Hybrid rice is also grown in many other important rice-producing countries including Indonesia, Vietnam, Myanmar, Bangladesh, India,[9] Sri Lanka, the Philippines, Brazil and United States.
[12] Chinese hybrid rice investors have taken over formerly ethnic-minority-owned land and simultaneously stoking anti-Chinese sentiment in Myanmar's remote northern Shan State.
Young hybrid seedlings have faster root and leaf development and better canopy development; the mature plant has increased total dry matter, larger panicles (the terminal shoots that produce grain), more spikelets (units of flower) per unit area, increased total weight of grains, and, consequently, higher yields.
[16] Additionally, the adoption of hybrid varieties continues to remain low in the Global South possibly due to its poor performance in certain environmental conditions.
[17] In China, the hybrid system involving limits on certain characteristics has prevented researchers from finding a way to cure poor resistance against disease and pests.
The cultivation of seed and high-skilled labor cost much money in the beginning, causing 20% of government avenue solving the gap.
According to saying from famous Chinese scientist Yuan Longping, two-line systems are needed to build in the future due to the limited plateau area.
Hybrid rice for the whole country is controlled by a few large seeding companies, bringing up potential food safety problems.
Importantly however, the hybrid rice has brought significant improvements to land and water use,[20] access to calories and quality of life.
Additionally, cultivation on terraces should be monitored for crumbling and accumulating soil toxicity issues, as new research demonstrates the hybrid has a propensity for changing a mountain water recharge cycle beyond what is sustainable.
[21] From October 21 to 22, 2019, the third-generation hybrid rice was tested for the first time in Qingzhu Village, Hengnan County, Hengyang, Hunan Province.