|
The successful commercialization of hybrid rice in many parts of the word is linked
to the development of hybrid seed production technology. Although rice is a
self-pollinated crop, a hybrid seed production mechanism has been developed using
systems based on cytoplasmic and environmentally sensitive genetic male sterility.
Currently, about 610,000 ha are covered with hybrid rices in Vietnam (340,000 ha),
India (200,000 ha), Bangladesh (50,000 ha), USA (10,000 ha), Philippines (5,000 ha)
and Myanmar (5,000 ha). These have given on average about 20-25% (1 - 1.5/ha) higher
yields than the inbred HYVs, thereby contributing towards higher on-farm
productivity. Currently, hybrid rice technology is considered a viable option to
increase rice yields globally (Yuan 1994, Virmani 1994, Janaiah and Hossain 2000).
CALTECH represents Chinese Reputed Hybrid Rice seeds brand QINGYOU. |
 |
|
| |
| |
|
