Abstract 【Objective】The aim of the study was to evaluate the yield and growth traits of different types of japonica rice in the late season in the lower reaches of the Yangtze River, so as to provide a theoretical basis for selecting the proper varieties in the double cropping late season in this area. 【Method】 Field experiment was carried out at the China National Rice Research Institute in Hangzhou, Zhejiang province from 2017 to 2018, with four rice types, including the late indica rice (IR) as a control, inbred japonica (IJR), hybrid japonica (HJR) and indica/japonica hybrid rice (IJHR). 【Result】(1) The yield of IJHR (8.3-10.0 t·hm -2) was significantly higher than that of other rice types, increasing by 2.9%-29.3%, 30.9%-35.3% , and 13.4%-14.0% than IR, IJR, and HJR, respectively; The average yield of IJR was the lowest, which was 24.0% (2017) and 1.2% (2018) lower than control (IR), while the yield difference between HJR and IR was varied within years. The IJHR had higher spikelets per panicle and greater sink, and similar panicles per unit area, grain weight, and grain setting as compared to IR. In contrast, the IJR/HJR had higher grain weight and lower spikelets per panicle than IR. The growth duration was ranked in the order of IJHR>HJR>IJR>IR. Compared with IR, the japonica rice (IJR, HJR, and IJHR) had similar vegetative stage (about 56-59 d), slightly reduced reproductive stage (1-6 d), and prolonged the grain filling stage (12-22 d), which leading to an improved accumulation of temperature and solar radiation of the growth duration. (2) The yield component and phenological traits were dimensional reduced by principal component analysis (PCA) as principal component one (panicle size factor, 37.7%) and the principal component two (the growth factor, 24.7%), of which the IJHR was classified as variety with few panicles, large grains, and long grain filling stage, and the IR was medium panicles numbers and size, and short grain filling stage. There was no difference between IJR and HJR based on PCA, being multiple panicles, small panicle size, and long grain filling stage. (3) Correlation analysis showed that the yields of late japonica rice were significantly positively correlated with spikelets per panicle (R2=0.607,P<0.001), sink size (R2=0.779,P<0.001) and grain filling stage (R2=0.505,P<0.001). Compared with the late indica rice, the yield of the double cropping late japonica rice was obvious sensitive to the change of environment, which was characterized by large coefficient of variation between varieties and years. Therefore, it was necessary to localize the variety and cultivate it by species. 【Conclusion】 Applying japonica variety in the late season would prolong the grain filling stage, and increase the temperature and solar radiation accumulation for the late-season rice as compared with IR. The IJHR with large panicle size, high sink size and long grain filling stage maintained the great yield superiors and being suitable for growing the late season in the lower reaches of the Yangtze River, which would help to improve the yield, temperature and light resources utilization and safety of the late-season rice. Keywords:double cropping late rice;yield;growth traits;late indica rice;inbred japonica rice;hybrid japonica rice;indica/japonica hybrid rice
PDF (1243KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 殷敏, 刘少文, 褚光, 徐春梅, 王丹英, 章秀福, 陈松. 长江下游稻区不同类型双季晚粳稻产量与生育特性差异[J]. 中国农业科学, 2020, 53(5): 890-903 doi:10.3864/j.issn.0578-1752.2020.05.003 YIN Min, LIU ShaoWen, CHU Guang, XU ChunMei, WANG DanYing, ZHANG XiuFu, CHEN Song. Differences in Yield and Growth Traits of Different Japonica Varieties in the Double Cropping Late Season in the Lower Reaches of the Yangtze River[J]. Scientia Acricultura Sinica, 2020, 53(5): 890-903 doi:10.3864/j.issn.0578-1752.2020.05.003
Table 2 表2 表22017—2018年不同类型晚稻产量差异 Table 2Differences in yields of different types of late rice from 2017 to 2018 (t·hm-2)
