Salt tolerance potential of wild resources of the tribe Triticeae

Farooq, S.; Niazi, M. L. K.; Iqbal, Nayyer; Shah, Tariq

doi:10.1007/bf02370417

Cited by 36 publications

(18 citation statements)

References 14 publications

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“…The degree of salt resistance depends mainly on the type of a plant; however, even within the same species among different varieties or ecotypes stress resistance can vary significantly. However, some crops due to inherent plasticity can grow on soils with high content of the salt that was shown on certain varieties of wheat (Sairam et al 2002;Wang et al 2003a, b), wild species of wheat (Farooq et al 1989), and other cultures (Francois and Maas 1999).…”

Section: Physiological Responses Of Plants To Drought and Salinity: Smentioning

confidence: 96%

Response of Wheat Seedlings to Combined Effect of Drought and Salinity

Иванов

2015

Stress Responses in Plants

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In field conditions the plants are most commonly subjected to simultaneous effects of multiple stresses. The mechanisms of plant tolerance to salinity and drought are physiologically connected and overlapping, but some aspects of physiology and metabolism may differ when in the experiment salt and water stress is used separately or both stresses are used simultaneously. Physiological and biochemical reactions of the plants under combined effect of the drought and salinity are unique, which cannot be directly extrapolated from respective responses to each of these stresses individually. Drought and salinity reduce individually the availability of water for plants. However, the presence of salt in the soil inhibits the rate of the development of drought, enabling the plant to survive in unfavorable period of short-term drought without violation of basic physiological functions. At increased NaCl concentration in the soil during the combined stress, basic physiological and biochemical functions of the plants remain constant until a critical threshold, after which the plants' productivity decreases dramatically. This article shows the features of the combined stress and its difference from the drought and salinity individually.

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Section: Physiological Responses Of Plants To Drought and Salinity: Smentioning

confidence: 96%

Response of Wheat Seedlings to Combined Effect of Drought and Salinity

Иванов

2015

Stress Responses in Plants

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“…NIAB has identified a range of biodiversity native to saline lands that includes wild plants, land races, grasses (FAROOQ et al 1995) and wild relatives of wheat (FAROOQ et al 1988(FAROOQ et al , 1989. Among them, Aegilops species were preferred for use in wheat improvement programme because Aegilops cylindrica, Ae.…”

Section: Collection Of Germplasmmentioning

confidence: 99%

“…The germplasm was initially screened for salinity tolerance (FAROOQ et al 1988(FAROOQ et al , 1989). The identified tolerance was then transferred to hexaploid wheat cultivars LU-26 and Pak-81 (FAROOQ et al 1992).…”

Section: Development and Testing Of Germplasmmentioning

confidence: 99%

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Production of Low Input and Stress Tolerant Wheat Germplasm through the Use of Biodiversity Residing in the Wild Relatives

Farooq

2004

Hereditas

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Agricultural biodiversity adds value to crop, induces resistance, contributes enormously to human foodstuff, removes fear of genetic uniformity and ensure food security of the world. For these reasons, NIAB initiated a programme on collection, evaluation, and utilisation of agro-biodiversity related with wheat and wheat wild relatives. The focus of the programme was on the addition of stress tolerance from wild species to cultivated wheat. The objectives were i) to have a permanent source of stress tolerant germplasm, ii) to facilitate availability of such germplasm for environment friendly, profitable and sustainable agriculture on stressed lands and iii) to ensure safety of biodiversity (through gene conservation) for the stability of future agriculture. During 1998-2001, we tested wheat lines developed by using biodiversity residing in the Aegilops species. The material was tested in an area that required stress tolerant germplasm. Planting was done in fields where cotton was already growing up to the stage of second picking. The inputs included only half the amount of recommended dose of fertiliser, approximately half of the normal irrigation, no herbicide and two applications of compost. Two of the lines tested in these trials out-yielded all existing wheat cultivars traditionally grown in this area and convinced the farmers that biodiversity does play a role in adding value to the existing material, making it suitable for specific requirement. This paper describes, in detail, the significance of the plant material for the area, practical achievements, acceptance by the farmers and economic feasibility of the stress tolerant material developed at NIAB.

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“…Varying number of accessions of Aegilops species were evaluated against prevalent races of yellow, brown rust and Karnal bunt and identified excellent sources of resistance (Khem et al, 1987). Most of the annual and perennial species have been screened against salinity (Farooq et al, 1988(Farooq et al, , 1989) and the identified species are now being used as donor of stress tolerance genes to cultivated wheat varieties (Farooq et al, 1994(Farooq et al, , 1995. In the present study, some of the results obtained on the screening of annual species against rust resistance are being presented.…”

Section: Introductionmentioning

confidence: 99%