Association studies for agro-physiological and quality traits of triticale x bread wheat derivatives in relation to drought and cold stress.

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dc.contributor.authorGupta, Dorinen_US
dc.contributor.authorMittal, R Ken_US
dc.contributor.authorKant, Anilen_US
dc.contributor.authorSingh, Moharen_US
dc.date.accessioned2007-04-06en_US
dc.date.accessioned2009-06-02T04:03:58Z
dc.date.available2007-04-06en_US
dc.date.available2009-06-02T04:03:58Z
dc.date.issued2007-04-06en_US
dc.description.abstractCorrelation coefficient analysis conducted on 22 triticale x bread wheat derivatives along with six checks to select true- breeding derivative(s) for future hybridization programme with tolerance to drought and cold stress conditions as well as better quality traits revealed significant correlation of grain yield with spikelets per spike, biological yield, harvest index, leaf area index. Interestingly, the grain yield and drought susceptibility index showed no association. However, with cold tolerance it showed significant positive correlation indicating the desirability of certain plant traits under cold stress. The grain yield exhibited no association with quality traits which might assist in the predictability of high yielding varieties with high protein, total sugars, reducing sugars and non-reducing sugars. Path coefficient analysis revealed that biological yield had the highest positive direct effect on grain yield followed by harvest index, specific leaf weight, stomatal number, 1000 grain weight, stomatal size, spikelets per spike and days to heading. Therefore, indirect selection for these plant traits in order should be exercised in selecting drought tolerant genotypes. Two genotypes (RL-124-2P2 and RL 111P2) were found to be drought and cold tolerant with high grain yield, spikes per plant, spikelets per spike and leaf area index.en_US
dc.description.affiliationDepartment of Plant Breeding and Genetics, Advanced Centre for Hill Bioresources and Biotechnology, CSKHPKV, Palampur 176 0 62, India. dorin_gupta@yahoo.comen_US
dc.identifier.citationGupta D, Mittal RK, Kant A, Singh M. Association studies for agro-physiological and quality traits of triticale x bread wheat derivatives in relation to drought and cold stress. Journal of Environmental Biology. 2007 Apr; 28(2): 265-9en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/113508
dc.language.isoengen_US
dc.source.urihttps://www.geocities.com/j_environ_biol/en_US
dc.subject.meshAdaptation, Biologicalen_US
dc.subject.meshBreaden_US
dc.subject.meshCarbohydrate Metabolismen_US
dc.subject.meshCold Temperatureen_US
dc.subject.meshDisastersen_US
dc.subject.meshGenotypeen_US
dc.subject.meshPlant Leaves --anatomy & histologyen_US
dc.subject.meshPlant Stomata --anatomy & histologyen_US
dc.subject.meshTriticum --anatomy & histologyen_US
dc.titleAssociation studies for agro-physiological and quality traits of triticale x bread wheat derivatives in relation to drought and cold stress.en_US
dc.typeJournal Articleen_US
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