TITLE

Effects of Different N Fertilizer Rate on Starch Percentage, Soluble Sugar, Dry Matter, Yield and Yield Components of Potato Cultivars

AUTHOR(S)
Kandi, Mehdi Aghighi Shahverdi; Tobeh, Ahmad; Gholipoor, Abdolghayoom; Jahanbakhsh, Soodabeh; Hassanpanah, Davood; Sofalian, Omid
PUB. DATE
September 2011
SOURCE
Journal of Applied Sciences Research;Sep2011, Vol. 7 Issue 9, p1846
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nitrogen (N) fertilizer management is a challenge in potato production. Therefore, a study was carried out on the effect of different nitrogenous fertilizer (urea) levels on yield, yield components and tubers quality in terms of starch and dry matter percentage of different potato cultivars in 2010. It was a factorial experiment based on a Randomized Complete Block Design with three replications. The main plot was three fertilizer levels (0, 100 and 200 kg elemantal N/ha) and the sub-plot was potato cultivars (Agria, Marfona, clone B5 and clone B6). The results showed that the main effect of cultivar was significant on tuber mean size, fresh tuber yield-ha-1 and starch content at 1% probability level. Also, the main effect of N fertilizer was significant on tuber number-plant-1 tuber mean size, fresh tuber yield-ha-1starch content and dry matter content at 1% probability level. Means comparison showed that the application of 100 kg N/ha had a significant effect on tuber number-plant-1, fresh tuber yield, starch content and dry matter content and ranked in the superior group. In terms of starch percentage, clone B5 with mean starch percentage of 14.42 ranked in the superior group and in terms of dry matter percentage, cv. Marfona and clone B5 ranked in the superior group a together. With the increase in N fertilizer level from 100 to 200 kg/ha, not only reduced fresh tuber yield and other traits, but also there was a significant decrease in measured traits.
ACCESSION #
69735285

 

Related Articles

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics