摘要
以果实易裂品种‘糯米糍’荔枝为材料 ,研究叶面喷施Ca(NO3) 2 和GA处理对其裂果的影响。结果表明 :Ca(NO3) 2 和GA处理均能使裂果率明显降低。果实发育初期 ,果皮中原果胶和水溶性果胶的含量均有所升高 ,且原果胶含量的增高幅度明显 ;随着果实的成熟 ,可溶性果胶含量有所降低 ,原果胶含量大幅度提高。此外 ,除果实成熟期外 ,果皮内果胶脂酶 (PE)和多聚半乳糖醛酸酶 (PG)的活性一直有上升趋势 ,且PG的活性与水溶性果胶的含量有极显著正相关 ,而纤维素酶 (CX)
甆uomici’Litchi trees(8 year old)were sprayed with calcium and gibberllin and the control trees were sprayed with water.The results showed that the treatment with Ca(NO 3) 2 and treatment with GA all could reduce the proportion of cracking fruit distinctly,In the early stage,the content of water soluble pectin and protopectin increased,meanwhile the content of protopectin increased more than the content of water soluble pectin,but when the fruit was becoming ripe,the content of water soluble pectin decreased gradually while the content of protopectin increased largely.PE and PG activities tended to increase with fruit development till ripening stage when they turned to decrease sharply.There was significant correlation between PG activity and the content of water soluble pectin.CX increased throughout the whole development and has two peaks.
出处
《园艺学报》
CAS
CSCD
北大核心
2001年第4期348-350,共3页
Acta Horticulturae Sinica
