Genetics and heritability of some physiological and agronomic traits in barley under drought stress

Document Type : Research Paper


Department of Agronomy and Plant Breeding, Ardabil Branch, Islamic Azad University, Ardabil, Iran.


To evaluate the inheritance of some physiological and agronomic traits in barley, the F1 seeds of a 5×5 half diallel cross, along with their parents were grown in well-watered and drought stress under greenhouse condition at the agricultural research station of Islamic Azad University, Ardabil, Iran in 2016. Physiological and agronomic traits such as relative water content, excised leaf water loss, stomatal conductance, cell membrane injury, chlorophyll fluorescence parameters, specific leaf area, leaf thickness, root length, root dry weight and grain yield were measured. Results showed that all traits had high broad sense heritability. Among the traits, cell membrane injury had the highest narrow sense heritability (0.47), followed by specific leaf area (0.369), excised leaf water loss (0.353) and relative water content (0.311). The average degree of dominance was higher than unity for all traits, indicating the presence of over-dominance gene action in the control of these traits. Results showed that for grain yield and specific leaf area, dominant alleles, and for cell membrane injury, recessive alleles are favorable. F1 progenies had lower specific leaf area, excised leaf water loss, relative water content, stomatal conductance and higher root dry weight than their parents. Due to the importance of dominance in the control of characters under study, it was suggested that the evaluation of traits under study should be done at advanced generations of inbreeding.


Article Title [فارسی]

ژنتیک و وراثت پذیری برخی از صفات فیزیولوزیک در جو تحت تنش خشکی

Authors [فارسی]

  • حسین شهبازی
  • حسن بیگناه
  • مسلم علائی
Abstract [فارسی]

به منظور تعیین وراثت‌پذیری برخی از صفات فیزیولوژیک درگیاه جو، بذرهای F1 حاصل از یک تلاقی دی الل 5×5 به همراه والدین درگلخانه در شرایط بدون تنش و تنش خشکی انتهایی، در ایستگاه تحقیقات کشاورزی دانشگاه آزاد اسلامی واحد اردبیل در سال 1395 کشت گردیدند. صفات فیزیولوژیک و زراعی محتوی نسبی آب برگ، اتلاف آب از برگ جداشده، هدایت روزنه‌ای، صدمه وارده به غشا، پارامترهای فلورسانس کلروفیل، سطح ویژه برگ، ضخامت برگ، طول ریشه، وزن خشک ریشه و عملکرد دانه اندازه گیری شدند. نتایج نشان داد ‌که وراثت پذیری عمومی تمام صفات بالا بود. در بین صفات اندازه گیری شده، صدمه وارده به غشای سیتوپلاسمی دارای بیشترین وراثت پذیری خصوصی بود (47/0) و سطح ویژه برگ، اتلاف آب از برگ جداشده و محتوی نسبی آب برگ بترتیب با مقادیر 369/0، 353/0 و  311/0 در رتبه­های بعدی قرار گرفتند. درجه غالبیت متوسط در مورد تمام صفات اندازه‌گیری شده بزرگتر از 1 بود که حاکی از کنترل کلیه صفت توسط اثر فوق غالبیت ژنی بود. نتایج نشان داد که در عملکرد و سطح ویژه برگ الل­های غالب و در صدمه وارده به غشای سیتوپلاسمی الل­های مغلوب، مطلوب می­باشند. نتایج همچنین نشان داد که نتاج F1 در مقایسه با والدین دارای سطح ویژه برگ، اتلاف آب از برگ جدا شده، محتوی نسبی آب برگ و هدایت روزنه­ای کمتر و وزن خشک ریشه بیشتری هستند. با توجه به اهمیت بیشتر ارزش­های غالبیت در کنترل صفات اندازه­گیری شده، پیشنهاد می­شود که ارزیابی صفات در نسل­های تفرق پیشرفته و بعد از رسیدن نتاج به خلوص نسبی انجام گیرد.

Keywords [فارسی]

