摘要
为了更好地促进油茶良种应用和高效栽培,以树形结构差异较大的“长林4号”和“长林40号”为研究对象,通过疏剪和短截技术措施处理,分析了不同强度修剪对冠层光合利用、坐果率、春梢生长和矿质营养含量、果实性状的影响。结果表明:修剪处理降低了冠层有效光合辐射截获率,修剪强度越高,有效光合辐射截获率越低;修剪处理显著提高了春梢抽梢长度,提高了春梢叶片氮、钾元素含量,降低了叶片钙元素含量,且不同修剪强度处理间无显著差异;适度提高修剪强度,可提高油茶坐果率,且修剪处理影响了果实单鲜果重、鲜出籽率和单果籽粒数,对果形指数无显著影响。
In order to better promote the application and efficient cultivation of high-quality oil tea varieties,‘Changlin 4’and‘Changlin 40’with significant differences in tree structure were selected in this study.Through thinning and shortening techniques,the effects of different intensities of pruning on canopy photosynthetic utilization,fruit setting rate,spring shoot growth and mineral nutrient content,and fruit traits were analyzed.The results showed that pruning treatment reduced the PAR interception rate of the canopy,and the higher the pruning intensity,the lower the PAR interception rate was found;pruning treatment significantly increased the length of spring shoots,increased the nitrogen and potassium content of spring shoot leaves,and reduced the calcium content of leaves.There was no significant difference between different pruning intensities treatments;moderately increasing pruning intensity can improve the fruit setting rate of Camellia oleifera,and pruning treatment affects the weight of fresh fruits,the ratio of seed to fresh fruit,and the number of seeds per fruit,but has no significant effect on the fruit shape index.
作者
曹永庆
汪舍平
王昆喜
俞春莲
CAO Yong-qing;WANG She-ping;WANG Kun-xi(Research Institute of Subtropical Forestry,CAF,Hangzhou,Zhejiang 311400;Forestry Bureau of Changshan County,Changshan,Zhejiang 324200)
出处
《安徽农业科学》
2025年第22期97-99,130,共4页
Journal of Anhui Agricultural Sciences
基金
中央财政林业科技推广示范资金项目([2023]TS14)。
关键词
油茶
修剪
有效光合辐射截获率
坐果率
果实性状
Camellia oleifera
Pruning
PAR interception rate
Fruit setting rate
Fruit traits
