Evaluation of non linear regression models to description germination rate of Arugula (Eruca sativa Mill.) to temperature and water potential
Batool
Nezhad Hasan
دانشجو
author
Asieh
Siahmarguei
استادیار دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
Ebrahim
Zeinali
استادیار دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
Farshid
Ghaderifar
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
elyas
Soltani
Assistant Professor, Department of Agronomy and Plant Breeding, Aburaihan Campus, University of Tehran, Pakdasht, Iran
author
text
article
2017
per
This study aimed to evaluate the non-linear regression model (Beta-original, Beta-modified, Segmented and Dent-like Models) to describe the germination rate of Arugula (Eruca sativa Mill.), temperature and water potential factorial a completely randomized design with four replications in Gorgan University of Agricultural Sciences and Natural Resources was performed in 1392. Treatments were temperature to 9 levels (2.5, 5, 10, 15, 20, 25, 30, 35 and 38 ° C) and water potential to 8 levels (0, -0.2, -0.4, -0.6, -0.8, -1.0, -1.2- and -1.4 Mpa). To quantify the response of germination rate to temperature and to determine cardinal temperatures for germination, Beta-original, and Beta-modified, Segmented and Dent-like models were used. The Beta-original model descript germination rate to temperature better than the others. According to this model the base temperature, optimum temperature and ceiling temperatures were 0.0, 30.13 and 38.50 0C respectively in non-stress conditions (zero potential). Changes of water potential had significantly effect on optimum and ceiling temperature but had no significantly effect on base temperature and biological hours.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
1
16
https://jms.guilan.ac.ir/article_2494_58675acfe8b033bc06b351bb1b803ccb.pdf
dx.doi.org/10.22124/jms.2017.2494
Effect of different hormone treatments on the growth and grain yield of maize in irrigation different levels
Elnaz
Farajzadeh
استاد
author
Mehrdad
Yarnia
استاد
author
Vahid
Ahmadzadeh
فارغ التحصیل
author
Nooshin
Farajzadeh
استاد
author
text
article
2017
per
This investigation had done in order to survey effect of water shortage (irrigation after 70 and 140 mm evaporation from evaporation basin) and priming by different hormones (control, salicylic acid, cytokinin and jibberellin) at different concentrations (control, 50 and 100 ppm) based on complete randomized blocks design with three replications in 2015 in the fields of Islamic Azad University Malakan on maize 704. Analysis of variance due to irrigation levels and hormone had significant effect on all traits and seed weight had no significant effect on the type of hormone. Different Concentration hormun in crop height, biomass, ear diameter, number of seeds per ear, number of kernels in a row, seed weight and seed yield had a significant effect. Irrigation after 140 mm evaporation from evaporation pan can reduce seed yield, seed weight and seed number per ear of corn and priming with various hormones were increased corn yield even under Irrigation after 70 mm evaporation from evaporation pan. 50 and 100 ppm concentrations Salicylic acid 33.3 and 38.8 % respectively and 100 ppm concentration of cytokinin and gibberellic 65.1 and 49.1% increase corn yield respectively. Irrigation after 140 mm evaporation from evaporation pan and priming both the impact on yield components (number of seeds and 100 seed weight) of corn grain yield changes was made.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
17
30
https://jms.guilan.ac.ir/article_2410_259c2e1e113cd493fa4d973b34a5bf75.pdf
dx.doi.org/10.22124/jms.2017.2410
Evaluating hetrotoxicity potential of decomposed plant residues of Secale cereale and Lolium rigidum on some traits of germination, chlorophyll and phenols of barley seed (Sahra variety)
Gelareh
Ghagha Mirzaie
دانشگاه گنبد کاووس
author
Ebrahim
Gholamalipour Alamdari
دانشگاه گنبد کاووس
author
Ali
Nakhzari Moghadam
دانشگاه گنبد کاووس
author
Ali
Rahemi
دانشگاه گنبد
author
text
article
2017
per
An experiment was conducted to evaluate the hetrotoxicity potential of decayed plant parts of the two weed species: i.e. Secale cereale and Lolium rigidum in various phenological stages on germination traits, chlorophyll content and total phenols content of barely seed (the variety of Sahra) in the primary stage of germination in pot culture and weed science laboratory of Gonbad Kavous University. In this experiment, various quantities of the prepared powder from whole organs of the every weed (0, 2, 4, 8, 16 and 32 g per one kg loamy soil) were kept to decay in the pot culture for 40 days. Then 20g of decomposed residues in various quantities were placed in sterilized petridish as the factorial experiment based on the compeletly randomized design in three replications were added for every weed individually. In the experiment the traits such as germination percentage, germination rate, radicle and shoot length, vigor index and content