Evaluation of durum wheat advanced genotypes based on drought tolerance indices
Nasim
Khaksar
Ph. D. Student, Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Razi University, Kermanshah
author
Ezatollah
Farshadfar
Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Razi University, Kermanshah
author
Reza
Mohammadi
Assist. Prof., Dry land Agricultural Research
Sub-Institute, Sararood Station, Kermanshah
author
text
article
2013
per
To investigate drought tolerance indices and identify drought tolerant genotypes in durum wheat, 20 advanced durum wheat genotypes along with three checks, Zardak and Saji (durum wheat checks) and Sardari (bread wheat check) were assessed in a randomized complete block design with 3 replications under two rainfed and supplemental irrigation conditions in the Drayland Agricultural Research Sub-Institute (Sararood, Kermanshah, Iran) in 2010-11 cropping season. Drought tolerance indices i.e. mean productivity (MP), tolerance index (TOL), genomic mean productivity (GMP), harmonic mean (HAM), stress susceptibility index (SSI), stress tolerance index (STI), yield index (YI) and yield stability index (YSI) were calculated on the basis of grain yield in the both stress and non-stress conditions. The genotypes No. 2, 4, 8, 21 (Saji) and 18 with the highest values of MP, GMP, HAM and STI were found to be tolerant genotypes, while the genotypes 12, 21 (Zardak), 16 and 19 with the lowest values of TOL and SSI had the least susceptibility to drought stress. Biplot analysis indicated that the genotypes No. 8, 21 (Saji) and 18 were characterized by the indices of MP, GMP, HAM and STI as drought tolerant genotypes. The results of this research showed that in all of the genotypes, genotypes No. 8, 21 and 18 were tolerant genotypes.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
2013
267
279
https://cr.guilan.ac.ir/article_1511_84483deaa077a9899f362ce9a3f6a4d3.pdf
Competition of wheat (Triticum aestivum L.) and rye (Secale cereale) under different levels of soil salinity using replacement series experiment
Mohammad Javad
Babaie Zarch
Former Graduate Student, Dept. of Agronomy, Faculty of Agriculture, University of Birjand
author
Sohrab
Mahmoodi
Assoc. Prof., Dept. of Agronomy, Faculty of Agriculture, University of Birjand
author
text
article
2013
per
Agricultural production in arid and semi-arid regions always is affected by soil salinity and weeds competition. In order to study the effect of soil salinity on competition between wheat and rye, a factorial replacement series experiment based on completely randomized design with 3 replications was conducted in research greenhouse of faculty of Agriculture, at University of Birjand, in 2012. Four different ratios of wheat-rye (100-0, 75-25, 50-50, 25-75, 0-100 percentage) and 4 levels of soil salinity (2, 4, 8 and 16 dS.m-1) were used as experimental factors. The results indicated significant (P<0.01) effect of salinity on dry matters of wheat and rye. Increasing soil salinity from 2 to 16 dS.m-1 decreased 84% and 90% of the dry matter of rye and wheat, respectively. Competitive ability were more at salinity levels of 2 and 4 dS.m-1 in rye and 8 and 16 dS.m-1 in wheat. Investigation of competition by several indices indicated that increasing of salinity level can decrease competitive ability of rye versus wheat.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
2013
281
290
https://cr.guilan.ac.ir/article_1512_2214db46cfc75637886e3794e9cfaf71.pdf
Effect of foliar application of organic fertilizer complements on grain yield, yield components and quality in two rice (Oryza sativa L.) cultivars
Mahboobeh
Ashoori
Former M.Sc. Student, Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Sciences, University of Guilan
author
Masoud
Esfahani
Assoc. Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Sciences, University of Guilan
author
Shapour
Abdollahi
Researcher, Rice Research Institute of Iran (RRII)
author
Babak
Rabiei
Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Sciences, University of Guilan
author
text
article
1392
per
