An-Najah National University

Plant production


  • Thursday, August 12, 2010
  • Published at:Journal of Fruit and Ornamental Plant Research
  • The effect of different levels of naphthaleneacetic acid (NAA) and benzyladenine (BA) on shoot multiplication and regeneration of Petunia hybrida was studied. Regenerated shoots from leaf explants were grown ex vitro for analysis of somaclonal variation. Seeds of Petunia hybrida were germinated in vitro on MS basal medium. The seedlings were used as a source of explants for the multiplication and regeneration experiments. For the shoot multiplication experiment, shoot explants taken from germinated seedlings were cultured on MS basal media supplemented with different concentrations of BA (0.1, 0.4, 0.8 mg l−1) and NAA at concentration of 0.1 mg l−1. Highest number of axillary shoot was obtained on medium supplemented with 0.8 mg l-1 BA and 0.1 mg l−1NAA. For regeneration experiments, leaf sections taken from germinated seedlings were cultured onto MS media supplemented with three levels of BA (0.5, 1.0 and 2.0 mg l−1) and 0.5 mg l−1NAA. The highest s
  • Bookmark and Share Email
  • Monday, January 1, 2007
  • Effect of Scarification, Gibberellic acid and Stratification on Seed Germination of Three Pistacia Species
  • Published at:Not Found
  • Germinability of P. atlantica Desf., P. palaestina (Bioss) Post. and P. lentiscus L. seeds as influenced by various treatments was investigated. This included four treatments: Acid scarification for 15 minutes, soaking of acid scarified seeds in 1000 ppm GA3 for 24 hours, stratification of seeds at 5Co for 30 days and control (untreated seeds). Significantly, the highest germination (60%) was obtained for P. palaestina acid scarified plus cold stratified seeds over the control of the three Pistacia species (15, 10, 0%), this percentage (60) was on the same level of significance with the other Pistacia species. Scarifies seeds of P. lentiscus resulted in 13.3% germination, scarified plus GA3 soak of P. lentiscus and P. atlantica Desf. (34, 39.9%), and scarified plus cold stratified P. lentiscus (32%) seeds. Early seed germination was obtained with seeds of P. lentiscus after one week of incubation with scarified plus GA3 (6%) and scarified seeds of P. palaestina (5%), other treated seeds of the three species s
  • Bookmark and Share Email
  • Thursday, January 1, 2004
  • Direct Regeneration in Cyclamen Persicum Mill. Using ‎Seedling Tissues
  • Published at:Not Found
  • In Vitro shoot regeneration and microtuberization of Cyclamen persicum Mill. were studied using seedling tissues. Tuber, leaf and petiole sections of aseptic seedlings of cultivar ‘Concerto’ were established on Murashige and Skoog (MS) basal medium. Three levels of benzyladenine (BA) (4.4, 8.8, 13.3 µM) and four levels of thidiazuron (TDZ) (0.5, 1, 2, 4 µM) were used with the three different explants. All regeneration media were supplied with 5.4 µM naphthalene acetic acid (NAA). No shoot regeneration was observed in media without cytokinins. The greatest percent shoot regeneration (100 %) was obtained from tuber sections cultured on media supplemented with 4.4 µM BA and 4 µM TDZ. No regeneration was obtained with petiole sections. Microtubers were formed with leaf explant. The higher microtuberization response was obtained with leaf explants cultured on media supplemented with 2 and 4 µM TDZ (41.6 and 58.3, respectively). Tuberous structures (microtubers) were
  • Bookmark and Share Email
  • Tuesday, January 1, 2002
  • Optimal Nitrogen Fertilization for Potatoes in the West Bank-Palestine
  • Published at:Not Found
  • A study was conducted in Tubas district in a field located in Wadi Al-Fara’. The area is under irrigation and rich with ground water (Fara’ basin). Potatoe crop was selected as it is one of the most important irrigated crops in the area. Spunta cultivar was used. Two experiments were conducted. The first was conducted to determine the most suitable type of nitrogen source, and the second experiment was conducted to determine the optimal nitrogen fertilization for potatoes. It was found that the type and the amount of nitrogen fertilizer, added to potatoes plants, affected both crop quantity and quality. The vegetative dry weight was increased when nitrogen fertilizers were used. In addition, the use of both urea and ammonium sulfate increases potato yield. Mixing the organic acid fertilizer with ammonium sulfate or urea also increased the production insignificantly. It was found that increasing the amount of nitrogen increases the number of tubers, size, hardness and the density of the tuber. A qu
  • Bookmark and Share Email


Hassan Ahmed Ibrahim Abu- Qaoud
Show Full ProfileEnglish CV
Please do not email me if you do not know me
Please do not e-mail me if you do not know me