| 摘要: |
| 为探究寒地水田区最佳的育秧模式，以优质粳稻品种‘龙粳31’为试验材料，设置超级大棚、标准大棚和传统小棚等3种棚式，分析不同棚式育秧对寒地水田区秧苗素质、水稻产量及构成因素的影响。结果表明:2种大棚的增温、控温效果明显优于传统小棚，适宜春季水稻幼苗生长；超级大棚所育秧苗的株高、根长、穗长和根重等秧苗素质数据均优于其他2种育秧棚式，传统小棚的弱苗率最高达24%，超级大棚的弱苗率最低为8%；2种大棚所育秧苗的生育期较传统小棚缩短1周时间；超级大棚、标准大棚秧苗有效穗数较传统小棚分别提高15.83%和4.80%；超级大棚、标准大棚秧苗全粒数分别较传统小棚高出3.52和1.47粒/穗；超级大棚、标准大棚秧苗每穗实粒数分别较传统小棚高出2.10和2.16粒/穗；标准大棚水稻结实率较传统小棚提高0.18%；超级大棚的产量较标准大棚和传统小棚分别提高3.21%和7.75%。 |
| 关键词: 棚式 育秧 寒地水稻 产量 产量构成要素 |
| DOI：10.11841/j.issn.1007-4333.2020.01.06 |
| 投稿时间：2019-03-09 |
| 基金项目:国家自然科学基金项目(41571167)；黑龙江省博士后科研启动金资助项目(LBH-Q17018) |
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| Effects of different shed raising seedlings on rice yield and its components in cold area |
|
DU Guoming,JIANG Yingying,LIU Zhao
|
| (School of Public Administration and Law, Northeast Agricultural University, Harbin 150030, China) |
| Abstract: |
| In order to explore the best seedling-raising model in cold paddy field, taking the high quality japonica rice variety ‘Longjing 31' as the experimental material, and seting up three kinds of raising seedling shed types, such as super shed, standard shed and traditional shed, the effects of different shed types on seedling quality, rice yield and composition factors in cold paddy area were explored. The results showed that the temperature control effect of the two kinds of bigger shed was obviously better than that of the traditional shed, which was suitable for rice growth. The plant height, root length, ear length, root weight and other seedling quality data in super shed were better than those in the other two types of shed. The weak seedling rate in the traditional shed was the highest, and the weak seedling rate in the super shed was the lowest, and the growth period of the seedlings in the two kinds of bigger shed was one week shorter than that in the traditional shed. The number of effective panicles in the super shed and the standard shed were increased by 15. 83% and 4. 80%, respectively. And the total grain number in the super shed and the standard shed were 3. 52 and 1. 47 grains/ear higher than those in the traditional shed respectively. The number of solid grains per panicle in the super shed and the standard shed was 2. 10 and 2. 16 grains/ear higher than that in the traditional shed, respectively; the seed setting rate of rice in the standard shed was 0. 18% higher than that in the traditional shed; the yield of super shed was 3. 21% and 7. 75% higher than that of standard shed and traditional shed, respectively. |
| Key words: shed raising seedlings rice in cold area rice yield yield components |
