Crops ›› 2019, Vol. 35 ›› Issue (6): 71-75.doi: 10.16035/j.issn.1001-7283.2019.06.011

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Effects of Plant Spacing on Growth and Yield of Oil Sunflower under Mechanized Cultivation Conditions

Li Jiming1,Li Aiguo1,Jia Yingquan2,Song Congmin1,Liu Guihua1,Xu Guizhen3,Li Heping1   

  1. 1Dryland Farming Research Institute, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory for Crop Drought Resistance Research of Hebei Province, Hengshui 053000, Hebei, China
    2Hengshui Taocheng Agricultural and Rural Bureau, Hengshui 053000, Hebei, China
    3Institute of Grain and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050035, Hebei, China
  • Received:2019-05-06 Revised:2019-09-27 Online:2019-12-15 Published:2019-12-11
  • Contact: Heping Li

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Abstract:

In order to determine suitable plant spacing allocation for high yield and high efficiency mechanical production of oil sunflower in low plain area of Hebei Province. Two widely planted varieties, Xinkui 20 and SD567, were planted to develop under wide-narrow row (70cm+50cm), which was suitable for mechanized and simplified cultivation, with plant spaces of 24cm, 26cm, 28cm, 30cm, 32cm and 35cm, respectively. The results showed that the plant space of 30cm produced the highest dry matter accumulation, leaf area per plant and yield. Under the cultivation of wide-narrow row (70cm+50cm) and plant space of 30cm, the water, fertilizer and light can be maximized to utilize and the maximum yield can be obtained, which is suitable for the current production of oil sunflower in the low plain area of Hebei Province.

Key words: Plant spacing, Oil sunflower, Dry matter, Leaf area, Yield

Table 1

Experimental design"

处理Treatment 宽行Wide row (cm) 窄行Narrow row (cm) 株距Plant spacing (cm) 密度(株/hm2) Density (plants/hm2) 覆膜Film mulching
T1 70 50 24 69 479 覆膜
T2 70 50 26 64 134 覆膜
T3 70 50 28 59 554 覆膜
T4 70 50 30 55 583 覆膜
T5 70 50 32 52 109 覆膜
T6 70 50 35 47 642 覆膜

Table 2

Effects of different plant spacing on leaf area per plant at different growth stages cm2/株 cm2/plant"

品种Variety 处理Treatment 苗期Seedling stage 现蕾期Budding stage 开花期Flowering stage 灌浆期Grain filling stage 成熟期Mature stage
新葵20 T1 70.97bc 666.58de 2 413.14bc 2 506.70c 1 714.99cd
Xinkui 20 T2 72.66bc 706.80cd 2 536.38bc 2 716.42b 1 763.01cd
T3 77.06ab 744.25bc 2 575.60b 2 679.66b 1 814.13bc
T4 81.01a 827.46a 2 750.51a 2 957.65a 2 141.70a
T5 66.82cd 658.24de 2 358.62c 2 567.36bc 1 654.83cd
T6 64.10d 632.35e 2 140.91d 2 420.80c 1 602.66d
SD567 T1 78.87ab 684.91bc 2 286.37c 2 576.70cd 1 746.48c
T2 81.36a 714.64b 2 499.90bc 2 733.49b 1 988.57b
T3 73.39bc 718.53b 2 662.87b 2 632.60bc 1 684.22cd
T4 82.80a 820.81a 2 889.71a 3 053.82a 2 330.56a
T5 65.76e 644.49cf 2 292.70c 2 461.82d 1 518.73de
T6 63.68e 609.28cd 1 960.63d 2 245.48e 1 487.58e

Fig.1

Variation trend of leaf area index of Xinkui 20 under different plant spacing"

Fig.2

Variation trend of leaf area index of SD567 under different plant spacing"

Table 3

Effects of different plant spacing on dry matter accumulation per plant g/株 g/plant"

品种Variety 处理Treatment 苗期Seedling stage 现蕾期Budding stage 开花期Flowering stage 灌浆期Grain filling stage 成熟期Mature stage
新葵20 T1 46.30d 125.47e 470.67d 561.60e 593.77e
Xinkui 20 T2 49.07c 142.47d 497.33c 588.63c 611.87d
T3 54.63b 174.17b 524.57b 607.40b 649.70b
T4 58.87a 193.73a 546.43a 640.70a 699.57a
T5 55.20b 176.87b 519.57b 611.27b 655.90b
T6 53.47b 154.60c 515.10b 587.27c 634.83c
SD567 T1 43.27f 119.87d 411.70e 524.40f 582.97e
T2 46.60e 140.13c 425.60d 570.27e 619.23d
T3 51.53d 157.40b 477.33b 593.80d 676.73b
T4 65.53a 180.53a 511.40a 648.30a 739.97a
T5 62.23b 161.77b 476.60b 612.67bc 681.00b
T6 59.70c 157.43b 457.50c 599.70cd 652.43c

Table 4

Effects of different plant spacing on yield"

品种
Variety		 处理
Treatment		 盘径(cm)
Disk diameter		 饱粒数(粒/盘)
Number of plump grain (grains/disk)		 秕粒数(粒/盘)
Number of blighted grains (grains/disk)		 百粒重(g)
100-grain weight		 小区产量(kg)
Plot yield
新葵20 T1 16.7 876 115 4.12c 14.76d
Xinkui 20 T2 18.4 1 034 68 4.47ab 17.47b
T3 20.7 1 210 154 4.35b 18.47ab
T4 20.8 1 287 148 4.69a 19.56a
T5 24.6 1 263 129 4.76a 18.46ab
T6 23.1 1 196 169 4.81a 16.17c
SD567 T1 18.1 939 193 4.36c 16.74c
T2 17.9 1 113 113 4.29c 18.05bc
T3 20.3 1 320 87 4.65ab 21.54ab
T4 22.9 1 384 107 4.92a 22.27a
T5 26.5 1 308 136 4.97a 19.96b
T6 26.3 1 196 122 4.83a 16.23d
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