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    20 September 2022, Volume 28 Issue 5 Previous Issue    Next Issue

    Special Thesis & Basic Research
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    Special Thesis & Basic Research
    Research Progress on Screening and Breeding of Ratoon Rice Varieties
    LIN Qiang, CAI Qiuhua, CUI Lili, JIANG Zhaowei, JIANG Jiahuan, WU Fangxi, LUO Xi, XIAO Yanjia, XIE Huaan, ZHANG Jianfu
    2022, 28(5): 1-6.  DOI: 10.3969/j.issn.1006-8082.2022.05.001
    Abstract ( )   HTML ( )   PDF (724KB) ( )  

    As a high-efficiency, simple, high-yield and economical cultivation mode, ratooning rice has been widely promoted in the main rice areas in the southern China. China has great potential for the development of ratooning rice. The production mode is transforming to mechanization, simplification, standardization and intensification, while the production variety of ratoon rice is changing from high node ratooning type to low node ratooning type. In this paper, the research progress in the heredity of ratooning ability, the construction of evaluation indexes and the breeding of strong regeneration ability rice varieties were reviewed, and the ideas and prospects for the breeding of ratooning rice varieties were put forward.

    Breeding of Green Super Rice and its Perspectives
    MO Yifan, WU Yining, YU Sibin
    2022, 28(5): 7-13.  DOI: 10.3969/j.issn.1006-8082.2022.05.002
    Abstract ( )   HTML ( )   PDF (861KB) ( )  

    Food security, environment and natural resources prospect, and green development are major issues in agriculture industry. As a staple food crop, rice plays a vital role in ensuring food security and sustainable development of agriculture. Green Super Rice (GSR) was proposed as a new type rice required resistance to multiple diseases and pests, high nutrient-use efficiency, drought tolerance while exhibiting great stress resilience without compromising grain yield and quality, so as to achieve the goal of “fewer pesticides, fewer fertilizers, reduced irrigation, superior quality and high yield” in rice production. The concept and implementation of GSR have contributed to the development of green agriculture worldwide. The concept, progress and perspectives of GSR are reviewed in this paper.

    Breeding and Industrial Development of Water-saving and Drought-resistance Rice
    LUO Lijun
    2022, 28(5): 14-19.  DOI: 10.3969/j.issn.1006-8082.2022.05.003
    Abstract ( )   HTML ( )   PDF (765KB) ( )  

    The Water-saving and drought-resistance rice refers to a new cultivated rice variety type (NY/T 2862-2015). It is formed by integrating the excellent characteristics of modern elite rice cultivar and upland rice variety based on the progress of rice science and technology. With the strong water saving, drought resistance and live broadcast tolerance ability, the WDR could be planted with the green cultivation mode of dry seeding with aerobic management. It could be cultivated not only in paddy fields without flooding, reduce non-point source pollution and methane emissions, but also in dry land or hillside land, which greatly expanded the plant space of rice. This paper briefly introduced the concept and characteristics of WDR, as well as the cultivation and improvement strategies, listed the 23 varieties bred by the unit and their chief characteristics and suitable areas, and discussed the industrial development goals of WDR.

    Present Situation and Technical Breakthrough of Hybrid Rice Mechanized Seed Production
    TANG Wenbang, CHEN Xiaojun, ZHANG Guilian, DENG Huabing, HU Yuanyi, TIAN Yan
    2022, 28(5): 20-27.  DOI: 10.3969/j.issn.1006-8082.2022.05.004
    Abstract ( )   HTML ( )   PDF (1812KB) ( )  

    Hybrid rice has made great contributions to the food security of China and even the world. But the planting area of hybrid rice in China is declining, the main reason is that the higher cost of seeds restricts the sustainable development of hybrid rice. The traditional production method of hybrid rice seeds has been difficult to meet the current needs of light and simplified rice cultivation. The transformation of hybrid rice seed production from labor-intensive to mechanized seed production is an ideal way to reduce the cost of seed production. This paper summarized the research progress of mechanized seed production of hybrid rice, analyzed the problems faced by mechanized seed production, put forward the technical ways to solve the problems of hybrid rice mechanized seed production combined with the research practice for many years, and prospected the development prospect of mechanized seed production of hybrid rice in the future.

