SONG Peng-hui,LYU Tao,ZHANG Jing-hua,et al.Effects of Different Root Cut Treatments on Seedling Quality，Flowering and Fruiting of Strawberry[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(12):57-61.[doi:DOI:10.11942/j.issn1002-2767.2021.12.0057]
不同断根处理对草莓子苗质量及开花结果的影响
- Title:
- Effects of Different Root Cut Treatments on Seedling Quality，Flowering and Fruiting of Strawberry
- Keywords:
- root cut; the quality of strawberry seedlings; blossom
- 文献标志码:
- A
- 摘要:
- 为培育优质草莓子苗，促进草莓增产，本研究对供试草莓品种“爱莎”进行不同时间的断根处理，试验共设4个处理，分别为8月5日(T1)、8月15日(T2)、8月25日(T3)和9月5日(T4)，不断根处理为对照（CK），研究断根处理后草莓植株C、N含量及其比值的变化趋势以及不同断根处理对草莓子苗质量及开花结果的影响。结果表明：草莓植株C、N含量分别在断根处理的第7天和第14天最低，随后上升；C/N比值在断根后第14天最高，随后下降；C、N含量和C/N比值均在断根后28 d恢复到断根之前的水平。T1处理的茎粗最大，其次为T2和T3处理。CK的株高最大，其次为T1和T2，T3处理的株高最小。T3处理的叶面积最大，其次为T4处理。T3处理的地上部鲜重和地下部鲜重及根冠比最大，其次为T4处理。T3草莓的物候期均较其他处理和CK提前，其次为T4，而T1和T2与CK物候期较接近。8月25日（T3）和9月5日（T4）进行断根处理的“爱莎”草莓苗，花序较整齐，产量显著提高，但果实中可溶性固形物含量、可滴定酸含量和固酸比等品质性状无明显变化。
- Abstract:
- In order to cultivate high-quality strawberry seedlings and further improve the yield,the strawberry varieties Aisha were treated with root cut treatments at different times.The experiment has 4 treatments,including August 5th (T1),August 15th (T2),August 25th (T3) and September 5th (T4),taking no root treatment as a control (CK).The changes in the content and ratio of C and N in strawberry plants after root-cutting treatment and effects of different root cut treatment on seedling quality and flowering and fruiting traits of strawberry.The results showed that the content of C and N in strawberry plants reached the lowest on the 7th and 14th day of root cutting treatment,then rose;The C/N ratio reached its highest point on the 14th day after root cutting,subsequent dropped;C,N content and C/N ratio were restored to their previous levels 28 days after root cutting.T1 treatment had the largest stem diameter,the second were T2 treatment and T3 treatment.CK treatment had the largest plant height,the second were T1 treatment and T2 treatment,the lowest plant height was T3 treatment.T3 treatment had the largest leaf area,followed by T4 treatment.The fresh weight of above ground part,fresh weight of underground part and root shoot ratio were the highest in T3 treatment,followed by T4 treatment.The phenological period of T3 strawberry was earlier than other treatments and CK,followed by T4 treatment,the phenological periods of T1 and T2 were closer to CK.After root cutting on August 25 (T3) and September 5 (T4),the flower inflorescence of Aisha strawberry seedlings was more orderly and the yield was significantly increased,but the fruit quality traits such as soluble solid content,titratable acid content and solid acid ratio had no significant changes.Root cutting has no obvious effect on strawberry fruit quality.
参考文献/References:
参考文献：［1］张学明,陈玉波,侯佳贤,等.草莓的花芽分化及其影响因素研究进展[J].园艺特产,2017(21):85.
备注/Memo
收稿日期：2021-09-06基金项目：黑龙江省农业科学院“农业科技创新跨越工程”专项（HNK2019CX11）；黑龙江省应用技术研究与开发计划项目（GA19B102）。第一作者：宋鹏慧（1988-），女，硕士，助理研究员，从事草莓育种及栽培生理研究。E-mail：345025202@qq.com。