Abstract
The important points to utilize the Assum varieties for crossing are to introduce good characteristic and improve unfit characteristic in our culture. Utilization of the Assam varieties was investigated.
1. The rooting of cutting of the Assam varieties was more difficult than the other kind of tea plant.
2. As the lateral growth of the Assam varieties was very poor. It was necessary to select such varieties that have ample lateral growth in order to improve the vigor of the Assam progenies.
3. The size of mature leaf of the Assam varieties was so large that suitable varieties having corresponding leaf extent of the Assam varieties should be utilized in crossing.
4. The cold resistance of the Assam varieties was very weak, so it was not easy to get any resistant Fl progeny even though resistant variety was crossed with each other. It would rather breed the varieties fit for warm district than breed the resistant varieties in utilizing the Assam varieties for crossing.
