scholarly journals Ayçiçeğinin Çimlenme ve Fide Gelişimi Üzerine Kuraklık ve Sıcaklık Streslerinin Etkileri

2020 ◽  
Vol 8 (3) ◽  
pp. 598
Author(s):  
Nurgül Ergin ◽  
Mehmet Demir Kaya
Keyword(s):  
Low Temperature ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seedling Development ◽  
Shoot Length ◽  
Germination Time ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
Root And Shoot Length ◽  
Mean Germination Time

This study was aimed to determine the responses of some sunflower hybrids to drought and low temperature stresses during germination and seedling development period. Sunflower hybrids of Sanbro MR, 63LE113, 64LL62 and Meteor were used in the study. Germination percentage, mean germination time, root and shoot length, root / shoot ratio, seedling fresh and dry weight of the sunflower hybrids were investigated at two temperatures (low 15°C and optimum 25°C) and drought stresses (distilled water, -1.5, -3.0, -4.5 and -6.0 bar) induced by polyethylene glycol 6000. The results of the research showed that there were significant differences among the sunflower hybrids in terms of the investigated characteristics. Increased drought stresses led to decreasing germination percentage, root and shoot length, seedling fresh weight, but caused a prolonged germination time and increased seedling dry weight. No significant change was observed in the germination and seedling development of the sunflower up to drought of -3,0 bar. The root / shoot ratio of sunflower hybrids increased at 15°C. The Sanbro MR had the fastest and highest germination along with the highest seedling fresh and dry weight at low temperature and higher drought stresses. It was concluded that sunflower hybrid Sanbro MR gave better performance under drought and low temperature conditions than the other hybrids.

scholarly journals Allelopathy of Sage and White Wormwood on Purslane Germination and Seedling Growth

2010 ◽  
Vol 2 (3) ◽  
pp. 91-95 ◽  
Author(s):  
Alireza PIRZAD ◽  
Vahid GHASEMIAN ◽  
Reza DARVISHZADEH ◽  
Mohammad SEDGHI ◽  
Abbas HASSANI ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Untreated Control ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Root Shoot Ratio ◽  
Root And Shoot Length ◽  
Length Changes ◽  
White Wormwood

A bioassay run was carried out in the incubator to evaluate possible allelopathic effects of water extracts of sage and white wormwood on germination and seedling growth of purslane. Results showed that the type of extract and its concentration (0, 5, 10, 15 and 20%) significantly influenced final germination percentage, germination rate and index, root and shoot length, root/shoot ratio, fresh and dry weight of seedling of purslane. The interaction between these two experimental factors was always significant, producing different results according to the different combination levels. The statistical comparison of means indicated that the maximum germination percentage and germination rate (respectively 68% and 11.4% d-1) were obtained from the untreated control (0% extract), while the lowest values for the same two characters occurred with 15% of sage (respectively 45% and 6.4% d-1) and 20% of white wormwood (38% and 7.5% d-1). Concerning germination indexes, the highest (55) and the lowest (32) values were observed respectively on the control and with 15% of sage extract or 20% of white wormwood extract. The longest (4.5 cm) and the shortest (1.3 cm) root of purslane were obtained with 5% of white wormwood and 20% of sage extracts, respectively. Changes in shoot length with sage and white wormwood extracts were similar to those in root length, even though shoot length was less affected by the concentration of extracts. Root and shoot length changes brought to maximum (22.0) and minimum (8.9) values for the root/shoot length ratio, respectively with 5% of white wormwood and 20% of sage extracts. The maximum fresh (2.111 g) and dry (0.338 g) seedling weight of purslane were obtained from untreated control, producing the same seedling weight with 5% of sage, 5 and 10% of white wormwood extract. While the minimum fresh (0.692 g) and dry (0.111 g) seedling weight were obtained from 15% of white wormwood extract, so that there is no significant differences between this value and the seedling weight produced under 10, 15 and 20% of sage and 20% of white wormwood extract.

scholarly journals Effect of Osmopriming of Boro Rice Seeds on Field Establishment of Seedlings

