Plant Productions

Research Paper

Effect of irrigation deficit and cultivation method on some quantitative and qualitative characteristics of potato cultivars

R. Tofang Saz poor; H. Roshanfekr; M. Meskarbashee; S. Bromand Nasab

Volume 38, Issue 2 , September 2015, Pages 1-12

https://doi.org/10.22055/ppd.2015.11249

Abstract

In order to study of effect irrigation deficit and cultivation method on some quantitative and qualitative characteristics of potato cultivars, an experiment was carried out in split-split ... Read More

Research Paper

Effects of drought stress and soil compaction on some agronomic traits of maize (Zea mays L.)

A. Afarinesh; G. Fathi; R. Chugan; S.A. Syadat; Kh. Alamisaid; S.R. Ashrafizadeh

Volume 38, Issue 2 , September 2015, Pages 13-24

https://doi.org/10.22055/ppd.2015.11250

Abstract

In order to study the effect of drought stress and soil compaction on corn growth an experiment was carried out in 2012 at Safi Abad Agricultural Research Center. The treatments were ... Read More In order to study the effect of drought stress and soil compaction on corn growth an experiment was carried out in 2012 at Safi Abad Agricultural Research Center. The treatments were arranged in split plot in a randomized complete block design with three replications on 704 single cross hybrid corn. Drought stress was considered as the main plot at 4 levels (irrigation after 75, 95, 115 and 135 mm evaporation from A pan), and soil compaction was as the subplot at 4 levels (no traffic congestion, mild with four times, the average density with 8 times and the intensity density with 12 times of tractor traffic). Based on the results, the drought and soil compaction stresses affected many of the traits. The effects of drought and soil compaction were statistically significant on stem diameter, root deep, number of brace roots per plant, root and shoot dry weight, harvest index, number of ear bearing plants at harvest and grain yield characteristics. The effect of soil compaction stress was significant on root dry weight and reduced it. Only the effect of drought stress was significant on chlorophyll and protein characteristics. Brace roots growth in soil compaction stress conditions was stimulated and was higher than drought conditions. But grain yield was not affected by increasing the number of brace roots. Increase in soil compaction prevented root growth to depth. Conversely, the drought stress cause increased root growth to depth. Stresses weakened maize stem diameter with constant process. The constant processes were observed in reduction of shoot and grain yield dry weight by application of stresses. The drought stress more than soil compaction can affect chlorophyll and protein content of grain. This indicates the important role of water in the field. Drought stress was able to reduce the harvest index, but soil compaction in the most severe condition can reduce it. Both stresses reduced the number of ear bearing plants.

Research Paper

The effect of foliar application of ascorbic acid, thiamine and benzyl adenine on growth, flowering and some biochemical characteristics of marigold (tagetes erecta L.)

H. Hosseini; H. Farahmand; V. Saffari

Volume 38, Issue 2 , September 2015, Pages 25-36

https://doi.org/10.22055/ppd.2015.11251

Abstract

It is important to determine ways to increase flower quality, flowering period and some other characters related to bedding plants performance. Thus, a CRD-based factorial experiment ... Read More

Research Paper

Effects of S, B, Zn, and their interaction on quantitative and qualitative yields of rapeseed as second crop in the paddy field

M. Majidian; T. Shoja; M. Rabiei

Volume 38, Issue 2 , September 2015, Pages 35-50

https://doi.org/10.22055/ppd.2015.11252

Abstract

In order to the effects of elements zinc, boron and sulfur on quantitative and qualitative agronomic characteristics of rapeseed var. Hyola 401, an experiment was conducted in Rice ... Read More

Research Paper

Effect of fall rye, spring vetch and berseem clover cover crops on weeds control

R. Fakhari; A. Tobeh

Volume 38, Issue 2 , September 2015, Pages 51-63

https://doi.org/10.22055/ppd.2015.11253

Abstract

In order to study the effects of different cover crops in suppressing weed growth, an experiment based on the randomized complete block designs was carried out in the agricultural research ... Read More In order to study the effects of different cover crops in suppressing weed growth, an experiment based on the randomized complete block designs was carried out in the agricultural research station of Mohaghegh Ardabili University in 2012-2013 growing season with four replications. Treatments included fall rye (Secale cereale), spring vetch (Vicia villosa), and berseem clover (Trifolium alexandrium) along with the control treatment. Some traits of weeds and cover crops were measured 60 days after cropping (cover crops flowering) and 90 days after cropping (one month after cover crops were clipped from the ground level). Results of the analysis of variance showed that in two stages of sampling, plant density, crop height, fresh weight and dry weight of cover crops had significant differences. Fall rye, spring vetch and berseem clover decreased the density of common lambsquarter (Chenopodium album) compared with control about 69, 81 and 88 percent and dry weight of this weed in the second sampling about 73, 96 and 93 percent, respectively. Evaluation of the phonology weeds during the first sampling showed weeds were in vegetative phase along with the winter rye and spring vetch but were in the flowering phase accompanied by berseem clover, like control. In the second sampling stage, all three cover crops suppressed the growth of the weeds and kept them in the vegetative stage. For the bindweed (Convolvulus arvensis), percentage of decrease in density compared with control was about 77, 55 and 9 percent and dry weight loss was measured to be 78, 61 and 33 percent, respectively. Effect of the three cover crops on the control of the bindweed was lower than that of the Common Lambs quarter. This higher competitive potential against cover crops probably is due to the reserving organs. Cover crops of fall rye and spring vetch were the most suitable crops to weed control in the first stage, after control and Berseem clover was distinguished as the non-suitable one.

