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作物学报

作物学报 ›› 2018, Vol. 44 ›› Issue (04): 601-613.doi: 10.3724/SP.J.1006.2018.00601

• 耕作栽培·生理生化 • 上一篇    下一篇

四川盆地东南部气象因子对杂交中稻产量的影响

徐富贤(), 周兴兵, 张林, 蒋鹏, 刘茂, 朱永川, 郭晓艺, 熊洪   

  1. 四川省农业科学院水稻高粱研究所 / 农业部西南水稻生物学与遗传育种重点实验室, 四川德阳618000
  • 收稿日期:2017-08-11 接受日期:2018-01-08 出版日期:2018-01-26 网络出版日期:2018-01-26
  • 作者简介:

    xu6501@163.com

  • 基金资助:
    本研究由国家现代农业产业技术体系建设专项(CARS-01-25), 国家公益性行业(农业)专项(20120302), 国家粮食丰产科技工程(2013BAD07B13-05)和四川省财政基因工程项目资助

Effects of Climatic Factors in the Southeast of Sichuan Basin on Grain Yield of Mid-season Hybrid Rice

Fu-Xian XU(), Xing-Bing ZHOU, Lin ZHANG, Peng JIANG, Mao LIU, Yong-Chuan ZHU, Xiao-Yi GUO, Hong XIONG   

  1. Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences / Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture, Deyang 618000, Sichuan, China
  • Received:2017-08-11 Accepted:2018-01-08 Published:2018-01-26 Published online:2018-01-26
  • Supported by:
    This study was supported by the China Agriculture Research System (CARS-01-25), the Special Fund for Agro-scientific Research in the Public Interest (20120302), the National Grain Bumper Science and Technology Project (2013BAD07B13-05), and the Sichuan Financial Genetic Engineering Project.

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摘要：

为了探明四川盆地东南部气象因子对杂交中稻产量的影响, 并提出相应的丰产技术对策。2015年和2016年, 以2个杂交中稻品种II优602和旌优127为材料, 在5个播种期和高氮低密与低氮高密2种栽培方式下, 研究了四川盆地东南部气象因子对杂交中稻产量的影响。结果表明, 随着播种期推迟, 平均全生育期从148.13 d逐渐缩短到123.25 d, 缩短了14.77%; 气象因子对水稻全生育期的影响主要在营养生长期, 生殖生长期受其影响较小。年度间、栽培方式间、品种间稻谷产量差异均不显著; 随着播种期推迟, 稻谷产量呈下降趋势, 从3月5日的8507.76 kg hm-2下降到5月24日的6251.01 kg hm-2, 降低了26.53%。播种-移栽、移栽-拔节、营养生长的日数和全生育期日数分别与穗粒数和产量呈极显著正相关。气象因子对产量的影响在不同年份和不同品种间的表现不一致: 优质稻旌优127 2015年的结实率、千粒重和产量分别与齐穗-成熟的日平均气温呈极显著正相关, 分别与拔节-齐穗的日照时数呈显著负相关; 2016年的穗粒数、产量分别与播种—移栽日最高气温、移栽—拔节的日平均气温呈极显著负相关。高产品种II优602, 2015年的有效穗、千粒重和产量分别与移栽—拔节的降雨量呈显著或极显著负相关, 2016年的穗粒数和产量分别与移栽-拔节的日最高气温呈显著或极显著负相关, 结实率、千粒重和产量分别与拔节-齐穗的日平均相对湿度呈显著正相关。生产上一季中稻模式的最佳播种期在3月5日至3月25日, 而中稻-再生稻模式则在3月5日至3月25日期间尽可能早播, 以利于提高再生稻安全齐穗保证率。

关键词: 四川盆地东南部, 气象因子, 杂交中稻, 产量

Abstract:

