GERMINATION, GROWTH, AND RESPIRATION OF RICE AND BARLEY SEEDLINGS AT LOW OXYGEN PRESSURES

GERMINATION, GROWTH, AND RESPIRATION OF RICE AND BARLEY SEEDLINGS AT LOW OXYGEN PRESSURES FIGURES) An extreme sensitivity to oxygen deficieney is demonstrated by barley seeds undergoing germination. The preseniee of a film of water above the seeds, for example, inhibits their germination and rapidly leads to fermentation of a pronounced character with a rapid disintegration of the tissues. This mortalitv may be partly reduced by forcing a stream of air through the water. On the other hand, it is a commoni agricultural practice to germinate rice seeds in standin(g water 1 to several centimeters in depth. This behavior of rice has been observed on several occasions but with one recent exception, no attempt has been made to establish the oxvgen relations of germinating rice on a quantitative basis. In an exhaustive review of the literature oni oxygen relations of plants (6), the general effects on the respiration of a wide variety of plants show an independence of oxygen until a partial pressure of 2 per cent. oxygen is reached. Below this point a very sharp deeline follows in respiration, measured in most experiments by carbon dioxide production. MACK (6) germinated wheat seeds aerobicallv and after 42 hours transferred the seedlings to 12 different oxygen tensions ranging from 0.6 per cent. to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

GERMINATION, GROWTH, AND RESPIRATION OF RICE AND BARLEY SEEDLINGS AT LOW OXYGEN PRESSURES

Oct 19, 1943

Loading next page...
 
/lp/american-society-of-plant-biologist/germination-growth-and-respiration-of-rice-and-barley-seedlings-at-low-w00wZ6NzJp
Publisher
American Society of Plant Biologist
Copyright
Copyright © 1943 by the American Society of Plant Biologists
ISSN
1532-2548
eISSN
0032-0889
Publisher site
See Article on Publisher Site

Abstract

FIGURES) An extreme sensitivity to oxygen deficieney is demonstrated by barley seeds undergoing germination. The preseniee of a film of water above the seeds, for example, inhibits their germination and rapidly leads to fermentation of a pronounced character with a rapid disintegration of the tissues. This mortalitv may be partly reduced by forcing a stream of air through the water. On the other hand, it is a commoni agricultural practice to germinate rice seeds in standin(g water 1 to several centimeters in depth. This behavior of rice has been observed on several occasions but with one recent exception, no attempt has been made to establish the oxvgen relations of germinating rice on a quantitative basis. In an exhaustive review of the literature oni oxygen relations of plants (6), the general effects on the respiration of a wide variety of plants show an independence of oxygen until a partial pressure of 2 per cent. oxygen is reached. Below this point a very sharp deeline follows in respiration, measured in most experiments by carbon dioxide production. MACK (6) germinated wheat seeds aerobicallv and after 42 hours transferred the seedlings to 12 different oxygen tensions ranging from 0.6 per cent. to

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off