与 «GEOTROPISM»相关的英语书籍
在以下的参考文献中发现
geotropism的用法。与
geotropism相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Janice VanCleave's Super Science Challenges: Hands-On ...
BIOLOGY Determine the Rate of Geotropism of Plant Stems Determine the Rate
of Geotropism of Plant Stems What You Need to Know CHALLENGE19 How
Does Geotropism Work? What Does This Have to Do with the Rate of Geotropism
?
2
100 Amazing Make-It-Yourself Science Fair Projects
To find what they need, plants mysteriously know in which direction to grow. This
type of growth pattern is called a tropism. The following project demonstrates the
three basic kinds of plant tropisms — hydrotropism, towards water; geotropism, ...
This is a plant's normal response to gravity, and it is called geotropism (or
gravitropism). In general, shoots grow away from gravity and are described as
negatively geotropic. Roots tend to grow towards gravity and are therefore
positively ...
Michael Roberts, Michael Jonathan Reiss, Grace Monger, 2000
4
Experiments with Plants
Figure 24-4 An example of geotropism — roots grow down and shoots grow up
Figure 14-5 Why is the plant turning toward the light? Plant Tropisms Have you
ever wondered how seedlings "know" which way to grow? Why do their roots go
...
5
Biology: A Modern Introduction
11.4 Practical uses for plant hormones Fig. n.8 Experiment to demonstrate
geotropism in root and shoot 1 Bean seedling placed in a horizontal position in
the dark, with markings at 1 mm intervals 2 The shoot develops an upward (
negatively ...
6
Plant Hormones and Plant Development
Geotropism of coleoptiles, the polar regeneration of roots on cuttings, apical
dominance, and -much later- the polar differentiation of vascular cells were all
shown to involve auxin. And after the commercially available indole-3-acetic acid
(IAA) ...
William Paul Jacobs, 1979
7
Design in Nature: Learning from Trees
This mechanism is called geotropism. Geotropism: Stand Up Straight!
Geotropism, or more accurately negative geotropism, gives the side branches
and also the trunk the command: grow erect against gravity. Now, if the leading
shoot dies, the ...
Growth with respect to gravity is geotropism; growth with respect to light is
phototropism. One theory to explain these tropisms, the Cholodny-Went theory,
suggests that both are controlled by auxins, of which indole-3-acetic acid (IAA) is
the ...
9
Essential Science for GCSE
This is called negative geotropism. The roots will still grow down towards gravity.
This is called positive geotropism. It is an advantage for shoots to grow away from
gravity. The leaves and stems are lifted above the ground. Roots need to grow ...
Susanne Lakin, John Patefield, 1998
10
Movement Disorders: Genetics and Models
Care must be taken that the subjects tested do not have problems with their
locomotor ability since it has been noted that locomotion and geotropism are
closely related. V. GEOTROPISM Adult Drosophila collected from wild
populations as ...
包含词语«GEOTROPISM»的新条目
找出国内和国际出版社所讨论的内容，以及词语
geotropism在以下新条目的上下文中是如何使用的。
Crop response to day length and its role in fertilizer applications
Geotropism: Response to gravity - roots grow down and shoots grow up. Phototropism: Response to light – plants grow (bend) toward light. «Greenhouse Management, 四月 15»
Hydrotropism: Lessons from Ficus Elastica
Hydrotropism begins with the perception of soil moisture gradients and unlike geotropism, it is not yet fully known how or which cell type on the ... «World Policy Institute, 四月 15»
San Jose: 'Day of Science' revs up students
Not that geotropism, or gravity sense, was on the tip of students' tongues; many couldn't even remember the type of seed they had and what ... «San Jose Mercury News, 二月 15»
ARISS ham radio contact with Richmond Heights Middle School …
6. Without gravity, how do plants, such as Arabidopsis, determine orientation germination? Geotropism what do roots do? Do plants on the ISS ... «Southgate Amateur Radio Club, 一月 15»
Irritability In Plants: Phototropism And Geotropism
Most plants, except the primitive ones, are fixed to the soil by a root system and therefore cannot move about like animals. We have mentioned ... «Nigerian Observer, 五月 14»
What makes plants tick: Figuring out how to thrive
While root tropisms are complex, geotropism, also called gravitropism, is the effect of gravity. Shoots grow away from gravity and roots toward it. «Charleston Post Courier, 五月 14»
Putnam County Science Fair winners
... Anthony's for “How Do Seeds Know Which Way to Grow” and Tyson Niese of Miller City-New Cleveland for “Phototropism and Geotropism”. «Putnam County Sentinel, 二月 14»
This Day in Blogging History: Daily Mail sucks at Photoshop; Return …
... water flea, constructing a Foucalt pendulum, and experimenting with geotropism. Who knew you could have so much fun at the kitchen table? «Boing Boing, 十二月 13»
To Be or Not to Be Vegan - the Omnivore's Other Dilemma
Plants are very responsive to gravity -- with their growing parts heading upwards and their roots going down (geotropism). If there is water ... «Huffington Post, 十月 13»
Go big! Plant large-sized spring-flowering bulbs for impact
Negative geotropism comes into play, meaning that plant foliage will still grow upward. Let the weather, not the calendar, dictate when you ... «Waterloo Cedar Falls Courier, 九月 13»
