Abstract
| Language | English |
|---|---|
| Pages | 14-18 |
| Journal | Scientia Horticulturae |
| Volume | 124 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 |
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Keywords
- dormancy
- microtubers
- growth
- plant
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Effects of gibberellic acid and carbon disulphide on sprouting of potato minitubers. / Salimi, Kh.; Tavakkol Afshari, R.; Hosseini, M.B.; Struik, P.C.
In: Scientia Horticulturae, Vol. 124, No. 1, 2010, p. 14-18.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Effects of gibberellic acid and carbon disulphide on sprouting of potato minitubers
AU - Salimi, Kh.
AU - Tavakkol Afshari, R.
AU - Hosseini, M.B.
AU - Struik, P.C.
PY - 2010
Y1 - 2010
N2 - Effects of treatments with gibberellic acid (GA(3), 50 mg L-1 for 2 h) or carbon disulphide (CS2, 25 ml m(-3) for four days) on breaking of dormancy and sprouting of potato (Solanum tuberosum L., cvs Agria and Marfona) minitubers of different weight classes (0.3, 0.7 and 1.5 g) were investigated. The dormancy period tended to decrease with an increase in the weight of minitubers, whereas the number of sprouts per minituber, their length and fresh weight and the sprout mass per unit of sprout length of the longest sprout tended to increase with an increase in minituber weight. In both cultivars, applying GA(3) or CS2 advanced breaking of dormancy, but GA(3) was less effective in Marfona than in Agria. Advancing breaking of dormancy was associated with removal of apical dominance and therefore applying GA(3) or CS2 also increased the number of sprouts per minituber, especially in Agria. In Agria, the dry matter content of sprouts from the CS2 treatment was higher than in the GA(3) or control treatments, whereas in Marfona dry matter content of sprouts was highest in the GA(3) treatment. The length of sprouts, fresh weight of sprouts and the sprout mass per unit of sprout length of the longest sprout were significantly enhanced by treating minitubers with GA(3) or CS2 compared with the untreated control minitubers, but there were strong interactions with cultivar and minituber weight. These interactions are important in practical use of dormancy breaking methods. (C) 2009 Elsevier B.V. All rights reserved.
AB - Effects of treatments with gibberellic acid (GA(3), 50 mg L-1 for 2 h) or carbon disulphide (CS2, 25 ml m(-3) for four days) on breaking of dormancy and sprouting of potato (Solanum tuberosum L., cvs Agria and Marfona) minitubers of different weight classes (0.3, 0.7 and 1.5 g) were investigated. The dormancy period tended to decrease with an increase in the weight of minitubers, whereas the number of sprouts per minituber, their length and fresh weight and the sprout mass per unit of sprout length of the longest sprout tended to increase with an increase in minituber weight. In both cultivars, applying GA(3) or CS2 advanced breaking of dormancy, but GA(3) was less effective in Marfona than in Agria. Advancing breaking of dormancy was associated with removal of apical dominance and therefore applying GA(3) or CS2 also increased the number of sprouts per minituber, especially in Agria. In Agria, the dry matter content of sprouts from the CS2 treatment was higher than in the GA(3) or control treatments, whereas in Marfona dry matter content of sprouts was highest in the GA(3) treatment. The length of sprouts, fresh weight of sprouts and the sprout mass per unit of sprout length of the longest sprout were significantly enhanced by treating minitubers with GA(3) or CS2 compared with the untreated control minitubers, but there were strong interactions with cultivar and minituber weight. These interactions are important in practical use of dormancy breaking methods. (C) 2009 Elsevier B.V. All rights reserved.
KW - dormancy
KW - microtubers
KW - growth
KW - plant
U2 - 10.1016/j.scienta.2009.12.026
DO - 10.1016/j.scienta.2009.12.026
M3 - Article
VL - 124
SP - 14
EP - 18
JO - Scientia Horticulturae
T2 - Scientia Horticulturae
JF - Scientia Horticulturae
SN - 0304-4238
IS - 1
ER -