Present status of field diseases and morphological characteristics of recommended potato varieties in Bangladesh
2002
Hossain, M. | Ali, M.S. | Akhtar, M.I. | Huq, Z.N. | Hossain, A.E. (Tuber Crops Research Centre, Gazipur (Bangladesh)
A study was undertaken to determine the present status of ten recommended potato varieties in Bangladesh. It was found that incidence of potato leaf roll virus (PLRV), potato Y potyvirus (PYV), scab, tuber rot and cutworm were significantly different in different varieties. Similarly, dry matter and starch percentage, number of tuber per plant and yield per plant varied significantly with the varieties. The variety Ailsa showed lowest infection of PLRV followed by Dheera and Cardinal and the highest infection was recorded in Patrones. The varieties Arinda, Chamak, Dheera, Heera and Kuroda were free from PYV infection. Whereas, Multa showed the highest infection of PYV. Lowest infection of scab was recorded in the variety Dheera and it was highest in Ailsa. The appearance of foliage was good looking in all varieties except the varieties Multa, Patrones and Ailsa. Varieties Ailsa, Chamak and Dheera showed late maturity as compared to other varieties. The highest dry matter and starch content were recorded in variety Dheera and it was lowest in Kuroda. The highest yield per plant was obtained from Chamak followed by Ailsa, Dheera, Heera and Cardinal and it was lowest in variety Patrones. Considering all aspects in both the seasons, two varieties namely, Chamak and Dheera were noted best performers in terms of disease severity, plant growth and yield.
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