Do dicotyledons generate greater maximum axial root growth pressures than monocotyledons?

被引：38

作者：

Clark, LJ

Barraclough, PB

机构：

[1] IARC Rothamsted, Dept Biochem & Physiol, Harpenden AL5 2JQ, Herts, England

[2] IARC Rothamsted, Crop & Dis Management Dept, Harpenden AL5 2JQ, Herts, England

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 1999年 / 50卷 / 336期

关键词：

dicotyledons; maximum axial root growth pressure; mechanical impedance; monocotyledons; shear beam apparatus;

D O I：

10.1093/jexbot/50.336.1263

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Roots of dicotyledons (dicots) have often been observed to grow better in strong soil than monocotyledons; (monocots), and it has been suggested that this could be due to the dicots generating greater root growth pressures. Experiments were therefore carried out to measure the maximum axial root growth pressure (sigma(max)) in seedlings of monocots and dicots, Dicots did not generate greater sigma(max) than monocots: the mean for dicots was 0.41 MPa; the mean for monocots was 0.44 MPa.

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页码：1263 / 1266

页数：4

相关论文

共 10 条

[1] PHYSIOLOGICAL-RESPONSES OF LUPIN ROOTS TO SOIL COMPACTION [J].

ATWELL, BJ .

PLANT AND SOIL, 1988, 111 (02) :277-281

[2] EFFECTS OF A COMPACTED SUBSOIL LAYER ON ROOT AND SHOOT GROWTH, WATER-USE AND NUTRIENT-UPTAKE OF WINTER-WHEAT [J].

BARRACLOUGH, PB ;

WEIR, AH .

JOURNAL OF AGRICULTURAL SCIENCE, 1988, 110 :207-216

[3] Complete mechanical impedance increases the turgor of cells in the apex of pea roots [J].

Clark, LJ ;

Whalley, WR ;

Dexter, AR ;

Barraclough, PB ;

Leigh, RA .

PLANT CELL AND ENVIRONMENT, 1996, 19 (09) :1099-1102

[4] INFLUENCE OF ROOT DIAMETER ON THE PENETRATION OF SEMINAL ROOTS INTO A COMPACTED SUBSOIL [J].

MATERECHERA, SA ;

ALSTON, AM ;

KIRBY, JM ;

DEXTER, AR .

PLANT AND SOIL, 1992, 144 (02) :297-303

[5] PENETRATION OF VERY STRONG SOILS BY SEEDLING ROOTS OF DIFFERENT PLANT-SPECIES [J].

MATERECHERA, SA ;

DEXTER, AR ;

ALSTON, AM .

PLANT AND SOIL, 1991, 135 (01) :31-41

[6] MAXIMUM AXIAL AND RADIAL GROWTH PRESSURES OF PLANT-ROOTS [J].

MISRA, RK ;

DEXTER, AR ;

ALSTON, AM .

PLANT AND SOIL, 1986, 95 (03) :315-326

[7] A COMPARISON OF DIFFERENT TILLAGE SEEDING SYSTEMS - THE INTERACTION OF TILLAGE AND TIME OF SOWING ON SANDPLAIN SOILS IN WESTERN-AUSTRALIA [J].

SCHMIDT, CP ;

BELFORD, RK .

AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE, 1993, 33 (07) :895-900

[8]

WADE LJ, 1996, P ACIAR, V70, P243

[9] THE TEMPERATURE-DEPENDENCE OF THE MAXIMUM AXIAL GROWTH PRESSURE OF ROOTS OF PEA (PISUM-SATIVUM L) [J].

WHALLEY, WR ;

CLARK, LJ ;

DEXTER, AR .

PLANT AND SOIL, 1994, 163 (02) :211-215

[10] THE MAXIMUM AXIAL GROWTH PRESSURE OF ROOTS OF SPRING AND AUTUMN CULTIVARS OF LUPIN [J].

WHALLEY, WR ;

DEXTER, AR .

PLANT AND SOIL, 1993, 157 (02) :313-318