Ca content ％ ％ Treatment mg/100g bitter rot fresh weight pit 不喷洒 2.03 56 0.4 喷洒 3.11 5 0.3 不喷洒,真空渗入 2.67 5 5.2 喷洒, 真空渗入 3.85 1 5.6 不同采前和采后钙处理对苹果（ Cox 品种）钙含量 和采后生理失调的影响
Ca content ％ ％ Treatment mg/100g bitter rot fresh weight pit 不喷洒 2.03 56 0.4 喷洒 3.11 5 0.3 不喷洒,真空渗入 2.67 5 5.2 喷洒, 真空渗入 3.85 1 5.6 不同采前和采后钙处理对苹果（ Cox 品种）钙含量 和采后生理失调的影响
(二) 缺硼引起的营养失调 (Disorders associated with low boron levels) 症状： 黑心 肉质部分的木质化 解决方法：田间喷施硼砂 (borax)
(二) 缺硼引起的营养失调 (Disorders associated with low boron levels) 症状： 黑心 肉质部分的木质化 解决方法：田间喷施硼砂 (borax)
四、乙烯毒害(Ethylene injury) TABLE2 Examples of detrimental effects of ethylene on postharvest quality of vegetables Commodity Symptoms of Ethylene injury Aspragus Increase toughness of spears Beans,Snap Loss of green color(yellowing) Broccoli Yellowing, abscission of florets, development of off-flavors Cabbage and Chinese Cabbage Yellowing and abscission of leaves Carrots Development of bitter flavor
四、乙烯毒害(Ethylene injury) TABLE2 Examples of detrimental effects of ethylene on postharvest quality of vegetables Commodity Symptoms of Ethylene injury Aspragus Increase toughness of spears Beans,Snap Loss of green color(yellowing) Broccoli Yellowing, abscission of florets, development of off-flavors Cabbage and Chinese Cabbage Yellowing and abscission of leaves Carrots Development of bitter flavor
Cauliflower Leaf abscission and yellowing,brown discoloration of remaining portions of leaves Cucumber and Summer Squash Accelerated softening,yellowing Eggplant Calyx(花萼) abscission,browning of pulp (果肉)and seeds,accelerated decay Lettuce Russet(赫色) spotting Potato Sprouting Sweet Potato Brown discoloration and off-flavor detectable upon cooking Turnip Increased toughness Watermelon Reduced firmness, flesh tissue maceration resulting in thinner rind, poor flavor
Cauliflower Leaf abscission and yellowing,brown discoloration of remaining portions of leaves Cucumber and Summer Squash Accelerated softening,yellowing Eggplant Calyx(花萼) abscission,browning of pulp (果肉)and seeds,accelerated decay Lettuce Russet(赫色) spotting Potato Sprouting Sweet Potato Brown discoloration and off-flavor detectable upon cooking Turnip Increased toughness Watermelon Reduced firmness, flesh tissue maceration resulting in thinner rind, poor flavor
TABLE 3 Examples of detrimental effects of ethylene on ornamentals and nursery stock Commodity Symptoms of ethylene injury Cut Flowers Failure to open of flowers cut at the bud stage,closure of open flowers (“sleepiness”) Flowering Plants Flower abscission, flower closure(wilting) Foliage Plants Abscission of leaves, leaf chlorosis(变色), epinastic responses (downward curvature of leaves)
TABLE 3 Examples of detrimental effects of ethylene on ornamentals and nursery stock Commodity Symptoms of ethylene injury Cut Flowers Failure to open of flowers cut at the bud stage,closure of open flowers (“sleepiness”) Flowering Plants Flower abscission, flower closure(wilting) Foliage Plants Abscission of leaves, leaf chlorosis(变色), epinastic responses (downward curvature of leaves)