Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 1
2013, pp. 87-95 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Mani, Bettaieb, Zheni, Doudech
and Hannachi
ORIGINAL
ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 4
Effect of Thiourea on Yield
and Quality of Potato (Solanum
tuberosum L.)
Mani F.1*, Bettaieb T.2,
Zheni K.1, Doudech N.1, and Hannachi C.1 1 Institut Supérieur Agronomique Chott- Mariem.
Tunisia. 2 Institut National Agronomique de Tunis. Tunisia.
*E-Mail: ferdaousmani78@yahoo.fr
Received October 9, 2012
A field experiment
was carried out to study the effect of five concentrations (0, 250,
500, 750 and 1000 mM) of thiourea application on mother tubers on yield
and quality attributes of harvested potato, variety Spunta in the
region of Chott-Mariem in Tunisia. Treated tubers (Ø = 50 mm) were
planted in field after breaking dormancy at a spacing of 80 cm x 30 cm
according to completely randomized design (CRD) in three replications.
Quality attributes of potato tubers especially fresh matter and dry
matter of plant, total reducing sugars in leaves, tuber yield, number
and diameter of tubers per plant and number of sprouts per tuber was
measured. Soluble proteins and starch content in potato tubers were
also quantified.
In general we noted that application of thiourea showed significant
influence on yield and on quality of tubers comparing to control.
Maximum tuber yield per plant, maximum number of tubers per plant and
maximum starch content was recorded with 250 mM of thiourea. Moreover,
highest dry matter of potato plant was found also at this
concentration. While increasing dose of thiourea thereafter it showed
slight significant improvement and do not affect significantly the
diameter of tubers comparing to control.
