scholarly journals STORAGE CHARACTERISTICS OF SPIKES AND GRAINS OF BREAD WHEAT CULTIVARS

2020 ◽  
Vol 51 (1) ◽  
Author(s):  
Cheyed & et al.
Keyword(s):  
Laboratory Experiment ◽  
Bread Wheat ◽  
Morphological Characteristics ◽  
Field Crop ◽  
Wheat Cultivars ◽  
Seed Technology ◽  
Agricultural Engineering ◽  
Engineering Sciences ◽  
Storage Characteristics

This study was conducted to identify the storage characteristics of spikes of five bread wheat cultivars (Abu-Ghraib3, IPA-99, Boohooth-22, Al-Rashid and Al-Wafeer). These spikes were gathered and compacted in cubic box (25×25×25 cm) with different weight masses (0, 3, 6 and 9 kg container -1). A laboratory experiment was carried out in the Seed Technology Laboratory, Department of Field Crop Sciences, College of Agricultural Engineering Sciences-University of Baghdad. Results revealed significant differences among cultivars, masses levels and their interaction for all studied characters. Abu-Ghraib3 gave the highest mean of spikes number and less mean for the broken spikes and shuttered grains. While Al-Wafeer gave the highest mean of total grains weight resulted from spikes shuttering and grains space. However, Al-Rashid gave the highest mean of broken spikes, shuttered grains and replacement percentage in the container. Increasing the weight masses imposed on the gathered spikes in the container increased all studied characters. It can be concluded that the varieties were different in their spikes morphological characteristics as smaller spikes sizes the less losses resulted from spikes pressure.

scholarly journals FIELD EMERGENCE AND SEEDLING VIGOUR OF BREAD WHEAT AS INFLUENCED BY METHOD AND LONGEVITY OF STORAGE

2019 ◽  
Vol 50 (6) ◽  
Author(s):  
S. H. Cheyed
Keyword(s):  
Laboratory Experiment ◽  
Bread Wheat ◽  
Field Crop ◽  
Seedling Vigour ◽  
Seed Technology ◽  
Agricultural Engineering ◽  
Engineering Sciences ◽  
Field Emergence ◽  
Wheat Seeds

A laboratory experiment was carried out in the Seed Technology Laboratory, Department of Field Crop Sciences, College of Agricultural Engineering Sciences, University of Baghdad during the period 2010-2019. That was to evaluate bread wheat seeds stored in spikes in their field emergence and seedling vigour. Seeds, of stored spikes were compared with naked seeds, treated with cruise and untreated. All three treatments of seeds were grown in the laboratory and traits of days to last day of emergence, days to emerge, % of emergence, and other trails were recorded. Seeds of stored with thein spikes gave better values in days to last day of emergence, days of emergence, percent of emergence, length of plumule, seedling vigour and speed of emergence. The percent of emergence was decreased with increased years of storage, but those stored in their spikes were less affected. It was concluded that storing bread wheat with spikes had better results in field emergence as compared to seeds threshed and stored.

scholarly journals EFFECT OF SOME AMINO ACIDS ON TILLERING AND YIELD OF THREE BREAD WHEAT CULTIVARS

2019 ◽  
Vol 50 (Special) ◽  
Author(s):  
Baqir & Al-Naqeeb
Keyword(s):  
Amino Acids ◽  
Grain Yield ◽  
Bread Wheat ◽  
Foliar Application ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Growth Stages ◽  
Wheat Cultivars ◽  
Engineering Sciences

 The objective of this study was to investigate the effect of some amino acids on tillering and grain yield of bread wheat cultivars. A field experiment was carried out at the agricultural experiment station, College of Agriculture Engineering Sciences, University of Baghdad during the two winter seasons, 2016-2017 and 2017-2018. Randomized Complete Block Design within split plots arrangement was used in three replicates. The experiment included two factors, the first (main plots) was the wheat cultivars (IPA 99, Buhooth 22, and Abu-Graib3) and the second (sub-plots) was foliar application three amino acids (L-Tryptophan, L-Glycine, and L-Lysine) with concentrations 50 and 100 mg L-1 and the amino acid L-Cystine at 100 and 150 mg L-1 and control treatment. The treatments of foliar application were applied during two growth stages, the first was when the main stem had three leaves (ZGS: 13) and the second was when the plant entered the flowering stage (ZGS: 60). Results showed the significant superiority of Buhooth 22 in most growth traits, which produced the highest number of tillers.m-2 (556.30 and 568.15 tillers m-2), number of spikes (476.74 and 494.19 spikes m-2), weight of 1000 grains (31.09 and 32.43 g), and grain yield (5.39 and 5.15 Mg ha-1) for the two seasons respectively. The treatment of foliar application L-Tryptophan at 50 mg L-1 was significantly superior in most traits of yield components which produced the highest values of the number of tillers (616.89 and 627.78 tillers m-2), number of spikes (477.00 and 944.67 spikes m-2), weight of 1000 grains (32.01 and 33.55g), and grain yield (5.77 and 5.33Mg ha-1) in the two seasons, respectively. The response of wheat cultivar growth and yield to amino acids differed significantly.      