    Progress and Future Prospects of Thermos-sensitive Genic Male-sterile (P/TGMS) Lines Development for Hybrid Rice
    YANG Yuanzhu, WANG Kai, FU Chenjian, FU Xingxue, WU Yaxian, SUN Maoshan, XIE Zhimei
    2022, 28(5): 28-38.  DOI: 10.3969/j.issn.1006-8082.2022.05.005
    Abstract ( )   HTML ( )   PDF (1702KB) ( )  

    The sterile line is the “chip” of hybrid rice. No matter the three-line or the two-line hybrid rice, the continuous breakthrough of rice variety development depends on the discovery and continuous innovation of sterile line germplasm. Since the discovery of Nongken 58S, a photoperiod sensitive male-sterile rice(PGMR), the two-line hybrid rice has occupied half of the area of hybrid rice extension in China after 50 years research. In this paper, we summarized the breeding process and main achievements of the photoperiod/thermo- sensitive genic male-sterile(P/TGMS)lines in China, as well as our progresses of TGMS lines development, and put forward the main direction of research and development for future P/TGMS lines.

    Breeding Progress and Prospect of Perennial Rice
    ZHANG Shilai, HUANG Guangfu, ZHANG Yujiao, LIAN Xiaoping, ZHANG Jing, CHEN Rui, HU Fengyi
    2022, 28(5): 39-43.  DOI: 10.3969/j.issn.1006-8082.2022.05.006
    Abstract ( )   HTML ( )   PDF (574KB) ( )  

    Perennial rice is an innovative rice type bred by the inter-specific hybridization between Oryza sativa and O. longistaminata which was 20 years′ effort of one group in Yunnan University and could realize once planting as multiple harvest via regrowing new tillers from its rhizome buds without tillage over year. Till now, the group proved preliminarily the inheritance of rhizome of O. longistaminata, invented a patent of the method of breeding for perennial rice using the vegetative propagation characteristics of the rhizome of O. longistaminata. Then, a lot of breeding lines with strong perenniality were obtained, 3 of these were released as cultivar of perennial rice as a milestone because this was first cultivar of perennial grain. Moreover, a novel and simplified crop management of perennial rice focused on no tillage and overwinter was built up, which realized once planting with several successive harvests in 4-5 years. The mode of perennial rice innovation, which is from theoretical discovery, technological invention, breeding, crop management innovation, to industrialization, will provides important reference for the genetic improvement and application not only for perennial grain but also for other crops.

    Production Situation and Varieties Breeding Strategies of Direct Seeding Rice
    LIU Licheng, MIN Jun, LIU Sanxiong, LI Xiaoxiang, PAN Xiaowu, LIU Wenqiang, HU Min, ZHAO Yong, LI Yongchao
    2022, 28(5): 44-48.  DOI: 10.3969/j.issn.1006-8082.2022.05.007
    Abstract ( )   HTML ( )   PDF (647KB) ( )  

    In recent years, the area of direct seeding rice has expanded rapidly in China. Combining with the production situation of direct seeding rice at home and abroad, the problems of direct seeding rice in lodging resistance, seedling emergence rate, cold tolerance, weed control and growth period were pointed out, and the breeding strategies of new rice varieties suitable for direct seeding with “moderate growth period, lodging resistance, low temperature tolerance and anaerobic germination tolerance” were put forward.

    Review and Prospect on Utilization of Heterosis between the Japonica CMS Line and the Wide-compatibility Indica Restore Line in China
    SHI Yongfeng, LIU Xin, HUA Yufeng, SONG Xinwei, E Zhiguo, WU Mingguo, LIN Jianrong
    2022, 28(5): 49-56.  DOI: 10.3969/j.issn.1006-8082.2022.05.008
    Abstract ( )   HTML ( )   PDF (924KB) ( )  

    The main type of indica-japonica hybrid rice was bred by the japonica CMS line as female parent and the wide-compatibility indica restore line as male parent. The first typical japonica-indica hybrid rice Yongyou 6 was bred by crossing japonica CMS Yongjing 2A and indica restore K4806 in Zhejiang province. In recent year, a number of influential japonica-indica hybrid rice were bred by the similar breeding mode with obvious yield advantages and were welcomed by farmers. This article reviewed the history of indica-japonica rice research, focusing on the present situation of utilization of heterosis between japonica CMS lines and the wide-compatibility indica restore lines, in order to provide a useful reference for the future research on the utilization of heterosis between indica and japonica rice subspecies.

    Rice Variety Functions Plus Empower Rural Vitalization and Common Prosperity
    WU Dianxing, SHU Xiaoli, ZHANG Ning, XIONG Haizheng, XIA Yingwu
    2022, 28(5): 57-61.  DOI: 10.3969/j.issn.1006-8082.2022.05.009
    Abstract ( )   HTML ( )   PDF (687KB) ( )  

    In order to meet the needs of sustainable development of agriculture and rice industry in the future, future rice breeding will be market-oriented and characterized by ‘an agronomic or economic trait is a technology and an industry’ by using the advanced and comprehensive biotechnology. This paper reviewed the research progress of important “core” traits, nutritional functional quality, ecological model of planting and breeding, creative agriculture and cross-border applications.

