| 不同外源激素对糜子成穗及产量的影响 |
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| 引用本文： | 杨军学,张尚沛,罗世武,王勇,张晓娟,王晓军,程炳文.不同外源激素对糜子成穗及产量的影响[J].作物杂志,2019,35(6):150-107. |
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| 作者姓名： | 杨军学 张尚沛 罗世武 王勇 张晓娟 王晓军 程炳文 |
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| 作者单位： | 宁夏农林科学院固原分院,756000,宁夏固原 |
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| 基金项目： | 宁夏回族自治区重点研发计划(2018BBF02005);国家现代农业产业技术体系(CARS-06-13.5-A18);宁夏小杂粮全产业链项目(EYS-16-08) |
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| 摘 要： | 研究不同种类外源激素对糜子成穗及产量的影响。用5种外源激素在糜子3~4叶期喷施,连续处理2次,喷清水为对照。记录糜子苗期基本苗数、拔节期总茎数、成熟期穗数等性状,用统计软件SPSS 17.0进行统计分析。结果表明,施用脱落酸（ABA）能够显著降低糜子的分蘖数,施用赤霉素（GA3）、吲哚乙酸（IAA）、矮壮素（CCC）也能减少糜子分蘖数,但是与对照差异不显著,施用多效唑（PP333）对糜子分蘖数没有明显影响;施用GA3、IAA、CCC能够增加分蘖穗数,而ABA、PP333降低分蘖穗数;各处理分蘖成穗率都较对照高,ABA处理分蘖成穗率为最高达到25.20%;ABA处理主茎穗占比较对照增加,分蘖穗占比降低;GA3、IAA、CCC处理主茎穗占比相对于对照降低,分蘖穗占比增加,PP333处理与对照相近;5种外源激素对糜子产量的影响差异显著,施用ABA产量最高,可能与主茎穗占比高和分蘖成穗率高有关系。在糜子3~4叶期喷施5种外源激素,对糜子有显著作用的是ABA,主要表现在ABA能够降低糜子分蘖数,保证了主茎的成穗数量,增加了分蘖成穗率,从而提高了糜子产量。
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| 关 键 词： | 糜子 外源激素 分蘖成穗率 主茎穗占比 产量 |
| 收稿时间： | 2019-06-05 |
Effects of Different Exogenous Hormones on the Spike Formation and Yield of Broom Corn Millet |
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| Yang Junxue,Zhang Shangpei,Luo Shiwu,Wang Yong,Zhang Xiaojuan,Wang Xiaojun,Cheng Bingwen.Effects of Different Exogenous Hormones on the Spike Formation and Yield of Broom Corn Millet[J].Crops,2019,35(6):150-107. |
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| Authors: | Yang Junxue Zhang Shangpei Luo Shiwu Wang Yong Zhang Xiaojuan Wang Xiaojun Cheng Bingwen |
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| Institution: | Guyuan Branch, Ningxia Academy of Agricultural and Forestry Sciences, Guyuan 756000, Ningxia, China |
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| Abstract: | To study the different kinds of exogenous hormones on the spike formation and yield of broom corn millet, five kinds of exogenous hormones were sprayed on the leaves of broom corn millet at 3-4-leaf stage by using twice consecutives prays with water as control. The number of seedlings at seedling stage, total number of stems at jointing stage and number of spikes at mature period of broom corn millet were investigated. The results showed that applying abscisic acid (ABA) could significantly reduce the tiller number of broom corn millet, while applying GA3, indoleacetic acid (IAA), chlorocholine chloride (CCC) could also reduce tillers but no significant difference with control, applying PP333 had no effects on tiller number. Applying GA3, IAA and CCC could increase the number of tiller spikes, while ABA and PP333 could reduce the number of tiller spikes. ABA treatment had the highest tiller spikes with a rate of 25.20%. ABA treatment could increase the ratio of main stem spikes, and reduce the ratio of tiller spikes compared with control. The ratio of main stem spikes under GA3, IAA, CCC treatments reduced and ratio of tiller spikes increased compared with control. PP333 treatment was similar with control; The influence of five exogenous hormones on the yield of broom corn millet was significant. ABA treatment had the highest yield, which was resulted from the high ratio of main stem formation spikes and the high tiller spikes ratio. Five exogenous hormones sprayed on broom corn millet at the 3-4-leaf stage, and ABA had significant effects, which could reduce the tiller quantities of broom corn millet, thus ensure the number of spikes on the main stem, increase tiller spikes rate and finally improve the yield of broom corn millet. |
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| Keywords: | Broom corn millet Exogenous hormone Tiller formation spikes ratio Ratio of main stem spike Yield |
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