类型 Type
品种 Variety
2017
2018
IR
黄华占 Huanghuazhan
7.9±0.4c
7.5±0.2gh
天优华占 Tianyouhuazhan
7.6±0.2cd
7.8±0.2fg
C两优华占 C Liangyouhuazhan
8.9±0.2a
7.9±0.3efg
IJR
嘉58 Jia 58
5.9±0.1fg
8.5±0.2cd
嘉禾218 Jiahe 218
6.1±0.3f
6.1±0.1i
南粳46 Nangeng 46
5.6±0.1g
8.3±0.3de
南粳9108 Nangeng 9108
6.6±0.1e
7.2±0.1h
秀水134 Xiushui 134
6.6±0.3e
8.0±0.1ef
HJR
常优5号 Changyou 5
7.4±0.3d
8.7±0.2c
嘉优5号 Jiayou 5
7.3±0.1d
8.8±0.3c
IJHR
春优84 Chunyou 84
8.3±0.2b
—
春优927 Chunyou 927
—
10.6±0.4a
甬优1540 Yongyou 1540
8.4±0.2b
9.9±0.4b
甬优538 Yongyou 538
8.3±0.3b
9.5±0.2b
平均值 Average
IR
8.1±0.6a
7.7±0.3c
IJR
6.2±0.4c
7.6±0.9c
HJR
7.4±0.2b
8.8±0.3b
IJHR
8.3±0.2a
10.0±0.5a
ANOVA
品种类型 Type (T)
65.60**
年份 Year (Y)
62.52**
T×Y
13.95**
Different lowercase letters represent significant differences between different types of late rice in the same year (P<0.05, Duncan), ** means P<0.01; * means 0.01≤P<0.05; ns means P≥0.05. The same as below 不同小写字母代表同一年份不同晚稻类型间显著性差异(P<0.05,Duncan),**表示P<0.01;*表示0.01≤P<0.05;ns表示P≥0.05。下同
Table 4 表4 表4不同类型晚稻2017-2018年生育期差异 Table 4Differences in growth period of different types of late rice from 2017 to 2018 (d)
年份 Year
类型 Type
营养生长期 Vegetative stage
穗发育期 Reproductive stage
灌浆期 Grain filling stage
全生育期 Growth period
2017
IR
58a
24a
35c
117c
IJR
58a
21a
47b
126b
HJR
58a
22a
48b
128ab
IJHR
58a
23a
50a
131a
2018
IR
58a
25a
42b
125c
IJR
57b
22ab
58a
136b
HJR
59a
19b
62a
140ab
IJHR
56b
24a
64a
143a
ANOVA
品种类型 Type (T)
12.81**
4.93**
64.32**
41.02**
年份 Years (Y)
11.18**
0.00ns
115.18**
94.65**
T×Y
12.81**
1.18ns
2.16ns
0.80ns
The vegetative stage refers to a period from sowing to the initiation of panicle primordial; The reproductive stage, from panicle primordial initiation to heading; and the grain filling stage, from heading to maturity. The same as below 营养生长期:播种期至幼穗分化期;穗发育期:幼穗分化期至齐穗期;灌浆期:齐穗期至成熟期。下同
Table 5 表5 表52017—2018年不同类型晚稻不同生育阶段温光资源配置差异 Table 5Differences in the allocation of temperature and light resources among different growth stages of different types of late rice from 2017 to 2018
年份 Year
类型 Type
营养生长期 Vegetative stage
穗发育期 Reproductive stage
灌浆期 Grain filling stage
全生育期 Growth period
EAT (℃)
LH (h)
Rs (MJ·m-2)
EAT (℃)
LH (h)
Rs (MJ·m-2)
EAT (℃)
LH (h)
Rs (MJ·m-2)
EAT (℃)
LH (h)
Rs (MJ·m-2)
2017
IR
1187.7b
449.5a
1097.8a
433.5a
126.6a
360.3a
419.3b
88.8d
426.2c
2040.5c
664.9c
1872.2c
IJR
1187.7a
449.5a
1097.8b
380.1a
110.5ab
312.7a
532.4a
168.5c
580.6b
2100.2b
728.5b
1979.1b
HJR
1187.7b
449.5a
1097.8a
402.6a
107.3b
327.4a
522.9a
185.7b
589.8ab
2113.2ab
742.5ab
2003.0ab
IJHR
1187.7b
449.5a
1097.8a
412.9a
113.7ab
338.4a
530.6a
198.7a
613.6a
2131.2a
762.0a
2037.7a
2018
IR
1157.0a
432.3a
1066.3a
434.1a
140.9a
386.6a
456.5b
225.7b
540.6b
2047.6b
786.8b
1973.3c
IJR
1130.3b
425.7b
1045.1b
387.8a
128.5ab
340.3ab
595.4a
273.1a
703.5a
2113.5a
815.1a
2068.6b
HJR
1176.1a
437.1a
1081.5a
334.1b
117.9b
299.3b
627.9a
288.3a
745.3a
2138.1a
831.2a
2105.8ab
IJHR
1118.8b
422.8b
1035.9b
418.4a
138.3a
368.9a
609.7a
287.5a
744.1a
2146.8a
836.5a
2128.7a
ANOVA
品种类型 Type (T)
12.81**
12.81**
12.81**
4.85**
5.67**
5.01**
29.40**
69.42**
56.94**
40.14**
36.39**
40.32**
年份Year (Y)
151.25**
547.95**
222.51**
1.07ns
21.78**
1.40ns
33.19**
529.12**
116.76**
5.31*
306.87**
76.48**
T×Y
12.81**
12.81**
12.81**
1.51ns
0.60ns
1.08ns
1.13ns
4.80**
0.43ns
0.25ns
3.81*
0.10ns
EAT: Effective accumulated temperature; LH: Light hours; Rs: Solar radiation data at the earth’s surface EAT:有效积温;LH:日照时数;Rs:太阳辐射
产量与有效穗数(A)、每穗粒数(B)、结实率(C)、千粒重(D)、库容(E)、灌浆期(F)相关系数显著性检验(P<0.05, Person),**表示P<0.01;*表示0.01≤P<0.05;ns表示P≥0.05 Fig. 4Relationship between yield and main agronomic traits of different types of cultivars
Significance test of correlation coefficients between yield and panicles (A), spikelets (B), grain setting (C), 1000-grain weight (D), sink size (E), and grain filling stage (F) (P<0.05, Pearson), ** means P<0.01; * means 0.01≤P<0.05; ns means P≥0.05
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