苹果果实日灼是一种常见的生理病害，每年在世界各主要苹果产区均有发生，给生产造成巨大损失。
Apple fruit sunburn, a common physiological disorder, happens widely in main apple-producing areas on the world and results in a huge loss annually.
苹果轮纹病是苹果生长期和贮藏期经常发生的一种主要病害。
The apple ring spot is an important disease and happens often at the apples growth and storage period.
这次DNA的重大发现能够带来新的苹果品种，这些改良后的品种更不容易受到病害侵袭。
The DNA breakthrough could result in new and improved apple varieties which are more resistant to disease.
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