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Register a new userStudy the effect of several factors on seed germination of Sophora japonica and Sophora secundiflora
دراسة تأثير مجموعة من العوامل في إنبات بذور نباتي الصفورا اليابانية (Sophora japonica) و التزيينية (Sophora secundiflora)
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نفذ هذا البحث في مخبر نباتات الزينة التابع لكلية الزراعة للموسم الزراعي 2014-2015, بهدف تحديد أفضل الشروط لإنبات بذور نباتي الصفورا اليابانية و التزيينية. تم إخضاع البذور لبعض معاملات ما قبل الزراعة (الغمر بالماء البارد 6oم, أو بالماء الساخن 50 oم, المعاملة بحمض الليمون 2%, أو بحمض الكبريت 25 و 50%), بالإضافة إلى دراسة تأثير بعض أوساط و مواعيد الزراعة. أشارت النتائج إلى أن المعاملات الكيميائية للبذور قد أعطت أعلى معدلات إنبات مقارنةً بالمعاملات الفيزيائية. من ضمن المعاملات الفيزيائية, أعطت المعاملة بالماء الساخن لمدة ساعتين أعلى نسبة إنبات و صلت إلى (36,6, 30%) للصفورا اليابانية و التزيينية على التوالي. من ناحية أخرى, أعطت المعاملة بحمض الكبريت أعلى نسبة إنبات و للنوعين المدروسين (58,3, 63,6%), لكن المعاملة بالتركيز الأعلى (50%) كان له تأثير سلبي على نسبة حيوية البادرات و للنوعين المدروسين, و بشكل خاص الصفورا اليابانية . كما أظهرت النتائج أن البذور المزروعة في الوسط الحاوي على كل من الرمل و التربة و السماد العضوي (1:1:1) حقق أفضل نسبة إنبات و للنوعين المدروسين.
The research was conducted in the ornamental plants laboratory, Faculty of Agriculture, to determine the best seed germination conditions of Sophora japonica and S. secundiflora. Different seed pre-treatments (cold ater (6oC) and warm water (50oC) immersing, Citric acid (2%) and Sulphoric acid (25, 50%) stratification) were experimented. The effect of different culture mediums and sowing times were also investigated. The results indicated that the chemical pre-treatments represented the highest relative germination rates compared to the physical pre-tretments. Among the physical pretreatment, the seed immersed in hot water for 2h showed the highest germination percentage (38,6 – 30%) for S. japonica and S. secundiflora respectively. While, the seed treated with sulphoric acid represented the best germination percentage for the tow species (58,3 – 63,6%). Nevertheless, the increase of the sulphoric acid concentration had a negative impact on survival plantlet rates for the tow species, specially for S. japonica. The results showed that the seed sowing in sand with soil and organic mature (1:1:1) medium realized the best germination percentage for the tow studied species.
References used
AHIGREN, C. Survivorship of Sophora tomentosa on the reef islands of Mo'orea, French Polynesia Student Research Papers, 2009, 10 Mars 2015, https:// escholarship.org /uc/item/7tg1m3wr
AHMAD, F.; ALI KHAN, M.; KHAN, R.; NAZ, F. AND ALAM, M. Effect of different soil media and irrigation intervals on the growth of aerial plant parts of Sophora secundiflora. Asian journal of plant sciences, Vol.1, No.(2), 2002, 91-92
ALILOO, A.A AND MUSTAFAVI, S.H. Does physicochemical pre-treatments can alleviate germination and dormancy of Sophoraalopecuroidesseeds? Azarian Journal of Agriculture AJA, Vol. 1, No.(1), 2014, 6-10
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