HOME >> BIOLOGY >> NEWS
Could rice be the source for a natural herbicide?

The growth of rice (Oryza sativa L.) is of great agricultural importance but it is affected by the common weed, barnyardgrass (Echinochloa crus-galli). Scientists from the Department of Crop Science at Konkuk University examined the use of rice allelopathic potential for weed control.

A laboratory bioassay using water extracts was conducted to determine the alleopathic potential of different parts of rice crop on seed germination and growth of barnyardgrass, and to select high allelopathic potential rice varieties using genetic characters and phenotypes.

The alleopathic potential was evaluated from extracts of leaf, straw and hull of 114 rice varieties, i.e. the first group was of leaf extracts and its inhibition rate was the highest in CUBA 65-v-58, the second group of straw extracts was observed with inhibition rate highest in Dangneunbangju and third group of rice hull extracts was observed with inhibition rate highest in Baekambyeo.

Another part of the study examined comparison of allelopathic rice varieties: using genetic characters and phenological types; from different origins; with different maturity times; with the existence or non-existense of hull color; with the existence or non-existense of an awn or awn color. Scientists have observed about 114 rice varieties with different parts of plant i.e. allelopathic effects of extracts from leaves, straw and hull on barnyardgrass. The study is published in the July-August 2003 issue of Agronomy Journal

Ill-Min Chung, project leader, stated, "These results suggest that rice body parts may be a source of natural herbicides and that it is necessary to develop acceptable selection standard, there may also be genetic variation in rice varieties for their allelopathic potential on barnyardgrass. In the future it might be possible to develop rice varieties with high allelopathic potential."


'"/>

Contact: Sara Uttech
suttech@agronomy.org
608-273-8080
American Society of Agronomy
5-Sep-2003


Page: 1

Related biology news :

1. Endometriosis: Could angiostatic therapy be the new treatment of the future?
2. Could mice hold the secret to longer life?
3. Could vitamins raise levels of bad cholesterol? Animal study suggests they might
4. Could memory performance and spatial learning be genetically based?
5. Could a specific protein contribute to erectile dysfunction for the diabetic and obese?
6. Could diabetes treatments fight cancer?
7. Could hibernators hold the key to improving organ preservation?
8. Could Bt transgenic crops have nutritionally favourable effects on insects?
9. Could one less cookie a day help the fight against fat?
10. Could an anti-marijuana compound hold the key to body weight and appetite control?
11. Study finds genetic aberrations linked to lung cancer; Could help in early diagnosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/24/2019)... ... June 24, 2019 , ... According to the World ... the four most common STDs: chlamydia, gonorrhea, trichomoniasis (or "trich") and syphilis. And that’s ... and bisexual African American men accounted for the largest number of HIV diagnoses (9,807), ...
(Date:6/18/2019)... Calif. (PRWEB) , ... June 18, 2019 , ... ... multi-GPU deep learning cloud solutions, today introduced Data Science Workstations-as-a-Service as part of ... workstation hardware from BOXX Technologies, Cirrascale Data Science Workstations feature NVIDIA® Quadro RTX™ ...
(Date:6/14/2019)... Va. (PRWEB) , ... June 14, 2019 , ... Molecular ... is estimated to be $8,760 million in 2019. Major segments that are expected ... These are all broken out and forecasted as segments in Kalorama’s The World ...
Breaking Biology News(10 mins):
(Date:6/11/2019)... ... June 10, 2019 , ... Advancements with ... upcoming episode, scheduled to broadcast 4Q/2019. Check your local listings for more information. ... viewers about how its technology facilitates laboratories to improve efficiency and quality of ...
(Date:6/6/2019)... , ... June 05, 2019 , ... WCCT Global, ... medical device industries, announced today that they will be receiving 3 awards at the ... CA. WCCT received 2 awards in the categories of overall Quality and Compatibility (Access ...
(Date:5/31/2019)... ... May 30, 2019 , ... A study released ... delivery system for the sustained release of human placental stem cell (HPSC)-derived conditioned ... able to deliver CM into the injured kidney, where it helped restore function ...
(Date:5/14/2019)... ... May 13, 2019 , ... Leak Detection Associates (LDA), the ... Biotechnology, Medical Device and Food Packaging Industries’ is excited to announce the go-live ... LDA’s ability to communicate directly with the marketplace; serving as a destination to ...
Breaking Biology Technology:
Cached News: