GROWTH AND DEVELOPMENT OF AVENA-FATUA (WILD-OAT) IN THE FIELD

被引：19

作者：

COUSENS, R ^{[1
]}

WEAVER, SE ^{[1
]}

PORTER, JR ^{[1
]}

ROONEY, JM ^{[1
]}

BUTLER, DR ^{[1
]}

JOHNSON, MP ^{[1
]}

机构：

[1] UNIV BRISTOL,AFRC,INST ARABLE CROPS RES,DEPT AGR SCI,LONG ASHTON RES STN,BRISTOL BS18 9AF,AVON,ENGLAND

来源：

ANNALS OF APPLIED BIOLOGY | 1992年 / 120卷 / 02期

关键词：

AVENA-FATUA; WILD-OAT; GROWTH; DEVELOPMENT; TEMPERATURE; PHOTOPERIOD; THERMAL TIME;

D O I：

10.1111/j.1744-7348.1992.tb03430.x

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The growth and development of field-grown A vena fatua plants were studied for autumn and spring sowings in two consecutive years. The duration of various growth stages from sowing until anthesis was quantified in terms of thermal time (accumulated degree days) or photothermal time (degree days modified by photoperiod). Base temperatures and photoperiods for developmental phases were estimated as those which minimised the coefficient of variation among sowing dates. Relationships were derived between leaf emergence, canopy height, plant leaf area, and photothermal time. Stem extension and flowering occurred earlier in autumn-sown plants than spring-sown plants. Autumn-sown plants produced more leaves on the main stem, and had greater leaf area and above-ground biomass at anthesis than spring-sown plants.

引用

页码：339 / 351

页数：13

共 23 条

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ADKINS SW, 1987, WEED SCI, V35, P169

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