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Register a new userأثر الملوحة في إنبات بذور بعض طرز اللوز ونمو الغراس الناتجة عنها
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Tishreen University رسالة ماجستير
Publication date
2016
fields
Agricultural Engineering
and research's language is
العربية
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تعد شجرة اللوز من الاشجار الهامة والمتميزة اقتصاديا في سوريا لأنها تعتبر الموطن الأصلي لشجرة اللوز . الشجرة متوسطة حساسة لدرجات الحرارة المنخفضة ولا تتحمل الرطوبة الزائدة لذلك تزرع في مناطق محددة من العالم
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References used
ابراهيم عبد الباسط عودة ( 2011) الإجهاد الملحي جامعة البصرة العراق
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أجري هذه البحث في كلية الزراعة جامعة دمشق خلال الموسم الزراعي 2012-2013 بهدف دراسة تأثير بعض المعاملات في انبات بذور ونمو شتلات اللوز الكورشنسكي واللوز الشرقي
This research was carried out during two seasons 2014 – 2015 to study effect of seed
coats on germination of endocarp, seed and embryos of two wild genotypes (M1, M2) of
Mahaleb rootstock (Prunus mahaleb L.) prevailing in Alhaffa area, Lattakia. Th
e
experiments were done at Lattakia Scientific Agricultural Research center and Faculty of
Agriculture at Tishreen University.
The Results of the seeds planted on agar 0.7% in dark at 15 C° showed that no
germination of the M1 endocarp VS late and low germination at 10% for the M2 endocarp
starting after 98 days. As for seeds, the germination was (66.66%) and (53.33%) for M1
and M2, respectively. Removal of the woody coat (endocarp) and seed coat makes the
germination faster. the embryos germination was (80%) and (60%) for M1 and M2,
respectively.
The effect of salinity and the treatment with fungicide on seed germination of Cupressus
sempervirens L. was investigated.
Five concentrations of salinity (0, 0.5, 1, 5 and 10%) were used. One part of the seeds was
treated with fungicides (Benomyl
), while the other part was germinated without fungicide
treatment. The results showed that seed germination was reduced by salinity, but the reduction was
more pronounced without fungicide and with salt concentration, the seeds didn't germinate at 5 and
10% NaCl.
Despite the decrease of germination indices with the increase of salt concentrations, the
statistical results didn't show significant differences in salinity concentrations and the control in
germination speed without fungicide, but they were significant with the fungicide. The statistical
results showed significant differences between the presence and absence of fungicide in all
treatments
The objective of this study is to compare the effect of five different Nacl concentration (0,50,100,150,200 mM) on seeds germination and seedling growth of two cultivars of soybean (sb-44,sb-172).
Seeds were germinated in petri dishes with sterile
filter paper moistened with 10 ml of test solution at 25 c˚ in dark .
The obtained results showed that germination percentage , length of root and hypocotyl were decreased with the increase of the Nacl concentration in the medium. The best values was from cultivar sb-44 .
After seven days of incubation , significant differences were observed between control and treated seeds .
Germinated seeds were subcultured on basal Murashige and Skoog medium solid at the same Nacl concentration . The roots growth was mor affected by 200 mM Nacl compared to seedling growth .
Plantlets were transfered into pots with nutrient soil , irrigated with saline water and were adapted at laboratory . we obtained good plants grew to maturity in 10- 12 weeks .
نفذ البحث خلال عامي 2009-2010 في مركز أبحاث جامعة الفرات حيث زرعت بذور اربعة اصناف من النخيل ( البرحي- الخستاوي- المجهول - الزاهدي وذلك لمعرفة تأثير الإجهاد الجفافي والملحي في النسبة المئوية لانبات البذور
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