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| 不同油菜品种(系)在严重干旱条件下越冬能力及保苗方法效果的比较 | |
| 引用本文： | 于澄宇,徐会善,王成军.不同油菜品种(系)在严重干旱条件下越冬能力及保苗方法效果的比较[J].西北农业学报,2010,19(10):65-69. |
| 作者姓名： | 于澄宇 徐会善 王成军 |
| 作者单位： | 1. 西北农林科技大学,农学院,陕西杨凌,712100 2. 咸阳市秦都区农林局土肥站,陕西咸阳,712000 3. 兴平市农业技术推广站,陕西兴平,713100 |
| 基金项目： | 中央高校基本科研业务费专项资助(QN2009008); 唐仲英育种基金(2009-51)资助 |
| 摘 要： | 2008-2009年冬春季在北方发生持续3个月严重干旱,利用此极端自然条件,对46个来自不同地域的油菜品种(系)的越冬存活率进行了调查,并比较了灌水、覆土、覆膜农艺措施对提高存活率的效果。结果发现,大部分源自长江中上游的材料抗冻耐旱性较差,而来自长江下游的扬油4、宁油14、沪油15越冬存活率较高,来自黄淮区的冬性材料秦油1号、秦油3号、Q7、Q9抗性很好;欧洲强冬性油菜的越冬存活率普遍很高,国外的春油菜如Sapphire、Elect等,虽然和长江中上游品种一样具有冬季抽薹现象,但抗旱耐冻性较强;多次灌水、覆土均可以提高油菜存活率,但保墒保苗效果均不如植株覆膜。该调查表明,来自不同地区的春油菜和冬油菜中都可筛选出耐冬季干旱的资源。 |
| 关 键 词： | 油菜 干旱 冷冻 抗性 |
Comparison of Overwintering between Various Rapeseed Cultivars during Long term Drought Stress |
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| YU Chengyu,XU Huishan and WANG Chengjun.Comparison of Overwintering between Various Rapeseed Cultivars during Long term Drought Stress[J].Acta Agriculturae Boreali-occidentalis Sinica,2010,19(10):65-69. | |
| Authors: | YU Chengyu XU Huishan and WANG Chengjun |
| Institution: | YU Chengyu1,XU Huishan2 and WANG Chengjun3 (1.College of Agronomy,Northwest A&F University,Yangling Shaanxi 712100,China,2.Soil and Fertilizer Station of Qindu District,Xianyang Shaanxi 712000,3.Agricultural Technology Extension Station of Xingping,Xingping Shaanxi 713100,China) |
| Abstract: | Drought and freezing stress are the main nature disasters for winter rapeseed cultivation in northwest China.In the winter of 2008-2009,a serious drought disaster without any rainfall for 82 days occurred in North China.We investigated the survival rate of 46 cultivars originated from China and abroad in the field.The results showed that,(i) most cultivars such as You 7,Zhongshuang 2,and Huashuang 4 from Yangtze Rive valley have poor tolerance to drought and freezing,but Yangyou 4,Ningyou 14,and Huyou 15 fr... |
| Keywords: | Rapeseed Drought Freezing Tolerance |
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