2013 ◽  
Vol 1 (4) ◽  
pp. 228-232 ◽  
Author(s):  
P. K. Roy ◽  
M. A. R. Sarkar ◽  
S. K. Paul ◽  
A. Dey
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Rice Seed ◽  
Germination Time ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Vigor Index ◽  
Mean Germination Time ◽  
Germination Vigor

An experiment was conducted at the Seed Laboratory of the Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from January to April 2012 to study the effect of osmopriming of Boro rice seed (cv. BRRI dhan29). Seeds were soaked in 1%, 3% and 5% solutions of ZnSO4, KCl and CaCl2 for 24 hours, respectively, with 30 hours incubation at 35°C temperature. Seed quality tests such as percent germination, mean germination time, vigor index, shoot length, root length, shoot dry weight and root dry weight of rice seedlings were measured for all treatments. Population m-2 was also calculated to investigate the field establishment of primed seeds. The highest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the lowest mean germination time was observed from priming of seeds with 3% ZnSO4. Exceptionally, priming with 3% CaCl2 showed the highest root length at 30 DAS. On the contrary, 3% and 5% CaCl2 priming treatment showed the lowest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the highest mean germination time. It can be concluded that rice seed (cv. BRRI dhan29) can be primed with 3% ZnSO4 solution for improving germination and field establishment of rice seedlings.DOI: http://dx.doi.org/10.3126/ijasbt.v1i4.9131  Int J Appl Sci Biotechnol, Vol. 1(4): 228-232

scholarly journals A, The EXPLORING THE ALLELOPATHIC AND HERMETIC EFFECT OF KHATAMI (Altheae officinalis) ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)

2021 ◽  
Vol 27 (3) ◽  
pp. 321-330
Author(s):  
Bilal Ahmad Khan
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Root Length ◽  
Raphanus Sativus ◽  
Germination Percentage ◽  
Shoot Length ◽  
Fresh Weight ◽  
Germination Time ◽  
Shoot Fresh Weight ◽  
Mean Germination Time

Abstract Crop plants release biochemicals into surrounding environment that help in obtaining maximum yield of crop by acting bioherbicide at high concentration and plant growth hormone at low concentration. Therefore, this study was planned at Department of Agronomy in Weed Science Laboratory, University of Agriculture Faisalabad during Winter 2018 to evaluate the hermetic effects of Althaea officinalis L. (khatami) on vegetable crop Radish (Raphanus sativus) The experiments were laid out under completely randomized design (CRD) having three replications. The aqueous extracts of A. officinalis L. were used on radish different concentrations (2.5%, 5%, 10%, 20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length, root length, shoot fresh weight, root dry weigh) of radish were recorded using standard procedures. Results Reveals that the aqueous extract of A. officinalis at higher concentration (80%) act as bioherbicide and produced inhibitory effects on R. sativus result in Maximum time to 50% germination (4.68 days) and mean germination time (9.05 days) while minimum germination index (3.60), germination percentage (85.00%), shoot length (42.4 cm), root length (25.90 cm), shoot fresh weight (53.30 g) and root fresh weight (13.30 g). While at lower concentration (10%) it shows hermetic effect and produce maximum germination percentage (100.00%), shoot length (58.2 cm), root length (52.0 cm), shoot fresh weight (90.00g), root fresh weight (26.30 g) minimum time to complete 50% germination (3.36 days), germination index (6.00%) and mean germination time (5.73 days) growth. In A. officinalis among different phenolic compound minimum Syringic acid (0.60%) and maximum Quercetion (12.3%) compound was found. Therefore, it was concluded from this study that aqueous extract of officinalis can be used as growth promoter at lower concentration while at higher concentration for environmentally friendly control of weeds.

scholarly journals Effect of osmopriming on germination of rice seed

2016 ◽  
Vol 41 (3) ◽  
pp. 451-460 ◽  
Author(s):  
MN Hasan ◽  
MA Salam ◽  
MMI Chowdhury ◽  
M Sultana ◽  
N Islam
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Growth Parameters ◽  
Field Capacity ◽  
Dry Mass ◽  
Germination Percentage ◽  
Shoot Length ◽  
Rice Seed ◽  
Germination Time ◽  
Mean Germination Time

