Microspore Abortion and Levels of Organic free Radicals in Anthers of Male-Sterile Rice ORGANIC FREE RADICALS AND FREE RADICAL SCAVENGERS IN OVERWINTERING CONIFER NEEDLES Electron spin resonance spectrum from overwintered korean pine seedlings Effect of Light on Scavenging Capacity for Organic Free Radical in Leaves of Four Woody Plants Effects of Actinote thalia pyrrha (Fabricius) feeding on the physiological indexes in Mikania micrantha leaves