scholarly journals Effectiveness of Herbicide to Control Rice Weeds in Diverse Saline Environments

2021 ◽  
Vol 13 (4) ◽  
pp. 2053
Author(s):  
Md. Abdul Hakim ◽  
Abdul Shukor Juraimi ◽  
S. M. Rezaul Karim ◽  
Md. Sirajul Islam Khan ◽  
Mohammad Sohidul Islam ◽  
...  
Keyword(s):  
Weed Control ◽  
Rice Field ◽  
Food Contamination ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Comparative Efficacy ◽  
Rice Plants ◽  
Yield Production ◽  
Salinity Levels ◽  
Higher Doses

To mitigate environmental pollution and food contamination caused by inappropriate and excessive herbicide usage, most potent herbicides should be screened to control rice weeds. A research trial was executed for assessing the comparative efficacy of different herbicides to control rice field weeds and to evaluate the toxicity on rice under normal (distilled water) as well as different salinity levels (4 and 8 dS m−1). The study was designed to select the most potent herbicide and its appropriate dose for weed control of rice crop in coastal areas. Fourteen herbicidal treatments were included weed free crop, Pretilachlor (0.25, 0.50, 0.375 and 0.75 kg a.i. ha−1), Propanil + Thiobencarb (0.6 + 1.2, 0.9 + 1.8, 1.2 + 2.4 and 1.8 + 3.6 kg a.i. ha−1), Bensulfuron + MCPA (0.03 + 0.05, 0.045 + 0.075, 0.06 + 0.1 and 0.09 + 0.15 kg a.i. ha−1) and weedy check (control). The results revealed that all tested herbicides in higher than recommended doses for non-saline rice fields were effective in controlling Cyperus iria, Echinochloa colona (salt-tolerant) and Jussiaea linifolia but showed in light injury in rice plants grown in non-saline soils. These higher doses of herbicides recorded severe crop injury under saline conditions indicating their differential efficacy from normal non-saline conditions. Treatments including Pretilachlor (0.375kg a.i. ha−1), Propanil + Thiobencarb (0.9 + 1.8 kg ai/ha), Bensulfuron + MCPA (0.06 + 0.1 kg a.i. ha−1) and Pretilachlor (0.50 kg a.i. ha−1) remained superior in terms of weed control and grain yield production under all salinitylevels at TanjungKarang, Malaysia. It is concluded that herbicides respond differently under saline conditions and optimization of their doses potentially prevent herbicidal injury in rice plants.

scholarly journals Relative Salinity Tolerance of Turf-type Saltgrass Selections

HortScience ◽  
2007 ◽  
Vol 42 (2) ◽  
pp. 205-209 ◽  
Author(s):  
Y.L. Qian ◽  
J.M. Fu ◽  
S.J. Wilhelm ◽  
D. Christensen ◽  
A.J. Koski
Keyword(s):  
Salt Tolerance ◽  
Culture System ◽  
Hydroponic Culture ◽  
Distichlis Spicata ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Saline Irrigation ◽  
Turf Quality ◽  
Salinity Levels ◽  
Irrigation Waters

Salt-tolerant turfgrass is highly desirable in areas associated with saline soils or saline irrigation waters. To determine the salt tolerance of 14 saltgrass [Distichlis spicata var. stricta (Greene)] selections, two greenhouse studies were conducted by means of a hydroponic culture system. Five salinity levels (from 2 to 48 dS·m−1) were created with ocean salts. In general, turf quality decreased and leaf firing increased as salinity increased. However, varying levels of salt tolerance were observed among selections based on leaf firing, turf quality, root growth, and clipping yield. Selections COAZ-01, COAZ-18, CO-01, and COAZ-19 exhibited the best turf quality and the least leaf firing at 36 and 48 dS·m−1 salinity levels in both Experiments 1 and 2. At the highest salinity level (48 dS·m−1), COAZ-18 and COAZ-19 exhibited the highest root activity among all accessions. Salinity levels that caused 25% clipping reduction ranged from 21.2 to 29.9 dS·m−1 and were not significantly different among entries. The data on 25% clipping reduction salinity of saltgrass generated in this study rank saltgrass as one of the most salt-tolerant species that can be used as turf.

