摘要
分别在8年生“大久保”桃的幼果期、硬果核期和成熟期进行遮阳处理,并喷施200μm/L水杨酸。结果表明,在遮阳条件下,水杨酸显著地提高了桃果实在幼果期和成熟期的GA3、ABA和ZA的含量,水杨酸提高了硬核期和成熟期的IAA含量,但降低了幼果期IAA的含量。水杨酸还提高了幼果期和成熟期桃果实内蔗糖合酶的活性和果实内蔗糖的含量。可见水杨酸在遮阳条件下,显著提高了桃果实的库强并促进了蔗糖的积累。
Shading treatment (shaded with double shading web resulting in the light intensity reducing to the 11 percent of control )was carried out and 200霱/L salicylic acid was respectively sprayed to 8-year-old 'Da Jiu Bao' peach trees (Prunus persica) in three different developing stages such as young fruit stage, hard drupe stage, and mature stage. The results showed that salicylic acid significantly improved the contents of GAs, ABA, and ZA in young fruit stage and mature stage, and improved the content of IAA in hard drupe stage and mature stage, but reduced the content of IAA in young fruit stage in the shading condition. At the same time, salicylic acid also improved the activity of sucrose synthase and the content of sucrose of fruit in young fruit stage and mature stage. So salicylic acid significantly improved the sink strength of peach fruit and the content of sucrose of fruit under the shading condition.
出处
《中国农学通报》
CSCD
2004年第3期169-172,178,共5页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金资助项目(No.300070531)