of chloropyll a, b, total as well as total phenols content were measured. Results showed that the interaction effects of the phenological stages and various quantities of the plant residues of Secale cereale weed on the whole studied traits except total phenols content were significant. Regarding Lolium rigidum, the results were similar to the results of the Secale cereale except the interaction effect of these factors on the germination percent, the rate of germination and chlorophyll b content (p<0.01). On the basis of these results, the inhibition rate of decomposed plant material from Secale cereale and Lolium rigidum weeds on the traits of germination and the chlorophyll content of the barley depend on the quantities and phonological stage of the weeds. Thus the most hetrotoxicity effect on the studied traits was observed in the end of the growth at the rate of 32g. Negative influence on the traits of the germination and chlorophyll content might be due to different organic and the inorganic constituents as well as strong allelopathic potential of the weeds at cellular or organ level, resulting from negative impact on the studied traits. The amount of phenols was increased with the rise of the plant residues of the both weeds.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
31
44
https://jms.guilan.ac.ir/article_2495_78604929716479e8c47f9213ba4d1aca.pdf
dx.doi.org/10.22124/jms.2017.2495
Effects of Composted Dairy Cattle Manure and Fresh Dairy Cattle Manure on Seedling Emergence and Seedling Growth of green foxtail (Setaria viridis) and velvetleaf (Abutilon theophrasti) seed
Marjan
Dianat
دانشگاه ازاد اسلامی- واحد علوم و تحقیقات
author
text
article
2017
per
Two separate experiments were conducted in 2014 as a randomized complete block design with four replications to evaluate the effect of application of composted and fresh cow manure on emergence and seedling growth of green foxtail and velvetleaf. Treatments consisted of composted dairy manure at 15, 30, and 60 T/ha, raw dairy manure at 40, 80, and 120 T/ha as well as a control pot, where no manure was added. Investigated traits were seedling emergence, leaf number, leaf area, plant height, plant dry weight and seed number. Results showed that maximum seedling emergence of green foxtail and velvetleaf occurred in nonamended soil (the control). For every measure of amendment with manure retarded growth compared to soil alone or compost-amended mixes. There were not differences in seed production of green foxtail between soil amended with compost and nonamended soil but seed production of velvetleaf was increased in soils amended with compost at 30 T/ha compared to the nonamended soil. Results showed that the differences exist between weed species studied in their response to soil amendments. Depending on the weed species present, use of composted or fresh manure may increase requirements for weed management
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
45
54
https://jms.guilan.ac.ir/article_2496_fda582897db7fde49e8386b004f62c00.pdf
dx.doi.org/10.22124/jms.2017.2496
Study on improvement possibility of germination traits and physical purity of Canola
(Brassica napus L.) seed by appropriate conditioning application
Hossein
Sadeghi
عضو هیات علمی / موسسه تحقیقات ثبت و گواهی بذر و نهال
author
Saman
Sheidaei
موسسه تحقیقات ثبت و گواهی بذر و نهال
author
Aazam
Dashti
موسسه تحقیقالت ثبت و گواهی بذر و نهال
author
text
article
2017
per
According to the effect of seed size on seed quality, this study was conducted in the Seed and Plant Certification and Registration Institute (SPCRI) in 2009-10, based on completely randomized design and with three replications. Studied factors(16 treatments) consisted of two canola cultivars (Okapi and Talaye), four separated seed sizes (1.4, 1.6, 1.8 and 2 mm) and two levels of using and none using of gravity separator tool. Based on the results using of 1.6 mm sieve size accompanied to gravity separator tool is recommended for cleaning these two varieties seed while germination percent and seedling emergence was improved and also higher seed loss percent was attained by using of sieves with 1.8 and 2 mm size. Whatever lower seed loss percent was attained using 1.4 mm sieve size but percentage of seed purity was decreased and also number of weed seeds increased which resulted in rejection at standard seed certification process. So the best treatment was related to the sieve with 1.6 mm size that was standard in the aspect of physical purity and germination percent
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
55
69
https://jms.guilan.ac.ir/article_2497_3807f587a0a19c52041b89954fa0dcc9.pdf
dx.doi.org/10.22124/jms.2017.2497
Packaging material effect on seed germination and vigour of two rice (Oryza sativa) cultivar under storage condition
Mohammad
Aliramaee
MSc Student of Seed Science and Technology . Azad University, Karaj. Iran
author
Ghasem
Tohidloo
Associated Professor of Agronomy and Plant Breeding Department of Azad University. Karaj. Iran.
