Root morphology of wheat genotypes differing in zinc efficiency

作者: Bei Dong , Zdenko Rengel , Robin D. Graham

DOI: 10.1080/01904169509365098

关键词: HorticultureMorphology (linguistics)ShootAgronomyZincPoaceaeSoil waterDry matterSowingBiologyCultivar

摘要: Abstract The root morphology (root length, diameter) of the three wheat genotypes (Triticum aestivum L. cvs Excalibur and Gatcher, T. turgidum conv. durum (Desf.) McKay cv Durati) grown in zinc (Zn)‐deficient, sandy soil under controlled conditions has been measured by a scanner coupled to computer. Wheat plants were supplied with 0, 0.025, 0.05, 0.1, 0.2, or 0.4 mg Zn/kg soil. previously identified as Zn‐efficient genotype which can take up more Zn higher yield soils low plant‐available Zn. Durati is Zn‐inefficient Gatcher an intermediate respect efficiency. Root shoot dry matter significantly increased at 0.1 compared 0 level. Zinc content shoots was lower than sufficient supply applications had no significant effect on two weeks after sowing. At that time, however, developed longer thinner ...

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