The aim of this study was to clarify the key climatic factors influencing rice yield, and propose the technical measures for rice yield increase in southeast Sichuan Basin. A field experiment with two hybrid rice cultivars, II you 602 and Jingyou 127, was conducted to study the effect of climatic factors on yield increasing in water-logged paddy field of this area in 2015 and 2016. In each year, the two cultivars were grown in two combinations (high nitrogen rate with low plant density, HNLD; low nitrogen rate with high plant density, LNHD), respectively, on five sowing dates. As the sowing date delayed, the mean whole growth duration of hybrid rice was shortened by 14.77%, from 148.13 d to 123.25 d. Vegetative period of hybrid rice, rather than the reproductive period, was mainly affected by climatic factors. Grain yield of hybrid rice was not significantly affected (differentiated) by year, cultural method and cultivar. Grain yield of hybrid rice dropped from 8507.76 kg ha-1 on March 5 to 6251.01 kg ha-1 on May 24. The average grain yield of hybrid rice across five sowing dates was reduced by 26.53%. Growth duration from sowing (SO) to transplanting (TR), TR to jointing stage (JS), number of days in vegetative period and whole growth duration, respectively, had a significantly positive correlation with spikelets per panicle and grain yield. The effects of climatic factors on grain yield of hybrid rice varied with years and cultivars. For good quality rice Jingyou 127, percentage of filled grain, thousand-grain weight and grain yield, respectively, were significantly and positively correlated with average diurnal temperature from full heading (HD) to maturity (MA), while significantly and negatively correlated with sunshine hours from JS to HD in 2015; spikelets per panicle and grain yield, respectively, had a significantly negative correlation with average maximum temperature from SO to TR and average diurnal temperature from TR to JS in 2016. For high-yielding cultivar II you 602, panicles per m2, thousand-grain weight and grain yield, respectively, were significantly or extremely significantly and negatively correlated with precipitation from TR to JS in 2015; spikelets per panicle and grain yield, respectively, were significantly or extremely significantly and negatively correlated with daily maximum temperature from TR to JS, while percentage of filled grain, thousand-grain weight and grain yield, respectively, were significantly and positively correlated with average relative humidity from JS to HD in 2016. In conclusion, the optimum sowing dates in southeast Sichuan Basin are from March 5 to March 25 for single mid-season hybrid rice. Meanwhile, sowing as early as possible during the optimum sowing period will be more beneficial to the improvement of guarantee rate for safe full heading of ratoon rice in main crop-ratooning rice system.

Key words: Southeast Sichuan Basin, climatic factor, mid-season hybrid rice, grain yield

表1

试验土壤化学特性"

年度
Year		 pH 有机质
Organic
fertilizer (%)		 全氮
Total N
(%)		 全磷
Total P
(%)		 全钾
Total K
(%)		 有效氮
Available N
(mg kg-1)		 有效磷
Available P
(mg kg-1)		 有效钾
Available K
(mg kg-1)
2015 6.42 2.034 0.148 0.089 1.104 127.6 89.4 153.2
2016 6.68 2.215 0.151 0.074 1.152 147.9 84.7 173.4

表2

各实验处理下水稻关键生育期的日期（月/日）"

表3

各试验处理水稻的生育历期比较"

处理
Treatment		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 营养生长
VG		 生殖生长
RG		 全生育期
WGP
最小值 Min. 20.0 32.0 26.0 24.0 53.0 53.0 120.0
最大值Max. 35.0 61.0 39.0 35.0 94.0 68.0 154.0
平均值 Mean 26.9 44.7 32.0 29.8 71.6 61.8 133.3
CV (%) 20.5 17.6 8.9 9.4 15.0 6.4 7.7
年度
Year		 2015 27.8 a 43.9 b 31.5 b 30.6 a 71.7 a 62.0 a 133.7 a
2016 26.0 b 45.4 a 32.6 a 28.9 b 71.4 a 61.5 b 132.9 b
播期
Sowing time
(month/day)		 3/5 34.0 a 50.0 a 34.1 a 30.0 b 84.0 a 64.1 b 148.1 a
3/25 28.5 c 51.3 a 31.6 bc 29.6 b 79.8 b 61.3 c 141.0 b
4/20 29.5 b 40.6 c 32.0 b 27.1 c 70.1 c 59.1 d 129.3 c
5/4 22.0 d 44.3 b 29.8 c 28.9 b 66.3 d 58.6 d 124.9 d
5/24 20.5 e 37.1 d 32.5 ab 33.1 a 57.6 e 65.6 a 123.3 e
栽培方式
Cultivation mode		 高氮低密 HNLD 26.9 a 44.7 a 32.1 a 29.5 b 71.6 a 61.6 a 133.2 a
低氮高密 LNHD 26.9 a 44.6 a 31.9 a 30.0 a 71.5 a 61.9 a 133.5 a
品种
Variety		 旌优127 Jingyou 127 26.9 a 41.5 b 31.8 a 30.5 a 68.4 b 62.3 a 130.6 b
II优602 II you 602 26.9 a 47.9 a 32.2 a 29.5 b 74.8 a 61.3 b 136.0 a

