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Register a new userEvaluation some of production and morphological traits of strains of maize under conditions of natural infection by large corn stem borer Sesamia cretica
تقييم بعض الصفات الإنتاجية و المورفولوجية لسلالات من الذرة الصفراء تحت ظروف العدوى الطبيعية بحفار ساق الذرة الكبير Sesamia cretica
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Tishreen University ورقة بحثية
Publication date
2013
fields
Field Crops
and research's language is
العربية
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Shamra Editor
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أجري هذا البحث في حقول محطة بحوث سيانو التابعة للهيئة العامة للبحوث العلمية الزراعية في اللاذقية, حيث تم تقييم حساسية ست سلالات من الذرة الصفراء وفق تصميم القطاعات العشوائية الكاملة للموسم 2012 و هي IL.257-09 P1, IL.298-09(P2 ), IL.286-09 (P3), IL.255-09 (P4), (P5) IL.262-09, IL.228-09 (P6) للإصابة بحفار ساق الذرة الكبير Sesamia cretica Led. تحت الظروف الطبيعية و مقارنتها مع الشاهد (غوطة 82) كونه الصنف الأكثر زراعة في سورية.
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.
References used
ADDA. C; ATACHI. P; HELL. K; TAMÒ. M. Potential use of the bushmint, Hyptis suaveolens, for the control of infestation by the pink stalk borer, Sesamia calamistis on maize in southern Benin, West Africa. Journal of Insect Science.11(33). 2010
AL-AHMAD, S. A. Studies on some hybrids and strains of yellow maize. Ms. D. Fac. Of. Agric, Ain Shams, Univ, Egypt, 2001
AL-AHMAD, S. A. Genetic parameters for yield and its components in some new yellow maize crosses. Ph. D. Fac. Of. Agric, Ain Shams, Univ, Egypt, 2004
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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 cro
ss, 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).
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 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 study was conducted at the farm of Faculty of Agricultural-Kharabo as
an intensive planting during 2011 and 2012 growth seasons. Using RCB design
with two replications to study some genetic indices and simple linear
correlation between yield
and quality traits of 79 families selected from Sh
population, improved by Full-sib selection. Results revealed that traits, silking
days, protein percentage and oil percentage were affected by additive gene
action while plant height and starch percentage were affected by non-additive
gene action. Results also revealed that grain yield showed positive significant
correlation with starch percentage (r=0.94*) and negative significant
correlation with plant height (r=-0.95*) and protein percentage (r=-0.52*)
indicating that less selection cycles are needed to improve families with high
yield and starch percentage contents with early silking days (intensive planting)
and medium plant height (machining cropper).
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