author
Babak
Darvishi
عضو هیات علمی موسسه تحقیقات ثبت و گواهی بذر و نهال
author
text
article
2017
per
A factorial experiment was run based on a completely randomized design with 4 replications under storage condition of Mazandaran province. The experiment was included of two seed rice cultivars (first factor) and four types of packaging material (second factor): 1.Three layer paper bag, 2. Four layer paper bag, 3. Propylene + paper bag, 4. Propylene bag. Rice seed of both cultivars were packed separately using four packaging materials and stored for five months. Seed germination percentage, coefficient of germination rate, mean germination time, seedling length and weight vigor index were studied using seed standard germination test and cold test. Results showed that in both rice seeds (Shirudi and Fajr cultivars), the higher quality of rice seed (seed germination and seed vigor) was seen in propylene + paper bags in both testes. But the Fajr cultivar tolerated storage condition better than Shirudi cultivar. Four layer paper bags severely reduced viability, vigour and some other characteristics of seeds in both tests. It was found that rice seed storage in propylene + paper bags could maintain rice seed quality during storage period
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
71
82
https://jms.guilan.ac.ir/article_2498_1ebceac5748473ebfe7e00abaaa60900.pdf
dx.doi.org/10.22124/jms.2017.2498
Evaluation of various indicators related to physiological maturity, harvest time and highest seed quality determination in hybrid maize ( Zea mays L.)
Enayat
Rezvani-Khorshidi
دانشجوی دکتری دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
Farshid
Ghaderifar
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
Aidin
Hamidi
عضو هیات علمی موسسه تحقیقات ثبت و گواهی بذر و نهال
author
Elyas
Soltani
Assistant Professor, Department of Agronomy and Plant Breeding, Aburaihan Campus, University of Tehran, Pakdasht, Iran
author
text
article
2017
per
In order to study the seed quality indicators of hybrid maize seed at development and maturity stages and planning harvest time, an experiment was conducted in a complete randomized design, with three replications and five sowing dates (T1 = 22 April, T2 = 6 May, T3 = 21 May, T4 = 12 June and T5 = 29 June) in Karaj, Iran. Phenology and morphology related traits were evaluated during plant and seed growth. After pollination, Sampling from ears was done in weekly scale from female rows (B73 Inbred line). The harvested seeds were dried in open air condition, and then laboratory tests were done. Depends on the sowing date and temperature, seed filling rate (SFR) and periods (SFD) were significantly different. Physiological maturity or maximum normal seeding occurred around 47-68 days after flowering (DAF), when the seed moisture varied in a range of 40-54 % and mass maturity (maximum seed weight) occurred at 47-86 DAF, when the seed moisture ranges about 40-43%. But black layer in seed formed when the seed moisture was about 32-35%. So, maximum seed quality occurred earlier to mass maturity. While the black layer formation happened as the final stage of development. The more the delay in sowing dates, the higher the seed moisture for occurring mass and physiological maturity. Depends on the sowing date and appropriate drying, harvesting the seed at higher level of moisture was possible. It is more likely that seed moisture prepare a more suitable indicator for detecting the changes trend in mass and physiological maturity, in compared with DAF and GDD.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
83
95
https://jms.guilan.ac.ir/article_2499_a4f4ca9fc6bca589625928fe07bd07f8.pdf
dx.doi.org/10.22124/jms.2017.2499
The effect of TiO2 bulk and nanoparticles on indicators of Echinacea purpurea germination under drought stress
habibeh
behnam
M. Sc. student of Plant Production
author
Hassan
Feizi
Assistant Prof.
