Showing papers in "Mesopotamia Journal of Agriculture in 2013"

Phytoremediation of salt- affected soils at al- jazeera northern irrigration project/ ninavah/ iraq

Abstract: Soil salinity is one of the most serious limiting factors that affect plant growth and productivity of various crops in arid regions. Methods commonly used to combat salinity are either classical or new using halophytes.This study was conducted at plastichouse in order to evaluate the efficiency of Atriplexhalimus in salt removal from saline, saline-sodic soils of Al-jazeera project in Ninavah province. Plantation with A.halimus decreased electrical conductivity for salinesodic soil from 39.2 to 26.5dS.m -1 and from 6.2 to 4.9 dS.m -1 for saline soil. Sodium adsorption ratio declined to half and 28.6% for salinesodic and saline soils respectively. The current study revealed an increased efficiency of Atriplexhalimus with increasing salinity which suggest it a good candidate for soil desalination in arid and semiarid regions.

COBINING ABILITY AND HETEROSIS IN EGGPLANT (Solanum melongena L.)

Abstract: A full diallel was established in 2006 at Duhok Univ., Iraq, to study heterosis and combining ability for growth, and yield components in four varieties, Early long purple(1),Long purple(2),Black Beauty(3), and Alton kubry (4) of eggplant. The results revealed that F1's exhibited significant heterosis for all traits. The hybrid (3×1) gave the highest heterosis value for plant height and fruit weight. The hybrid (4×2) produced the greatest value for number of branches and early yield plant . Whereas, the hybrid (4×1) was earliest in date of flowering and possessed the highest heterosis in fruit diameter. The parent 2 (long purple) revealed as the best general combiner for most desirable traits . Analysis of combining ability indicated that GCA mean square was significant for all traits, whereas, SCA mean square was non-significant in number of branches ,number of leaves till 1 st inflorescence, total and early yield. Specific combining ability results for each hybrid exhibited that 2x4 was characterized with a good specific combining ability for most traits .On the other hand ,there was a significant reciprocal effect's for date of flowering, no. of flowers inflorescence -1 , average fruit weight, no. of fruits plant -1 ,fruit length and diameter which was obviously recognized between the hybrid 3x1 and its reciprocal.

Field performance and physiological growth of four hybrids derived from the sixth generation of durum wheat

Abstract: This study was carried out in the field of College of Agriculture - University of Salahaddin in Erbil during the season 2009 - 2010 including the evaluation of four hybrids derived from diallel crosses among seven varieties of durum wheat, previously assessed on the basis of combining ability and heterosis of them. The breeding program continued until these hybrids reached the sixth generation, and were compared with three other varieties, two of them cultivated on a large scale. Fifteen traits were studied, including different growth, physiological characters and grain yield and its components. The hybrid (Acsad- 65 × Kosem- N) has been selected to continue its breeding in order to adopt a new variety based on its performance superior in most of the studied traits, especially in the productivity score and grain yield and in traits that are showed positive correlation with the grain yield like leaf area index, net assimilation rate, spike length, 1000-grain weight and spikes/m 2 , which had the greatest effect in the prediction of grain yield according to

SEED QUALITY (Fe AND Zn CONTENTS) OF WHEAT GENOTYPES

Abstract: In the lab study, seeds of 18 wheat genotypes were tested for their concentrations and contents of Fe and Zn to determine the seed quality . The iron concentrations in the seed of the 18 wheat genotypes ranged between 20.5 to 65.4 mg kg -1 dry weight basis. Only the seed of Saef and Bohuth/6 genotypes had Fe concentration more than 57 mg Kg -1 and fulfill quality standard set by WHO, 2006, were as six of seed genotypes had more than 41mg Zn Kg -1 namely Saef, Karoniah, Zebba/5, Abo-Ghraib, Sham/3 and Pash/29. The results also showed that for the two genotypes with the highest Fe concentration, only Saef was the genotype that had higher Zn concentration more than 41 mg Zn Kg -1 the quality standard. In contrast to Zn , the variation for seed Fe content was not greater than variation found for the