Deciphering Diversity of Salt-Tolerant Bacilli from Saline Soils of Eastern Indo-gangetic Plains of India

2014 ◽  
Vol 32 (2) ◽  
pp. 170-180 ◽  
Author(s):  
Anjney Sharma ◽  
Preeti Singh ◽  
Sudheer Kumar ◽  
Prem Lal Kashyap ◽  
Alok Kumar Srivastava ◽  
...  
Keyword(s):  
Saline Soils ◽  
Salt Tolerant ◽  
Gangetic Plains

scholarly journals Cekaman Garam NaCl danTeknik Aplikasi Azolla pada Tanaman Padi

2020 ◽  
Vol 25 (3) ◽  
pp. 349-355
Author(s):  
Fitri Krismiratsih ◽  
Sugeng Winarso ◽  
Slamerto Slamerto
Keyword(s):  
Salt Stress ◽  
Block Design ◽  
Ground Cover ◽  
Dry Weight ◽  
Soil Conditions ◽  
Application Technique ◽  
Rice Plants ◽  
Root Dry Weight ◽  
Randomized Block Design ◽  
Salinity Levels

Efforts to increase production potential can be carried out by extensification in a less productive saline land. Salinity is a major problem in the growth of most plants. Azolla is a plant that is sensitive to salinity, but if it is applied well, it can grow optimally at high salinity levels. The purpose of this study is to obtain an azolla application technique that is effective in increasing the adaptation of rice plants to NaCl saline soil conditions. The experimental design used was Randomized Block Design (RBD) with 2 factors and 3 replications. The first factor was the azolla application technique consisted of 3 levels: fresh azolla composted, fresh azolla immersed, and fresh azolla as a ground cover. The second factor was the levels of NaCl salt stress consisted of 4 levels: control DHL 0, 2, 4, and 8 dS m-1. The adaptation ability of rice plants based on variable plants height growth rate, number of tillers, strove dry weight, root dry weight, stomata density, leaf chlorophyll (SPAD), age of flowering, number of paddy grain, and harvest index. The results showed how to test content up to 2 dS m-1 which increased rice growth especially the application of azolla composted. Increasing stress to 4 and 8 dS m-1showed bad effects on vegetative, physiology, and yields of rice components. The stronger of salt stress the higher all plants growth variables except the age of flowering that actually showed the acceleration of flowering. Application of composted azolla can increase the root dry weight and azolla as a ground cover can increase the numbers of paddy grains.   Keywords: azolla, NaCl, rice, stress

Salt Tolerance of Trifolium alexandrinum L. I. Comparison of the Salt Response of T. alexandrinum and T. pratense

1982 ◽  
Vol 9 (2) ◽  
pp. 221
Author(s):  
E Winter ◽  
A Lauchli
Keyword(s):  
Trifolium Pratense ◽  
Dry Weight ◽  
Solution Culture ◽  
Trifolium Alexandrinum ◽  
Salt Tolerant ◽  
Ion Distribution ◽  
Plant Parts ◽  
Salinity Levels ◽  
Survival Potential ◽  
Induced Changes

Trifolium alexandrinum and Trifolium pratense were grown in solution culture at salinity levels of 50, 100, 150 and 200 mM NaCl. Trifolium alexandrinum survived at all salt treatments. Salt-induced growth reductions of 30 and 47% occurred at 50 and 100 mM NaCl, respectively, mostly affecting stems. Plants still survived at 150 and 200 mM NaCl. This species can therefore be considered moderately salt tolerant. Trifolium pratense showed a low survival potential at salt treatments of 100 mM NaCl or higher, and the dry weight production of all plant parts was considerably affected at moderate salt levels. Thus T. alexandrinum is considered more salt tolerant than T. pratense. The distribution and contents of K+, Na+ and Cl- in both species indicate that T. pratense translocates Na+ and Cl- linearly with increasing salt treatment into stems and leaves, whereas low foliar Na+ and Cl- contents in T. alexandrinum suggest some mechanisms that control the ion distribution in the different plant parts. Salt-induced changes of the K+ and Ca2+ contents of the different plant parts of both species are discussed.

scholarly journals Responses of Foreign GA3 Application on Seedling Growth of Castor Bean (Ricinus communis L.) under Salinity Stress Conditions