    Current Situation and Countermeasures of Rice Breeding and Seed Industry Development in China
    WANG Yuexing, WEI Xiangjin, XU Chunchun, FANG Fuping
    2022, 28(5): 62-65.  DOI: 10.3969/j.issn.1006-8082.2022.05.010
    Abstract ( )   HTML ( )   PDF (553KB) ( )  

    The rice seed industry is the foundation of China's agricultural development, and seed self-reliance is crucial to food security. Nowadays, China has advantages in traditional rice breeding technology innovation, and has a relatively complete breeding intellectual property protection system. Nonetheless, there is still room for improvement in emerging breeding techniques. In the future, China needs to increase financial support to improve the research and development capabilities of core technologies in the seed industry, as well as the technological innovation capabilities of the rice seed industry.

    The Most Remarkable Varieties in 100 year's Rice Breeding in China
    ZHAO Jian, YIN Hexin, ZHU Chengqi, LIU Dingfu, FANG Fuping, SHEN Zhicheng, YING Jifeng
    2022, 28(5): 66-73.  DOI: 10.3969/j.issn.1006-8082.2022.05.011
    Abstract ( )   HTML ( )   PDF (979KB) ( )  

    In a 100 year's rice breeding, Chinese scientists bred a series of high yielding, multi-resistant pest or disease and good quality rice varieties, which were extended and adopted at different rice producing regions, basically solve the food problem of the China’s people. A three-decade period of 1919 to 1949 was marked by the first large-area-adopted variety of Zhongdamaozi, the first variety Zhongshan 1 crossed with wild rice, and the improved variety Nantehao with the largest promotion area. During the period from 1950 to 1979, high-yield rice varieties with short stalks and fertilizer tolerance, such as Aijiao Nante, Zhenzhu Ai 11, Guanglu Ai 4, and Guichao 2 were developed. In 1973, the three-line matching of indica hybrid rice was successfully realized, a high-yield hybrid rice variety Nanyou 2 was developed, and the industrial application of hybrid rice began. In 1978, the promotion area of hybrid rice reached 2.98 million hm2. After 1980, high-yielding varieties such as the conventional rice variety Zhefu 802, the hybrid rice variety Shanyou 63, the two-line hybrid rice variety Liangyoupeijiu have been bred. Entering the 21st century, high-quality, high-yield and multifunctional rice represented by Zhongjiazao 17, Yongyou series varieties has become the dominant variety in China. Looking forward to the future, with the improvement of people's living standards, cultivating high-quality, high-yield and multi-functional varieties with health and environment kindly characteristics will become the main direction of rice breeding.

    Current Situations, Problems and Prospects of Rice Seed Industry in China
    XU Chunchun, WEN Junqing, JI Long, CHEN Zhongdu, FANG Fuping
    2022, 28(5): 74-78.  DOI: 10.3969/j.issn.1006-8082.2022.05.012
    Abstract ( )   HTML ( )   PDF (596KB) ( )  

    Since the 12th Five-Year Plan, the number of certified rice varieties has increased rapidly and the structure types of rice have been gradually optimized. The production area of hybrid rice seed fluctuated greatly with continuous optimization for the structure. The prices of seeds were steadily rising, and the market scale expanded ceaselessly. Both the number and area of the main varieties in the production were declined, while the varieties quality improved significantly. The export of rice seeds fluctuated in a narrow range with a steady growth for the export value. At the same time, the seed industry in China are facing a series of prominent problems, such as low innovation ability of breeding, weak competitiveness of enterprises, low level in seed production, and increasing difficulty for the export of hybrid rice seeds, etc. From the perspective of future development, new technologies such as biological breeding will enter a phase of rapid development, and the application of breakthrough new varieties will be accelerated. The concentration of seed market will be further improved, and the international competitive strategy of hybrid rice will change from product output to technology output.