author
Masoud
Alipanah
Associate professor
author
mahdi
faravani
Assistant Professors
author
text
article
2017
per
The present study with the purpose to evaluate the effect of bulk and nanosized TiO2 on indicators ofPurple Coneflower germination under drought stress was conducted. The experiment was arranged as factorial based on completely randomized design with three replications was performed in medicinal plants laboratory at the University of Torbat Heydarieh. In this experiment first factor was all concentration of TiO2 bulk 0, 10, 50, 100 and 150 mg/L and nanosized TiO2 concentrations 0, 10, 50, 100 and 150 mg/L and second factors was drought stress from PEG6000 in levels of 0, -3, -6 and -9 bar. The Results showed that application of TiO2 on Coneflower seeds under drought stress had significant effects on root, shoot and seedling length and weight, vigor index I and II and mean germination time. Drought stress did not have negative effect on germination percentage, mean day germination (MDG) and vigor index I and II on Echinacea purpurea until -3 bar stress. The 150 mg/L concentration of TiO2 bulk particles improved shoot, root and seedling length three times more than control. In confronting with drought stress, the 10 mg/L concentration of TiO2 nanoparticles treatment had the least performance in most of the examined indicators and 100 mg/L of bulk and nanoparticles application improved most germination indicators of coneflower.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
97
107
https://jms.guilan.ac.ir/article_2500_961dd2b7fa97e0e6f2fa615cbcf0b9e3.pdf
dx.doi.org/10.22124/jms.2017.2500
Effect of drought stress during flowering and seed maturity of mother plant on some related to seed germination and seedling vigor traits of various oilseed rape (Brassica napus L.) winter cultivars
Amir Hossein
Mehdizadeh
Agronomy Msc graduate of Pishva Varamin Islamic Azad University
author
Amir Hosein
Shirani rad
استاد پژوهش موسسه تحقیقات اصلاح و تهیه نهال و بذر
author
Aidin
Hamidi
Seed and Plant Certification and Registration Institute(SPCRI)
author
Farshad
Ghooshchi
Islamic Azad University, Varamin(Pishva), Agriculture College
author
text
article
2017
per
In order to study drought stress during flowering and seed maturity and normal irrigation effect on mother plant on some seed germination and seedling vigor related traits of 10 oilseed rape winter cultivars, an experiment was conducted as factorial, based on completely randomize design by four replications, during 2013 in experimental field of Seed and Plant Improvement Institute (SPII) and seed quality analysis laboratory of Seed and Plant Certification Research Institution(SPCRI) at Karaj. Experiment treatments were seeds produced under normal irrigation(S1) and drought stress exertion by non irrigation at flowering and maturity stage(S2) of 10 oilseed rape winter cultivars. One thousand weight, density and electrical conductivity of seeds measured and by standard germination test conduction, final germination percent, mean germination time, seedling length and dry weight were determined. Results indicated that mean germination time and seedling length were not affected by studied treatments and also final germination percent of studied cultivars had not significant difference. Highest thousand seed weight was related to Zarfam cultivar which seeds produced by normal irrigation treatment and Orient and SLM046 cultivars had highest seed density produced by normal irrigation treatment. Zarfam cultivar seeds produced by drought stress treatment had highest and Milena and Modena cultivars seeds produced by normal irrigation treatment had lowest electrical conductivity. Seeds produced by normal irrigation treatment had highest final germination percent. Highest seedling dry weight in normal irrigation condition belong to Geronimo and under drought stress condition related to Okapi cultivar. Generally, this experiment results showed that drought stress at flowering and maturity duration caused studied genotypes seed quality decrease, but under that conditions, Geronimo, Zarfam, Dexter and Licord cultivars had higher seed thousand weight, Orient, Modena and Dexter cultivars more seed density, Milena and Modena cultivars lower electrical conductivity and, Okapi and Modena cultivars higher seedling dry weight in comparison with other studied cultivars. Therefore can produce those cultivars having relatively optimum germination quality and seedling vigor traits seed.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
109
121
https://jms.guilan.ac.ir/article_2501_215222dcbd82e04f0b6e3de4a24e2f4d.pdf
dx.doi.org/10.22124/jms.2017.2501
ReviewSeed technology and its role in reducing water use
Abbas
Dehshiri
Seed and Plant Certification and Registration Institute
author
Leila
Zare
Seed and Plant Certification and Registration Institute
author
Ali
Shayanfar
Seed and Plant Certification and Registration Institute
author
text
article
2017
per
Seed quality technology has many improvements in recent decades and present new methods and equipment in seed processing, coating, healthing, priming, breeding and … yearly. The target of this paper is a brief viewpoint to the role of these technologies in increase productivity and reduce consumption of water. Different angles of this subject has been paid such as effect on increase yield, prevent of yield and production decrease, reduce water consumption and seed rate reduction. The effect of different separating factors on yield production and reduce water consumption is not easily executable and needs many accurate research. For clarification the subject based on available scattered research and statistics we approximately calculate and results reveled that access to saving water consumption is feasible by seed technology.
Iranian Journal of Seed Sciences and Research
University of Guilan
2476-3780
4
v.
2
no.
2017
123
133
https://jms.guilan.ac.ir/article_2502_686d1a98491a48ad657de8a6147e23ac.pdf
dx.doi.org/10.22124/jms.2017.2502