Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The effect of soil phosphate on injury to winter barley caused by mildew infection (Erysiphe graminis f.sp. hordei).
AU - McAinsh, Martin R.
AU - Ayres, Peter G.
AU - Hetherington, A. M.
PY - 1990/4
Y1 - 1990/4
N2 - Populations of winter barley were sown in autumn in large tubs of soil to half of which additional phosphate was supplied. Half the plants of each phosphate treatment were infected with powdery mildew (Erysiphe graminis D.C. f. sp. hordei Marchal) and all plants were transferred to the-field. Infection induced extensive leaf injury during mid-winter in plants at low phosphate, but injury was greatly reduced in the high soil phosphate treatment. The extent of winter injury had a marked effect on the increase in leaf area in spring, and the accumulation of plant d. wt was positively correlated with the percentage of total leaf area remaining undamaged at the end of winter. This, in turn, was strongly influenced by the interaction between powdery mildew and soil phosphate. High soil phosphate may act as a ‘buffer’ to the effects of infection, minimizing the combined effects of infection and abiotic stresses suffered by plants in winter.
AB - Populations of winter barley were sown in autumn in large tubs of soil to half of which additional phosphate was supplied. Half the plants of each phosphate treatment were infected with powdery mildew (Erysiphe graminis D.C. f. sp. hordei Marchal) and all plants were transferred to the-field. Infection induced extensive leaf injury during mid-winter in plants at low phosphate, but injury was greatly reduced in the high soil phosphate treatment. The extent of winter injury had a marked effect on the increase in leaf area in spring, and the accumulation of plant d. wt was positively correlated with the percentage of total leaf area remaining undamaged at the end of winter. This, in turn, was strongly influenced by the interaction between powdery mildew and soil phosphate. High soil phosphate may act as a ‘buffer’ to the effects of infection, minimizing the combined effects of infection and abiotic stresses suffered by plants in winter.
KW - Barley
KW - powdery mildew (Erysiphe graminis hordei)
KW - overwinter
KW - phosphate
KW - temperature
M3 - Journal article
VL - 65
SP - 417
EP - 423
JO - Annals of Botany
JF - Annals of Botany
SN - 1095-8290
IS - 4
ER -