Crops ›› 2022, Vol. 38 ›› Issue (1): 220-226.doi: 10.16035/j.issn.1001-7283.2022.01.033

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Analysis on Main Traits of Fresh Corn Varieties Recently Approved in Yunnan Province

Feng Sufen1(), Liu Yuanjian2, Xu Ruiqi2, Zhang Wei2()   

  1. 1Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan, China
    2Zhaotong Academy of Agricultural Sciences, Zhaotong 657000, Yunnan, China
  • Received:2021-05-11 Revised:2021-06-28 Online:2022-02-15 Published:2022-02-16
  • Contact: Zhang Wei E-mail:fsf-1109@163.com;303916634@qq.com

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Abstract:

The growth period, yield, agronomic traits, quality traits and disease resistance of 18 fresh corn varieties approved in Yunnan province from 2016 to 2020 were compared. It provided a scientific basis for the selection of excellent varieties of fresh corn, the selection objectives and production practice of new varieties in Yunnan province. The results indicated that there were some differences in the characters of each variety. Yuntianyu 10 had the highest yield, but the disease resistance was extremely poor and must be prevented very early. The yield, agronomic traits and the taste of Guangliangtian 27, Jinsuitian 11 and Shuangtian 318 were good, the advantages of disease resistance were prominent. Two sweet corn varieties (Yuntianyu 9, Meiyutian 007), and two waxy corn varieties (Dayunuo 1, Tiannuo 302) had higher yield, moderate performance traits, and slightly poor disease resistance, so we need to choose the right season and place to plant and prevent disease in advance.

Key words: Yunnan province, Fresh corn, Yield, Agronomic traits, Quality traits, Disease resistance

Table 1

Growth period, agronomic characters and yield of fresh corn varieties approved in Yunnan province from 2016 to 2020"

类型
Type		 品种
Variety		 生育期Growth period (d) 株高
Plant
height		 穗位
Spike
position		 散粉期
Powder
phase		 穗行数
Row number
Per spike		 行粒数
Number of
grains per row		 产量
Yield
(kg/hm2)		 较对照增产
Higher than
CK (%)
正季
Regular season		 冬季
Winter
糯玉米 甜糯302 77.00 124.00 极矮 极矮 早到中 13.00 40.40 13 870.10 -7.70
Waxy corn 小糯2号 78.00 126.00 极矮 矮 早到中 14.40 37.50 11 206.00 -0.60
小糯3号 80.00 128.00 极矮到矮 矮 早到中 12.60 42.60 10 422.40 -7.50
大玉糯6号 80.00 127.00 极矮到矮 极矮到矮 早到中 17.60 42.40 13 198.50 17.10
沪紫黑糯1号 78.00 124.00 极矮到矮 矮到中 早到中 15.60 32.20 11 231.30 -0.30
黑糯1号 87.00 132.00 极矮到矮 中 中 14.00 36.50 10 688.10 -5.20
云糯4号 79.00 128.00 极矮到矮 矮 早到中 11.60 41.70 10 531.30 -6.50
大玉糯1号 88.00 – 矮 中 极早 – – 18 752.20 21.40
甜玉米 云甜玉9号 95.00 95.00 中到高 极矮 中 17.00 39.10 18 049.30 15.80
Sweet corn 云甜玉10号 80.00 120.00 矮 极矮 早 15.00 38.10 20 258.20 30.00**
海珍2号 80.00 126.00 极矮到矮 极矮 早到中 13.20 39.10 13 191.00 -12.20
珍甜8号 80.00 127.00 极矮 极矮到矮 早到中 12.60 34.90 12 698.50 -15.50
威育甜3389 81.00 127.00 极矮 极矮 早到中 13.20 42.10 13 176.10 -12.30
SBS902 100.00 114.00 极矮 极矮 – 16.00 26.00 13 206.00 13.00
广良甜27号 90.50 118.20 极矮到矮 极矮到矮 极早 15.60 – 15 801.50 28.30**
金穗甜11号 93.20 118.70 中到高 中到高 中到晚 16.40 – 15 062.70 22.30**
双甜318 80.00 123.00 极矮到矮 矮 极早 – – 14 865.70 -1.10
美玉甜007 79.00 127.00 极矮到矮 极矮到矮 早到中 17.20 41.20 17 006.00 13.10
平均值Average 83.65 122.64 – – – 14.67 38.11 14 067.49 2.59
变异系数
Coefficient of variation (%)		 8.21 6.85 – – – 12.61 12.15 20.96 533.09

