| 李强,贾东海,顾元国,王娟,苏君红,王志敏.不同滴灌频次下新疆春油菜根系生长及产量性状分析[J].干旱地区农业研究,2018,36(3):23~30 |
| 不同滴灌频次下新疆春油菜根系生长及产量性状分析 |
| Effects of drip irrigation frequencies on root growth and yield\|related traits of spring rapeseed in Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2018.03.04 |
| 中文关键词: 春油菜 滴灌 频次 根系生长 产量性状 |
| 英文关键词:spring rapeseed (brassica napus L.) drip irrigation frequencies root growth yield\|related traits |
| 基金项目:新疆自治区科技支疆项目（2016E02009）;国家油菜产业技术体系建设专项（CARS[CD*2]13） |
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| 中文摘要: |
| 为了探明新疆旱区不同滴灌频次下春油菜根系生长和产量性状，以新油17号为参试材料，设4个灌水频次（W1，W2，W3，W4）进行田间试验。结果表明：灌水频次由W4（苗期+现蕾期+花后10d+终花期）减少至W1（不灌水）时生育期相应缩短2～5d；不同滴灌频次对含水率影响W4>W3>W2>W1，由W1增加至W4对0～60cm土壤含水率影响较大、60～100cm土壤含水率影响较小，0～40cm根干重增加显著，根活力值相对较高，各器官干物质积累量也呈逐渐增加的趋势; 由W4减少至W1油菜产量由3026.5 kg·hm-2降至1219.1 kg·hm-2，农艺性状也相应降低，差异显著；W3处理油菜产量为2749.1 kg·hm-2与W4无显著差异性。综上，设置现蕾期和花后10d两次滴灌对产量性状及产量影响较小，是目前可行的节水高产的高效利用模式。 |
| 英文摘要: |
| In order to explore the root growth and yield-related traits of spring rapeseed under different drip irrigation frequencie in arid region in Xinjiang. Xinyou No.17 was chosen for experimental material. There were four frequencies of drip irrigation (W1, W2, W3 and W4) for field experiments. The results showed that the growth stage reduced 2~5 days since frequencies of drip irrigation from W4 (seedling, squaring, post-flowering 10 d and final flowering stage) reduced to W1 (no drip irrigation). Furthermore, the effect of different frequencies of drip irrigation on the moisture content ranked W4>W3>W2>W1. With the increased frequencies of drip irrigation from W1 to W4, the effect on moisture content of soil was more significant in 0~60 cm than those in 60~100 cm level. The dry weight of roots, root activity and dry matter accumulation had a growing trend in 0~40 cm level. Moreover, the yields of spring rapeseed reduced from 3026.5 kg·hm-2 to 1219.1 kg·hm-2 with the decreasd frequencies of drip irrigation frequencie from W4 to W1, while the main agronomic traits also declined with significant differences. In addition, there was no obvious yield difference between W3’s 2749.1 kg·hm-2 and W4. Taken together, it was little effect on yield-related traits and yields of spring rapeseed treating with drip irrigations at squaring stage and 10 d post-flowering. This could be a viable effective model for water-saving and high\|yield spring rapeseed production. |
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