WANG Heya,LUO Jingjing,MENG Ling,et al.Effects of Different Densities on the Plants Morphology and Yield of Edible Sunflower in Ta′e Reclamation Area[J].HEILONGJIANG AGRICULTURAL SCIENCES,2023,(03):14-19.[doi:10.11942/j.issn1002-2767.2023.03.0014]
不同种植密度对塔额垦区食葵品种植株形态及产量的影响
- Title:
- Effects of Different Densities on the Plants Morphology and Yield of Edible Sunflower in Ta′e Reclamation Area
- 文章编号:
- 3
- Keywords:
- edible sunflower; Ta′e Reclamation Area; density level; plant morphology; yield
- 文献标志码:
- A
- 摘要:
- 为筛选适宜塔额垦区的食葵品种和种植密度,在塔额垦区开展品种和密度二因素随机区组试验,主区设3个品种,分别为同庆5号、金禾8号、同辉32号,副区设4个密度水平,分别为M1(2.90万株·hm-2)、M2(333万株·hm-2)、M3(3.75万株·hm-2)和M4(4.16万株·hm-2),分析4个密度水平对不同品种产量及植株形态的影响。结果表明,品种和密度对单盘粒重、千粒重、结实率、花盘直径和产量均产生显著影响;3个食葵品种的产量均随着密度水平的提高呈现先增长后降低的趋势,且在3.33万株·hm-2(M2)处理下产量达到最高,同庆5号、金禾8号和同辉32号最高产量分别为4 027.53,4 063.26和3 956.19 kg·hm-2;株高和籽仁率均随着种植密度的增加而增加;粒宽、单盘粒重和千粒重均随种植密度的增加而降低,在M1种植密度(2.90万株·hm-2)下最大。综合来看,可以优选金禾8号和同辉32号在塔额垦区种植,最适种植密度为3.33万株·hm-2。
- Abstract:
- In order to screen edible sunflower varieties and planting density suiltable for Ta′e Reclamation Area, a two-factor random block test of varieties and density was carried out in Ta’e Reclamation Area.And 3 varieties were set up in the main area, namely Tongqing 5,Jinhe 8, Tonghui 32, and four density levels were set for the secondary area treatment, which were M1 treatment (29 000 plants·ha-1) and M2 treatment (33 300 plants· ha-1), M3 treatment (37 500 plants·ha-1) and M4 treatment (41 600 plants·ha-1). The effects of four density levels on yield and plant morphology of different varieties were analyzed. The experimental results showed that the variety and density had significant effects on the weight of a single disc, the weight of 1 000 grains, the setting rate, the diameter of the flower disc and the yield. The yields of the three sunflower cultivars showed a trend of first increasing and then decreasing with the increase of density level, and the yield reached the highest level under the treatment of 33 300 plants·ha-1(M2). The maximum yield of Tongqing 5, Jinhe 8 and Tonghui 32 were 4 027.53, 4 063.26 and 3 956.19 kg·ha-1 respectively.Plant height and seed kernel rate increased with the increase of the planting density. The grain width, single disc grain weight and 1 000-grain weight all decreased with the increase of planting density, and reached the maximum at M1 planting density (29 000 plants·ha-1). On the whole,Jinhe 8 and Tonghui 32 are preferentially selected for planting in Ta′e Reclamation Area,the optimal density is 33 300 plants·ha-1.
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备注/Memo
收稿日期:2022-11-03