Among deciduous species, the peach tree (Prunus persica [L.] Batsch.) is of great importance in high tropics. However, growth behavior this fruit for different cultivated varieties unknown. So, adjustment to double sigmoid curves assumed all even though type have been reported many cultivar. This has led misinterpretation information, impeding decision-making terms management. Non-linear regres...

Genetic interrelatedness among 13 strains of mycoplasmalike organisms (MLOs) from various sources was evaluated by dot hybridization and restriction fragment length polymorphism analyses using cloned DNA probes derived from Canadian peach X (CX) and western X (WX) MLOs. Dot hybridization analysis indicated that CX, WX, and clover yellow edge MLOs are closely related and form a distinct strain c...

Criconemella xenoplax, Fusarium solani, and F. oxysporum caused necrosis of Nemaguard peach feeder roots in greenhouse tests. Root necrosis was more extensive in the presence of either fungus than wtih C. xenoplax alone. Shoot growth and plant height were less for plants inoculated with F. oxysporum or F. solani than for plants inoculated with the fungi plus C. xenoplax. Neither synergistic nor...