Soad Haffez | Mansoura University (original) (raw)

Papers by Soad Haffez

Journal of Plant Production, Aug 1, 2022

, six cotton varieties belong to (Gossypium barbadense L.) growing seasons 2020 and 2021. The F1 ... more , six cotton varieties belong to (Gossypium barbadense L.) growing seasons 2020 and 2021. The F1 hybrids and six cotton varieties Giza 96, Giza94, Giza 92(Egyptian cotton) and Australy13, Karshenky and Pima S7 (another varieties) were growing in 2021 season in a randomized complete blocks design (RCBD) with three replications. Obtained results showed that the mean squares of parents and crosses were highly significant for all traits under study. The mean squares due to general combining ability (GCA) and specific combining ability(SCA) were highly significant for all traits under study except lint percentage at specific combining ability. The crosses Giza 96 × Karshenky, Giza94 × Australy13 and Australy13 × Karshenky were significant desirable heterosis relative to mid and better-parent for most yield traits under study, while, the crosses Giza 96 x Pima S7 and Giza 92 × Karshenky were significant desirable heterosis relative to mid and better-parent for most fiber traits under study. Highest broad-sense heritability estimates was observed in case of seed cotton yield plant-1 with value of 96.81% and the lowest value was for lint percentage with value of 54.26%, while, narrow-sense heritability (h 2 n) was ranged from 5.62% for micronare reading to 58.17% for lint cotton yield/plant, respectively.In general, Australy 13 and Karshenky can be used in breeding programs for improving high yielding varieties, while Giza 92 and Giza 96 can be considered as excellent parents for the production of new varieties characterized with best fiber properties.

Journal of Plant Production, Oct 1, 2010

A half diallel set of crosses among six inbred lines of maize were evaluated under two plant dens... more A half diallel set of crosses among six inbred lines of maize were evaluated under two plant densities (23333 and 35000 plants/fad) for grain yield and its components and quality traits at Sherenkash Village, Talkha district, El-Dakahlia Governorate. Obtained results are as follows: 1-Highly significant variances due to general and specific combining ability for all studied yield and yield components and quality traits, except ears number per plant and protein percentage under both plant densities and oil percentage under normal plant density. 2-The GCA/SCA ratio was less one for all studied yield and yield components and quality traits under both plant densities, suggesting that non additive genetic action was more important than additive, except rows number per ear, kernels number per row and 100-kernel weight under stress plant density. 3-GCA effects showed that the lines R24, R25 and R39 were good general combiners for grain yield per plant under normal plant density. 4-SCA effects showed that the best F1 cross combinations were P1xP2, P1xP4, P1xP6, P2xP3, P3xP5 and P5xP6 for grain yield per plant. These crosses had highly significant estimates of SCA effects under normal plant density. 5-The highest value of heterotic effects relative to mid and better parents for grain yield per plant were obtained by P4xP5 followed by P5xP6. These crosses had the highest positive significant heterotic under both plant density.

