Genetic approach for assessing the environmental hazards of heavy metals on plant growth in cotton [electronic resource].
Language: English Summary language: Arabic Description: p.875-887Other title:- مقارنة وراثية لتعيين الاخطار البيئية للمعادن الثقليه على نمو نباتات القطن [Added title page title]
- Zagazig journal of agricultural research, 2010 v. 37 (4) [electronic resource].
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Main | ART ZJAR V37 No4 4 (Browse shelf(Opens below)) | Available |
Includes references.
This study was a genetically approach to investigate the genetic nature of cotton plants to heavy metals. The effect of cadmium (Cd), lead (Pb) and nickel (Ni) on growth, as measured by dry weight of root and shoot, were studied on a set of cotton parental genotypes and their FI progenies. Cotton genotypes reacted differently with heavy metals stresses. P₂ (Giza 90) showed the lowest reduction effect under Cd and Ni as well as P₅ (pima S₆) for Pb stresses. Estimates of genetic components of variance revealed that the effect of dominance components were much greater than the effect of additive components for all reduction effects under the three heavy metals stresses. Non-additive gene effects had a considerable role in controlling growth responses of cotton to such stresses, which confIrmed by high estimates of broad-sense heritability. The parental genotypes and FI crosses had similar linear response to different heavy metals stresses, as environmental changes.
Summary in Arabic.
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