To evaluate the effect of organic fertilizer complements application (Aminol Forte, Fosnutren and Kadostim) on grain yield, milling properties and nitrogen use efficiency of two rice (Oryza sativa L.) cultivars, a field experiment in factorial layout and randomized complete block design with 10 treatments and 3 replications was conducted at Rice Research Institute of Iran in 2009. Treatments included: fertilizer in 5 levels [complete chemical fertilizer (for cv. Khazar: nitrogen 90, phosphorus 45 and potassium 75 kg.ha-1 and for cv. Hashemi: nitrogen 60, phosphorus 30 and potassium 50 kg.ha-1,respectively, complete chemical fertilizer + organic fertilizer complements (Aminol Forte, Fosnutren and Kadostim one l.ha-1 as a foliar application in tillering, booting and milk stages), 50% of chemical fertilizer + organic fertilizer complements, organic fertilizer complements and control (no fertilizer application)] and two rice cultivars (cv. Khazar and Hashemi). Traits that been measured were; grain yield and yield components, morphological characteristics, milling properties and nitrogen use efficiency.Results indicated that experimental treatments had a significant effect on the tillers fertility, number of filled grain. panicle-1, grain yield and 1000 grain weight. In this traits, complete chemical fertilizer and complete chemical fertilizer + organic fertilizer complements treatments had had similar effects and lowest amount obtained from organic fertilizer complements and control (no fertilizer application) treatments. The highest grain yield (5371 kg.ha-1) obtained in complete chemical fertilizer + organic fertilizer complements treatment. Organic fertilizer complement treatment and 50% of chemical fertilizer + organic fertilizer complement treatmentshowed the highest nitrogen uptake efficiency (26.4 kg.kg-1) and nitrogen harvest index (48.3 %), respectively. Results indicated that organic fertilizer complements application, eliminated chemical fertilizers rate that enhanced nitrogen uptake efficiency parameters.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
1392
291
305
https://cr.guilan.ac.ir/article_1513_327ab31733f5ad34b4e3e3d35eb0cd5a.pdf
Evaluation of oxadiargyl and thiobencarb herbicides efficacy on rice (Oryza sativa L.) yield and yield components
Somayeh
Nasiri
M.Sc. Student, Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Science, University of Guilan
author
Jafar
Asghari
Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Science,
University of Guilan
author
Habibollah
Samizadeh
Assoc. Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Science,
University of Guilan
author
Parastoo
Moradi
Ph. D. Student, Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Science, University of Guilan
author
Farzad
Shirzad
ostgraduate of Agronomy, Dept. of Agronomy and Plant Breeding, Faculty of Agricultural Science, University of Guilan
author
text
article
2013
per
To investigate the effect of various levels of Oxadiargyl and Thiobencarb herbicides on yield and yield components of rice (Oryza sativa cv. Hashemi), an experiment was carried out as a randomized complete block design with 8 treatments in 4 replications, in Rice Research Farm of Agriculture Faculty of Guilan University in 2011 growing season. In this experiment, the effects of Oxadiargyl (450, 900 and 1350 g.a.i ha-1) and Thiobencarb (1500, 3000 and 4500 g.a.i ha-1) herbicides were investigated. The two untreated control and hand weeding twice was also considered. Rice plant height, number of filled and unfilled grains per spike, grain yield and biological yield were significantly affected by treatments. But, there was no significant effecton 1000- grain weight and harvest index. The more than recommended concentration of Thiobencarb and Oxadiargyl increased 61/7 and 54/3 % the grain yield in comparison with untreated control that was not significantly different from each other. The Most plant height (134.6 cm), number of tillers (16.6), number of grains per spike (76.4) obtained at high concentration of Thiobencarb that 10 to 44 percent higher than untreated control. The lowest number of tillers, grains per spike and plant height obtained at untreated control and the lower than recommended concentration of two herbicides. In general, the high levelsof Thiobencarb and Oxadiargyl herbicides with control 75 and 69% of the total dry weight of weeds and 69 and 71% of the total density of weeds in comparing with untreated control showed higher efficiency in weeds control and performance better in comparing with low levels of self.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
2013
307
319
https://cr.guilan.ac.ir/article_1514_fc73ff5e5d9b1838f3eaab96efd4140b.pdf
Identification of genomic regions associated with iron accumulation at seed of barley doubled haploid population
Shiva
Gheitaran Poorsahrigh
Former Graduate Student, Dept. of Plant Breeding and Biotechnology, Faculty of Agriculture, Tabriz University
author
Seyed Abolghasem
Mohammadi
Prof., Dept. of Plant Breeding and Biotechnology, Faculty of Agriculture, Tabriz University.
