powdery Mildew Resistance in Wild Melon MLO Mutant Influences of Na2SiO3  on phenolic contents in hullless pumpkinand its resistance to powdery mildew