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Register a new userEstimation of General and Specific Combining Ability for strains and hybrids of maize (Zea mays) under industrial infection by large corn stem borer Sesamia cretica
تقدير القدرة العامة و الخاصة على الائتلاف لسلالات و هجن من الذرة الصفراء تحت ظروف العدوى الصناعية بحفار ساق الذرة الكبير Sesamia cretica
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Tishreen University ورقة بحثية
Publication date
2015
fields
Field Crops
and research's language is
العربية
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Shamra Editor
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نُفذ البحث في حقول محطة بحوث سيانو التابعة للهيئة العامَّة للبحوث العلميَّة الزراعيَّة في اللاذقيَّة, حيث تمَّ تقويم حساسيَّة ست سلالات من الذُّرة الصَّفراء Zea mays. L و الهُجُن الخمسة عشر الناتجة باستخدام التهجين نصف التبادلي, للإصابة بحَفار ساق الذُّرة الكبير Sesamia cretica Led. تحت ظروف العَدوى الصناعيَّة وفق تصميم القطاعات العشوائيَّة الكاملة. أبدت السُّلالة IL.257-09(P1) قُدرة عامة عاليَّة لصفات عَدد الحُبُوب بالصَّف (3.089) و أعداد الثُقوب (-1.261). كما أبدت السُّلالة IL.298-09 (P2) قُدرة عامة عاليَّة لصفات طول العرنُوس (0.717), شدة الضَّرر(0.432-), النسبة المئوية لفقد الغلَّة-6.022) ). و أبدت السُّلالة IL.286-09 (P3) قُدرة عامة عاليَّة لصفات قَطر العرنُوس(0.292), عَدد الصُّفوف بالعرنُوس ((2.806. في حين أبدت السُّلالتين IL.255-09 (P4)(0.036) و IL.228-09 (P5) (0.969) قُدرة عامة عاليَّة لصفة الغلَّة الحبيَّة. و أبدت السُّلالة IL.262-09 (P6) قُدرة عامة عاليَّة لصفات وزن 100 حبّة(1.942) , الغلَّة الحبيَّة المصابة ((0.784, طول النَفق(-5.629) , النسبة المئوية لمَوت القمَّة الناميَّة-1.132) ) .
The study was done at the field research station Sianow of General Commission for Scientific Agricultural Research at Lattakia, to evaluate the susceptibility of 6 strains of maize Zea mays. L, and fifteen maize crosses obtained by half Diallel cross, against under conditions Industrial infection by large corn stem borer , Sesamia cretica Led. The experience was designed at randomized complete blocks (R.C.B.D). Strain IL.257-09)P1( expressed general high capacity to the attributes of Number of kernels per row(3.089), number of holes (-1.261). Strain IL.298-09 (P2) also expressed general high capacity to the attributes of Ear length (0.717), Intensity of damage (-0.432),% of yield loss (-6.022). strain IL.286-09 (P3) general high capacity to the attributes of diameter Ear (0.292), number of rows per ear (2.806). Strains IL.255-09 )P4) )0.036( and IL.228-09)P5) (0.969) also expressed general high capacity to the attributes of grain yield. Strain IL.262- 09(P6) expressed general high capacity to the attributes of 100- Kernel weight (1.942), infestation grain yield) 0.784), tunnel length (-5.629), Percentage of dead hearts (-1.132).
References used
ABD EL MONEAM. M. A; ATTIA.A .N; EL-EMERY.M.I and FAYED.E .A. Combinbining ability and Heterosis for some agronomic traits in crosses of maize. Pakistan. J. of. J. Sci.12(5). . 2009. P: 433-438
ALIU. SALI; FETAHU. SHUKRI; LUDVIK .ROZMAN; ADEM. SAILLARI. General and specific combining ability studies for leaf area in some maize inbreds in agroecological conditions of Kosovo, Acta agriculturae Slovenica.91(`1). 2008. P: 67 – 73
ALLAN. M; ALMANOUFI. A ; RWALLE. M. Evaluation of some maize varieties for attack by stem borer. Administration of Plant Protection Research, General Commission for Scientific Agricultural Research (GCSAR), Douma, [email protected]، [email protected]. 2005
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It was evaluated the susceptibility of 6 lines of maize, and fifteen
maize crosses, against by large corn stem borer, Sesamia cretica Led
under conditions Industrial infection. A study of the correlation
coefficient showed linear relationship of yields by 100- Kernel weight.