The experiment was conducted at the Seed Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from September to October, 2011 to study the effect of chemical priming of seed on germination and growth of rice seedling cv. BRRI dhan 29. Seeds were soaked in 3% and 5% solutions of CaCl2, ZnSO4 and KCl for 24, 30, 36, 42, 48, 54, 60 hours, respectively. A control was maintained where seeds were subjected to no priming treatment. The experiment was laid out in a Completely Randomized Design with three replications. Primed seeds were tested for germination and vigour on sandy soil media (60:40) in petridish under field capacity. Seed quality tests included mean germination time, shoot length, shoot dry mass, root length and root dry mass. The results revealed that priming treatments had significant influence on germination and all the growth parameters of rice seedlings. Priming with 3% ZnSO4 for 30 hours showed the highest germination percentage and the lowest mean germinaion time. Priming with 5% KCl for 54 hours showed the highest root length while 5% of the same solution for 24 hours showed the highest root dry mass. On the contrary, seeds having no priming treatment showed the lowest values for germination, vigour index, shoot length,shoot dry mass, root length and root dry mass and the highest mean germination time. The present study concludes that rice seed cv. BRRI dhan29 could be primed with 3% ZnSO4 solution for 30 hours for improving germination and seedling growth.Bangladesh J. Agril. Res. 41(3): 451-460, September 2016

scholarly journals Selenyum Uygulaması ile Yetiştirilen Adaçayı Bitkisinden Elde Edilen Hidrosollerin Çemen ve Kişniş Tohumlarının Çimlenmesi Üzerine Etkisi

2019 ◽  
Vol 7 (sp2) ◽  
pp. 36
Author(s):  
Ferit Özen ◽  
Gülsüm Yaldız ◽  
Mahmut Çamlıca ◽  
Halit Aşkın ◽  
Abdurrahman Başol
Keyword(s):  
Root Length ◽  
Germination Rate ◽  
Dry Weight ◽  
Shoot Length ◽  
Fresh Weight ◽  
Fenugreek Seeds ◽  
Mean Values ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
The Mean

This research was carried out in the climate chamber in order to determine the effect of hydrosols obtained from sage grown with selenium application on germination of fenugreek and coriander seeds. Different concentrations of sage hydrosol (2.5, 5, 7.5 and 10 ml) and purified water used as control were applied to the fenugreek and coriander seeds. Germination rate, fresh weight, dry weight, root length, shoot length and root / shoot ratio of fenugreek and coriander seeds were applied. Variance analysis was performed according to the split plot design and the mean values were compared with LSD test. According to the results of the research; germination rate of fenugreek seeds 38.35-51.00%, fresh weight 0.04-0.12 g, dry weight 0.001-0.035 g, root length 0.71-2.02 cm, shoot length 1.27-3.20 cm, root/shoot ratio varied between 0.34-0.82, germination rate of coriander seeds 18.61-39.21%, fresh weight 0.0011-0.034 g, dry weight 0.004-0.030 g, root length 1.5-4.58 cm, shoot length 1.08-3.69 cm, root/shoot ratio 0.47-2.51 were found. The highest germination rate was obtained in 2.5 ml dose of sage hydrosol (51.00%) in fenugreek seeds and the highest germination rate was found in 7.5 ml dose of sage hydrosol (39.21%) in coriander seeds.

scholarly journals Seed Quality of Sorghum [Sorghum Bicolor (L.) Moesch] as Affected By Seed Priming and Storage

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Awale Degewione Shirdon ◽  
Khalid Ibrahim Omer ◽  
R.P.S Tommer ◽  
Ketema Belete
Keyword(s):  
Seed Quality ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Storage Duration ◽  
Germination Time ◽  
Randomized Design ◽  
Mean Germination Time ◽  
Almost All

