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Journal of Biological Sciences

Year: 2009 | Volume: 9 | Issue: 3 | Page No.: 243-248
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Authors

Davoud Hassanpanah

Mohsen Khodadadi

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Research Article

Study the Plantlet Age Effect and Planting Beds on Agria Potato Mini-Tuber Production under in vivo Condition

Davoud Hassanpanah and Mohsen Khodadadi
This experiment was done about suitable composition of planting bed and plantlet age in greenhouse for increasing mini-tubers number and weight per plant. This research was conducted in Ardabil in 2007 and 2008. Plantlets of potato Agria cultivar were grown under in vitro condition. Then plantlets were transferred to greenhouse in four ages of plantlets (20, 30, 40 and 50 days) on a randomized complete blocks design with four replications in greenhouse. During growth period in greenhouse, were measured the traits as plant height, main stem per plant, mini-tuber number, weight and average weight per plant and uniformity per plantlets. The results of combine analysis of variance showed that there were significant differences between years as mini-tubers weight per plant, mini-tubers average weight per plant, between plantlet age as mini-tubers number and weight per plant, mini-tubers average weight per plant and stem number per plant. Interaction of years and plantlet age were significant on mini-tubers weight per plant. Plantlets, which transferred to greenhouse after 20 and 30 days, showed higher mini-tubers number and weight per plant in compare with other ages. There was positive significant correlation between mini-tubers number with mini-tubers weight per plant and mini-tubers average weight per plant. After, the better plantlet age selected in greenhouse and plantlets age of 30 days cultured in 12 different planting beds prepared from Iran and Finland reigns on the basis of ten replications completely randomized blocks. Statistical analysis showed that the maximum number and average weight of mini-tuber per plant produced by use of three planting beds of Iran (Ardabil Neogen soil and forest peat mass with large Zeolite) and Finland (Biolan peat mass with large Zeolite).
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