author
Behzad
Sadeghzadeh
Dry land Agricultural Research Institute, Maragheh
author
text
article
2014
per
Iron is one of the essential micronutrient, which has an important role in nitrogen fixation and activity of some enzymes such as catalase, peroxidase and cytochrome oxidase. To map QTLs for the traits associated with iron accumulation in barley, 148 doubled haploid lines derived from a cross between Clipper an Australian two rowed cultivar and Sahara3771 Algerian six rowed landrace were evaluated under greenhouse condition and single plant grain yield, 1000 kernel weight, single plant iron concentration and content at grain were measured. To saturate linkage map of the population, 26 retrotransposone markers, IRAP and REMAP markers, 246 SSR and EST-SSR, 238 RFLP and one morphological marker were used and covered 1099.09 cM of barley genome with an average distance of 2.37 cM between two adjacent markers. Transgressive segregation was observed for all traits indicating the presence of desirable parental allele combinations in the progenies. In total, 511 polymorphic markers were mapped in 7 linkage groups. For single plant grain yield, six QTLs were mapped with positive additive effects except one. Three QTLs were identified for seed weight which QTL on 2H with positive additive effect explained 70% of the phenotypic variation. For single plant iron concentration and content at grain six and four QTLs were detected, respectively that five and two QTLs had negative additive effects. QTLs had negative additive effects indicating the role of Sahara3771 alleles in increasing iron accumulation in offspring. Two common genomics regions for the QTLs of some traits were identified which could be due to linkage between the QTLs or their pleiotropic effect. Given the strong linkage markers associated with QTL positioning, these markers can be used in marker-assisted breeding programs.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
2014
321
334
https://cr.guilan.ac.ir/article_1515_d8e3a381d6f27529a8266973e726865a.pdf
Barley seed germination in NaCl + CaCl2 solution, natural saline water and saline soil
Mokhtar
Eskandari
Former M. Sc. Student, Dept. of Soil Science, Faculty of Agriculture, Tarbiat Modares University
author
Mehdi
Homaee
Prof., Dept. of Soil Science, Faculty of Agriculture, Tarbiat Modares University,
author
Safoora
Asadi Kapourchal
Assist. Prof., Dept. of Soil Science, Faculty of Agricultural Sciences, University of Guilan
author
Seyyed Khallagh
Mirnia
Assoc. Prof., Dept. of Soil Science, Faculty of Agriculture, Tarbiat Modares University
author
text
article
2014
per
Barley (Hordeum vulgare) known as a tolerant plant to salinity and has capability to produce reasonable yield under saline conditions. Salinity decreases water uptake by seeds and can lead to delay in germination and seedling establishment. To investigate the effect of salinity on barley germination, three different experiments were carried out in completely randomized design through 13 treatments each with three replications. In these experiments, germination process was studied within three different media including NaCl+CaCl2 solution, natural saline water and natural saline soil. Studied variety was the spring variety, Tropy. The salinity levels in all experiments were consisted of control (0.005), 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 and 27 dS.m-1. The germinated seeds were counted at designated time intervals and continued up to full germination or until the consecutive counting were the same. The number of germinated seeds as well as the germination rates were then calculated and analyzed. The results indicated that by increasing salinity, both percentage and rate of germination decreased. There were further reductions in natural saline water than the NaCl+CaCl2 solution. In higher salinity levels, the germination rate was decreased, while the required time for germination has increased. Seeds were germinated in all salinity treatments within the NaCl+CaCl2 solution. But in the soil medium, germination was successful up to 13 dS.m-1 and the germinated seed numbers were rapidly reduced such that in 23 dS.m-1 treatment no seed was germinated. This observation can be attributed to the fact that in the saline soil medium, the matric potential is also reducing the seed water uptake.
Cereal Research
University of Guilan
2252-0163
3
v.
4
no.
2014
335
347
https://cr.guilan.ac.ir/article_1516_cf533f1d090518bcf818d6c0358be420.pdf