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锦橙植株喷K能显著提高叶片含K量,可减轻裂果发生。裂果果皮含K量显著低于正常果皮。叶片有效B含量较高有助于减轻裂果发生。叶片K、B含量与裂果率呈高度负相关,并呈极显著的线性回归关系。果皮有效B含量与裂果率呈显著负相关。叶片含K1.30％、有效B26ppm可能是裂果严重发生的临界值。叶片K与有效B呈显著正相关和高度的线性回归关系。K、B间的相助作用有利于减轻裂果发生。果皮K与Ga呈极显著负相关和高度的线性回归关系。Ca可能通过对K的强烈拮抗作用间接影响裂果发生。本文还讨论了低K、B导致裂果的机制,并提出了减轻裂果的措施。
Spraying K on the orange plant can significantly increase the leaf K content, can reduce the occurrence of cracking. Fruit peel K content was significantly lower than normal peel. Effective leaf B content helps to reduce the occurrence of split fruit. Leaf K, B content and the cracking rate was highly negative correlation, and showed a very significant linear regression. Peel effective B content and fruit cracking rate was significantly negatively correlated. Leaves containing K1.30%, effective B26ppm may be the critical value of cracking serious occurrence. Leaf K and effective B showed a significant positive correlation and a high degree of linear regression. K, B mutual aid helps to reduce the occurrence of split fruit. Peel K and Ga showed a very significant negative correlation and a high degree of linear regression. Ca may indirectly affect the occurrence of cleavage through the strong antagonism of K. The paper also discussed the mechanism of low K, B leading to cracking, and put forward some measures to reduce the cracking.