Yield and Resource Utilization Efficiency Gap in Early Maturing Japonica Rice Cultivars under Different Management Strategies—A Different Location Investigation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Experimental Sites
2.2. Experiments and Crop Management
2.3. Yield and Yield Components
2.4. Resource-Use Efficiency
2.5. Statistical Analysis
3. Results
3.1. Yield and Yield Components
3.2. Yield Gap
3.3. Harvest Index and Biomass
3.4. Resource Utilization Efficiency
3.4.1. Water-Use Efficiency
3.4.2. Radiation-Use Efficiency
3.4.3. Heat-Use Efficiency
3.5. Correlation Analysis
3.5.1. Regression Analysis of Yield and Resource-Use Efficiency
3.5.2. Correlations between Yield Components and Resource-Use Efficiency
3.5.3. Correlations among the Harvest Index, Biomass, and Resource-Use Efficiency
3.5.4. Correlations between Rice Yield and Yield Components, Harvest Index, and Biomass
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Treatment | SRP | PP | IM | AI (m3/ha−1) | TNFA (ha−1) | CF (ha−1) | |
---|---|---|---|---|---|---|---|
Nano-Silicon | Guifuji | ||||||
N0 | DBM | PW | SWF | 9750–11,250 | 0 | - | - |
FP | DBM | PW | SWF | 9750–11,250 | 150 | - | - |
HYP | DBM | PW | AWD | 7500–8250 | 160 | 450 | - |
SHY | PRM | AWNW | AWD | 7500–8250 | 180 | 450 | 15 |
Treatment | Panicles (m−2) | SNP | SSR (%) | 1000 GW (g) | TY (Mg ha−1) | |
---|---|---|---|---|---|---|
Sites | Daqing | 394.7 b | 97.7 a | 91.5 a | 21.0 b | 7.45 b |
Suiling | 472.4 a | 75.8 b | 89.8 b | 24.2 a | 7.78 a | |
Cultivation methods | N0 | 314.8 d | 73.7 d | 94.5 a | 23.4 a | 5.02 d |
FP | 429.1 c | 83.8 c | 91.2 b | 22.7 b | 7.36 c | |
HYP | 462.0 b | 92.3 b | 88.5 c | 22.6 b | 8.45 b | |
SHY | 528.2 a | 97.1 a | 88.3 c | 21.8 c | 9.63 a | |
Analysis of variance | ||||||
Sites | ** | ** | ** | ** | * | |
Cultivation methods | ** | ** | ** | ** | ** | |
Sites × Cultivation methods | * | ** | ns | ns | ns | |
Varieties | KJ6 | 437.5 b | 94.8 b | 89.8 b | 21.2 c | 7.88 b |
KJ8 | 352.0 c | 100.6 a | 93.2 a | 20.9 c | 7.01 c | |
LJ31 | 503.6 a | 75.9 c | 91.6 a | 23.8 b | 8.35 a | |
LJ46 | 441.2 b | 75.6 c | 87.9 c | 24.7 a | 7.21 c |
Treatment | Harvest Index | Biomass (Mg ha−1) | |
---|---|---|---|
Sites | Daqing | 0.524 b | 14.10 a |
Suiling | 0.575 a | 13.46 b | |
Cultivation methods | N0 | 0.513 b | 9.76 d |
FP | 0.530 b | 13.97 c | |
HYP | 0.578 a | 14.67 b | |
SHY | 0.577 a | 16.70 a | |
analysis of variance | |||
Sites | ** | * | |
Cultivation methods | ** | ** | |
Sites × Cultivation methods | ns | ns | |
Varieties | KJ6 | 21.2 c | 14084.5 a |
KJ8 | 20.9 c | 14107.9 a | |
LJ31 | 23.8 b | 13761.1 a | |
LJ46 | 24.7 a | 13153.6 b |
Treatments | Panicles (m−2) | SNP | SSR | 1000 GW | HI | Biomass |
---|---|---|---|---|---|---|
N0 | 0.8902 ** | 0.1229 ns | 0.0185 ns | −0.1013 ns | 0.7383 ** | 0.7636 ** |
FP | 0.6707 ** | −0.2533 ns | 0.2322 ns | 0.6219 ** | 0.5427 ** | 0.4344 * |
HYP | 0.6130 ** | 0.0085 ns | 0.3654 ns | 0.2947 ns | 0.5698 ** | 0.6049 ** |
SHY | 0.5820 ** | −0.0228 ns | 0.1731 ns | −0.0094 ns | 0.6465 ** | 0.5298 ** |
All | 0.8861 ** | 0.4893 ** | −0.4032 ** | −0.1794 | 0.6246 ** | 0.9054 ** |
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Lv, Y.; Hu, Y.; Sun, F.; Huo, W.; Li, H.; Liu, L.; Yin, D.; Zheng, G.; Guo, X. Yield and Resource Utilization Efficiency Gap in Early Maturing Japonica Rice Cultivars under Different Management Strategies—A Different Location Investigation. Agriculture 2022, 12, 1010. https://doi.org/10.3390/agriculture12071010
Lv Y, Hu Y, Sun F, Huo W, Li H, Liu L, Yin D, Zheng G, Guo X. Yield and Resource Utilization Efficiency Gap in Early Maturing Japonica Rice Cultivars under Different Management Strategies—A Different Location Investigation. Agriculture. 2022; 12(7):1010. https://doi.org/10.3390/agriculture12071010
Chicago/Turabian StyleLv, Yandong, Yue Hu, Fu**g Sun, Wanyue Huo, Hongyu Li, Lihua Liu, Dawei Yin, Gui** Zheng, and **aohong Guo. 2022. "Yield and Resource Utilization Efficiency Gap in Early Maturing Japonica Rice Cultivars under Different Management Strategies—A Different Location Investigation" Agriculture 12, no. 7: 1010. https://doi.org/10.3390/agriculture12071010