表4

水稻全生育期日数(Y)与各生育阶段日数(X)的回归分析"

品种
Variety		 年度
Year		 回归方程
Regression equation		 F值
F-value		 R2 偏相关
Partial correlation		 t检验值
t-test value
旌优127
Jingyou 127		 2015 Y = 35.01+0.87X1+1.10X2+0.88X4 213.5** 0.9907 r(Y, X1)=0.9665 9.23**
r(Y, X2)=0.9555 7.93**
r(Y, X4)=0.6797 2.27
2016 Y = 0.52+1.79X1+0.81X2+1.67X4 348.2** 0.9943 r(Y, X1)=0.9955 25.59**
r(Y, X2)=0.9918 18.97**
r(Y, X4)=0.9869 14.97**
II优602
II you 602		 2015 Y = 42.02+0.58X1+1.19X2+0.68X3 337.6** 0.9941 r(Y, X1)=0.9513 7.56**
r(Y, X2)=0.9842 13.60**
r(Y, X3)=0.6413 2.05
2016 Y = 36.21+1.01X1+0.76X2+1.14X3 28.94** 0.9354 r(Y, X1)=0.8603 4.13**
r(Y, X2)=0.9207 5.78**
r(Y, X3)=0.6461 2.07

表5

各试验处理的稻谷产量及其穗粒结构比较"

处理
Treatment		 最高苗
The highest seedling
(×104 hm-2)		 有效穗
Productive panicle
(×104 hm-2)		 穗粒数
Spikelets per panicle		 结实率
Seed setting rate (%)		 千粒重
1000-grain weight (g)		 产量
Yield
(kg hm-2)
最小值Min. 227.40 150.60 141.02 74.32 26.16 5578.50
最大值Max. 357.60 260.40 193.23 90.06 31.03 9193.65
平均值Mean 275.87 207.33 159.45 83.13 28.82 7515.55
CV (%) 13.26 13.21 7.92 5.68 4.44 13.86
年度
Year		 2015 277.97 a 201.03 b 161.41 a 83.93 a 29.12 a 7487.49 a
2016 273.78 a 213.63 a 157.49 b 82.33 a 28.53 b 7543.60 a
播期
Sowing time
(month/day)		 3/5 287.03 ab 214.48 ab 171.44 a 83.57 a 29.24 a 8507.76 a
3/25 300.96 a 222.04 a 163.85 ab 84.79 a 29.08 a 8481.69 a
4/20 267.21 bc 207.84 b 158.00 bc 83.60 a 28.69 ab 7480.31 b
5/4 254.93 c 196.86 c 154.22 cd 82.90 a 28.80 ab 6856.97 bc
5/24 269.25 bc 195.43 c 149.76 d 80.80 a 28.31 b 6251.01 c
栽培方式
Cultivation mode		 高氮低密 HNLD 252.17 b 193.95 b 166.97 a 83.34 a 28.79 a 7410.19 a
低氮高密 LNHD 299.57 a 220.71 a 151.94 b 82.93 a 28.86 a 7620.91 a
品种
Variety		 旌优127 Jingyou 127 291.99 a 224.99 a 155.30 b 79.01 b 27.73 b 7356.68 a
II优602 II you 602 259.76 b 189.68 b 163.61 a 87.25 a 29.92 a 7674.41 a

表6

水稻产量(Y)与稻粒结构(X)的回归分析"

