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  • Author or Editor: M. C. Fuqua x
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Abstract

A field survey in 1977 and greenhouse studies revealed that chlorosis and stunting in rose (Rosa hybrida L. cv. Summer Snow) budded on Rosa multiflora Thumb. root-stock was due to Mn and A1 toxicity on soils with pH 5.0 or below. Liming reduced Mn and A1 tissue concentrations, promoted root growth, and alleviated chlorosis.

Open Access

Abstract

The lower 15 cm (4 nodes) of vine tip cuttings of sweet potato (Ipomoea batatas (L.) Lam. cv Jewel) were planted in blasting sand and immersed in a full strength Hoagland’s nutrient solution to a height of either 5 or 15 cm. More roots were initiated at the two lower nodes and roots were more numerous and larger by 6-12 weeks in the 5 cm immersion level while at the 15 cm level more roots originated at the upper nodes. Endogenous ethylene (C2H4) increased in the stems of plants immersed to a height of 15 cm.

Open Access

Abstract

The ‘Cordner’ sweet potato [Ipomoea batatas (L.) Lam.], developed jointly by the Texas Agricultural Experiment Station and Oklahoma State Univ., combines high yield, good sprout production, and excellent baking and canning quality.

Open Access