    Development and Trend of Geng Rice Breeding in North China
    TANG Liang, CHEN Wenfu
    2022, 28(5): 79-81.  DOI: 10.3969/j.issn.1006-8082.2022.05.013
    Abstract ( )   HTML ( )   PDF (413KB) ( )  

    The production of geng rice is related to absolute safety of grain rations. Geng rice production in the north China directly affects the stability of the geng rice market, and bears the historical responsibility of national food security and social stability. Seeds are the foundation of grain, and grain abundance requires high quality varieties. In recent decades, geng rice breeding has greatly promoted the rapid development of geng rice production in north China. Under the new situation, the development strategy of geng rice breeding in the north China is equal emphasis on yield and quality, combination of high efficiency widespread and high resistance, complementary of conventional breeding and biological breeding, paying equal attention to commercial breeding and non-commercial breeding. We should firmly grasp the high-quality geng rice seeds in our own hands and ensure national food security.

    Development and Enlightenment of Japonica Rice Breeding with Good Eating Quality in Jiangsu Province
    WANG Cailin
    2022, 28(5): 82-91.  DOI: 10.3969/j.issn.1006-8082.2022.05.014
    Abstract ( )   HTML ( )   PDF (1163KB) ( )  

    Jiangsu is one of the main rice producing provinces in China. In recent years, the rice planting area is about 2.2 million hm2, the total yield of about 19.5 million tons and the yield per unit is nearly 9.0 t/hm2. It plays an important role in ensuring the food security of Jiangsu and even the whole country. For a long time, the main goal of rice breeding in Jiangsu Province has been high yield. After entering the 21th century, high quality has become the primary goal of rice breeding in Jiangsu Province. This paper summarized the background of high-quality rice breeding in Jiangsu Province, the approach of improving eating quality and the progress of good eating japonica rice breeding, and analyzed the enlightenment of good eating quality japonica rice breeding and the development direction of eating quality improvement and high-quality breeding of rice in Jiangsu Province in the future, so as to provide enlightenment and reference for the rice breeders.

    Current Situation and Molecular Design Breeding Strategy of Heavy Panicle Hybrid Rice in Southwest China
    YUAN Hua, CHEN Weilan, WANG Hao, WANG Yuping, MA Bingtian, TU Bin, QIN Peng, LI Shigui
    2022, 28(5): 92-106.  DOI: 10.3969/j.issn.1006-8082.2022.05.015
    Abstract ( )   HTML ( )   PDF (1437KB) ( )  

    Rice is one of the most important cereal crop in China and more than 60% of the population taking rice as the stable food. Southwest rice region is one of the six rice regions, which has important strategic significance to guarantee China food security. In view of the ecological conditions of “little sunshine, high humidity, and small temperature difference” in the southwest rice region, academician Zhou Kaida have experienced hard exploration and repeated practice, and proposed that development of “heavy panicle type” hybrid rice is an important way to achieve super high yield of rice in Southwest China. This article summarizes the current situation of heavy panicle hybrid rice in Southwest China, enumerates the gene resources that can be used in the molecular design breeding, and proposes the strategies for molecular design breeding, in order to breed new “coordinate heavy panicle type” varieties with high yield and good quality, and devote to create a higher level “Tianfu granary”.

    Breeding and Development of High-quality Hybrid Rice in South China
    WANG Feng
    2022, 28(5): 107-116.  DOI: 10.3969/j.issn.1006-8082.2022.05.016
    Abstract ( )   HTML ( )   PDF (996KB) ( )  

    In this paper, the development of high-quality hybrid rice varieties in south China, including two stages, were summarized. The first stage is the development of high-quality hybrid rice with medium amylose content(AC). During this period, eight male sterile lines of rice with better grain shape, less chalkiness and good transparency, such as Bo A, Qiu A, Mei A, Yuetai A, Tianfeng A, Wufeng A, Rongfeng A and Jifeng A, were bred, and 149 high-quality hybrid rice varieties with medium amylose content, such as Boyou 998, Tianyou 998, and Wuyou 308, were developed by using these 8 male sterile lines as female parent. In addition, 9 two-line hybrid rice varieties with fine quality, such as Peizashuangqi, Peizataifeng, etc., were also developed by using P/G MS line Pei’ai64S. The second stage is the development stage of high-quality hybrid rice with low amylose content, and 13 high-quality sterile lines including Yuefeng A, Taifeng A, Yexiang A, Guang 8A, and Toyota 1A have been bred, and totally about 212 high-quality hybrid rice varieties with low amylose content, such as Taifengyou 208, Yexiangyou Lisi, and Fengtianyou 553, were developed by using these 15 male sterile lines as female parent. Moreover, Huazhan and Bing 4114 and 8 high-yield and disease-resistant and high-quality conventional rice, such as Wushansimiao, Yuenongsimiao, Wushanyouzhan, were used as restorer lines, and 175 high-quality hybrid rice varieties have been developed and released for commercial production. Since 2015, averagely more than half of the top ten hybrid rice varieties of annual planting area in China, were bred or cooperatively bred by using the MS lines or restore lines developed in south China. The improvement of rice grain quality and breeding in south China played an important role in development of high-quality hybrid rice production. In the end, the current problems of high-quality hybrid rice varieties in south China and the prospects of breeding were discussed.