品种
Variety		 年度
Year		 回归方程
Regression equation		 F值
F-value		 R2 偏相关
Partial correlation		 t检验值
t-test value
旌优127
Jingyou 127		 2015 Y = -18716.16+36.97X2+47.66X3+131.57X4 40.75** 0.9532 r(Y, X1)=0.9242 5.93**
r(Y, X3)=0.8625 4.17**
r(Y, X4)=0.6766 2.25
2016 Y = -743.40+1.72X1+5.4X2 38.20** 0.9161 r(Y, X1)=0.9090 5.77**
r(Y, X2)=0.9323 6.82**
II优602
II you 602		 2015 Y = -10968.48+49.33X1+57.61X2 240.0** 0.9856 r(Y, X1)=0.9889 17.58**
r(Y, X2)=0.9828 14.06**
2016 Y = -1213.12+2.84X1+3.23X2+7.50X3 70.82** 0.9725 r(Y, X1)=0.9756 10.87**
r(Y, X2)=0.9637 8.84**
r(Y, X3)=0.8176 3.48**

表7

产量及其穗粒结构与各生育阶段日数的相关系数"

性状
Trait		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 营养生长
VG		 生殖生长
RG		 全生育期
WGP
2015
最高苗Highest seedling 0.302 -0.089 -0.050 0.345 0.093 0.267 0.167
有效穗Productive panicle 0.306 -0.316 -0.038 0.343 -0.054 0.271 0.004
穗粒数Spikelets per panicle 0.538* 0.584** -0.374 -0.306 0.653** -0.469* 0.619**
结实率Seed setting rate 0.321 0.632** -0.077 -0.636** 0.575** -0.585** 0.504*
千粒重1000-grain weight 0.364 0.792** -0.242 -0.597** 0.702** -0.643** 0.632**
产量Yield 0.875** 0.430* -0.408 -0.200 0.720** -0.397 0.711**
2016
最高苗Highest seedling 0.142 0.209 0.190 0.212 0.244 0.271 0.366
有效穗Productive panicle 0.301 0.060 0.260 0.067 0.204 0.232 0.309
穗粒数Spikelets per panicle 0.576** 0.445* 0.415 -0.375 0.662** 0.070 0.669**
结实率Seed setting rate 0.127 0.419 0.125 -0.306 0.408 -0.099 0.344
千粒重1000-grain weight 0.020 0.342 0.145 -0.074 0.289 0.060 0.307
产量Yield 0.635** 0.590** 0.557** -0.321 0.811** 0.208 0.879**

表8

2个品种在不同播种期下各生育阶段的气候因素表现(2015)"

