Comparison of water relations and drought related flag leaf traits in hexaploid spring wheat (Triticum aestivum L.)

Bhutta, Waqas Manzoor; Ibrahim, Muhammad; Tahira,

doi:10.17221/3434-pse

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…Numerous available studies in sunflower show significant genetic variability and positive correlation between the yield of drought stress and osmotic adjustment (Chimenti et al 2002, Rauf andSadaqat 2008a, b), but none of them reports on the type of genetic variability associated with this trait in sunflower. However, the type of genetic variability for leaf hydraulics was previously estimated in other crops (Dhandha and Sethi 1998, Rebetzke et al 2003, Bhutta et al 2006. Dhandha and Sethi (1998) observed additive type of gene action in wheat for leaf trait such as relative water contents.…”

Section: Correlationsmentioning

confidence: 95%

Genetic analysis of leaf hydraulics in sunflower (Helianthus annuus L.) under drought stress

Rauf¹,

Sadaqat²,

Khan³

et al. 2009

PLANT SOIL ENVIRON

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Improvement in leaf hydraulics is directly related to the improvement of plant tolerance to drought stress. Therefore, a field and pot experiment was carried out to determine the type of genetic variability and selection of parental types on the basis of combining ability for leaf hydraulics. Genotypes showed similar performance in both experiments; higher values were shown by drought tolerant genotypes in all traits except for osmotic potential, which drought tolerant genotypes maintained lower. Osmotic adjustment in pot experiment showed the highest magnitude of additive type of genetic variability. Female showed a higher and significant contribution of general combining ability effects as compared to male; it suggests that within genotypes female rather than male mostly contribute for additive genes. AMES-10103 showed the highest general combining ability effects for traits such as turgor pressure and osmotic adjustment.

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Section: Correlationsmentioning

confidence: 95%

Genetic analysis of leaf hydraulics in sunflower (Helianthus annuus L.) under drought stress

Rauf¹,

Sadaqat²,

Khan³

et al. 2009

PLANT SOIL ENVIRON

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“…The traits such as plant height, CAT, RWC, 100-grain weight, and POD had heritability calculated ranging from under control environment 28Á45% as well as under saline conditions 19Á31%, indicating that these characters are moderately heritable and that selection for these would have to be done several times over many generation of inbreeding to accumulate the desired gene (Table III). The chance that that would be done on estimation of heritability for yield traits increases with recurrent selections (Bhutta et al, 2005). Heterosis represents the dominance and epistatic interaction.…”

Section: Resultsmentioning

confidence: 99%

Genetic variability and heritability of physiology traits in wheat (Triticum aestivumL.) under saline environments

Bhutta

Tahira²

2010

Acta Agriculturae Scandinavica, Section B - Soil & Plant Sc

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The present investigation was undertaken to calculate the genetic variability and heritability of desirable physiological traits of wheat (Triticum aestivum L.). Forty-two F 1 populations of Triticum aestivum L. were planted in the field and studied for variation and heritability. The variance calculated pointed out that phenotypic traits were significant (P B0.01) for such physiology traits as plant height, superoxide dismutase, catalase, peroxidase, relative water content, membrane stability index, and K ' /Na ' ratio. Partitioning of the variance component estimated that the environment had its main impact on the performance of traits like plant height, catalase, and relative water content, while superoxide dismutase, peroxidase, membrane stability index, and K ' /Na ' ratio were genetically influenced. Considering the wide variability and high heritability calculated, progress could be expected from selection based on catalase, membrane stability index, and K ' /Na ' ratio.

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“…Daun dari varietas tahan kering umumnya lebih kecil dan memiliki rasio luas permukaan dan volume yang lebih rendah dibandingkan jenis yang telah beradaptasi pada kondisi kelembaban yang memadai, selain itu luas area daun yang lebih rendah merupakan alat untuk menjaga kelembaban dengan pengurangan transpirasi (Bhutta et al, 2006).…”

Section: B Pembahasanunclassified

DROUGHT RESPONSES ON GROWTH, PROLINE CONTENT AND ROOT ANATOMY OF Acacia auriculiformis Cunn., Tectona grandis L., Alstonia spectabilis Br., AND Cedrela odorata L.

Hendrati¹,

Rachmawati²,

Pamuji³

2016

JPKW

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ABSTRAKPemanasan global yang terjadi beberapa tahun terakhir telah menyebabkan terjadinya cuaca ekstrim dan peningkatan suhu bumi yang juga menyebabkan kekeringan. Dalam upaya mengantisipasi pemanasan global diperlukan adanya lingkungan yang dapat menyerap emisi karbon, salah satunya adalah hutan. Salah satu upaya untuk mempertahankan keberadaan hutan, perlu dilakukan identifikasi spesies yang adaptif terhadap kondisi kekeringan. Penelitian ini bertujuan untuk mengetahui pertumbuhan tanaman dan anatomi akar Acacia auriculiformis Cunn., Tectona grandis L., Alstonia spectabilis Br. dan Cedrela odorata L. serta membandingkan spesies yang lebih adaptif terhadap kondisi kekeringan. Penelitian pada uji terkontrol ini, menggunakan perlakuan kekeringan selama 10, 20, 30 dan 40 hari serta tanaman kontrol yang disiram setiap 2 hari sekali. Masing-masing perlakuan dilakukan dengan 3 ulangan. Pertumbuhan tanaman yang diamati adalah tinggi, diameter, jumlah dan luas daun tanaman, kadar prolin akar serta aspek anatomis berupa diameter trakea. Pengamatan dan pengambilan sample dilakukan setiap 10 hari sekali. Data pertumbuhan dan prolin yang diperoleh dianalisis dengan uji T dan data anatomi dianalisis menggunakan ANOVA dilanjutkan uji Duncan dengan taraf signifikansi 95%. Kekeringan pada A. auriculiformis Cunn., T. grandis L., A. spectabilis Br. dan C. odorata L. mempengaruhi pertumbuhan tanaman berupa penurunan tinggi, diameter dan jumlah daun, namun terjadi peningkatan kadar prolin akar dan pertambahan diameter trakea akar. Hasil studi ini mengindikasikan bahwa spesies yang paling toleran dan kemungkinan adaptif terhadap kekeringan adalah spesies yang mempunyai lebih banyak variasi mekanisme respon terutama yang kemunculannya baru terlihat pada tekanan kekeringan yang tinggi.Kata kunci: Kekeringan, jenis pohon, pertumbuhan, prolin, anatomi ABSTRACT Global warming causes extreme weather and temperature leading to drought. Identification of drought adaptive species is essential. This research is aimed to examine growth, proline content and root anatomy of

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Comparison of water relations and drought related flag leaf traits in hexaploid spring wheat (Triticum aestivum L.)

Cited by 10 publications

References 18 publications

Genetic analysis of leaf hydraulics in sunflower (Helianthus annuus L.) under drought stress

Genetic analysis of leaf hydraulics in sunflower (Helianthus annuus L.) under drought stress

Genetic variability and heritability of physiology traits in wheat (Triticum aestivumL.) under saline environments

DROUGHT RESPONSES ON GROWTH, PROLINE CONTENT AND ROOT ANATOMY OF Acacia auriculiformis Cunn., Tectona grandis L., Alstonia spectabilis Br., AND Cedrela odorata L.

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