- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
EFFECT OF KINETIN AND ALAR TREATMENT ON PLANT HORMONES CONCENTRATION DURING THE DEVELOPMENT OF STOLONS TO TUBERS IN HIGH TUBER SEEDS OF POTATO | ||
| Iraqi Journal of Biotechnology | ||
| Article 1, Volume 9, Issue 3, 2010, Pages 592-606 | ||
| Abstract | ||
| This study was setup to measure the concentration of Auxins, Gibberellins, Zeatin and Abscisic Acid hormones for two potato varieties Diamant and Desiree during the development of stolons to tubers. The study include effect of the soaking minitubers which were weighing 50–60g and stored for two months on 4oC ±1 in a mixture solution of kinetin (100mg/L + Alar 500mg/L) for one hr. in addition to the control (soaking in distilled water) on the development and growth of the stolons to tuber, the treatment were incubated on 18oC for 5 months. The concentration of plant hormones were measured during the development of stolons to tubers stages (P1, P2 and P3). The result revealed a reduction in ABA, IAA and Zeatin concentration at the early stage of stolons growth(P1)while the highest concentration was achieved in(P3)stage (The full tuberization to reach 0.88,6.40 and 12.32µg/kg fresh weight) respectively. Moreover the highest concentration of GA3 was achieved in P1 stage 6.03µg/kg fresh weight and its decreased gradually as the tuber increased in size in (P2) to reach the lowest concentration 1.61µg/kg fresh weight in P3 stage. Furthermore, the treatment (100mg Kinetin+500mg Alar/L) increased the concentration of ABA, IAA and Zeatin to reach (0.74,6.31,15.50µg/kg fresh weight) respectively as compared with the control treatment which gave( 0.43,5.4 and 7.18µg/kg fresh weight) respectively, while the concentration of GA3 decreased as compared with the control treatment to reach 3.41 and 4.42µg/kg fresh weight respectively. The concentration of growth promoter hormones GA3,IAA and Zeatin increased during the storage period to reach(6.76,5.29,3.31µg/kg fresh weight) respectively while the ABA concentration decreased as compared with its concentration before the storage to reach 0.50 and o.77µg/kg fresh weight respectively. Concerning to GA3 concentration, it was increased in Diamant tubers as compared with Desiree tubers to reach 6.10 and 1.82µg/kg fresh weight respectively,while the concentration of ABA was decreased to reach 0.48 and 0.79µg/kg fresh weight respectively. | ||
| Keywords | ||
| KINETIN; TUBER SEEDS | ||
|
Statistics Article View: 186 PDF Download: 111 |
||