Table 2

Quality index analysis of waxy corn varieties approved in Yunnan province from 2016 to 2020 %"

品种Variety 总淀粉Total starch 直链淀粉Amylose 支链淀粉/总淀粉Amylopectin/total starch 食味品质Eating quality
甜糯302 Tiannuo 302 61.85 3.38 94.50 2级
小糯2号Xiaonuo 2 63.17 4.38 93.10 2级
小糯3号Xiaonuo 3 65.22 3.22 95.10 1级
大玉糯6号Dayunuo 6 64.47 7.53 88.30 1级
沪紫黑糯1号Huziheinuo 1 68.98 6.34 90.80 2级
黑糯1号Heinuo 1 63.30 14.55 77.00 2级
云糯4号Yunnuo 4 62.30 5.57 91.10 2级
大玉糯1号Dayunuo 1 65.06 4.00 93.85 2级
平均值Average 64.29 6.38 89.23 –
变异系数Coefficient of variation 3.51 60.76 6.51 –

Table 3

Quality index analysis of sweet corn varieties approved in Yunnan province from 2016 to 2020 %"

品种
Variety		 可溶性总糖
Total soluble sugar		 还原糖
Reducing sugar		 干物质
Dry matter		 食味品质
Eating quality
云甜玉9号Yuntianyu 9 33.80 21.90 21.80 2级
云甜玉10号Yuntianyu 10 22.70 15.10 23.00 2级
海珍2号Haizhen 2 33.20 18.20 20.90 2级
珍甜8号Zhentian 8 33.20 18.50 19.50 2级
威育甜3389 Weiyutian 3389 15.30 12.60 22.70 2级
双甜318 Shuangtian 318 37.20 33.70 15.10 1级（正季）/2级（冬季）
美玉甜007 Meiyutian 007 32.70 15.50 22.00 2级
广良甜27号Guangliangtian 27 39.22 14.71 20.40 –
金穗甜11号Jinsuitian 11 34.45 18.07 23.80 –
SBS902 7.10 3.44 17.40 2级
平均值Average 28.88 17.17 20.66 –
变异系数Coefficient of variation 36.17 44.34 13.07 –

Table 4

Summary of disease resistance of fresh corn varieties approved in Yunnan province from 2016 to 2020"

品种
Variety		 大斑病
Leaf blight		 小斑病
Spotting		 纹枯病
Banded sclerotial blight		 锈病
Rust disease		 茎腐病
Stem rot		 灰斑病
Grey speck disease
甜糯302 Tiannuo 302 高抗 高抗 高感 感 感 高感
小糯2号Xiaonuo 2 高抗 高抗 感 感 感 高感
小糯3号Xiaonuo 3 抗 高抗 感 感 高感 高感
大玉糯6号Dayunuo 6 高抗 高抗 感 感 高感 高感
沪紫黑糯1号Huziheinuo 1 高抗 高抗 感 感 高感 高感
黑糯1号Heinuo 1 高抗 高抗 感 中抗 – 高感
云糯4号Yunnuo 4 高抗 高抗 感 感 感 感
大玉糯1号Dayunuo 1 高抗 高抗 高感 中抗 感 高感
云甜玉9号Yuntianyu 9 高抗 高抗 感 高感 抗 高感
云甜玉10号Yuntianyu 10 高抗 高抗 高感 感 感 高感
海珍2号Haizhen 2 高抗 高抗 感 感 高抗 高感
珍甜8号Zhentian 8 高抗 高抗 感 感 感 高感
威育甜3389 Weiyutian 3389 高抗 高抗 中抗 中抗 中抗 高感
双甜318 Shuangtian 318 高抗 高抗 中抗 中抗 中抗 高感
美玉甜007 Meiyutian 007 高抗 高抗 感 感 高抗 中抗
广良甜27号Guangliangtian 27 高抗 高抗 中抗 抗 高抗 抗
金穗甜11号Jinsuitian 11 抗 高抗 中抗 抗 高抗 中抗
SBS902 高感 抗 感 感 感 感
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