Diversity in Fruit Morphology and Nutritional Composition of Maxim in Northeast China.

Although Manchurian walnut ( Maxim) is widely distributed in northeast China, very few studies had been reported on its diversity among different populations. We surveyed 12 populations in their native habitats across the northeast region of China and profiled 13 fruit morphological traits. We found a large degree of variations for these traits, especially for fruit weight (coefficient of variation, or CV of 22.