Sorghum is being produced primarily as a food grain throughout the world. It is one of the major traditional food crops in Ethiopia. However, the productivity of the crop is very low and poor seed quality is one of the major determinants. An experiment study was conducted in laboratory and glasshouse to evaluate the effect of seed priming on seed quality parameters of three sorghum varieties:(Muyra-I, Muyra-II and Fendisha) with different storage of one year and two years using different priming agents with different soaking time for each priming agent (1.0mM KNO3, 1mM NaCl and distilled water for 72, 48 and 12 hours respectively) in 2012 at Haramaya University Seed laboratory. Completely randomized design in 2 x 3 x 4 factorial arrangement with three replications was used to carry out the germination and vigor tests. The priming concentrations and durations were based on previous work, which was effective in hydro and osmo-conditioning of sorghum seed. In the experiment, seed priming increased germination percentage (GP), Mean Germination Time (MGT) and improved seedling shoot (SSL) and root length (SRL), seedling dry weight (SDW) and seedling vigor indices in all varieties of both storage durations compared to their respective control. Priming with NaCl and KNO3 showed positive response followed by hydropriming for all varieties of different storage duration. When treated with sodium chloride, almost all the varieties of each storage year demonstrated an increase in germination and the degree of increment was higher for Muyra-I(__) and Fendisha (___), the lowest being for Muyra-II which was significantly lower for both storage year. In case of mean germination time Fendisha exhibited better with hydropriming for older seeds (___) and with KNO3 for newer seeds(___) while Muyra-II and Muyra-I showed better with KNO3 (____) for older seeds and with hydropriming for newer seeds. Responses of varieties for the remaining parameters were intermediate. Therefore, sorghum seed priming with osmo-media and water can compensate storage deterioration of sorghum seeds in addition to significantly improving the seed germination and vigor quality parameters 

scholarly journals Germination and Seedling Parameters of Wheat as Affected by Storage Conditions

2021 ◽  
Vol 904 (1) ◽  
pp. 012035
Author(s):  
S E Seadh ◽  
M A Badawi ◽  
M A Abdel-Moneamand ◽  
M M E Borham
Keyword(s):  
Dry Weight ◽  
Storage Conditions ◽  
Germination Percentage ◽  
Germination Index ◽  
Seedling Vigor ◽  
Germination Time ◽  
Stored Wheat ◽  
Vigor Index ◽  
Mean Germination Time ◽  
Wheat Seeds

Abstract A storage experiment was carried out from 27th April to 27thDecember, 2019 to study the effect of storage conditions i.e. methods (open air, under sunshade and in stores), packages type (normal, gunny, polyethylene and metal containers) and periods of seeds fumigation with phosphine (15, 30 and 45 days) on germination and seedling parameters of wheat. The experiment was arranged in a factorial experiment in randomized complete block design (R.C.B.D.) with four replications. Stored wheat seeds under sunshade produced the highest values of final germination percentage, germination index, mean germination time, plumule length, radical length, seedling vigor index and seedlings dry weight, followed by stored wheat seeds in stores. The highest germination index, mean germination time, plumule and radical lengths, seedling vigor index and seedlings dry weight were recorded in the samples of wheat seeds sealed stored in metal containers, followed by normal stored in gunny packages. The highest percentage of final germination was obtained by normal stored in gunny packages, followed by sealing storage in metal containers. The highest final germination percentage, germination index, mean germination time, plumule length, radical length, seedling vigor index and seedlings dry weight and the lowest abnormal seedlings percentage, rotten and sold seeds percentages, speed germination index, co-efficient of germination and germination energy percentage were recorded when treated with phosphine at the rate of 3 tablets/m3after 15 days from beginning the storage. This study recommended that stored wheat seeds under sunshade in metal packages and treating with phosphine at the rate of 3 tablets/m3 after 15 days from beginning the storage to enhance germination and seedlings parameter of wheat under the environmental conditions of Dakahlia Governorate, Egypt.

scholarly journals Aspir Sap ve Köklerinden Elde Edilen Uçucu Yağların Buğday, Arpa, Ayçiçeği ve Nohutun Çimlenme ve Fide Gelişimine Etkileri

2016 ◽  
Vol 4 (8) ◽  
pp. 706 ◽  
Author(s):  
Sibel Day
Keyword(s):  
Essential Oil ◽  
Dry Weight ◽  
Root Extract ◽  
Oil Composition ◽  
Hordeum Vulgare L ◽  
Germination Time ◽  
Plant Parts ◽  
Root And Shoot Length ◽  
Mean Germination Time ◽  
Stem Extract

