| 周 颖，郭荣发.低磷钾胁迫对甜、糯玉米生长
发育及产量的影响[J].广东农业科学,2016,43(6):38-42 |
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低磷钾胁迫对甜、糯玉米生长
发育及产量的影响 |
| Effects of low phosphorus and potassium stresson growth and yield of sweet，waxy corn |
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| DOI：10.16768/j.issn.1004-874X.2016.06.008 |
| 中文关键词: 玉米 磷 钾 产量 |
| 英文关键词: maize phosphorus potassium yield |
| 基金项目:广东省现代农业产业技术体系岗位专家项
目（1309092） |
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| 摘要点击次数: 1504 |
| 全文下载次数: 676 |
| 中文摘要: |
| 采用N1P0K0（只施氮肥）、N1P1K0（施氮磷不施钾肥）、N1P0K1（施氮钾肥不施磷肥）、N1P1K1（氮
磷钾肥均施）4 个处理，研究低磷钾胁迫对甜、糯玉米品种生长及产量的影响。结果表明，N1P1K0、N1P0K1 处理
较N1P1K1 处理，5 个品种的株高、地上部分干物重、产量及相关指标均有降低，N1P0K0 处理各品种的株高、茎
粗、干物重和产量与N1P1K1 比较差异均达显著水平，且品种之间差异较大。甜、糯玉米可以通过生理反应和改
变根系构型适应低营养养分水平。甜、糯玉米通过改变株高和地上部分干物质分配适应低营养水平。利用模糊
综合评判对5 个品种在产量及其构成因素进行综合分析，津科糯209、美玉香甜16 号、华美甜8 号耐低钾能
力高于华密和燕禾金2005，美玉香甜16 号、华密、燕禾金2005 耐低磷能力高于津科糯209、华美甜8 号。 |
| 英文摘要: |
| The effects of low phosphorus and potassium stress on growth and yield of different sweet，waxy corn
wre studied，phosphorus，potassium tolerance corn varieties wre selected，to provide a scientific basis for nutrition
and efficient breeding. The results showed that，plant height，above-ground dry weight，yield and related indicators of
five corn varieties were lower in treatments of N1P1K0，N1P0K1 compared with N1P1K1. While compared with N1P1K1，
the differences of plant height，stem diameter，dry weight and yield of all corn varieties in N1P0K0 reached a significant
level，and large differences were existed among varieties. Sweet，waxy corn can adapted to low nutrient levels through
physiological responses and altering root architecture. In this study， sweet，waxy corn accommodated the low nutrient
levels by changing the plant height and dry weight. Fuzzy comprehensive evaluation of yield and its components of five
varieties showed that Jingkenuo 209，Meiyuxiangtian No.16，Huameitian No.8 had higher low-potassium tolerance than
Huami and Yanhejing 2005. Meiyuxiangtian No.16，Huami，Yanhejing 2005 had higher low-phosphate tolerance than
Jingkenuo 209 and Huameitian No.8. |
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