植物学性状参与脐橙果实油斑病调控的矿质营养代谢机制研究  

Study on the relation between botany characters, mineral nutrition levels and oleocellosis development in 72-1 Navel orange

作　　者：郑永强[1,2] 邓烈[1] 何绍兰[1] 易时来[1] 赵旭阳[2] 毛莎莎[2] 

机构地区：[1]西南大学-中国农业科学院柑桔研究所国家柑桔工程技术研究中心,重庆400712 [2]西南大学园艺园林学院,重庆400715

出　　处：《果树学报》2010年第3期461-465,共5页Journal of Fruit Science

基　　金：中央高校科研业务费重点项目(XDJK2009B025);科技部支撑计划项目(2007BAD47B02;2007BAD47B04和2008BAD92B08);重庆市柑桔学重点实验室开放基金CKLC200806;重庆市重大攻关项目(CSTC;2006)

摘　　要：对红橘砧奉节72-1脐橙正常和油斑病发生较严重的挂果枝植物学性状以及挂果枝所在营养枝功能叶片和果皮N、P、K、Ca含量进行了分析,探讨植物学性状对矿质元素代谢调控与柑橘果实油斑病发生的关系。结果发现奉节72-1脐橙果实油斑病的发生与果枝植物学性状和果枝所在功能叶片矿质营养N、K和Ca含量有紧密的关系,果枝长度6～15cm、果枝叶数7～10枚、挂果数2～3个果实油斑病程度较轻。红桔砧奉节72-1脐橙果实油斑病程度较重的挂果枝所在营养枝功能叶片和果皮中N、K和Ca含量均显著低于油斑病程度较轻的植株,呈显著或极显著负相关,而与叶片和果皮中P的含量均未达显著水平。The effects of botany characters of fruit branch, mineral nutrition levels in leaf and fruit peel on oleocellosis development were studied in Fengjie 72-1 Navel orange （Citrus sinensis Osbeck）. The results showed that the botany characters of fruit branch had a significant influence on oleocellosis development, and fruit oleoeellosis decreased significantly when the length of fruit branch, the leaves number and fruits number on the fruit branch varied from 6 to 15 cm, 7 to 10 leaves and 2 to 3 fruits, respectively. Whilst, the N, K and Ca concentration in leaves and fruit peels of slight oleocellosis trees were significantly higher than that in leaves and fruit peels of severe oleocellosis tree, and there were significant negative correlation between degree of oleocellosis and N, K and Ca content in leaves and fruit peels. However, the P content in leaves and fruit peels did not have a significant influence on the degree of oleocellosis.

关 键 词：柑橘 奉节脐橙 油斑病 果皮 叶片 矿质元素 

分 类 号：S666[农业科学—果树学]