scholarly journals Effect of Soaking Maize Seeds with Selenium and Chitosan on Improving Germination, Vigour and Viability of Seed and Seedling

2021 ◽  
Vol 904 (1) ◽  
pp. 012075
Author(s):  
A A Al-Omairi ◽  
I H Al-Hilfy
Keyword(s):  
Dry Weight ◽  
Distilled Water ◽  
Seedling Vigour ◽  
Seed Technology ◽  
Agricultural Engineering ◽  
Maize Seeds ◽  
Low Concentrations ◽  
Engineering Sciences ◽  
Vigour Index ◽  
Technology College

Abstract An experiment was carried out in the Laboratory of Seed Technology-College of Agricultural Engineering Sciences - University of Baghdad – Iraq, to studying the stimulation of maize seeds by soaking with selenium and chitosan to improve the vigour and viability of seeds. By using factorial experiment according to the Complete Random Design (CRD) with three replications. The seeds of two synthetic cultivars of maize (Baghdad 3 and Buhoth 5018) were soaked in selenium solutions at two concentrations (2 and 5 mg L-1), and chitosan (100 and 500 mg L-1) for 10 hours, as well as the two control treatments, which were dried seeds (without soaking) and the seeds soaked in distilled water. Results are shown that low concentration of 2 mg L-1 give highest mean were recorded in the percentage of germination in the first and final counts, the mean time germination, length of root and the plumule, the seedling vigour index, germination speed, and dry weight of the seedling. Seeds soaking with the solutions containing chitosan at both concentrations did not give significant results compared to the selenium treatments, both cultivars differed significantly in some germination characteristics and the vigour and viability of the seed: (length of root and the plumule, dry weight of the seedling). The results also showed a significant effect of the interaction between seed soaking treatments and cultivar on all studied traits. We conclude from this study that treatments of stimulating seeds by soaking them with distilled water and solutions of selenium and chitosan positively affected germination and its characteristics, so we recommend using low concentrations of selenium and chitosan to improve seed germination, vigour, and viability of the seedling.

Nitrogen Metabolism and Yellowberry of Two Bread Wheat Cultivars 1

Crop Science ◽  
1983 ◽  
Vol 23 (1) ◽  
pp. 20-22 ◽  
Author(s):  
James F. Henson ◽  
J. Giles Waines
Keyword(s):  
Nitrogen Metabolism ◽  
Bread Wheat ◽  
Wheat Cultivars

Responses of Some Turkish Wheat Cultivars to Vernalization and Photoperiod

1988 ◽  
Vol 24 (2) ◽  
pp. 237-245
Author(s):  
Serpil Terzioğlu
Keyword(s):  
Bread Wheat ◽  
Normal Development ◽  
Photoperiodic Response ◽  
Reliable Information ◽  
Floral Initiation ◽  
Wheat Cultivars ◽  
Primary Shoot ◽  
Time Of Year ◽  
Short Days

SUMMARYThe vernalization and photoperiodic response of six locally adapted bread wheat cultivars grown under natural daylength conditions during the summer or winter months was examined in glasshouse experiments. The wheat was vernalized by chilling imbibed grains at 2 ± 1°C for 0, 15 or 45 days. Vernalization for 45 days followed by long summer days led to floral initiation in all cultivars within 28 days but vernalization for 0 or 15 days only led to floral initiation in one cultivar. Vernalization followed by long days reduced the time from transplanting to anthesis, resulting in early ear emergence. Vernalization followed by short days accelerated the development of all the cultivars, but normal development could also occur without vernalization at this time of year. Apical differentiation of the primary shoot and its length and development gave the most reliable information on the period of vernalization required.

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