    Process, Problems and Prospect of High-quality Rice Breeding in Hunan Province
    ZHAO Zhenghong, HU Wenbin, WANG Li, ZHOU Zheng, LIU Tengfei, LIU Ye
    2022, 28(5): 117-123.  DOI: 10.3969/j.issn.1006-8082.2022.05.017
    Abstract ( )   HTML ( )   PDF (845KB) ( )  

    In this paper, the historical background and the corresponding policy of the development of high-quality rice in Hunan province was introduced in more detail, and the process of high-quality rice varieties research since the Reform and Opening up was reviewed. According to the focus of research, the process was divided into four stages, and the representative varieties and their characteristics of each stage were also elaborated. In addition, this paper also summarized the achievements in the breeding of varieties, evaluation systems, supporting technologies and industrialization of high-quality rice research in Hunan province in the past 40 years, analyzed the current problems of high-quality rice in Hunan, and put forward some suggestions on future development.

    Research Progress and Prospect of Japonica Rice Breeding in Heilongjiang Province
    PAN Guojun, GUO Junxiang
    2022, 28(5): 124-128.  DOI: 10.3969/j.issn.1006-8082.2022.05.018
    Abstract ( )   HTML ( )   PDF (621KB) ( )  

    Heilongjiang is a major province for japonica rice production in China, with the highest total output, commodity volume, commodity rate, commodity transfer out volume and per capita rice production, which is mainly due to the continuous renewal of rice varieties. In recent years, great progress has been made in japonica rice breeding in Heilongjiang province. The breeding theory and technical system of semierect panicle new plant type with rapid growth characteristics at early stage, and disease resistance, cold resistance and lodging resistance of early japonica rice in cold areas have been established. A number of good-quality, high-yield potential and multi-resistance rice varieties represented by Longjing 31 were bred and popularized, which finished the history of Japanese variety kongyu 131 dominating the production of early japonica rice in cold areas in China for more than 10 years. In 2020, “new Longjing varieties of early japonica rice with high quality, high yield and multi-resistance in cold regions” was rated as one of the top ten landmark achievement in agricultural science and technology in China's 13th Five-Year Plan for its historic breakthrough in early japonica rice breeding in cold regions in China. It has surpassed the well-known varieties in similar rice areas at home and abroad, reached the world leading level in terms of yield, resistance, adaptability and application area. In this paper, the corresponding suggestions and countermeasures are put forward for the problems existing in japonica rice breeding in Heilongjiang.

    Status and Prospect of Rice Breeding in High Latitude Cold Region
    SHANG Quanyu, LIU Anjin, WANG Song, ZHANG Xiwen, LIU Xianyuan, WU Junyan, ZHANG Wenzhong
    2022, 28(5): 129-132.  DOI: 10.3969/j.issn.1006-8082.2022.05.019
    Abstract ( )   HTML ( )   PDF (487KB) ( )  

    With the rapid development of the national economy and the improvement of people's living standards, the demand for japonica rice is growing steadily. Heilongjiang is the main production area of japonica rice in China, which plays an important role in ensuring the stability of the japonica rice market and the food ration security of the people across the country. The planting area of japonica rice in the high latitude cold region represented by the four and five accumulated temperature zones in Heilongjiang province is about 700,000 hectares. This area has special ecological conditions, cold climate and short frost-free period, which have special needs for rice breeding. The article summarized the development history and current situation of rice breeding in high-latitude cold regions, and put forward the direction of future development.

    Development of Standard of Cooking Rice Variety Quality in China and Its Influence on Rice Quality Improvement
    HU Xianqiao, LU Lin, ZAHNG Weixing, MOU Renxiang, CHEN Mingxue
    2022, 28(5): 133-138.  DOI: 10.3969/j.issn.1006-8082.2022.05.020
    Abstract ( )   HTML ( )   PDF (578KB) ( )  

    The standard of cooking rice variety quality played a positive role in enhancing the people's rice quality consciousness and promoting the improvement of rice quality in China. In order to fully understand the standard of cooking rice variety quality and its role in the rice quality improvement, we systematically analyzed the development of standard based on successive editions and discussed the trends of the high quality rate of rice in China, for providing references for the cultivation and industrial development of high-quality rice varieties in the 14th Five-year Plan period in China.