PSB-Ct8 Cotton Variety
PSB-Ct8 was developed by then Cotton Research and Development Institute, now Cotton Development Administration. It was approved and released for commercial production by the National Seed Industry Council on 23 February 1999.
PSB-Ct8, a G. hirsutum variety, is a product of the cross between Quebracho and PAN 575. It is the first variety that was crossed locally. An outstanding yielder with superior fiber qualities, it is an excellent substitute once the currently recommended varieties deteriorate.
Yield Performance and Agronomic Characters
PSB-Ct8 has a potential seedcotton yield of 2.232 metric tons per hectare, bears an average of 10 bolls per plant, with each boll weighing 5.86 grams per boll on the average.
It reaches a height of 100.88 cm at maturity and flosses at 113 days after emergence. It has an earliness index of 25.89 percent.
Lint Recovery and Fiber Properties
PSB-Ct8 has an average lint recovery of 39.76%. It has medium to long fibers measuring 30.39 mm, average fiber strength of 19.45 g/tex, and average fiber fineness of 4.58 µg/in.
Resistance to Pests
PSB-Ct8 is highly resistant to damping-off disease caused by the organism Sclerotium rolfsii during the seedling stage. It is likewise resistant to Fusarium wilt disease, which attacks the cotton plant at later growth stages. It is also moderately resistant to leafhopper.
Adaptability
PSB-Ct8 is recommended for planting in all cotton production areas in the country under the following cultural management:
| Land preparation | Conventional |
| Planting distance | 100 cm x 30 cm with 2 plants per hill |
| Fertilizer rate | 120-30-30 kg N-P205-K20/ha |
| Population Density | 88,888 plants/ha |
| Weeding | Off-barring and hilling-up plus spot weeding |
| Irrigation | Drip and furrow method |
| Pest control | Integrated pest management |
| Harvesting | Handpicking |