Research Paper

Effects of ascorbic acid on quantitative and qualitative characteristics of two Alternanthera repens genotypes ("Entire leaf "and "Undulate leaf") under salinity stress

D. Porghasemi; A. Rezaei Nejad; M. Chehrazi

Volume 38, Issue 2 , September 2015, Pages 65-76

https://doi.org/10.22055/ppd.2015.11254

Abstract

In order to study the effects of ascorbic acid as an important antioxidant reducing salinity damage, an experiment was conducted on two Althernantera genotypes (“Entire leaf” ... Read More

Research Paper

Morphological and Molecular Selection of Fertility Restorer Gene(s) in Segragating Populations of Rice

M. Eidi Kohnaki; Gh Kiani; Gh Nematzadeh

Volume 38, Issue 2 , September 2015, Pages 89-98

https://doi.org/10.22055/ppd.2015.11322

Abstract

Combination of classical breeding with molecular marker-assisted selection speeds up the development of new breeding lines. Lack of appropriate restorer varieties, the low number of ... Read More

Research Paper

Evaluation of the effect of humic acid and vermicompost on yield and yield components of three wheat cultivars in tropical regions

Sh. Shahbazi; E. Fateh; A. Aynehband

Volume 38, Issue 2 , September 2015, Pages 99-110

https://doi.org/10.22055/ppd.2015.11323

Abstract

In order to evaluate the effect of humic acid and vermicompost on yield and yield components of three wheat cultivars in tropical regions, an experiment was conducted in the research ... Read More

Research Paper

Identification of the self-incompatibility alleles in some Iranian apple cultivars (Malus domestica) using pcr

M. Nasrabady; E. Seifi; S. Ramezanpour; M. Sharifani

Volume 38, Issue 2 , September 2015, Pages 111-120

https://doi.org/10.22055/ppd.2015.11324

Abstract

Apple trees are self-incompatible like some of the other Rosaceous fruits. In apple, the self-incompatibility system is gametophytic and controlled via one locus with several alleles. ... Read More

Research Paper

Effect of potassium nitrate (KNO3) on some morphological and physiological characteristics of two tropical lawn (Cynodon dactylon L. and paspalum vaginatum L.) under salinity stress condition

Kh. Asadi vafa; M. Seiedi; M. Chehrazi; M. Sayari; N. Moallemi

Volume 38, Issue 2 , September 2015, Pages 121-133

https://doi.org/10.22055/ppd.2015.11325

Abstract

High level of sodium chloride is known to be the most widespread cause of saline soil environmental stress in dry and semi dry lands that ceases growth and yield of crop species. An ... Read More

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Volume & Issue: Volume 38, Issue 2, September 2015, Pages 1-154

Effect of irrigation deficit and cultivation method on some quantitative and qualitative characteristics of potato cultivars

Abstract

Effects of drought stress and soil compaction on some agronomic traits of maize (Zea mays L.)

Abstract

The effect of foliar application of ascorbic acid, thiamine and benzyl adenine on growth, flowering and some biochemical characteristics of marigold (tagetes erecta L.)

Abstract

Effects of S, B, Zn, and their interaction on quantitative and qualitative yields of rapeseed as second crop in the paddy field

Abstract

Effect of fall rye, spring vetch and berseem clover cover crops on weeds control

Abstract

Effects of ascorbic acid on quantitative and qualitative characteristics of two Alternanthera repens genotypes ("Entire leaf "and "Undulate leaf") under salinity stress

Abstract

Morphological and Molecular Selection of Fertility Restorer Gene(s) in Segragating Populations of Rice

Abstract

Evaluation of the effect of humic acid and vermicompost on yield and yield components of three wheat cultivars in tropical regions

Abstract

Identification of the self-incompatibility alleles in some Iranian apple cultivars (Malus domestica) using pcr

Abstract

Effect of potassium nitrate (KNO3) on some morphological and physiological characteristics of two tropical lawn (Cynodon dactylon L. and paspalum vaginatum L.) under salinity stress condition

Abstract