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Open Access Article

1 - The study of mini-tubers production potential in micro-tuber of different potato cultivars under greenhouse conditions
Davood Hassan panah

This research was conducted to evaluate mini-tubers production potential in micro-tuber different potato cultivars under greenhouse conditions in Ardabil Agricultural and Natural Resources Research Station during 2010. Micro-tubers less than 1g of eight potato cultivars More

This research was conducted to evaluate mini-tubers production potential in micro-tuber different potato cultivars under greenhouse conditions in Ardabil Agricultural and Natural Resources Research Station during 2010. Micro-tubers less than 1g of eight potato cultivars (Satina, Caesar, Marfona, Luta, Agria, Markies, Hermes and Savalan) were cultured on completely randomized design with three replications. The micro-tubers were planted in Biolan and Punch bed planting to volume ratio of 1:1 in plastic as pots 10×10 cm. Analysis of variance for measured traits showed that potato cultivars in all of traits had significant difference. The maximum mini-tuber number per m2 belonged to Agria cultivar; mini-tuber weight per m2 and mini-tuber size average belonged to Savalan cultivar; mini-tuber number and weight higher than 10 g belonged to Savalan and Satina cultivars; mini-tuber number and weight between 7-10 g belonged to Agria and Satina cultivars. Manuscript profile

Open Access Article

2 - The study of micro-tubers production potential in potato different cultivars plantlets under in vitro condition
Mostafa Jahani Jelodarlu MohammadAli Ebrahimi Davood Hasanpanah kolor

This research were conducted to evaluate micro-tubers production potential in plantlets different potato cultivars under in vitro condition in the tissue culture laboratory of Bahparvar Sabalan Company during 2013. The plantlets of five potato cultivars (Agria, Sante, M More

This research were conducted to evaluate micro-tubers production potential in plantlets different potato cultivars under in vitro condition in the tissue culture laboratory of Bahparvar Sabalan Company during 2013. The plantlets of five potato cultivars (Agria, Sante, Marfona, Savalan and Caesar) from meristem culture under in vitro condition by single nod cuttings method were amplified and from these plantlets were used to production micro-tubers. Analysis of variance for measured traits showed that potato cultivars in micro-tuber number, weight and diameter per plantlet, number of leave per plantlet and plantlet height had significant difference. The maximum of micro-tuber diameter per plantlet belonged to Marfona and Caesar cultivars, micro-tuber weight per plantlet belonged to Sante and Marfona cultivars, micro-tuber number per plantlet belonged to Sante, Marfona, Agria and Savalan cultivars, leave number per plantlet belonged to Sante, Savalan, Marfona and Caesar cultivars and plantlet height belonged to Caesar, Savalan and Marfona cultivars were. Linear correlation coefficients between traits showed that micro-tuber weight produced per plantlet with micro-tuber number per plantlet and number of leave per plantlet, and micro-tuber diameter with number of leave per plantlet had significant positive relationship. Based on the results of cluster analysis, the second group with Sante, savalan, Caesar and Marfona cultivars were selected the better cultivars. Manuscript profile

Open Access Article

3 - Evaluating the Different Levels of Diaminozied on the Five Mini-Tuber Potato Cultivars produced by Tissue Culture under Greenhouse Condition
مهدی Soleimani Agdam M. Valizadeh A.A. Imani D. Hassan Panah Sh. Azizi

To evaluate the effect of different levels of diaminozied on the potato cultivars mini-tubers produced by tissue culture under greenhouse condition a factorial an experiment on the base of completely randomized design in three replications was performed at the Ardabil V More

To evaluate the effect of different levels of diaminozied on the potato cultivars mini-tubers produced by tissue culture under greenhouse condition a factorial an experiment on the base of completely randomized design in three replications was performed at the Ardabil Villkige Company Greenhouse in 2010. The first factor consisted of four levels of diaminozied, as plant growth regulator, (0, 40, 80 and 120 mg.L-1) and the second factor of five cultivars of virus-free potato (Satina, Savalan, Marfona, Agria and Cesear). Virus-free plantlets were transferred to isolated greenhouse and planted in 20×20×15 cm in plastic pots beds made by 1:1 volume of Biolan peat moss and perlite. During growth period traits like plant height, leaf and stem number per plant, mini-tuber weight and number per plant and square meter, and mini-tuber size were average measured. The analysis of variance showed significant differences among different levels of diaminozied for leaf number per plant, mini-tuber weight and its number per square meter, tuber average size in all cultivars under study. The interaction of diaminozied by cultivars showed significant difference as to leaf number per plant, mini-tuber weight, its number per square meter and average tuber size. Cesear and Marfona cultivars produced higher mini-tuber weight and tuber number per square meter by applying 40 mg.L-1 diaminozied. The correlation was significant and positive between mini-tuber number per square meter with mini-tuber weight per square meter and root length. It was also significant and positive between mini-tuber weight per square meter with plant height and average mini-tuber size. The results of multi regression analysis indicated that mini-tuber weight per square meter, average tuber size, plant height and root length were effective on changes of the mini-tuber number. The highest positive direct effect on number of mini-tuber per square meter was due to the plant height and the less negative direct effect to the mini-tuber weight per square meter.  Manuscript profile

