إكثار الزيتون باستخدام زراعة القمة النامية يهدف هذا البحث لدراسة تاثير عوامل مختلفة في اكثار وتطور العقل المخبرية من الزيتون صنف جلط تحت ظروف الزراعة المخبرية
A successful and detailed in vitro propagation system for rapid
micropropagation of three apple rootstocks: MM ١٠٦, EM ٧ and M ٢٦ has
been developed. Shoot tips and axillary buds excised from field-grown trees
were used as explants, which were surface-disinfected with mercury bichloride,
or with solution of sodium or calcium hypochlorite followed by three rinses
with sterile distilled water.
In vitro rooting was significantly increased by adding indolebutyric
acid (IBA) to medium and rooting was improved by adding ١,٠ g/L activated
charcoal or ٠,١ g/L polyvinylpyrrolidone (PVP). Indoleacetic acid (IAA) (٠,٠ to
٤,٠ mg/L) was not effect
ive for rooting except when used with ٠,١ g/L PVP. A
٩٥٪ survival was achieved when plants were acclimatized ex vitro. Such
procedures could help significantly in clonally propagating bitter almond and
conserving its germplasm.
Some factors which affect in vitro propagation of sour orange (Citrus
aurantium. L.) were studied on Murashige and Skoog medium. Medium
containing ١,٠ mg/L ٦-Benzylaminopurine (BA) was satisfactory for shoot
multiplication, Dichlorophenoxyacetic acid (٢،٤-D) was not effective for shoot
proliferation and it enhanced callus formation.
تعد شجرة الزيتون من أقدم الأشجار التي عرفها الإنسان السوري و مارس
زراعتها من آلاف السنين، و قد تطورت هذه الزراعة تطورًا كبيرًا مذ ذلك الوقت.
تتأثر زراعة الزيتون بمجموعة من العوامل يأتي في مقدمتها الظروف البيئية
الطبيعية ممثلة بالشروط المناخية ( ال
حرارة، الأمطار، الرياح، الرطوبة، الضباب،
البرد و الصقيع) و التربة و أنوعها، إلى جانب العوامل البشرية ممثلة بإعداد الأرض
و الري و التسميد و عمليات خدمة الأشجار.
An experiment was conducted in agricultural college arboretum that belong to
tishreen university on okra during the growing season of 2013-2014 to investigate the
effect of spraying by organic fertilizers and growing point pinching on the growth an
d
yield.
The experiment include 8 treatments as control (without spraying by organic
fertilizers or growing point pinching), two kinds of organic fertilizers (ultra humic acid and
amino vega) with or without growing point pinching. Plots were completely randomized
over the experimental area having four replicates for each treatment. Each replicate
contained 14 plants.
Results showed that the highest values of vegetative growth parameters are stem
length branch number ,leave number per plant due to the interaction between pinching of
growing point and spraying by ultra humic acid and amino vega . The experiment results
revealed also ,that the highest yield and The largest number and weight of fruits was
produced from growing point pinching and spraying by ultra humic acid and amino vega,
compared to all other treatments.