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Register a new userEvaluation of some local vine Hybrids
تقييم بعض هجن الكرمة المنتجة محلياً
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Tishreen University رسالة ماجستير
Publication date
2013
fields
Agricultural Engineering
and research's language is
العربية
Created by
Shamra Editor
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أجريت هذه الدراسة في مركز البحوث العلمية الزراعية في بوقا- اللاذقية على ثمانية هجن كرمة منتجة من قبل د. محمد محفوض في بداية دخولها في طور الإثمار وذلك خلال موسمي النمو( 2010-2011) وهدفت الدراسة إلى : توصيف هذه الهجن توصيفاً مورفولوجياً وبيولوجياً وفسيولوجياً ودراسة جدواها الاقتصادية واستخداماتها المستقبلية.
This study was conducted at the Agricultural Scientific Research Center in Buqa - Lattakia on eight vine crosses produced by Dr. Muhammad Mahfoud at the beginning of its entry into the fruiting phase during the two growing seasons (2010-2011) and the study aimed to: characterize these hybrids morphologically, biologically and physiologically, and study their economic feasibility and future uses.
References used
الديري نزال .عبد العزيز ديوب . محمد كردوش . وليد سحار 1990 بساتين الفاكهة زراعتها ورعايتها وإنتاجها - منشورات جامعة حلب - الجمهورية العربية السورية
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This study aimed to evaluate the F1 non ripening tomato hybrids for yield
components and some other biological and morphological traits in the green
house.
This investigation included the comparesion of six tomato hybrids during
tow years (1999,
2000). Under the green-house conditions.
It has been found significant differences among the investigated hybrids
regarding to yield, plant hight, leaves number, flowers number, and the periods
from germination to flowering, germination to ripening, and flowering to
ripening, but, there was no any significant variation in fruits number and fruit
setting rate.
The research was conducted at the Maize Researches Department, General
Commission for Scientific Agriculture Researches (G.C.S.A.R.) Damascus,
Syria during the summer growing seasons of 2010, 2011 and 2012. Treatments
were arranged in a Randomized
Complete Blocks Design with three
replications. The research aimed to evaluate genetic parameters for some traits
like days to 50% silking, plant and ear height, ear length, ear diameter, number
of rows per ear, number of kernels per row, 100 kernel weight and grain yield
per plant using generations means analysis of two maize hybrids (IL.292-06 ×
IL.565-06, IL.459-06 × IL.362-06) to detect epistasis and estimates of mean
effect [m], additive [d], dominance [h], additive × additive [i], additive ×
dominance [j] and dominance × dominance [l] parameters. Results showed that
the additive - dominance model was adequate to demonstrate the genetic
variation and its importance in the inheritance of most studied traits. Nonallelic
gene interaction was operating in the control of genetic variation in most
studied traits. The signs of [h] and [l] were opposite in most studied traits for
the two crosses. Also, the inheritance of all studied traits was controlled by
additive and non-additive genetic effects, but dominance gene effects play the
major role in controlling the genetic variation of the most studied traits,
suggesting that the improvement of those characters need intensive selection
through later generations. The phenotypic variations were greater than
genotypic variations for all studied traits in the two crosses, indicating greater
influence of environment in the expression of these traits. Highly significant
heterosis relative to mid and better parents, respectively was found for all
characters, and this accompanied with inbreeding depression for all traits.
Narrow sense heritability and genetic advance were low in most of the traits
due to the dominance of non-additive gene action in controlling the genetic
variation of the most studied traits and this predict low to medium values of
genetic advance through selection process.
The research was carried out at Tal Hedya Research Center in Aleppo, General
Commission for Agriculture Scientific Research (GCSAR), Syria, during 2011
and 2012 seasons. Seven genotypes of cotton were used, and complete diallel
hybridization was m
ade to study general and specific combining ability of some
productivity traits (sympodial branch number, actual boll number and seed cotton
yield). General combining ability (GCA) indicated that the parental genotype
Cherpan432 had a high significant GCA for sympodial branch number and actual
boll number, but the parents Aleppo118 and Deir El-Zour22 had the high GCA for
seed cotton yield. This is a clear indication that these parental genotypes had the
largest number of additive genes action, which plays important role in the inheritance
of the above-mentioned traits. The estimation of SCA values showed favorite and
high significant values in many hybrids resulted from parents, which had highly
significant GCA, which means that the gene action type is (additive x additive), and
this refers that these hybrids possessing the largest number of additive genes. High
heritability broad sense refers to importance of genetic variance in the inheritance of
all characters, but heritability in narrow sense values were low in general, indicating
the importance of dominance and epistasis genes in the inheritance. According to
this result it is recommended to follow the cross method for improvement of the
studied traits.
Heritability and genetic advance of some grain yield components and some
morpho-physiological traits in 36 sorghum hybrids [Sorghum bicolor L.
Moench] produced by top-cross using cytoplasmic male sterility were
estimated.
Narrow-sense heritabilit
y for plant height and head length were relatively
high in Damascus location (65% and 56%) respectively, but the narrow-sense
heritability of all characters in Raqqa location were low, the range was from
3% for threshing percentage to 34% for plant height, and from 22% for seed
weight/head to 60% for plant height in the combined analysis.
Genetic advance estimates were relatively low for all characters, the range
was from 0% for 100 seed weight to 28.3% for plant height (Damascus
location), and from 0.02% for seed numbers/head to 15.2% for plant height
(Raqqa location), and from 5.8% for the number of days to flowering to 26.5%
for plant height (combined analysis).
Some characters such as plant height and head length showed relatively
high values of heritability, but exhibited low values of genetic advance.
Therefore other characters had low heritability coupled with low values of
genetic advance indicated predominance of non-additive gene action. This
result implies the need for several generations of selection to improve grain
yield components and other traits.
The aim of this study was to control the content of some commercial products containing amino acid (Arginine) available in the local market in addition to other products containing creatine and protein. Three methods were used for quantitative determ
ination of amino acids Kjeldahl method depending on the total content of nitrogen, assay by the visible radiation using Spectrophotometer after ninhydrin derivatization and high performance liquid chromatography with pre-column O-phtadelaldehyde derivatization using fluorescence detector. There were no significant differences in the results obtained by the three used methods. The results revealed that dietary supplements containing creatine and protein were conform to the European pharmacopoeia specifications, regarding products containing arginine used as medication and locally manufactured, they were conform to pharmacopoeia specifications while the illegal dietary supplement containing arginine were not conform.
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