Open Access Article

4 - Evaluation of the Effect of Flower Removal and Size of Mini-Tuber on the Yield and Yield Components of Agria Potato Cultivar by Using Two Methods of Planting
M. Goldust Jelodar M.B. Khorshidi Benam D. Hassanpanah Sh. Azizi

In order to evaluate the effect of flower removal and sized of mini-tuber size on the yield and yield components of Agria potato cultivar by using two methods of planting, a factorial experiment based complete randomized blocks design with three replication was conducte More

In order to evaluate the effect of flower removal and sized of mini-tuber size on the yield and yield components of Agria potato cultivar by using two methods of planting, a factorial experiment based complete randomized blocks design with three replication was conducted in Ardabil, Iran.  Factors consisted of as two planting methods (planting mini-tuber planting in the furrow and on the ridge). B: four mini-tuber seedling sizes (5, 15, 25 and 35 mm in diameter) and C: (flowers were intact or removed. During the growing period and after harvesting the attributes measured were main stem number per plant, plant height, tuber number per plant, tuber weight per plant, marketable tuber yield and total tuber yield. The result of variance analysis showed that there were significant differences between planting methods and treatments of flower concerning yield. The results indicated mini-tuber seedling sizes at 15, 25, and 35 mm in both planting methods resulted in higher yield. The planting in furrow yieled better as compared to ridge planting. There was significant difference between flower removal as compared to that of intact ones. The linear correlation showed significant and positive relationship between total tuber yield with plant height, tuber number per plant, tuber weight per plant and marketable tuber yield. According to the results, the mini-tuber size by 15 and 25 mm and planting in furrow and flower removal produced highest number of tubers and tuber weight per plant, marketable tuber yield and total tuber yield.  Manuscript profile

Open Access Article

5 - Effects of Different Planting Beds on Mini-Tubers Production Two Potato Cultivars in Greenhouse Conditions
D. Hassanpanah

This research was conducted to evaluate the effects different planting beds on the mini-tuber production Agria and Savalan cultivars of potato in both laboratory and greenhouse of "Ardabil Potato Seed Production Company of Dasht-Zarrin" during 2009. Experiment was facto More

This research was conducted to evaluate the effects different planting beds on the mini-tuber production Agria and Savalan cultivars of potato in both laboratory and greenhouse of "Ardabil Potato Seed Production Company of Dasht-Zarrin" during 2009. Experiment was factorial based on completely randomized complete block design with three replications and two factors. Factor A consisted of two potato cultivars (Agria and Savalan) and factor B of four planting beds (Biolan, Terracult, Cocopeat and soil as control). Analysis of variance of measured traits showed that differences of planting beds, cultivars and interaction between cultivar × planting bed concerning the number and weight mini-tuber per m2, average size of mini-tuber and plant height were significant. Savalan produced highest mini-tuber number, weight per m2 andplant height, and Agria had the highest average size of mini-tuber when Terracult planting bed was used. Correlation between mini-tuber weight per m2 with plant was positive and significant. Manuscript profile

Open Access Article

6 - Evaluating Potential Production of Mid-Late Maturing Minituber of Potato Cultivars and Promising Clones under Aeroponic System
D. HassanPanah

This study was performed to investigate potential production of mid-late maturing promising mini-tuber clones and cultivars under aeroponic system during 2011-2013 in both laboratory and greenhouse of Ardabil Sabalan Behparvar Company. Five clones and cultivars (three p More

