Long-Term No-Tillage Direct Seeding Mode for Water-Saving and Drought-Resistance Rice Production in Rice-Rapeseed Rotation System

Abstract Background The two-line method based on the photoperiod and thermo-sensitive genic male sterile (PTGMS) lines is more cost-effective, simple, and efficient than the three-line system based on cytoplasmic male-sterility. Blast and drought are the most prevalent biotic and abiotic stress factors hampering rice production. Molecular techniques demonstrate higher efficacy in the pyramiding of disease resistance genes, providing green performance under the background of water-saving and drought-resistance rice. Results This study employed molecular marker-assisted selection, conventional hybridization, and high-intensity stress screening to integrate three broad-spectrum blast resistance genes Pi9, Pi5, and Pi54 into Huhan 1S. Subsequently, a novel water-saving and drought-resistance rice (WDR) PTGMS line Huhan 74S was developed. The drought resistance of the new PTGMS line Huhan 74S was comparable to that of Huhan 1S. Pathogenicity assays involving the inoculation of 14 blast prevalent isolates in the glasshouse showed that the blast resistance frequency of Huhan 74S was 85.7%. Further evaluation under natural blast epidemic field conditions showed that Huhan 74S and its hybrids were resistant to leaf and neck blast. The critical temperature point of fertility-sterility alteration of Huhan 74S was 23 °C daily mean temperature. The complete male sterility under natural growth conditions in 2017 at Shanghai lasted for 67 days. Also, both the agronomic and grain quality traits met the requirement for two-line hybrid rice production. Conclusion These results indicate that the newly bred PTGMS line Huhan 74S can be used to breed high-yielding, good-quality, disease-resistant two-line hybrid water-saving and drought-resistance rice (WDR), hence promoting sustainable rice production in China.

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Amount of Rain Until Third Leaf Explain Differences in Irrigated Durum Wheat Yield Between a Conventional and No-Tillage System in a Long-Term Crop Rotation System in Mediterranean Environment

International Journal of Plant Production ◽

10.1007/s42106-019-00059-3 ◽

2019 ◽

Vol 13 (4) ◽

pp. 339-346

Author(s):

Paola Silva ◽

Marco Garrido ◽

Gastón Shertzer ◽

Edmundo Acevedo

Keyword(s):

Durum Wheat ◽

Crop Rotation ◽

Wheat Yield ◽

No Tillage ◽

Mediterranean Environment ◽

Rotation System ◽

Tillage System ◽

Crop Rotation System

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Post-seasonal effects of water-saving rice production regimes on N2O emissions in an annual rice-barley rotation system

CATENA ◽

10.1016/j.catena.2019.104112 ◽

2019 ◽

Vol 182 ◽

pp. 104112

Author(s):

Jie Chen ◽

Shuqing Li ◽

Chen Li ◽

Hong Wang ◽

Yajun Geng ◽

...

Keyword(s):

Water Saving ◽

Rice Production ◽

Seasonal Effects ◽

N2o Emissions ◽

Rotation System

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Efficient Water-Saving Irrigation Solution for Direct Seeding Rice under No-Tillage after Cultivating Wheat

Advances in Intelligent and Soft Computing - Information Technology and Agricultural Engineering ◽

10.1007/978-3-642-27537-1_96 ◽

2012 ◽

pp. 819-826

Author(s):

Zhengguo Sun ◽

Chengming Sun ◽

Yizhao Chen ◽

Jianlong Li ◽

Hongcheng Zhang

Keyword(s):

Water Saving ◽

Direct Seeding ◽

No Tillage ◽

Irrigation Solution

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Molecular Breeding of a Novel PTGMS Line of Wdr for Broad-spectrum Resistance to Blast Using Pi9, Pikh, and Pi5 Genes

10.21203/rs.3.rs-371834/v1 ◽

2021 ◽

Author(s):

Yi Liu ◽

Fenyun Zhang ◽

Xingxing Luo ◽

Deyan Kong ◽

Anning Zhang ◽

...

Keyword(s):

