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Register a new userEffect of Removing Early Developed Buds on Growth, Yield and Quality of Two Cotton Cultivars (Gossypium barbadense L.)
أثر إزالة البراعم الزهرية المبكرة التكوين في النمو و الإنتاجية و نوعية صنفين من القطن (Gossypium barbadense L.)
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Damascus University ورقة بحثية
Publication date
2011
fields
Field Crops
and research's language is
العربية
Authors
محمد المرتضى حسن أمين( باحث )
Created by
Shamra Editor
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أجريت تجربة حقلية لموسميين زراعيين 2006/2007 و 2007/2008 بالحقـل التجريبـي لمحطـة بحوث الجزيرة في هئية البحوث الزراعية بالسودان. لدراسة أثر إزالة البراعم الزهرية المبكرة التكـوين في النبات في النمو و الإنتاج الكلي للقطن و القطن الشعر و بعض خصائص التيلة. اسـتخدمت المعـاملات الآتية: إزالة 50 % و 100 % من البراعم الزهرية بعد أسبوع، أسبوعين، ثلاثة أسابيع مـن تكـوين أول برعم زهري و شاهد. وضعت المعاملات حسب تصميم القطاعات الكاملة العشوائية متعددة العوامـل مـع ثلاثة مكررات. معايير النمو التي درست هي طول النبات، و عدد العقد في الساق الرئيسية، و عدد الأوراق و عدد الأفرع في النبات، و كذلك درِس الإنتاج الكلي للقطن و القطن الـشعر و بعـض خـصائص التيلـة. أوضحت النتائج أن إزالة البراعم الزهرية لها تأثير معنوي في طول النبات و عـدد العقـد فـي الـساق الرئيسية. كما كان لها الأثر المعنوي في الإنتاج الكلي للقطن و القطن الـشعر و تأثيرهـا الإيجـابي فـي خصائص التيلة فقط في الانتظام و المتانة. أظهرت النتائج أن زمن إزالة البراعم الزهرية ذو دلالة معنوية فقط على بعض معايير النمو و الإنتاج الكلي للقطن و القطن الشعر. أشارت النتائج إلى أن الفعل المتبـادل للأصناف و زمن الإزالة له تأثير إيجابي في بعض معايير النمو. أما الفعل المتبادل للزمن و النسبة المئوية للإزالة فكان للتأثير المعنوي في الإنتاج الكلي للقطن و المتانة. أوضحت النتائج وجود فروق معنوية بـين الأصناف في طول النبات و عدد الأفرع و قد سجل الصنف بركات – 90 أعلى معدل للطول و عدد الأفرع.
A field experiment was conducted for two consecutive seasons 2006 – 2007 and 2007 – 2008 to investigate the effect of removing early developed buds on growth, yield and some lint proprieties. Treatments involved in the experiment included three levels of bud removal (0%, 50%, and 100%) at three times (one, two and three weeks after budding). The treatments were arranged in FRCBD, with three replications. Growth parameters (plant height, number of nodes/plant, number of leaves/plant, and number of branches/plant) cotton seed yield, lint yield and lint properties were investigated. The results revealed that bud removal significantly increased plant height, number of nodes, cotton seed yield and lint yield, uniformity (UR) and lint strength (HVI). Also the results showed that, time of bud removal significantly affected growth parameters, cotton seed yield and lint cotton. The results indicated that, varieties and time of bud removal interaction had a significant affect on growth parameters. While, percentage of bud removal and time of bud removal interaction had a significant effect only on cotton seed yield and strength of lint. The results showed that, there were significant difference between cultivars in plant height and number of branches per plant, with cultivar Barakat – 90 the best.
References used
Ali, N. A. and Khalifa, H. (1982). Implication of Sugars in Cotton Lint. Symposium of Cotton Production and Marketing. May 17th. 1982
Bauer, P. J. and Bradow J. M. (1996). Cotton genotype response to early – season cold temperatures. Crop Sci. 36: pp: 1602-1606
Bednarz, C. W. and Roberts, P.M. (2001). Spatial yield distribution following early-season floral bud removal. Crop Sci. 41: pp: 1800-1808
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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.
The research was carried out at Jeb Ramlah Research Station – AlGhab Research Center -
General Authority of Scientific Agricultural Research at 2017 growing season. The
objective was to investigate the effect of three organic and bio fertilizers (B
acillus, Humic
acid and Amino acids) and three fertilization methods (Soaking seeds, Vegetative spraying
and Plant irrigation) in some morphological and production traits of cotton cultivar 124
(Gossypium herutum L.) The experiment was conducted according to RCBD with three
replications. The first factor (fertilizer type) occupied the main plots, while the second
factor (fertilization method) occupied the split plots. Statistical analysis was carried out
using the Genestat.12 software and the least significant difference L.S.D. at 5% level was
calculated. Studied traits included (at the beginning of Blooming stage): Plant Height,
Plant wet weight, Plant dry weight, Leaf area and plant production of cotton. The results
showed that the average of treatment of amino acids was superiority significant on the
others in terms of plant height (70.70cm), Plant wet and dry weight (201.50, and 83.41g),
respectively, Leaf area (4240.15cm2/plant) and plant production of cotton (75.13g). For
fertilization method, Vegetative spraying average was superiority significant on the others
in terms of all studied traits.
The research was carried out in the fields of Akar plain in Tartous
province during two seasons (2013, 2014) to study the effect the three
multiplication methods (Slips as control, Seedling, Cut-seed tuber) on
growth and yield of two locally sprea
d sweet potato varieties. The
experimental design was a randomized complete block with three
replications. Data were analyzed using the statistical program GenStat 12.
The research was conducted in 2018 at Jeb Ramleh Research Station - Al-Ghab Research Center - General Authority of Scientific Agricultural Research The objective was to investigate the effect of three types of organic and biological fertilizers ( Ba
cillus , Humic acid and amino acids) , and four fertilization methods ( without , soaking , seeds, Plant irrigation, and leaf spraying ) and their interactions in some physiological traits of cotton line 124.
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.
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