  • تنش خشکی
  • صفات ریشه
  • صفات فیزیولوژیک
  • هدایت روزنه­ای
  • وراثت پذیری
Baker RJ, 1978. Issues in diallel analysis. Crop Science75: 533-536.
Blum A, 2011.  Plant Breeding for Water Limited Environments.Springer, New York.
Blum A and Ebercon A, 1981. Cell membrane stability as a mea­sure of drought and heat tolerance in wheat. Crop Science 21: 43-47.
Boyer JS, James RA, Munns R, Condon AG and Passioura JB, 2008. Osmotic adjustment may lead to anomalously low estimates of relative water content in wheat and barley. Functional Plant Biology 35: 1172-1182.
Čepl JHolá DStejskal JKorecký JKočová MLhotáková ZTomášková IPalovská MRothová OWhetten RWKaňák JAlbrechtová J and Lstibůrek M. 2016. Genetic variability and heritability of chlorophyll a fluorescence parameters in Scots pine (Pinus sylvestris L.). Tree Physiology 36(7): 883-95.
Chandra D and Islam MA, 2003. Genetic variation and heritability of excised-leaf water loss and its relationship with yield and yield components of F5 bulks in five wheat cosses. Journal of Biological Sciences 3(11): 1032-1039.
Craine JM, Wedin DA, Chapin FS and Reich PB, 2002. Relationship between the structure of root systems and resource use for 11 North American grassland plants. Plant Ecology 165: 85-100.
David M, 2010. Water loss from excised leaves in a collection of Triticum aestivum and Triticum durum cultivars.  Romanian Agricultural Research 27(4): 27-34.
Ebadi-Segherloo A, Mohammadi SA, Sadeghzadeh B and Kamrani M, 2016. Study of heritability and genetic advance of agronomic traits in barley (Hordeum vulgare L.) and graphic analysis of trait relations by biplot. Jordan Journal of Agricultural Sciences 12(1): 299-310.
Golparvar AR, Beheshtizadeh H and Salehi S, 2013. Gene action and inheritance of relative water content and grain filling rate in bread wheat (Triticum aestivum L.). Technical Journal of Engineering and Applied Sciences 3(23): 3291-3294.
Griffing B, 1956. Concept of general and specific combining ability in relation to diallel crossing systems. Australian Journal of Biological Science 9: 463-493.
Hayman BI, 1954. The theory and analysis of diallel crosses. Genetics 39: 789-809.
Jalata Z, Ayana A and Zeleke H, 2011. Variability, heritability and genetic advance for some yield and yield related traits in Ethiopian barley (Hordeum vulgare L.) landraces and crosses. International Journal of Plant Breeding and Genetics 5: 44–52.
Jatoi, WA, Baloch MJ, Kumbhar MB and Keerio MI, 2012.  Heritability and correlation studies of morpho-physiological traits for drought tolerance in spring wheat. Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences 28(2): 100-114.  
Jiang Q, Roche D, Monaco TA and Hole D, 2006. Stomatal conductance is a key parameter to assess limitations to photosynthesis and growth potential in barley genotypes. Plant Biology 8: 515-521.
Marcial L and  Sarrafi A, 1996. Genetic analysis of some chlorophyll fluorescence and productivity parameters in barley (Hordeum vulgare) Plant Breeding 115(5): 339-342.
Mather K and Jinks JL, 1971. Biometrical Genetics. Chapman & Hall, London.
Mohammadi M, Ceccarelli S and Naghavi MR. 2006. Variability and genetic parameters for related traits to drought tolerance in doubled haploid population of barley (Hordeum vulgare). International Journal of Agriculture and Biology 5: 694-697.
Painawadee M,  Jogloy S,  Kesmala T,  Akkasaeng C and  Patanothai A, 2009. Heritability and correlation of drought resistance traits and agronomic traits in peanut (Arachis hypogaea L.). Asian Journal of Plant Sciences 8(5): 325-334.
Rebetzke GJ, Botwright TL, Moore CS, Richards RA and Condon AG, 2004. Genotypic variation in specific leaf area for genetic improvement of early vigour in wheat.  Field Crops Research 88(2): 179-189.
Rebetzke GJ, Condon AG, Richards RA and Farquhar GD, 2003. Gene action for leaf conductance in three wheat crosses. Australian Journal of Agricultural Research 54: 381-87.
Sayar R, Khemira H, Kameli A and Mosbahi M, 2008. Physiological tests as predictive appreciation for drought tolerance in durum wheat. Agronomy Research 6(1): 79-90.
Shahbazi H, AAli E, Imani AA and Zaeefizadeh M, 2013. Inheritance of cell membrane stability under heat and osmotic stresses in bread wheat. SABRAO Journal of Breeding and Genetics 45(2) 187-194.
Shahbazi H, Bihamta MR, Taeb M and Darvish F, 2009. Inheritance of chlorophyll fluorescence parameters and their correlations with terminal drought tolerance in wheat.  Journal of Crop Ecophysiology (Agriculture Science) 3(10): 53-65 (In Persian with English abstract).
Shayan S, Moghaddam Vahed M, Norouzi M, Mohammadi A, Tourchi M and Molaei B, 2018. Inheritance of agronomical and physiological traits in the progeny of Moghan3 and Arg bread wheat varieties cross. Plant Genetic Researches 4(2): 43-60 (In Persian with English abstract).
Singh M and Singh RK, 1984. A comparison of different methods of half-diallel analysis. Theoretical and Applied Genetics 67: 323-326.
Tuberosa R, 2012. Phenotyping for drought tolerance of crops in the genomics era. Frontiers in Physiology 19: 1-26. 
Vile D, Garnier E, Shipley B, Laurent G, Navas ML, Roumet C, Lavorel S, Diaz S, Hodgson JG, Lioret F, Midgley GF, Poorter H, Rutherford MC, Wilson PG and Wright IJ, 2005. Specific leaf area and dry matter content estimate thickness in laminar leaves. Annals of Botany 96: 1129-1136.