Disease Resistance ◽

Resistance Genes ◽

Broad Spectrum ◽

Drought Resistance ◽

Water Saving ◽

Rice Production ◽

Molecular Techniques ◽

High Yield ◽

Rice Quality ◽

Hybrid Combination

Abstract Background: The two-line method based on the photoperiod and thermo-sensitive genic male sterile (PTGMS) lines is more cost-effective, simple, and efficient than the three-line system based on cytoplasmic male-sterility (CMS). Blast and drought are the most prevalent biotic and abiotic stress factors that hamper rice production, respectively. Molecular techniques demonstrate higher efficacy in the pyramiding of disease resistance genes, providing green performance under the background of water-saving and drought-resistance rice.Results: This work employed molecular marker-assisted selection (MAS), conventional hybridization and high-intensity stress screening to integrate the broad-spectrum blast resistance genes Pi9, Pikh, and Pi5 into Huhan 1S. Subsequently a novel water-saving and drought-resistance rice (WDR) PTGMS line Huhan 74S was developed. The drought resistance of the new PTGMS line Huhan 74S was comparable to that of Huhan 1S. The artificial inoculation of 14 blast strains revealed that the resistance frequency of Huhan 74S was 85.7%. Based on the conditions of natural field induction, Huhan 74S and its hybrid combination revealed satisfactory resistance to leaf and neck blast. The identification outcomes of photo-thermal characteristics showed that the critical point of Huhan 74S fertility conversion had an average daily temperature of 23℃, and the stable sterile period in Shanghai lasted 51 days. The rice quality of Huhan 74S was grade 3 based on standards issued by the ministry. Also, both the agronomic and rice quality performances adhered to the conditions of two-line hybrid rice production.Conclusion: The newly bred PTGMS line Huhan 74S demonstrated a stable and lasting resistance to blast. Moreover, the hybrid combination showed a high yield potential and can be used in the breeding of high-yield, high-quality, disease-resistance two-line hybrid water-saving and drought-resistance rice (WDR), hence promoting sustainable rice production in China.

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Simplified Cultivation Methods for Rice Production in a Rice-ratoon Rice Cropping System in Southwestern China

10.21203/rs.3.rs-645672/v1 ◽

2021 ◽

Author(s):

Peng Jiang ◽

Fuxian Xu ◽

Lin Zhang ◽

Liu Mao ◽

Hong Xiong ◽

...

Keyword(s):

Biomass Production ◽

Cropping System ◽

Conventional Tillage ◽

Rice Production ◽

Grain Weight ◽

Direct Seeding ◽

No Tillage ◽

Labor Costs ◽

Grain Yields ◽

Cultivation Methods

Abstract Simplified cultivation methods for rice production offer considerable social, economic, and environmental benefits. However, limited information is available on yield components of rice grown using simplified cultivation methods in a rice-ratoon rice cropping system. A field experiment using two hybrids and two rice cultivars was conducted to compare four cultivation methods (conventional tillage and transplanting, CTTP; conventional tillage and direct seeding, CTDS; no-tillage and transplanting, NTTP; no-tillage and direct seeding, NTDS) in a rice-ratoon rice system from 2017–2020. Main season yields for CTDS and NTDS were higher than for CTTP, whereas ratoon season yields for CTDS and NTDS were equal to or higher than for CTTP. Annual grain yields for CTDS and NTDS were higher than for CTTP. The higher CTDS and NTDS yields were associated with higher panicle numbers per m2 and biomass production. Rice hybrids had significantly higher yields than inbred cultivars, which was attributed to high grain weight and biomass production. Our results suggest that CTTP can be replaced by CTDS and NTDS to maintain high grain yields and save labor costs. Developing cultivars with high grain weight could be a feasible approach to achieve high rice yields in the rice-ratoon rice cropping system in southwest China.

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Significance, progress and prospects for research in simplified cultivation technologies for rice in China

The Journal of Agricultural Science ◽

10.1017/s0021859610001097 ◽

2010 ◽

Vol 149 (4) ◽

pp. 487-496 ◽

Cited By ~ 18

Author(s):

M. HUANG ◽

MD. IBRAHIM ◽

B. XIA ◽

Y. ZOU

Keyword(s):

Grain Yield ◽

Management Strategies ◽

Basic Research ◽

Conventional Tillage ◽

Rice Production ◽

Direct Seeding ◽

Environmental Benefits ◽

No Tillage ◽

Agronomic Practices ◽

Yield Formation

SUMMARYSimplified cultivation technologies for rice have become increasingly attractive in recent years in China because of their social, economical and environmental benefits. To date, several simplified cultivation technologies, such as conventional tillage and seedling throwing (CTST), conventional tillage and direct seeding (CTDS), no-tillage and seedling throwing (NTST), no-tillage and direct seeding (NTDS) and no-tillage and transplanting (NTTP), have been developed in China. Most studies have shown that rice grown under each of these simplified cultivation technologies can produce a grain yield equal to or higher than traditional cultivation (conventional tillage and transplanting). Studies that have described the influences of agronomic practices on yield formation of rice under simplified cultivation have demonstrated that optimizing agronomy practices would increase the efficiencies of simplified cultivation systems. Further research is needed to optimize the management strategies for CTST, CTDS and NTST rice which have developed quickly in recent years, to strengthen basic research for those simplified cultivation technologies that are rarely used at present (such as NTTP and NTDS), to select and breed cultivars suitable for simplified cultivation and to compare the practicability and effectiveness of different simplified cultivation technologies in different rice production regions.

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