This study was performed to investigate potential production of mid-late maturing promising mini-tuber clones and cultivars under aeroponic system during 2011-2013 in both laboratory and greenhouse of Ardabil Sabalan Behparvar Company. Five clones and cultivars (three promising clones 397009-3, 397082-10 and 397081-1, and two cultivars, Khavaran and Agria) were evaluated in completely randomized designs with three replications. During growing period and after harvesting the crop some important traits like plant height, main stem number per plant, mini-tuber number and weight per square meter, mean mini-tuber weight per square meter and storability of mini-tubers were measured. Analysis of variance showed that mini-tuber number and weight per square meter, mean mini-tuber weight per square meter, plant height and main stem number per plant among clones and cultivars were significantly different. The mid-late maturity promising clones of 397081-1 and 397009-3 produced higher mini-tuber number per square meter (2766 and 2141 mini-tubers, respectively), mini-tuber weight per square meter (11400 and 16500 g, respectively) than the remaining types. Mid-late maturity promising clone of 397081-1 also produced higher mean mini-tuber weight per square meter (5.59 g) and plant height (174 cm) as compared with the others. The differences per square meter in the number of mini-tuber of mid-late maturing promising clones of 397081-1 and 397009-3 with Agria cultivar were about 1166 and 541, respectively. Mean mini-tuber weight per square meter in aeroponic system was 6.16 grams. Manuscript profile

Open Access Article

7 - The effect of mini-tuber size and chemical treatments on breaking seed dormancy of potato (Solanum tuberosum L.)
marjaneh Mansur Reza Zarghami Mehrdad Chaichi Mohsen Pourahmadi

Seed dormancy is one of the important problems among potato minitubers. It decreases the germination percentage by rotting the tubers. To overcome this problem an experiment was conducted at Agricultural Research Institute of Hamedan in 2012-2013. The experiments were c More

Seed dormancy is one of the important problems among potato minitubers. It decreases the germination percentage by rotting the tubers. To overcome this problem an experiment was conducted at Agricultural Research Institute of Hamedan in 2012-2013. The experiments were carried out in factorial randomized complete design with two different treatments, the weight of minituber in three levels (1-3 g, 3-5 g and 5-10 g) and chemical treatments in seven levels (no treatment, 150 ppm gibberellic acid in 1 h, 300 ppm gibberellic acid in 1 h, 1% thiourea in 1 h, 0.5% thiourea in 1 h, 45 ml.m-3 carbon disulfide in 24 h, 45 ml.m-3 carbon disulfide in 48 h) with three replications per treatment. The Sante variety was tested for minituber size. After seed dormancy breakage, the days to germination, number of sprouts per minitubers and the sprout diameter were studied and then the mini-tubers were grown in pots. After tuber collection (harvesting), the number of tuber per plant, tuber weight and the total weight of all tubers were measured. We observed the highest stem diameter in 5 – 10 g tubers and the lowest sprout length in 1-3 g tubers. Also, among different breaking seed dormancy treatments, the 45 ml carbon disulfide in 48 h showed the significant increase in sprout length compare to the 45 ml carbon disulfide in 24 h which resulted the highest tuber size and weight. The gibberellic acid (300 ppm) treatment showed the highest number of tubers. The interaction study among treatments showed that, the 45 ml carbon disulfide in 48 h produced tubers with different size and they were high in weight compare to the others.   Manuscript profile

Open Access Article

8 - Possible production of mini-tuber in aeroponic syetem and its comparison with conventional cultivation method
Davoud Hassanpanah

This study was performed to examine the possibile production of mini-tubers (seeds) of two potato cultivars (Savalan and Agria) in an aeroponic system and its comparison with the conventional cultivation method in 2009 at Seed Production Company of Dashte-Zarin, Ardebil More

This study was performed to examine the possibile production of mini-tubers (seeds) of two potato cultivars (Savalan and Agria) in an aeroponic system and its comparison with the conventional cultivation method in 2009 at Seed Production Company of Dashte-Zarin, Ardebil. Seedlings obtained from tissue culture were transferred to an adaptation room and then planted in the greenhouse under in vivo conditions. In both aeroponic and conventional systems, a completely randomized design with three replications having plant densities of 10×10 cm2 was used. During the growth period and after harvest, characteristics like root length, stolon length, plant height, number and weight of mini-tubers per plant and m2, average of mini-tuber size and mini-tuber storage durability were measured. Analysis of variance showed that there were significant differences between two systems, two cultivars and their interactions for the number and weight of mini-tuber/ m2, average of mini-tuber size, plant height and stolon length. Savalan cultivar had higher mini-tuber number and weight (per m2), stolon length and root length than Agria cultivar. Number and weight (per m2) of mini-tubers, in an aeroponic system was 110% and 38% higher than the conventional method, respectively. In this experiment, because of increasing 493 mini-tuber/m2, aeroponic approch was chosed and recommended for potato seed production. Manuscript profile

Open Access Article

9 - Effect of gibberellic acid on dormancy breaking of Agria potato seed mini-tubers
Mohammad Bager Khorshidi Davood Hassanpanah

In order to study the effect of gibberellic acid on potato mini-tubers, Agria cultivar, newly produced mini-tubers from healthy and diseases free seedlings were studied at four seed size groups (18-22, 13-17, 8-12 and less than 8 mm) after treating with 1000 ppm gibbere More

