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Effects of reduced plant height on breeding requirements and ...

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l,upt<strong>on</strong> et 41. (7974) pointed out this could be an indicati<strong>on</strong><br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> limited root development.<br />

Vfork in India reported. by Subbiah et a1. (1968) indic-<br />

ated that some <str<strong>on</strong>g>of</str<strong>on</strong>g> the short wheats had more extensive root<br />

systens than did the st<strong>and</strong>ard <str<strong>on</strong>g>height</str<strong>on</strong>g> genotypes, where others<br />

had poorer root systems. However, in very extensive studies<br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> the root systems <str<strong>on</strong>g>of</str<strong>on</strong>g> wheat, Lupt<strong>on</strong> et al. (19?4) ana<br />

0'3rien (L975), both working with Norin-10 deríved serni-<br />

dwarf genotypes, reported no evidence <str<strong>on</strong>g>of</str<strong>on</strong>g> differences in the<br />

síze or extent <str<strong>on</strong>g>of</str<strong>on</strong>g> the root systerûs <str<strong>on</strong>g>of</str<strong>on</strong>g> semi-dwarf <strong>and</strong> normal<br />

heíght genotype s.<br />

39

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