| RDH1 is the first hybrid rice variety being released by Rice Department. It is ideal for irrigated areas due to it’s high yield characteristics. Despite the high yield, seed production procedures of hybrid rice are more complicated than the normal ones as hand transplanting is needed. Procedures start from transplanting two sowing dates of male parental line JN43-1-5-5-1-3-1 (R-line) prior to that of the female one, IR79156A (A-line). Furthermore, flag leaf has to be cut off and hand-pollination is needed. The flag leaf cutting leads to the occurrence of dirty panicle disease and therefore the application of fungicide. This increases the cost of production which is unfavorable for the farmers. Thus, transplanting machine is introduced to improve the... |