气候因素
Climatic
factor		 播种期
Sowing time
(month/day)		 旌优127 Jingyou 127 II优602 II you 602
播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA
日最高气温
Daily maximum temperature
(°C)		 X1 X2 X3 X4 X1 X2 X3 X4
3/5 22.55 26.09 28.71 31.59 22.55 26.40 29.39 33.45
3/25 24.75 28.10 29.15 33.77 24.75 28.37 30.86 32.94
4/20 27.43 28.87 31.45 31.73 27.43 28.92 32.83 30.14
5/4 27.64 29.43 32.16 30.31 27.64 29.13 33.13 30.21
5/24 28.40 30.74 32.13 27.69 28.40 31.03 31.42 26.75
日最低气温
Daily minimum temperature
(°C)		 X5 X6 X7 X8 X5 X6 X7 X8
3/5 13.98 17.52 21.98 23.58 13.98 18.39 22.91 23.93
3/25 15.86 20.11 22.65 24.12 15.86 20.56 23.30 24.29
4/20 18.62 22.03 23.40 23.74 18.62 22.64 23.72 22.98
5/4 19.70 22.64 23.71 22.98 19.70 22.34 23.89 23.16
5/24 21.50 23.20 23.95 21.80 21.50 23.29 23.67 21.28
日平均气温
Average daily temperature
(°C)		 X9 X10 X11 X12 X9 X10 X11 X12
3/5 17.76 21.22 24.66 26.92 17.76 21.81 25.46 27.95
3/25 19.55 23.43 25.23 28.16 19.55 23.76 26.42 27.85
4/20 22.35 24.76 27.53 26.90 22.35 24.95 28.26 25.70
5/4 23.11 25.33 28.14 25.81 23.11 25.08 28.55 25.83
5/24 24.26 26.31 27.95 23.99 24.26 26.83 26.92 23.36
气候因素
Climatic
factor		 播种期
Sowing time
(month/day)		 旌优127 Jingyou 127 II优602 II you 602
播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA
降水量
Amount of precipitation
(mm)		 X13 X14 X15 X16 X13 X14 X15 X16
3/5 73.6 103.9 70.5 380.5 73.6 125.5 151.6 279.1
3/25 86.6 114.7 159.0 298.6 86.6 124.4 280.9 209.1
4/20 60.7 99.5 378.9 150.5 60.7 175.3 308.0 161.5
5/4 65.4 133.9 317.7 161.5 65.4 174.1 354.4 167.9
5/24 45.3 286.2 253.9 283.3 45.3 405.7 166.4 275.0
日平均相
对湿度
Daily average relative
humidity (%)		 X17 X18 X19 X20 X17 X18 X19 X20
3/5 76.2 72.8 76.3 83.0 76.2 76.0 85.0 79.0
3/25 75.7 77.5 85.2 75.6 75.7 78.4 83.0 78.7
4/20 70.3 83.4 79.0 80.2 70.3 83.8 78.9 81.7
5/4 75.2 83.8 79.2 81.3 75.2 84.0 75.3 84.3
5/24 82.5 82.3 78.7 86.3 82.5 82.3 80.3 89.0
日照时数
Duration of sunshine (h)		 X21 X22 X23 X24 X21 X22 X23 X24
3/5 128.3 262.0 83.5 208.6 128.3 295.6 91.1 211.3
3/25 171.5 164.6 101.6 226.8 171.5 200.1 161.5 172.2
4/20 163.3 103.8 182.5 159.5 163.3 127.2 221.9 127.4
5/4 99.6 106.0 227.2 138.3 99.6 143.0 235.8 107.2
5/24 62.1 180.9 196.1 171.1 62.1 221.0 182.2 145.8

表9

2个品种在不同播种期下的气候因素表现(2016)"

气候因素
Climatic factor		 播种期
Sowing time
(month/day)		 旌优127 Jingyou 127 II优602 II you 602
播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA
日最高气温
Daily maximum temperature (°C)		 X1 X2 X3 X4 X1 X2 X3 X4
3/5 20.73 25.55 29.53 33.50 20.73 25.48 30.31 33.79
3/25 23.23 26.94 31.47 33.57 23.23 27.16 31.78 34.15
4/20 25.94 28.84 33.30 34.66 25.94 28.94 33.63 34.22
5/4 26.93 31.19 33.42 33.87 26.93 31.27 33.66 34.22
5/24 29.16 31.54 34.23 29.04 29.16 31.76 34.58 27.83
日最低气温
Daily minimum temperature (°C)		 X5 X6 X7 X8 X5 X6 X7 X8
3/5 13.64 17.63 21.62 24.67 13.64 17.67 22.18 24.67
3/25 15.28 18.97 23.48 24.67 15.28 19.20 23.56 24.99
4/20 17.90 21.34 24.33 25.68 17.90 21.32 24.92 25.67
5/4 18.66 22.45 24.77 25.13 18.66 22.56 22.81 24.44
5/24 20.89 23.33 23.53 22.41 20.89 23.13 24.13 21.80
气候因素
Climatic factor		 播种期
Sowing time
(month/day)		 旌优127 Jingyou 127 II优602 II you 602
播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA		 播种-移栽
STTT		 移栽-拔节
TTJS		 拔节-齐穗
JSFS		 齐穗-成熟
FSA
日平均气温
Average daily temperature (°C)		 X9 X10 X11 X12 X9 X10 X11 X12
3/5 16.49 20.96 25.01 28.53 16.49 20.89 25.64 28.67
3/25 18.46 22.38 26.94 28.32 18.46 22.87 27.05 30.83
4/20 21.31 24.55 28.13 29.39 21.31 24.53 28.41 29.11
5/4 22.09 25.98 28.30 28.68 22.09 26.06 28.43 27.44
5/24 24.32 26.82 28.84 25.12 24.32 26.97 29.21 24.02
降水量
Amount of precipitation (mm)		 X13 X14 X15 X16 X13 X14 X15 X16
3/5 104.7 211.5 324.3 309.8 104.7 217.6 319.2 358.2
3/25 76.8 258.8 374.1 477.9 76.8 266.6 512.7 223.5
4/20 144.2 282.5 371.1 196.4 144.2 346.8 419.5 95.2
5/4 125.3 336.6 410.8 89.2 125.3 502.1 308.2 97.3
5/24 93.9 414.3 322.2 183.4 93.9 513.0 223.6 196.0
日平均相
对湿度
Daily average relative humidity (%)		 X17 X18 X19 X20 X17 X18 X19 X20
3/5 81.08 81.84 82.54 81.48 81.08 81.94 82.30 81.18
3/25 81.68 81.07 84.23 82.88 81.68 81.06 84.97 81.82
4/20 81.24 82.35 82.31 79.12 81.24 82.91 82.24 77.19
5/4 80.35 81.38 83.15 76.74 80.35 82.53 82.57 79.15
5/24 78.44 84.13 81.00 84.26 78.44 84.06 79.78 86.69
日照时数
Duration of sunshine (h)		 X21 X22 X23 X24 X21 X22 X23 X24
3/5 108.3 180.8 189.1 218.0 108.3 190.7 206.4 212.9
3/25 97.5 246.8 166.9 241.1 97.5 270.2 175.9 230.8
4/20 127.8 180.8 232.2 206.7 127.8 195.0 253.4 195.4
5/4 93.0 259.5 181.0 200.8 93.0 274.9 214.2 153.1
5/24 119.9 177.4 265.2 121.2 119.9 200.6 273.4 93.3

