Keywords : soybean


Effect of seeds priming treatments in viablity and vigour of soybean (glycine max l.) seeds under salinity stress

Ahmed H. Saudi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2017, Volume 15, Issue 1, Pages 111-130
DOI: 10.32649/aagrs.2017.129078

Two factorial experiments were conducted. One of them was laboratory experiment which was carried out at the Laboratory of Agriculture and Marshes College, University of Thi-Qar during laboratories of certification and test of seeds office in Thi-Qar governorate–Nassiriyah district during 2015. The other was conducted at the lath house with used the pots during spring season of 2016. The aim was to investigate the effect of soybean seeds priming before sowing on seed vigour and seedling growth characteristics under salinity stress. The design of Lab. experiment was (CRD) while for the other experiment was (RCBD) with four replications. Each experiment consisted of two factors. The first factor included seeds soaking treatments for 24 hours with KCL 10 g L-1, KCL 20 g L-1 and seeds soaking in distilled water, in addition to un soaked seeds treatment. The second factor was seeds planting in four levels of salinity 0, 2, 4 and 6 ds m-1.
The results of Laboratory experiment showed that superiority soybean seeds soaked with KCL 20 g L-1 in given highest averages of germination speed, standard germination percentage, radical length, plumule length, seedling dry weight and seedling vigour index. Soybean seeds were germinated in distilled water media (control) gave highest averages in all of studied traits. The results of Laboratory experiment also showed that soybean seeds soaked with KCL 20 g L-1 led to improved the seeds germination and seedling growth traits under salinity stress. The results of pots experiment showed that superiority soybean seeds soaked with KCL 20 g L-1, in given highest averages of field emergence percentage, plant length and plant dry weight .Soybean seeds were sowed in distilled water media gave highest average in all of studied traits. The results of pots experiment also showed that soybean seeds soaked with KCL 20 g L-1 led to improved emergence percentage, plant growth under salinity stress.

The soybean growth and yield response to potassium fertilizer and zinc leave nutrition

Bashir Hammad Alduleimi; Mohammed Ali Ahmed Daraj

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 1, Pages 226-241
DOI: 10.32649/ajas.2015.120021

A field experiment was carried out in the soil of alluvial tissues fusion in summer season of 2013 in Abu Flees area which is a part of Al Khalidiya district which lies on longitude 43Oand latitude 33O to investigate the effect of four levels of potassium (0,40,80&120 kgK.ha-1 ) and four concentrations of Zinc ( 0,30,60&90 mgZn.L-1), which were added as a leave nutrition, in the growth and yield of Soybean crop of GS lll class. In experiment used the order of the split-plot according to the randomized complete block design (RCBD) and four replications. Potassium levels occupied the main split-plots, while Zinc concentrations occupied the secondary split-plots. The results of the experiment are summarized as follows:
The 90mgZn.L-1 concentration revealed the highest average of plant height, the rate of Zinc and Potassium in the leaves, and the seeds crop product. This concentration did not differ significantly in most of its traits with the concentration 60 mgZn.L-1 which was prominent and high significantly in the leave area, dry plant weight, root length. The level 120 kgK.ha-1 indicated the highest average in the plant height, leave area, the weight of dray plant, the roots length, the rate of Zinc and Potassium in the leaves, and the product of plant seeds. This was not significantly different in most traits under study with the level 80 kgK.ha-1. The interaction between Potassium and Zinc significantly affects all the studied traits. The interaction between the level of 120 kgK.ha-1 and the 90mgZn.L-1 concentration revealed the highest rate in leaves area (249.8 dcm2), the length of the main root (34.65cm), seeds crop (96.13g.pl-1). Finally, it is concluded that there is a significant response in the studied traits when adding Potassium to the soil and at the nutrition of leaves with Zinc.

Response of Soybean yield and it's Components to Foliar Fertilization with some Micronutrients

H. M. Salih

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2012, Volume 10, Issue 1, Pages 308-316

Field experiment was undertaken in Al-Ishaki Experiment Station (60 Km .north of Baghdad) during the summer season of 2005 and 2006 to study the effect of foliar fertilization of soybean (Lee-74) by 0.015% of each Fe,Zn and Mn (as sulfates) applied in single and in all possible combinations of these three elements on soybean seed yield and its components.
The results showed that foliar fertilization of soybean grown in calcareous soil by Fe,Zn and Mn in single and in all possible combination among these elements had significantly increased number of buds/plant ,weight of 100seed(gm), seed yield(gm)/plant, the seed yield Kg/ha. and had insignificant effect on seed number/bud in both seasons. It was noticed clearly that, the treatments involved Zn applied in single or in combination with Fe or Mn or both of them had the most effect in increasing the seed yield and its components in both seasons. The percents increases in seed yield of soybean by foliar application of Zn, Zn+Fe, Zn+Mn and Zn+Fe+Mn were 14.8%, 16.0%, 15.6% and 22.2% in season of 2005 and 13.2%, 15.6%, 20.3% and 25.4% for season of 2006 respectively. The nutrient productivity of applied single Fe,Zn and Mn were 0.94 , 1.44 and 0.70 Kg. seed/g nutrient for 2005 season and 0.85, 1.51 and 0.77 Kg seed /g nutrient for 2006 season respectively.