The phytotoxic impact of safflower extracts prepared by different plant parts like stem and root of it on germination and seedling growth of plants like wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) sunflower (Helianthus annuus L.) and chickpea (Cicer arietinum L.) were studied. Root and stem extracts of safflower at 2.5, 5 and 10% concentrations were obtained from safflower residuals after harvest of the plants. Mean germination time and percentage, root and shoot length, fresh and dry weight of seedlings were investigated. Essential oil composition of both root and stem extracts were determined. Results indicated that extract doses significantly influenced mean germination time of sunflower and chickpea. Germination time of wheat and barley also decreased with the increasing extract doses. The other growing parameters of all crops were also decreased with extract doses. The main essential oil compound of root extract was 1-Pentadecene (47.78%) followed by 2-Naphthalenemethanol (33.07%). The main essential oil compound of stem extract was 2-Naphthalenemethanol (49.15%) followed by Lauryl alcohol (22.26%). Root and stem extracts of safflower showed different effects. Stem extract mostly had severe impact on sunflower while root extract had this impact on wheat and barley. Consequently, removing stem parts of the safflower from field could reduce the amount of secondary metabolites released from the plant parts.

scholarly journals Germination and Biochemical Responses to Alkalinity Stress in Two Sesame Cultivars

2016 ◽  
Vol 73 (1) ◽  
pp. 79-86
Author(s):  
Batool Mahdavi
Keyword(s):  
Germination Rate ◽  
Soluble Sugars ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Percentage Germination ◽  
Total Soluble Sugars ◽  
Randomized Design ◽  
Root And Shoot Length ◽  
Completely Randomized Design

Abstract In this study, the effect of different alkaline concentrations (0, 10, 20, 30, 40, 50, 60 mM) on germination and biochemical characteristics of the two sesame (Sesamum indicum L.) cultivares (Dashtestan and GL-13) which are registered cultivars of Iran were investigated. The experiment was carried out in a completely randomized design with three replications. Results showed that, germination percentage, germination rate, shoot length and dry weight, root length and dry weight and K+ content decreased, whereas, malondialdehyde (MDA), proline, total soluble sugars and Na+ contents increased with increasing alkalinity stress. GL-13 cultivar had the least root and shoot length, proline and K+ content than Dashtestan.

scholarly journals Putrescine Improve Low Temperature Tolerance of Fennel (Foeniculum Vulgare Mill.) Seeds

2015 ◽  
Vol 48 (1) ◽  
pp. 69-76 ◽  
Author(s):  
S.H. Mustafavi ◽  
F. Shekari ◽  
A. Abbasi
Keyword(s):  
Low Temperature ◽  
Dry Weight ◽  
Germination Percentage ◽  
Temperature Tolerance ◽  
Foeniculum Vulgare ◽  
Low Temperature Tolerance ◽  
Root And Shoot Length ◽  
Two Samples ◽  
Germination Behaviour ◽  
High Concentrations

Abstract The effects of polyamine priming on the germination behaviour of fennel at low temperatures were investigated. For preparing the putrescine pretreatments, seeds were divided into four parts. Two samples primed into putrescine (10 or 20 ppm) for 24 h, other samples were as controls. In order to eliminate the effect of water from test results, seeds were soaked in water only. After the priming, seeds were dried and used for germination test at 10 and 20 ºC. Except for seedling dry weight, all of the priming treatments improved germination performance and seedling growth of fennel seeds. Maximum germination percentage was achieved by 10 ppm Put application and lower value was observed in control seeds. About the energy of germination and mean germination time, polyamine treatments had better effect than hydropriming, but similar results was observed from seeds treated by 10 ppm Put and hydroprime on root and shoot length. Results showed that adequate presence of Put in the priming media had better than priming with water only. However, high concentrations of Put had not significant effect as well as 10 ppm Put. These results indicated that 10 ppm Put priming could be as an effective method to improve low temperature tolerance of fennel seeds.

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