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Register a new userEvaluation of fertility and some of growth and bearing Characters for some introduced pear cultivars in Sweida governorate
تقييم الخصوبة و بعض خصائص النمو و الإثمار في بعض أصناف الأجاص المدخلة إلى محافظة السويداء
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نفذ البحث في قسم بحوث التفاحيات و الكرمة في السويداء خلال العامين - 2015 2014 ، حيث تمت دراسة أربعة أصناف أجاص مدخلة إلى محافظة السويداء هي آنجو، و بارتلت، و بارتلت أحمر، و الصنف بيري بوسك، من حيث أعضاء الإثمار، أطوال الطرود الخضرية، الخصوبة، متوسط وزن الثمرة، و الإنتاجية على مستوى 0,05 > P.
This investigation was conducted at the Pome and grapevine Division in Sweida governorate in 2014-2015. Four introduced pear cultivars (Anjou, Bartlett, Red Bartlett and Beurre Bosc) were studied, through fruiting and growth organs, fertility, average of fruit weight, and the yield at P< 0,05.
References used
ANTKOWIAK, W, ANDRZEJ, W, LUKASZ, W, and GRZEGORZ, I, 2013- Assessment of cross compatibility of pear (Pyrus communis l.) cultivars on the basis of pollen tube observations and analysis of the s-rnase gen, Acta agrobotanica, vol 66(2), 29–34
BESSHO, G, 2008- Trends in European Pear Production and Cultivar Choice in Japan, Acta Hort., vol 800, 349-352
CAMPBELL, J, 2002- European Pear Varieties. Orange Agricultural Institute, Orange, NSW, 1-22
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20 local and introduced varieties of pear grown in Sweida during 2007 to
2010 were assessed in terms of flowering time, maturity time, accurate
morphological characterization for shoots, leaves, flowers and fruits and fruit
chemical analysis (tota
l soluble solids, total sugar and tetratable acidity) as well
as to determine firmness of fruit flesh and tree yield.
Results showed that flowering time was at mid April in most varieties, and
the varieties were divided into three groups according to their mature date:
early varieties maturated during July, mid varieties maturated during August
and late varieties maturated during September. However, A variety of
Conference was required artificial ripening.
This research was carried out in the laboratories of the Atomic
Energy Commission Molecular Biology and Biotechnology
Department in Damascus to study the molecular characterization of
five of local and introduced grapes varieties which collected f
rom
the Pome and Grapevine Research Center in Sweida using 20
primer pairs of SSR.
this study was carried out during summer 2014 in Siano Research Station- the
Agricultura Research Center in Lattakia . Four varieties of Cowpea: Dolicho (entrance),
Blackey (entrance), Almaarefa (Local) and local
cultivar were planted and compared
concerning the vegetative growth , productivity
and quality of green pods.
The results showed the superiority of Almaarefa cultivar in some vegetative traits
:plant hieght (166.66) cm compared with local cultivar 116.58 cm ,number of leaves on
plant and( 27) leaves and( 17) leaves for local cultivar, and plant leaves area( 7840.23)
cm2 for Almaarefa comparing with( 4499.75) cm2 for local cultivar
As well as it had a maximum pod length( 16.71) cm and highest grain number of
pod( 9.44) ,while Blackey cultivar was the most superior comparing with
other cultivars in productivity( 0.6229) kg \ m 2 and pod's number/m2 ( 81.069)
Whereas Almaarefa had the lowest productivity( 0.4935) kg/m2 and lowest pod's number
( 65.89)pod/m2.
The results also showed that the local cultivar had the most vitamin C content
comparing with other cultivars by( 23.765%) and in dry matter by (15.38%) , while
there was no significant differences between protein green pods content.
This study was conducted in a pot experiment during 2012-2013 to investigate the
response of four Syrian bread wheat cultivars (Sham 4, Sham 6, Bohouth 4, and Bohouth
6) to increasing levels of nitrogen fertilization (0, 40, 80, 120, 160, and 200 k
g N/h).
Nitrogen was added in two equal split applications, half was added as urea (46% N) at
sowing, and the second half was added as ammonium nitrate (33.5 % N) at tillerring and
stem elongation stage. Some growth and productivity parameters were investigated.
Nitrogen application led in all four cultivars to significant increase in number of
tillers, productive on the expense of non-productive tillers. This was accompanied by a
significant increase in number of spikes on plant and number and weight of grain in the
spike. Sham 6 had a higher number of productive tillers at nitrogen rate of application 200
kg N/h, whereas Bohouth 4 had a greater height for main stems and tillers compared to
other cultivars.
Grain productivity increased with the first level of nitrogen application (40 kg N/h)
by a rate of 53, 57, 55, and 48 % for cultivars Sham 4, Sham 6, Bohouth 4, and Bohouth 6,
respectively. Grain yield reached with nitrogen application of 200 kg N/h to 15.89, 15.96,
13.6, and 15.7 ton/h, respectively. Cultivars differed significantly in grain yield within
each nitrogen application level. Grain yield for Bohouth 6 got closer to Sham 4 and Sham
6 with nitrogen application reaching 160 kg N/h, and after which became not significantly
different, while grain yield of Bohouth 4 remains significantly lower compared to all
cultivars.
This study was carried out at the Agricultural Scientific Research center In Sweida -
GCSAR to study the effect of potassium sulfate and organic manure on some of soil
characteristic in addition to tree growth vigor and fruit traits of Starking del
icious apple
cultivar. The results revealed significant effect in reducing the (pH) of the soil in the three
treatments; potassium sulfate fertilization, organic manure fertilization and application of
potassium sulfate and organic manure together which were (6.608), (6.708) and (6.558),
respectively, in the comparison with the control (6.768). In addition, significant differences
were shown in the (EC) between the former treatments (0.1532 ds / m), (0.1692 ds / m) and
(0.0937 ds / m) compared to the control (0.2217 ds / m). Concerning growth vigor and fuit
traits, the results showed a significant increase in the average of shoot length in the
previous treatments (66.43, 77.33 and 71.37 cm, respectively), compared to the control
(59.37 cm), while showed a significant increase in leaf area in organic manure treatment
and potassium sulfate with organic manure together (35.54 and 37.21 cm 2, respectively),
compared to the control (30.54 cm 2). The results of analysis of variance in fruit firmness
showed higher significant variation of potassium treatment (8.477 kg / cm 2) than the
other treatments which, also revealed significant increase of total soluble solids
(16.82%,15.2% and15.37%,respectively) compared to the control (14.23%), and a
significant increase in total sugars and in percentage of treatable acidity. Consequently, the
result showed that the addition of soil fertilizers treatment contributed to improve some of
soil characters, tree growth vigor and some of the quantitative and qualitative traits of
apple fruits.
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