Asian Journal of Crop Science, Dec 15, 2013

Journal of Plant Production, Jun 1, 2016

This study was carried out at the Experimental Farm in Agronomy Department, Faculty of Agricultur... more This study was carried out at the Experimental Farm in Agronomy Department, Faculty of Agriculture, Mansoura University during the two seasons 2012/2013 and 2013/2014 using six diverse barley genotypes (Hordeum vulgare L.). All possible parental combinations without reciprocals were made among the six genotypes, giving 15 crosses. The six parental genotypes and 15 F 1 's were evaluated in two experiments. The first experiment, was irrigated with the recommended treatment i.e three irrigations after planting irrigation (normal condition), and the second one was irrigated with planting irrigation only (drought condition). Plant height, spike length, number of grains/spike, number of spikes/plant, 100-grain weight and grain yield /plant were studied. Results indicated that water stress treatments decreased the means of all studied traits for parents and their hybrids. Statistical analysis revealed highly significant effects of genotypes, GCA and SCA for all studied traits, providing evidence for presence of large amount of genetic variability. The estimates of GCA effects showed that, P 1 was a good combiner for number of grains/spike and 100-grain weight under both conditions, spikes/plant under Normal and plant height and grain yield/plant under stress; P 2 for grain yield/plant under both conditions, spike length, spikes/plant, number of grains/spike under normal and plant height under stress ; P 3 for plant height, 100 grain weight under both conditions and number of grains/spike under normal; P 4 for grain yield/plant under both conditions, spikes/plant under normal and plant height under stress; P 5 for plant height and number of grains/spike under stress and P 6 for spike length and 100 grain weight under stress. For SCA estimates, it could be summarized that the best hybrids were cross No. 1, 9 and 10 for most studied traits under both conditions. Drought susceptibility index (DSI) used to estimate relative stress injury because it accounted for variation in yield potential and stress intensity. This index could be estimated based on many traits. which included Giza 123, Giza 129, crosses No. 3 and 10 were tolerant for most traits, indicating the importance of these parents in this regard.

Journal of Plant Production

Assiut Journal of Agricultural Sciences, 2021

To assessment molecular and phenotypic diversity for ten barley lines belong to Hordeum vulgare L... more To assessment molecular and phenotypic diversity for ten barley lines belong to Hordeum vulgare L., ten SCoT primers were used and 12 morphological traits were estimated in two seasons (2018/2019 and 2019/2020). The SCoT primers succeeded in generating reproducible and reliable amplicons. SCoT technique showed that 66.67 % to 100% of polymorphism. The resolving power (Rp) value varied from 4 to 11.40. In addition, the 10 lines were characterized by 41 unique markers (22 positive and 19 negative). B 6 had the highest numbers of positive markers (six). According to phenotypic evaluation, the mean squares for genotypes were highly significant for all studied traits from combined data over two seasons. The heritability values in broad sense (h 2 b %) ranged from 40.63 (100-grain weight) to 99.22 (Days to heading). The P 7 gave desired value in four traits (NT/P, NS/P, NG/S and GY/P g) and the other lines showed desired value in one or two trait, thus all traits which detected in the ten lines might be associated with all unique markers distinguished in this study. The inbred line P 6 showed the highest number of unique markers (6 positive), one or some of which may be linked with grain filling period (GFP day) trait that showed in line desirable value. Consequently, these markers may be used as selectable markers for genetic improvement of these traits in barley.

Journal of Soil Sciences and Agricultural Engineering, 2019

Journal of Plant Production, 2020

The aim of study was to determine the response of wheat cv. Gemmiza 11 to different nitrogen fert... more The aim of study was to determine the response of wheat cv. Gemmiza 11 to different nitrogen fertilizer levels (40, 50, 60 and 70 kgN/fed) and foliar spraying with alga as extract biofertilizer (1, 2, 3 g/L and without spraying). Data indicate that significant differences among nitrogen fertilization levels and foliar concentrations with alga extract for all studied characters in the two seasons. It can be summarized that fertilizing wheat with 70 kg N/fed as well as spraying with alga extract as biofertilizer at 3 g/L to give the highest averages of number of days to heading, plant height , spike length , number of spikes/m 2 , number of grains/spike, 1000grain weight, biological yield and harvest index and also scored maximal values for grain yield (24.15 and 22.78 ardab/fed) and (24.22 and 23.15 ardab/fed), respectively for both seasons. More, the interaction effect show significant differences on plant height and biological yield in both seasons and spike length in the 2 nd season only.From the obtained results in this study ,it can be concluded that planting wheat ,Cv Gemmiza 11 and mineral fertilizing with 70 KgN\fed and twice foliar spraying with alga extract at the rate of 3g\L to maximize wheat productivity under the environmental conditions of EL Mansoura, Dakahlia Governorate, Egypt.

Journal of Plant Production, 2016

Asian Journal of Crop Science, 2014