In order to study the effect of gibberellic acid on potato mini-tubers, Agria cultivar, newly produced mini-tubers from healthy and diseases free seedlings were studied at four seed size groups (18-22, 13-17, 8-12 and less than 8 mm) after treating with 1000 ppm gibberellic acid in different sampling dates (30, 40, 60, 90 and 110 days after treating with gibberellic acid). Experimental design was completely randomized design based factorial with three replications. Number of days from treating with gibberellic acid to sprouting was considered as dormancy period. Other traits such as number of days to emergence, number of germinated mini-tubers, sprouting percentage and length of buds were measured. Results showed that there were significant differences among gibberellic acid treated and non-treated, different seed size groups, different sampling dates and those interactions for all traits. The earliest sprouting, the most sprouting percentage and the longest sprouts were observed in 18-22 mm seed size group. Therefore it was concluded that gibberellic acid caused decreasing dormancy period of mini-tubers from 90-110 to 40-60 days. Also, the smaller mini-tubers were the late sprouting and had short sprouts. Manuscript profile

Open Access Article

10 - Effect of planting bed and soilless media on growth and yield of potato minitubers
Monireh Hajiaghaei Kamrani Kazem Hashemimajd Nosratollah Najafi Hadi Hosseinniya

The present study was conducted in a randomized complete block design with eight treatments and four replications. Eight types of potting media including perlite, perlite + vermiculite (1:1 v:v), perlite + peat moss (1:1 v:v), soil + perlite (1:1 v:v), perlite + soil + More

The present study was conducted in a randomized complete block design with eight treatments and four replications. Eight types of potting media including perlite, perlite + vermiculite (1:1 v:v), perlite + peat moss (1:1 v:v), soil + perlite (1:1 v:v), perlite + soil + cow manure compost (4:3:3 v:v), perlite + soil + vermicompost (4:3:3 v:v:v), field soil and perlite + peat moss as conventional nutrient solution and planting media used in greenhouse (Control). During the growing season, the leaf area, plant height, stem basal diameter, tuber fresh and dry weight, tuber specific weight and tuber number per plant were measured. Analysis of variance showed significant differences between treatments in leaf area index, plant height, tuber number per plant and stem basal diameter. Growth and production of minituber were low in soil and soil containing medium. Therefore, the productivity of local soil was not corrected by any soil amendments. Soil containing medium had the highest bulk and particle density, EC and pH and the lowest porosity then produced the lowest number of tubers and fresh and dry weight of tubers. The highest number of tubers was produced in perlit + peat moss treatment. The maximum amounts of plant height were recorded in soil + perlite + compost treatments. The perlite + peat moss medium (1:1 v:v) is recommended for production of potato minitubers. Manuscript profile

Open Access Article

11 - Effects of thiourea on dormancy break and yield production of potato (Solanum tuberosum L.) minitubers of Agria cultivar in the glasshouse
Sardar Germchi Mohammad Bager Khorshidi Benam davod hasanpanah

This experiment was conducted to study the effects of thiourea application on dormancy break of minitubers in Agria cultivar of poatato in the glasshouse in 2006. Thiourea was used at three levels as 0, 0.5, and 1% solutions  using  a  completely  ra More

This experiment was conducted to study the effects of thiourea application on dormancy break of minitubers in Agria cultivar of poatato in the glasshouse in 2006. Thiourea was used at three levels as 0, 0.5, and 1% solutions  using  a  completely  randomized  design  with  three  replicates.  After  breaking  the  dormancy  of minitubers, characters like days to sprouting, length of the longest sprout, and sprout numbers were measured. Then, minitubers planted in pots and characters such as days to emergence, main stem numbers, and plant height were measured. Tuber numbers per plant, yield and mean tuber weight per plant was also calculated at harvest. The results of variance analysis displayed that thiourea affected all attributes, significantly. Application of 1% thiourea  shortened  duration  of  sprouting  from  60  to  26  days,  increased  sprout  numbers  from  1.8  to  3.1, accelerated sprout length from 1.8 to 4.1 cm, shortened days to emergence from 60 to 29 days, increased stem numbers from 1.2 to 2.4, lengthened plant height at least 30.6 cm, increased tuber numbers per plant from 5 to 9, decreased mean tuber weight per plant at least about 22.1 gr and enhanced total tuber weight per plant from 183 to 202 gr. Therefore, application of 1% thiourea is advisable for breaking minituber dormancy of potato for a short time and consequently, resulted in rapid emergence, and more minituber numbers per plant and higher tuber yield in Agria variety as compared with the non-treated minitubers. Manuscript profile

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