Heritability, heterosis and genetic advance in three hybrids of maize (Zea mays) that resistant to maize stalk borer Sesamia cretica

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.

Etiological, epidemiological and therapeutic studying of the leg ulcer

the leg ulcer is the common disease, it distributes widely in the world. it affect both genders, and any age. it strongly related to the vascular diseases, its most complications are infection and contact dermatitis. the management of the ulcer is depended to the etiology, and regeneration ulcer using different drugs, the surgical procedure is rarely taking place in managements ulcers. the duration of the study was february 2010 and june 2011. the percentage of leg ulcer among patients of dermatology clinic was 0.32%, and 5% of vascular surgery patients. the main age was 48 years. the most common causes of leg ulcer was chronic venous insufficiency (34%), and arterial (22%). the majority of the complications are contact dermatitis and secondary infection. therapeutic study had included drugs helping regeneration (32 ulcer), the best result was using Mebo and Silver Leaf, the percentage of healing was approximately 99% along 8 weeks.

Estimation of Correlation and Path coefficient for hybrids of maize(Zea mays) under conditions industrial infection by large corn stem borer Sesamia cretica

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.

The adult behavior of longhorn beetle Cerambyxdux F. (Cerambycidae, Coleoptera)

This research was aimed to study the behavior of adults of the Longhorn beetle, Cerambyx dux F. (Cerambycidae, Coleoptera) on apple tree. Results showed that the adults have a diurnal habit.The adults emerged from pupa was sexually matured, and fed only for survival.

Estimation of General and Specific Combining Ability for strains and hybrids of maize (Zea mays) under industrial infection by large corn stem borer Sesamia cretica

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).

Estimation of Heterosis of some productive traits for hybrids of maize(Zea mays) under industrial infection by large corn stem borer Sesamiacretica

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.

دراسة السلوكية و البيئة الكيميائية للبحث عن الشريك الجنسي لدى حفار ساق الذرة الأوروبي (Ostrinia nubilalis Hübner ( Lepidoptera, Pyralidae

حددت الاستجابة السلوكية للفرمونات الجنسية في نفق الطيران لحشرة حفار ساق الذرة الأوروبـي nubilalis Ostrinia و قد أخذت الذكور من مجتمعات متميزة، و من أنماط بيئية مختلفة (ذكور جمعت من الطبيعة و أخرى ناتجة عن تربية كثيفة على وسط صناعي). أُجريت هذه الدراسـة فـي مخـابر المعهـد الوطني للبحوث الزراعية-فرساي فرنسا عام 2004 . و لتحديد هل لاختلاف نسب مكونات الفرمون الجنسي المختلفة تأثير في سلوكية ذكور حشرة حفـار ساق الذرة الأوروبي اِستُخدمتْ كبسولات فرمونية صنعية تشمل سلالة E و سـلالة Z . أمـا الفرمونـات الجنسية الطبيعية فكان مصدرها الإناث التابعة للسلالة Z.