摘要
选取连续3年持续低产和高产的2个果园作为研究对象,以新疆主栽品种‘纸皮’扁桃为试材,分析在休眠期前后结果枝韧皮部和花芽中碳水化合物组分及代谢过程中的相关酶活性变化差异,同时统计2个果园当年坐果和产量情况,探讨扁桃结果枝休眠期前后碳水化合物及相关酶活性代谢变化及其对坐果、产量的影响,为低产果园改造提供理论依据。结果显示:(1)休眠期扁桃结果枝中可溶性糖的积累以蔗糖和山梨醇为主。(2)休眠期前后高产和低产果园内扁桃结果枝中的碳水化合物与其代谢相关酶(酸性转化酶、中性转化酶、蔗糖合成酶、蔗糖磷酸合成酶等)活性变化趋势基本一致。(3)扁桃休眠期结果枝韧皮部和花芽中的碳水化合物含量和代谢相关酶活性基本表现为高产园大于低产园。研究表明,扁桃休眠期结果枝碳水化合物的积累以蔗糖和山梨醇为主,其含量与相关代谢酶活性密切相关,其积累水平直接影响着翌年扁桃的座果和产量。
To analyze the changes of carbohydrate content and the activities of related enzymes in bearing branches and their effects on fruit setting before and after period of dormancy,and to provide theoretical basis for the transformation of almond low yield garden,we selected the same age and the same species in2012-2014under three consecutive years of sustained low yield and sustained high yield orchards as the research object,taking the main cultivated varieties‘Zhipi’as test material,analyze the contents of carbohydrate components and activities of related enzymes in the phloem and flower bud of bearing branches before and after the period of dormancy.Meanwhile,we also carried on the statistical analysis to the percentage of fruit set and the yield per tree,the results show that:(1)soluble sugar accumulation of bearing branches is basically about sucrose and sorbitol during dormancy.(2)The trend of carbohydrate content changes in the phloem and flower bud of bearing branches before and after period of dormancy is identical to the changes of activities of related enzymes(acid invertase,neutral invertase,sucrose synthase,sucrose phosphate synthase,ect.)in the high-yield orchard and low-yield orchard.(3)The carbohydrate contents and related enzyme activities of bearing branches in high-yield orchard are higher than those in low-yield orchard.It is thus clear that the level of carbohydrate accumulation of bearing branches during dormant period is one of the key factors that can influence the percentage of fruit set and the yield in the following year.
作者
郭春苗
杨波
木巴热克.阿尤普
许娟
车玉红
龚鹏
]GUO Chunmiao;YANG Bo;MUBAREKE·Ayoupu;XU Jua;CHE Yuhong;GONG Peng(Institute of Horticulture,Xinjiang Academy of Agricultural Sciences, Urumqi 830052, China;Research Center for Xinjiang Characteristic Fruit Tree of Xinjiang Agricultural University, Urumqi 830091, China;Xinjiang Agricultural Professional Technology College, Changji, Xinjiang 831100 China)
出处
《西北植物学报》
CAS
CSCD
北大核心
2017年第11期2221-2229,共9页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金(31460497)
上海合作组织科技伙伴计划(2017E01025)
关键词
扁桃
休眠期
碳水化合物
代谢酶
坐果率
almond
period of dormancy
carbohydrate metabolism
metabolizing enzymes
fruit setting rate