Response of growth, yield and quality of soybean (Glycine max (L.) merr) to some agronomic techniques

A. F. Ramadan; B. H. Abduallah; F. H. Meckhlif

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2012, Volume 10, Issue 1, Pages 257-272

A field experiment was conducted on silty clay loam soil at Alkarmah– Al-Anbar province during summer season of 2009. The objective was to investigate the effect of three factors in vegetative, root growth, yield and quality of soybean Glycine max L. CV Forrest sowing method (furrow and lines sowing) weeding (twice weeding, once weeding and without weeding) and sowing dates (22 April, 1 June and 11 June). RCBD was used to arranged treatments in split– split plot system with three replicates.
Results were as followed:
1. Furrow sowing was significantly superior compared with lines sowing in all studied traits.
2. During the growing season, twice weeding was the best treatment compared with once weeding treatment and the control (without weeding) in most of the studied traits except for internode length rate which the control showed its higher value.
3. The sowing date of April 22 gave the highest means in all studied traits against the other sowing dates, 1 and 11 May.
It could be concluded that the best results had been achieved by furrow sowing compained with twice weeding during the growing season and the sowing date of April 22.

Effect of using co- inoculums bacteria (Bradyrhizobium japonicum and Pseudomonas puteida ) to the improvement environment and Soybean growth and yield

Ali H. A. AL-Mansur

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2011, Volume 9, Issue 2, Pages 286-293

Abstract
The present study was carried out to regulate the microbial activity in soil environment to be suitable for soybean so as the increase the activity of rhizobia fertelizering forming nodules and increasing the microbial inoculum activity through providing plant nutrients.
A pot experiment was conducted by culturing soybean seeds (gesa-65)in sandy loam soil. Tow isolates of Bradyrhizobium japonicum and Pseudomonas puteida were used after evaluating their activities in the laboratory as co- inoculums in addition to the treatment of a single B. japonicum as well as a control treatment .
Results have showd the ability of two isolates to produce IAA and dissolve phosphate compounds. P. puteida was able to produce NH3 and HCN as well as sidrophores and inhibit the growth of F. oxysporum mycelium. The co- inoculums of the two isolates were efficient for activity the highest rate of plant growth 93%, and nodules formation estimated after month of plant growth 42 nodule 90% activity. Also, the two isolates improved the nutrient status N, P ( 20.3,210 mg/kg soil) They increase the microbial density that dissolves phosphates and nitrogen fixation in the plant environment (5.26 ,5.32 Log cfu/g).The activity of the two isolates in soil environment was increasing the dry weight of the roots, vegetables, number of nodules , yields( 22.12 ,74.32 ,80 , 85.3 / plant), P and N conteats and protein percentage 36.25%.

EFFECT OF FERTILIZATION OF, NITROGEN, PHOSPHORUS, AND POTASSIUM ON GROWTH AND YIELD OF SOYBEAN CROP

J. M.Al-Jumeily

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 135-140

The study was conducuted during 2004 season in Esehaki To find out the response of growth and yield soybean crop to nitrogen ,phosphorus and potassium Fertilizer in defferent levels. A randmized complete block design was used in afactorial experiment with three replication .The treatments included Tow cultivars (TN12 and DT84) with seven levels of NPK Fertilizer. The results showed that TN12 had higher yield of seed (1187.9) Kg/ ha. and nomber of pods per plant (33.3), No. of seed per pod (2.5) and higher plant height (65.1) cm. The treatment 140 kg N + 240 kg P2O5 + 75 kg K2O/ ha. was gaves higher yield (1309.2 Kg/ ha), (34.2) pods/ plant and (12.7) gram wieght of 100 seeds. A significant interaction between cultivars and Fertilizer levels was found. with treatment (T6) and cultivars (TN12 and DT84) produced higher yield and yield components.

EFFECT OF PLANTING DATE ON GROWTH AND YIELD OF SOYBEAN (Glycine max L. Merrill)

J. M.Al-Jumeily

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 141-148

The study was conducted during 2003 and 2004 season in Esghaki to find out the response of growth and yield soybean crop to planting dates. A Randomaized Complete Block Design was used in Afactorial Experiment with three replications. The treatments included three planting dates (Mide Jun, end Jun and Mid July) and three cultivars (Lee74, TN12, DT84). The results showed significant differences among planting dates in seed yield and number of pods in plant. The planting date in the end of Jun gave (2302.52, 2001.96) Kg/ ha. And (32.56, 31.51) pods/ plant in both year of study. The cultivar Lee74 produced higher seeds yield (2265.95, 2170.43) Kg/ ha. Caltivar DT84 gave higher plant hight (61.21, 78.95) cm. The interaction between Lee74 and the planting date in the end of July gave higher seeds yield.