Crops ›› 2017, Vol. 33 ›› Issue (4): 38-43.doi: 10.16035/j.issn.1001-7283.2017.04.007

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Preliminary Comparison on Characteristics and Quality of Direct Seeding Rice in Yinbei Irrigation Areas of Ningxia

Li Zongze1,Chen Yongwei1,Zhou Quanwen2,Ma Wenli1,Wang Sicheng3   

  1. 1 Agricultural and Animal Huxbandry Technology Extension and Service Center,Ningxia Agricultural Reclamation,Yinchuan 750024,Ningxia,China
    2 Ningxia Nanliang Farm,Yinchuan 750015,Ningxia,China
    3 Ningxia Agricultural Comprehensive Development Office,Yinchuan 750011,Ningxia,China
  • Received:2017-05-22 Revised:2017-06-15 Online:2017-08-15 Published:2018-08-26

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Abstract:

The purpose of this experiment was to screen good rice cultivars for direct seeding and promote the cultivar replacement and update in Yellow River irrigation region, The comparative experiment for nine direct seeding rice was carried out through interlaboratory comparison in Nanliang farm, and the growing stage, germination situation, tiller number, earing percentage, main economic character, yield and quality were recorded. The results showed that under the same management condition, the Ningjing 41 and Jingning 32 with proper growing period, high earing percentage, outstanding economic character, high yield and great potential productivity were fit for extension in this area. For G19, although the agronomic character was worse than control, the processing quality and appearance quality were superior to other test varieties, which had great promotional potential as good rice variety.

Key words: Rice, Cultivar, Economic character, Yinbei irrigation areas, Yield

Table 1

The germination potential and germination rate of tested cultivars of rice %"

品种Cultivar 发芽势
Germination potential		 发芽率
Germination rate
宁粳41 Ningjing 41 97.25Aab 93.75ABCbcd
宁粳50 Ningjing 50 95.75Ab 96.50ABCabc
京宁32 Jingning 32 98.00Aab 97.25ABab
富源4号Fuyuan No. 4 97.25Aab 92.50BCcd
G19 97.75Aab 97.00ABab
宁粳48 Ningjing 48 97.75Aab 96.00ABCabc
京宁29 Jingning 29 98.75Aa 99.50Aa
宁粳28 Ningjing 28 96.50Aab 96.00ABCabc
宁粳45 Ningjing 45 97.25Aab 90.75Cd

Table 2

The growing process of tested cultivars of rice"

品种
Cultivar		 初灌期
(月-日)
First watering date		 出苗期
(月-日)
Emergence
stage		 分蘖期
(月-日)
Tillering
stage		 拔节期
(月-日)
Elongation
stage		 孕穗期
(月-日)
Booting
stage		 抽穗期
(月-日)
Heading
stage		 齐穗期
(月-日)
Complete heading stage		 成熟期
(月-日)
Maturation
stage		 生育期
(d)
Growth
stage
宁粳41 Ningjing 41 5-01 5-15 6-12 7-09 7-16 7-30 8-02 9-28 147
宁粳50 Ningjing 50 5-01 5-15 6-15 7-13 7-18 8-01 8-04 9-27 146
京宁32 Jingning 32 5-01 5-15 6-14 7-11 7-17 8-04 8-09 9-27 146
富源4号 Fuyuan No. 4 5-01 5-15 6-12 7-09 7-15 7-30 8-01 9-27 146
G19 5-01 5-15 6-15 7-13 7-18 8-08 8-10 9-28 147
宁粳48 Ningjing 48 5-01 5-15 6-16 7-13 7-18 8-08 8-11 10-05 154
京宁29 Jingning 29 5-01 5-15 6-12 7-13 7-16 8-07 8-11 9-26 145
宁粳28 Ningjing 28 5-01 5-15 6-12 7-09 7-19 8-04 8-06 9-28 147
宁粳45 Ningjing 45 5-01 5-15 6-16 7-13 7-16 8-04 8-06 9-30 149

Fig.1

The changing trend of plant height about tested rice cultivars at different stage"

Fig.2

The tiller dynamic of tested rice cultivars"

Table 3

The economic characters and yields of tested rice cultivars"

品种
Cultivar		 有效穗数(万/hm2)
Effective panicles		 穗长(cm)
Panicle length		 穗粒数(粒/穗)
Grain number per spike		 结实率(%)
Seed setting rate		 千粒重(g)
Tthousand-seed weight		 实际产量(kg/hm2)
Active yield
宁粳41 Ningjing 41 438.00Aab 16.29CDc 88.07De 96.10Aa 24.95Cd 10 895
宁粳50 Ningjing 50 543.61Aa 17.72BCb 116.33Bbcd 90.80Abc 27.50ABa 7 725
京宁32 Jingning 32 561.39Aa 15.40Dc 116.90Bbcd 91.59Abc 24.75CDd 10 865
富源4号Fuyuan No. 4 468.01Aab 17.56BCb 89.60De 95.87Aa 25.04Cd 10 020
G19 346.84Ab 19.89Aa 132.20Bb 91.55Abc 22.70Dd 9 405
宁粳48 Ningjing 48 449.11Aab 19.24ABa 163.80Aa 80.14Bd 27.92Aa 11 495
京宁29 Jingning 29 469.12Aab 16.00Dc 110.17BCDcd 93.98Aab 25.51BCbcd 6 555
宁粳28 Ningjing 28 362.40Aab 18.86ABab 127.00Bbc 91.23Abc 26.85ABCab 10 021
宁粳45 Ningjing 45 444.67Aab 16.39CDc 103.90CDde 90.76Ac 26.63ABCab 10 080

Table 4

The processing quality and appearance quality of tested rice cultivars"

品种
Cultivar		 糙米率(%)
Brown rice rate		 精米率(%)
White rice rate		 整精米率(%)
Head rice rate		 垩白粒率(%)
Chalky rice rate		 垩白度(%)
Chalkiness degree		 黄粒米(%)
Yellow-coloured rice		 粒型(长宽比)
Grain type (ratio of
length to width)
宁粳41 Ningjing 41 83.40 76.70 66.30 31.70 13.40 0.20 1.50
宁粳50 Ningjing 50 83.40 75.50 52.80 9.30 5.70 0.10 2.00
京宁32 Jingning 32 83.90 77.00 67.80 44.60 19.60 0.10 1.60
富源4号 Fuyuan No. 4 84.90 77.70 68.70 17.40 6.60 0.00 1.50
G19 82.90 79.50 69.30 2.20 0.80 0.10 1.90
宁粳48 Ningjing 48 84.70 75.10 65.80 35.20 10.70 0.10 1.70
京宁29 Jingning 29 84.00 78.30 68.80 28.30 10.50 0.00 1.60
宁粳28 Ningjing 28 84.30 76.10 66.20 33.00 13.30 0.10 1.60
宁粳45 Ningjing 45 83.80 77.40 66.90 22.90 8.00 0.00 1.60
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