芸苔素内酯对冰糖橙品质、产量的影响

Effects of Brassinolide on Quality and Yield of Citrus Sinensis

为探索芸苔素内酯对冰糖橙品质、产量的影响,在冰糖橙上喷施不同次数的芸苔素内酯(处理5、3次)进行试验。结果表明:芸苔素内酯处理冰糖橙的新稍长度、叶片数较对照(未喷施芸苔素内酯)显著提升,差异极显著(p<0.01),处理1和处理2无显著差异(p>0.01、p>0.05);处理的单果重、果实横径、果实甜味、鲜味、单株产量较对照极显著增加(p<0.01),果皮厚度、酸味、涩味、苦味、咸味均有所降低;处理1单果重、果实纵径、可食率、甜味、鲜味、涩味与处理2相比差异极显著(p<0.01),果实横径、单株产量差异显著(p<0.05)。试验表明,在冰糖橙上喷施5次芸苔素内酯,其树体新稍生长状况、增产效果、果实品质、果实风味和鲜食口感状况最优,喷施芸苔素内酯3次的效果次之,未喷施芸苔素内酯的效果最差。因此,在栽培冰糖橙时推荐喷施5次芸苔素内酯。

In order to explore the effect of brassinolide on the quality and yield of citrus sinensis,different times of brassinolide were sprayed on citrus sinensis(5 times for one treatment and 3 times for the second treatment)for experiment.The result showed that the length of new shoots and the number of leaves of citrus sinensis treated with brassinolide were significantly increased compared with the control(no brassinolide sprayed),and the difference was extremely significant(p<0.01).There was no significant difference between treatment one and treatment two(p>0.01、p>0.05).The single fruit weight,fruit transverse diameter,fruit sweetness,umami,yield per plant of the treatment were significantly increased compared with the control,and the difference was extremely significant(p<0.01),the peel thickness,sourness,astringency,bitterness and saltiness were all decreased;There were significant differences(p<0.01)in single fruit weight,fruit longitudinal diameter,edible rate,sweetness,umami,and astringency between treatment 1 and treatment 2,and significant differences(p<0.05)in fruit transverse diameter,yield per plant.The first treatment of spraying brassinolide on citrus sinensis for 5 times showed the best tree growth,yield increase effect,fruit quality,fruit flavor and fresh fruit taste,the effect of spraying brassinolide for 3 times was the second,and the effect of not spraying brassinolide was the worst.Therefore,it was recommended to spray 5 times of brassinolide when cultivating rock sugar orange.