The Effects of X-Rays on Growth and Respiration of Wheat Seedlings

Francis, D. S.

doi:10.2307/2480950

Cited by 11 publications

(3 citation statements)

References 18 publications

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“…The results of the experiments demonstraled clearly that respiration was markedly impaired hy neutron radiations, as had been the case when harley seeds were exposed to X-rays (Mikaeisen and Ilalvorsen 1953). It has been fotuid that X-rays have a similar effect on wheat.seedlings (Francis, 1934).…”

Section: Discussionmentioning

confidence: 99%

Experiments on the Effects of Neutron‐irradiation on the Respiration of Barley Seeds I. Effects on Growth and Oxygen‐uptake in Barley Seedlings of Different Varieties

Mikaelsen

Bjørnseth

Halvorsen

1956

Physiologia Plantarum

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Section: Discussionmentioning

confidence: 99%

Experiments on the Effects of Neutron‐irradiation on the Respiration of Barley Seeds I. Effects on Growth and Oxygen‐uptake in Barley Seedlings of Different Varieties

Mikaelsen

Bjørnseth

Halvorsen

1956

Physiologia Plantarum

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“…FRANCIS (5) reported that doses increasing from 3390 to 13,000 r fail to produce any increase in damage to the seedlings either in affecting the growth or in reducing the rate of respiration. Many workers have tried in vain to find a dose of x-rays strong enough to kill the plant immediately.…”

Section: Discussionmentioning

confidence: 99%

EFFECTS OF X-RAYS ON ZEA MAYS

Russell

1937

Plant Physiol.

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“…Twentyfour-hour-old wheat seedlings were irradiated with doses of x-rays varying from 565 to 13,560 r-units by FRANCIS (1). Retardation of fresh weight and dry weight production by the growing parts of the seedlings and retardation of linear growth of the coleoptile, the leaf, the primary root, and the lateral roots was obtained with all doses and time intervals employed.…”

Section: Introductionmentioning

confidence: 99%

X-Ray Effects on the Growth and Reproduction of Wheat

Wort¹

1941

Plant Physiol.

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IntroductionEvidences of miiodification and injury to plant parts are numerous in the extensive literature on the effects of x-ray treatment of plants. lists the effects produced on seventy species of flowering plants. Her work with wheat (3) shows that growing material is more strongly affected than non-growing by equal doses of radiation given in the same way. Seedlings from soaked grains given treatments of 1000 r-units and 5000 r-units made less growth in all respects than did controls, but showed inereased tillering. No flowering data were included.SHULL and MITCHELL (4) obtained deleterious effects when unfiltered radiations were used but the use of metallic screens, high voltage, low amperage, and brief exposures giving approximately 100 r-units, resulted in stimulative action on wheat, corn, oats, and sunflower seedlings. Twentyfour-hour-old wheat seedlings were irradiated with doses of x-rays varying from 565 to 13,560 r-units by FRANCIS (1). Retardation of fresh weight and dry weight production by the growing parts of the seedlings and retardation of linear growth of the coleoptile, the leaf, the primary root, and the lateral roots was obtained with all doses and time intervals employed. Respiration was likewise depressed with the exception of those seedlings which had received the smallest dose of radiation (565 r-units) and which were tested 5 or 6 hours after irradiation.The procedure of SHULL and MITCHELL was closely followed in an attempt to obtain further data on the stimulative effects of filtered x-radiation on growth, height, tillering, heading and flowering, green and dry weights, and moisture content of Marquis spring wheat. An attempt to determine the influence of age of seed on response to irradiation was made by the use of two samples of seed; one 57 months old (4 years, 9 months), the other 9 months old. A preliminary trial was made with Fulhio winter

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The Effects of X-Rays on Growth and Respiration of Wheat Seedlings

Cited by 11 publications

References 18 publications

Experiments on the Effects of Neutron‐irradiation on the Respiration of Barley Seeds I. Effects on Growth and Oxygen‐uptake in Barley Seedlings of Different Varieties

Experiments on the Effects of Neutron‐irradiation on the Respiration of Barley Seeds I. Effects on Growth and Oxygen‐uptake in Barley Seedlings of Different Varieties

EFFECTS OF X-RAYS ON ZEA MAYS

X-Ray Effects on the Growth and Reproduction of Wheat

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