Hybrid rice for global food security

 Longping Yuan   |  

(Photo: China National Hybrid Rice Research & Development Center©)


Replacing half of the rice-growing areas in the world with hybrid rice varieties with a 2 t/ha yield advantage could feed 400‒500 million more people each year.

Rice is the main food crop that feeds more than half of the world’s population. Therefore, it plays an essential role in food security and poverty alleviation.

Theoretically, rice still has a great yield potential to be tapped and there are several ways to increase rice yield. Based on successful experiences in China, the most effective and economical means is by developing hybrid rice.

It has been proven for many years that hybrid rice has achieved more than a 20% yield advantage over improved inbred varieties. In recent years, hybrid rice has covered 17 million hectares (ha) or 57% of the total rice area in China, where the nationwide average yield is 8 tons per hectare (t/ha)—about l.7 t/ha higher than the yield of inbred varieties (6.3 t/ha). The yearly increases in grain production in the country, because of the growing cultivation of hybrid rice, can feed 70 million people annually. Therefore, hybrid rice has been playing a critical role in solving the food problem in China, making it the largest country self-sufficient in food.

[su_note note_color=”#c6c4ff”]                                            See Q&A with the Father of Hybrid Rice[/su_note]

To meet the food requirement of Chinese people in the 21st century, a program for developing super hybrid rice was launched in 1997. The program’s first-, second-, third-, fourth-, and fifth-phase yield goals were realized in 2000 (10.5 t/ha), 2004 (12 t/ha), 2012 (13.5 t/ha), 2014 (15 t/ha), and 2016 (16 t/ha), respectively. In 2017, the program reached its sixth-phase target yield of 17 t/ha (17.24 t/ha). Under its seventh phase, the program is developing a super hybrid rice with a yield target of 18 t/ha.

Hybrid rice has also been proven to be a very effective approach for greatly increasing yield outside China. The use of hybrid rice has been spreading commercially throughout the world in India, Vietnam, Bangladesh, Pakistan, the Philippines, Madagascar, and the United States, where hybrid rice occupied more than 7 million ha in 2016.

If half of the rice-growing areas in the world are replaced with hybrid rice varieties with a 2 t/ha yield advantage, it is estimated that total global rice production would increase by another 150 million tons annually. This could feed 400‒500 million more people each year. This would truly be a significant contribution to ensure food security and peace all over the world.
____________
Prof. Yuan is the director of the China National Hybrid Rice Research and Development Center. He will also be a keynote speaker at IRC2018.

4 Comments so far. Feel free to join this conversation.

  1. RAJKUMAR DASARI September 18, 2018 at 12:52 am - Reply

    Up to date information

  2. andrew maika November 1, 2018 at 8:55 pm - Reply

    From Papua New Guinea attending training course in China from Sept to Nov.8th
    2018.on Practical Technology of small Agric.Machinery for Developing Counttries organized byYuan Longping High-tech Sgric.Co.Ltd. Some Hybrid rice varieties must be tested out and introduced farm mechanization by using appropriate engine power technology using power tillers

  3. Saad ullah January 12, 2019 at 4:36 pm - Reply

    i am from pakistan. and i want acquire the hybrid rice seed. can you please guide how is it possible ?

  4. pradip kumar February 9, 2019 at 1:47 am - Reply

    Pls provide the nation wise hybrids rice area, via India, Bangladesh, Vietnam, Myanmar, Philippians, etc.

    Major hurdle for hybrids rice are expansion in India and how we overcome???

Leave A Response