HAO Yu-bo,YU Yang,QIAN Chun-rong,et al.Effects of Chemical Regulator on Anti-lodging Characters and Yield Formation of Spring Maize of Northeast China[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(10):1-3.[doi:10.11942/j.issn1002-2767.2017.10.0001]
化控剂对东北春玉米抗倒伏性能及产量形成的影响
- Title:
- Effects of Chemical Regulator on Anti-lodging Characters and Yield Formation of Spring Maize of Northeast China
- 文章编号:
- 1002-2767(2017)10-0001-03
- Keywords:
- maize; chemical regulator; lodging; yield; stalk; aerial roots
- 分类号:
- S513
- 文献标志码:
- A
- 摘要:
- 倒伏一直以来都是制约东北黑土区玉米高产稳产的重要因素。为了进一步提高玉米抗倒伏能力,以先玉335为供试材料,在玉米大喇叭口期进行化控剂调控试验,探讨化控剂对玉米茎秆和根系抗倒性能的影响。结果表明:化控剂处理显著降低了株高、穗位高、植株下部节间长,显著提高了玉米气生根层数、总根条数、节间密度和折断力,因而化控剂的使用能明显增加玉米抗茎折和根系倒伏的能力。
- Abstract:
- The loding has always been an important factor restricting the high and stable yield of maize in the black soil area of northeast China.In order to improve the anti-lodging ability of maize,takiing Xianyu 335 as the test material,chemical regulator was used at bell stage in maize,the effects of chemical regulator on anti-lodging characters of stalk and root were analyzed.The results showed that the plant height,ear position and length of lower internodes were reduced,while layers and total numbers of aerial root,density and breaking strength of internodes were improved.The use of chemical regulator could improve anti-lodging abilities of stalk and root significantly.
参考文献/References:
[1]Tollenaar M,Lee E A.Yield potential,yield stability and stresstolerance in maize[J].Field Crops Res,2002,88:161-169.
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备注/Memo
收稿日期:2017-08-09