| 不同时期叶面喷施多效唑对紫云英结实性的影响 |
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| 引用本文： | 郑春风,刘春增,任伟,李本银,王守刚,聂良鹏,吕玉虎,潘兹亮,曹卫东.不同时期叶面喷施多效唑对紫云英结实性的影响[J].植物营养与肥料学报,2021,27(1):172-178. |
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| 作者姓名： | 郑春风 刘春增 任伟 李本银 王守刚 聂良鹏 吕玉虎 潘兹亮 曹卫东 |
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| 作者单位： | 1.河南省农业科学院植物营养与资源环境研究所，河南郑州 450002 |
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| 基金项目： | 国家绿肥产业技术体系(CARS-22);河南省农业科学院优秀青年科技基金项目(2020YQ30);河南省农业科学院自主创新基金项目(2021ZC35);国家重点研发计划(2018YFD0200200)。 |
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| 摘 要： | 目的]探讨多效唑喷施时期对紫云英结实特性的影响,明确紫云英结实性最佳化控时期,以期为提高紫云英种子产量提供参考.方法]以'信紫1号'为供试材料,分别于越冬后期(T1)、返青期(T2)、现蕾期(T3)、初花期(T4)和花后5天(T5)进行叶面喷施处理,以喷施清水为对照.在盛花期,观察记载主茎不同花序位花荚发育的形态及...
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| 关 键 词： | 紫云英 多效唑 喷施时期 结实性 |
| 收稿时间： | 2020-02-19 |
Effects of spraying stages of paclobutrazol on seed setting characteristics of Chinese milk vetch(Astragalus sinicus L.) |
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| ZHENG Chun-feng,LIU Chun-zeng,REN Wei,LI Ben-yin,WANG Shou-gang,NIE Liang-peng,Lü Yu-hu,PAN Zi-liang,CAO Wei-dong.Effects of spraying stages of paclobutrazol on seed setting characteristics of Chinese milk vetch(Astragalus sinicus L.)[J].Plant Nutrition and Fertilizer Science,2021,27(1):172-178. |
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| Authors: | ZHENG Chun-feng LIU Chun-zeng REN Wei LI Ben-yin WANG Shou-gang NIE Liang-peng Lü Yu-hu PAN Zi-liang CAO Wei-dong |
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| Institution: | 1.Institute of Plant Nutrition Agricultural Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China |
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| Abstract: | 【Objectives】The effect of applying paclobutrazol at different stages were compared through seed setting characteristic of Chinese milk vetch,in expectation of providing references for improving yield through use of chemical regulation.【Methods】A Chinese milk vetch cultivar‘Xinzi No.1’”was used in a field experiment.Five foliar application stage treatments were setup,including late wintering(T1),returning green(T2),squaring(T3),pre-flowering(T4),and 5 days after-flowering(T5),and foliar spraying water was used as control(CK).During the flowering stage,the morphological and quantitative characteristics of flowers and pod setting at the basal,central,and apical inflorescences were investigated.At harvest,the number of pod,seed and seed weight at the three inflorescences,and the yield and yield components were determined using conventional methods.【Results】The number of flowers,pods and seeds,and the setting rates of pods and seeds at bottom,central and apical inflorescences in all the spraying stage treatments,except in squaring stage,did not differ significantly from those in the control.When sprayed at the squaring stage,the seed yield was the highest,and was 32.3%higher than control.Under the spraying stage,the number of flowers,pods,seeds and the pod and seed setting rates in the basal inflorescences were increased by 20.4%,31.4%,23.9%,5.25%and 2.38%,and by 12.3%,32.9%,22.8%,7.42% and 2.08%in the central inflorescences,and by 18.4%,54.8%,70.9%,2.56%and 3.78%in the apical inflorescences,respectively,compared with the control.The seed weights at the three inflorescences did not differ significantly with those of the control.【Conclusions】Foliar application of paclobutrazol at squaring stage is effective in promoting the flower development,reducing the shedding,and benefit the setting of pods and seeds,especially in the basal and central inflorescences,and result in high seed yield at last.Foliar spraying paclobutrazol before and after squaring stage will not have the promotion effect. |
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| Keywords: | Chinese milk vetch paclobutrazol spraying stages seed setting characteristic |
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