表10

气象因素(X)对产量(Y)影响的回归分析"

品种
Variety		 年度
Year		 回归方程
Regression equation		 F值
F-value		 R2 偏相关
Partial correlation		 t检验值
t-test value
旌优127
Jingyou 127		 2015 Y = -4516.29+485.8494X12+1.9389X15-6.9941X23 166666.4** 1.0000 r(Y, X12)=1.0000 402.59**
r(Y, X15)=0.9999 85.75**
r(Y, X23)= -0.9999 123.55**
2016 Y =15495.71+23.6451X1-351.6421X10-1.4708X15 71268.3** 1.0000 r(Y, X1)=0.9845 5.60**
r(Y, X10)= -0.9999 61.21**
r(Y, X15)= -0.9993 26.69**
II优602
II you 602		 2015 Y =5285.69-24.7829X14+76.7899X19 616.11** 0.9992 r(Y, X14)=0.9992 9.9947**
r(Y, X19)=0.9778 4.6608*
2016 Y =6493.22-326.01115X2-18.92X4+140.4693X19 666666.4** 1.0000 r(Y, X2)= -1.00000 634.20**
r(Y, X4)= -0.99939 28.62**
r(Y, X19)=0.99997 136.95**

表11

产量穗粒结构与关键生育阶段气象因子(X)间的相关系数"

品种
Variety		 年度
Year		 气象因子
Climatic factor		 最高苗
The highest seedling		 有效穗
Productive panicle		 穗粒数
Spikelets per panicle		 结实率
Seed
setting rate		 千粒重
1000-grain weight		 产量
Yield
旌优127
Jingyou 127		 2015 X12 0.151 0.407 0.446 0.852** 0.631** 0.9736**
XX5 -0.225 -0.034 -0.454 -0.355 -0.391 -0.375
X23 -0.289 -0.220 -0.542 -0.657* -0.625* -0.734*
2016 X1 -0.417 -0.427 -0.793** -0.585 -0.484 -0.900**
X10 -0.468 -0.501 -0.758** -0.540 -0.429 -0.916**
X15 -0.167 -0.265 -0.060 0.070 -0.177 -0.280
II优602
II you 602		 2015 X14 -0.416 -0.640* -0.484 -0.458 -0.882** -0.824**
X15 -0.105 0.136 -0.264 0.140 0.050 -0.066
2016 X2 -0.464 -0.614 -0.675* -0.247 -0.077 -0.942**
X4 -0.007 0.209 0.425 0.841** 0.256 0.602
X19 0.363 0.317 0.373 0.685* 0.651* 0.680*
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