This study was conducted at the field of the research station Sianow of General Commission
for Scientific Agricultural Research at Lattakia, to evaluate the susceptibility of 6 strains of maize (
IL.257-09(P1), IL.298-09(P2 ) , IL.286-09 (P3 ), IL.
255-09( P4), IL.262-09 (P5), IL.228-09 (P6 )),
against the natural infestation by large corn stem borer , Sesamia cretica Led. They were
Compared with control (Ghouta 82).because it is the most growing variety in Syria.
This study was conducted at the of field research station Sianow belong to the General Commission for Scientific Agricultural Research at Lattakia, to evaluate the susceptibility of maize hybrids produced by using half Diallel the cross according to
the design ofrandomized completeblocks (R.C.B.D), under industrial infection by large corn stem borer Sesamia cretica. Hybrids were compared with the control (Ghouta- 82). The hybrid (P1 × P2) Showed positive and highly significantheterosis for Ear diameter and tolerance forlarge corn stem borer compared with the average of the parents and the best parents and the check (Ghouta- 82). The hybrid (P2 × P6) showed positive and highly significant heterosis for the number of kernels per row compared with the average of the parents and the best parents and the check (Ghouta- 82). Also the hybrid (P1 × P6) showed positive and highly significant heterosis for the number of kernels per row relative to the average of the parents and the best parents and the check (Ghouta- 82). hybrid (P4 × P6) showed positive and highly significant heterosis for the recipe grain yield compared with the average of the parents and the best parents and the check (Ghouta- 82). The hybrid(P5 × P6) also showed positive and highly significant heterosis for the Percentage of dead hearts of the developing summit compared with the average of the parents and the best parents, and compared with the check (Ghouta- 82), therefore it can be considered as a sensitive hybrid.
The experiment was grown in a Randomized Complete Blocks
Design with three replications, to estimate the heterosis, degree of
dominance and the inbreeding depression of three hybrids of maize.
This research aimed to evaluate the general and specific combining ability
components for six inbred lines and 15 hybrids produced by a half diallel cross method,
and was conducted during 2010-2011 seasons, in the Department of the Maize Researches
at G.C.S.A.R. Damascus .
The evaluation included the grain yield, ear height, ear length, and silking under two
different treatments of nitrogen fertilizer (1- addition of 50% of N-fertilizer with sowing
and the other 50% one month after sowing. 2- addition of 50% of N-fertilizer 18 days after
sowing and 50% one month after sowing).and 3 replicates.
Results indicated that:
Mean squares of inbred lines, and hybrids were highly significant for all studied
traits under two adding dates of nitrogen fertilizer, which indicated the presence of genetic
distance among parental lines.
The ratios (
2
GCA/
2
SCA) showed that additive gene effect was more important than
non-additive gene effect in controlling all studied traits except grain yield which showed
dominance of non-additive gene effect under tow dates.
Many of significant positive GCA effects were obtained for all traits, therefore, it
could be concluded, that the inbred lines CML.330, IL.26-09 and CML.334 seemed to be
the best general combiners for grain yield.
The hybrid (CML.368 × IL.215-09) had showed the best specific combining ability
effects for grain yield under the first date, while the hybrid (CML.330 × IL.26-09) showed
the best SCA effects under the second date.
The second adding date of nitrogen fertilizer (50% 18 days after sowing and 50%
one month after sowing) had surpassed of the first date (50% with sowing and 50% one
month after) with significant effects for grain yield trait.
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