A STUDY OF ARTIFICIAL DIET ON THE PARASITE ACTIVITY Aphidius transcaspicus (Telenga) (Hymenoptera: Braconidae: Aphidiinae)

Abstract: ةصلاخلا ياطتملا تايغلاب ايبب اديمو ةيٌلاطتلا ا اياكلا ًيف ةٌعانصلا ةٌئاذغلا تاطلخلا رٌثأت ةسارد Aphidius transcaspicus(Telenga) ياطتملل ةيٌلاطت ا ااك ىلعأ تببح دق ) ام و مدلا فملومٌه( ةطلخلا نا نٌبت تا ايٌموملا ددع طسوتم غلب ذإ 48.67 ايٌموم ل نيم ريرخخا ويخلا .( Sulz ) Myzus Persicae ةبيسنبو يياطت 27.22 % ييٌف تييقوات ييٌح و ا ييٌجلا ا ايياك ًييف ةييٌونفم تاييقورف دوييجو ئاييتنلا تحييروأ اييمك. ياطت ةبيسنب ) ايمو نٌيتلاجو يسفلا( ةيٌناثلا ةطلخلل ةٌعانصلا ةٌذغتلا نم ةجتانلا تلااطتملا 23 طيسوتمبو ٪ تا اٌموم ددع غلب ( 47.3 . اٌموم )

Response of germination and seedlings growth of "lotus persimmon rootstock to kno3 and hypertonic treatments

Abstract: The study was performed in Horticulture lath house / college of Agriculture & Forestry, University of Mosul to investigate the effect of seed soaking in three concentration of both KNO3 (0, 1000 , 2000 and 3000 mg.l -1 ) and hypertonic (0, 1 and 2 cm 3 .l -1 ) for 48 hrs and their interaction treatments on percentage germination seed and seedlings growth of \"Lotus\" persimmon rootstock. Then the seeds stratified in peat moss and sand in nylon bags at 5°C for 100 days. After the period of stratification, the seeds were planted in black polyethylene bags in the lath house on 20 th of March, 2010. Parameters of seeds germination and seedling growth were recoded. The results were as follow: Interaction between 2000 mg.l -1 KNO3 and 2 cm 3 .l -1 hypertonic gave the highest germination of the seeds (85.71%), and Interaction between 3000 mg.l -1 KNO3 and 1 cm 3 .l -1 hypertonic resulted in a significant increase in seedlings height and diameter and leaves number per seedling as compared with control treatment, while the interaction treatment between 3000 mg.l -1 KNO3 and 2 cm 3 .l -1 of hypertonic was superior in leave surface area.

Estimation of gene action, combining ability, heterosis and heritability in maize by using line × tester method under two of nitrogen levels.

Abstract: The experiment was carried out at the field of College of Agriculture at the University of Duhok during the spring season of 2010. Eleven inbred lines of maize, had been selected, eight of them were used as a line (males), (ZP 204, ZP 301, ZP 595, ZP 670, ZP 430, ZP 505, un 44652, ZP 735) and the reminder used as testers (females), (ZP 197, ZP 607 and ZP 707) to estimate gene action, specific and general combining ability, heterosis and heritability for yield and its components under two nitrogen fertilizer levels (135 and 275 Kg N/ha). The results showed significant positive heterosis for most studied characters of hybrids under two nitrogen levels. The better hybrids for grain yield were (ZP 607 × ZP 505) and (ZP 707 × ZP 204). The line ZP 505 showed the heights positive GCA effect of grain yield. Heritability in broad sense was high for all studied characters while heritability in narrow sense was high for ear height under both nitrogen levels and number of rows / ear under value nitrogen level only. The additive variance was more than dominance variance for all characters except 100 grain weight (g) and ear length (cm) under (135 Kg N). The average degree of dominance was greater than one for all characters. The results of this study can enhance the use of promising inbred lines in a programme focused on developing hybrid that efficiently can take up and use nitrogen. Keyword: Gene action, Heritability, Nitrogen levels Received: 27/06/2011 accepted: 12 /12/201