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Register a new userThe effect of some experimental treatments on the germination of Cupressus arizonica seeds. Cupressus arizonica L.
تأثير بعض المعاملات التجريبية في إنبات بذور السرو الفضي Cupressus arizonica L.
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يهدف البحث إلى دراسة أثر معاملات مختلفة في تنشيط و زيادة نسبة إنبات السرو الفضي لاستخدام شتلاته في مشاريع التحريج, حيث تم الحصول على البذور من المخاريط الناضجة و إخضاعها لمعاملات مختلفة مع البقاء على الشاهد ثم زراعتها في مكررات ضمن أكياس بولي إيتلين مع مراقبتها و حساب مؤشرات الإنبات. أظهرت النتائج أن معاملة النقع بحمض الستريك 0.1% مع تنضيد بارد 30 يوم على درجة حرارة ( 5 - 4 مْ ) لبذور السرو الفضي قد أعطت أعلى نسبة إنبات 75%, تلته نسبة إنبات معاملة النقع بحمض الكبريت 0.1% و هيدروكسيد الصوديوم 0.1% مع تنضيد بارد 30 يوم حيث أعطت على التوالي ((53%-60% و لم تكن بينهما فروق معنوية, في حين أن معاملة النقع بماء الصنبور 24h أعطت نسبة إنبات 36% و معاملة الشاهد أعطت نسبة إنبات أدنى بالمقارنة مع باقي المعاملات الأخرى حيث أعطت فقط 9%. كما أن معاملة النقع بحمض الستريك 0.1% مع تنضيد بارد 30 يوم تفوقت على باقي المعاملات في التأثير على ارتفاع النبات عند نهاية التجربة.
This research aims study the effect of different treatments in activate and increase percentage of germination Cupressus arizonicaL.seeds to use plants in forestation projects, seeds were get from mature conifers, and tested by different treatments with control, then cultured within polyethylene bags many times to calculate indicators of germination. The results showed that the soaking the seeds Cupressus arizonicaL. in citric acid 0.1% with cold wet stratification for 30 days at 4-5c gave higher germination percentage 75%.The treatments of the soaking seeds in sulfuric acid0.1% and hydroxide sodium 0.1% with cold wet stratification for 30 days gave respectively 60%-53% .But superiority was not significant. Other treatments; soaking the seeds in tap water 24h with cold wet stratification for 30 days gave only 36%.But the control treatment gave lower germination percentage of all just only 9%. The treatment of soaking seeds in citric acid 0.1% with cold wet stratification for 30 days surpassed the rest of the treatments in effect on plant height at the end of the experiment.
References used
ABDEL- AZIZ, A.E-Set and N.A. ANTON . Respons of soybean to in oculation, Foliar spray of citric acid and miconutrints mixture minufiya J. Agri Res, 30,1,2005,215-235
ABDE-AL, FATONS.Effect of furea and some organic acids on plant growth, fruit yield and its quality of sweet pepper (copsicam anmuns). RES.J.Agri.And Biol.sci,5, 4,2009,372-379
ADAMS, RP,JA BARTE, D. Thorn brug,and A.Allgood.Geogaraphic phicvariation in the leaf essential oils of Hespero cyparis arizonica and H.glabra.phytologi, 923,2010,366 – 387
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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 effect of different treatments on carob seed germination was studied.
The results showed that, seed scarification was the most effective method in
increasing germination rate as well as the use of concentrated sulfuric acid for 30 minutes
reac
hing 100%, followed by the treatment with alcohol for 60 minutes, and immersing
seeds in hot water for 60 minutes.
The results also indicated that the speed of germination when seeds were scarified
was the best (I.D.=14.5), followed by the treatment with concentrated sulfuric acid for 30
minutes (I.D.=21.5), alcohol for 60 minutes (I.D.= 38) and immersing seeds in hot water
for 60 minutes (ID.=60).
The results shows that, the cold wet of Canary pine seeds stratification for 15 days at (4-5c◦),gave higher germination percentage( 91.11%). The treatment of soaking seeds with superiority was not significant. Other treatments; the cold wet strati
fication of seed for(30) days at(4-5c◦), soaking seeds with tap water for (48 h.) and the control, all gave lower germination percentages, but still higher than (60%).
The treatment of soaking seeds with GA had significant superiority in the speed of germination (2.32 day ∕ seed), but it was not significant with the cold wet stratification.
This study was carried out during 2014-2015 in two different nurseries located in
University nursery (Lattakia governorate) and Salhab nursery (countryside of Hama
governorate). Seeds were taken from two sites of Lattakia governorate (Mashqita– Bsn
ada)
where Cordia myxa exists as exotic species in some coastal regions and three treatments in
addition to control were examined .The results showed that there is an effect of
scarification of seeds on investigated treatments and were significant differences in
germination percentage in both sites which recorded 55% in university nursery and 35% in
Al-Ghab nursery. While there were not contrast between the soaking in boiling and tap
water treatments on the seed germination energy in Al-Ghab nursery. Scarification
treatment gave higher value of germination energy 25% in Al-Ghab nursery and 21.66% in
university nursery , while the same treatment decreased germination velocity compared to
other treatments in university nursery which seed needed in average ( 8,01 day) whereas
the same treatment increased germination velocity in Al-Ghab nursery which needed (1,54
day). Finally, regarding to cutting ,There is not observe to any positive influence to
cuttings which treated in ABA hormone (1g/l) for (10,20,30 m). It could be deduced that
there were changes in germination percentage, germination energy and germination
velocity in two sites which appeared to be a Preliminary indication of impact of the some
dormancy breaking treatments on investigated indications of Cordia myxa Forsk. species .
This investigation was done to study the effect of spray for two times with
CaCl2 0.5% and 1%, high potassium fertilizer and dipping with 2% CaCl2, in
addition to packaging with polyethylene films on the storability of pear fruits
"Coscia C.V". Th
e results showed the significant superiority of high potassium
fertilizer treatment on the other treatments concerning total and single sugars
after harvesting time, while there weren't significant differences between the
other treatments concerning the remaining indicators. After four months of
storage, the packaging treatments were able to the significantly reduction of
weight loss, in addition to preserving the firmness and total soluble solids in the
comparison with unpackaged ones, the average of weight loss in unpackaged
treatments was 15% and 0.65% in packaging treatments, which led to stop the
storage of unpackaged treatments and continue packaging treatments until 7
months. After 7 months, the results showed that the dipping with 2% CaCl2
revealed the high weight loss, while was the least with high potassium fertilizer
treatment, on the other hand there were no significant differences between
treatments for firmness, total soluble solids and tetra table acidity, while total
and single sugars showed significant differences between treatments. Moreover,
the sensory tests assured the importance of packaging with CaCl2 treatments to
improve storability and quality of pear fruits, which CaCl2 1% packaging
treatment got the highest values for most of sensory tests.
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