The influence of open-top chambers on the growth and development of field bean.
The influence of open-top chambers on the growth and development of field bean.
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开顶室对菜豆生长发育的影响
DOI：
10.1111/j.1469-8137.1991.tb00008.x
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发表时间：
1991
期刊：
影响因子：
9.4
通讯作者：
J. Colls
中科院分区：
文献类型：
--
作者：
G. Sanders;A. G. Clark;J. Colls
1988年，采用基于罗利（USA）设计的开顶箱（OTCs）研究了环境污染物对大田种植的蚕豆（Vicia faba cv，Ticol.）本文报道了该研究的一个方面，其中室本身对作物生长发育的影响进行了研究。与开阔地子区（AA处理）相比，非过滤室（NF OTC）的小气候通常高0.8°C，辐射减少20%，风速降低。这些差异足以诱导蚕豆生长和发育的改变。植物发育进展更快的室内响应更快的积累的热时间。室内生长的蚕豆比AA处理中生长的植物高20 cm，分枝较少（0.7个，而每株植物为1.2个）。NF植株的叶面积较大，单位叶面积气孔数较少（34个对42 mm-2，P= 0.01）。OTC内的封闭并没有改变每株植物的花数或形成豆荚的花数。然而，在收获时，室内种植的植物比露地种植的植物产量高13%。AA和NF处理之间的小气候差异，这些差异的增长。
In 1988, open-top chambers (OTCs) based on the Raleigh (USA) design were used to investigate the effect of ambient pollutants on field-sown Vicia faba cv, Ticol. This paper reports an aspect of this study in which the effect of the chamber itself on crop growth and development was investigated. Non-filtered chamber (NF OTC) microclimates were typically 0.8°C warmer, with 20% less radiation and reduced wind speeds compared with open-field sub-plots (AA treatments). These differences are sufficient to induce alterations in the growth and development of V. faba. Plant development progressed more quickly inside the chambers in response to the faster accumulation of thermal time. Chamber-grown V. faba were up to 20 cm taller and had fewer branches (0.7 compared with 1.2 per plant) than plants grown in the AA treatments. Larger leaf areas developed on the NF plants, and there were fewer stomata per unit leaf area in this treatment (34 compared with 42 mm-2 , P= 0.01). Enclosure within an OTC did not alter the number of flowers per plant or the number of flowers which formed pods. However, at harvest, chamber-grown plants had a 13% higher yield than the plants grown in open-field plots. These differences in growth are described in relation to the microclimate differences between AA and NF treatments.