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 274
Author(s):  
Xiurong Jiao ◽  
Wenfang Zhi ◽  
Guijuan Liu ◽  
Guanglong Zhu ◽  
Gongneng Feng ◽  
...  
Keyword(s):  
Plant Height ◽  
Seedling Growth ◽  
Castor Bean ◽  
Ricinus Communis ◽  
Proline Content ◽  
Stem Diameter ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Marginal Lands ◽  
Ricinus Communis L

Castor bean (Ricinus communis L.), a promising bioenergy crop, is readily planted in marginal lands like saline soils. A controlled experiment was conducted to explore the possibility of using gibberellic acid (GA3) as a promoter for caster bean grown under NaCl conditions and to try to determine the most appropriate concentration of GA3 for seedling growth. The seeds of salt-tolerant cultivar Zibi 5 were firstly soaked with 0, 200, 250, and 300 µM GA3 for 12 h and then cultured with 1/2 Hoagland solution containing 0, 50, and 100 mM NaCl in pots filled with sand. Plant height, stem diameter, leaf area, dry mater of each organ, activity of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), soluble protein, and proline content in the leaves were examined. Plant height and stem diameter, SOD, and POD activity was significantly highest in the treatment of 250 µM GA3 under salt concentration of 50 mM NaCl among all the testing days; protein content was highest when GA3 concentration was 250 µM under 100 mM NaCl treatment. This indicated that caster bean seed soaking with 250 µM GA3 could be the most suitable concentration for promoting seedling growth of caster bean, improving their stress resistance.

Comparative Efficacy of Terbutryne and 2,4-D based Herbicides for Weed Control in Wheat

1974 ◽  
Vol 20 (3) ◽  
pp. 300-303
Author(s):  
H. G. Singh ◽  
M. S. Shaktawat ◽  
A. S. Rathore
Keyword(s):  
Weed Control ◽  
Comparative Efficacy

scholarly journals Salinity Tolerance Turfgrass: History and Prospects

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Md. Kamal Uddin ◽  
Abdul Shukor Juraimi
Keyword(s):  
Developing Countries ◽  
Poor Quality ◽  
Pharmaceutical Products ◽  
Salt Tolerant ◽  
High Salinity Water ◽  
Salinity Levels ◽  
Quality Water ◽  
Poor Quality Water ◽  
Salinity Water ◽  
Potential Use

Land and water resources are becoming scarce and are insufficient to sustain the burgeoning population. Salinity is one of the most important abiotic stresses affecting agricultural productions across the world. Cultivation of salt-tolerant turfgrass species may be promising option under such conditions where poor quality water can also be used for these crops. Coastal lands in developing countries can be used to grow such crops, and seawater can be used for irrigation of purposes. These plants can be grown using land and water unsuitable for conventional crops and can provide food, fuel, fodder, fibber, resin, essential oils, and pharmaceutical products and can be used for landscape reintegration. There are a number of potential turfgrass species that may be appropriate at various salinity levels of seawater. The goal of this review is to create greater awareness of salt-tolerant turfgrasses, their current and potential uses, and their potential use in developing countries. The future for irrigating turf may rely on the use of moderate- to high-salinity water and, in order to ensure that the turf system is sustainable, will rely on the use of salt-tolerant grasses and an improved knowledge of the effects of salinity on turfgrasses.

scholarly journals Putting halophytes to work – genetics, biochemistry and physiology

2013 ◽  
Vol 40 (9) ◽  
pp. v ◽  
Author(s):  
Bernhard Huchzermeyer ◽  
Tim Flowers
Keyword(s):  
Salt Tolerance ◽  
Small Group ◽  
Economic Importance ◽  
Saline Soils ◽  
Special Issue ◽  
Salt Tolerant ◽  
Cost Action ◽  
Genes To Ecosystems ◽  
The Cost

Halophytes are a small group of plants able to tolerate saline soils whose salt concentrations can reach those found in ocean waters and beyond. Since most plants, including many of our crops, are unable to survive salt concentrations one sixth those in seawater (about 80 mM NaCl), the tolerance of halophytes to salt has academic and economic importance. In 2009 the COST Action Putting halophytes to work – from genes to ecosystems was established and it was from contributions to a conference held at the Leibniz University, Hannover, Germany, in 2012 that this Special Issue has been produced. The 17 contributions cover the fundamentals of salt tolerance and aspects of the biochemistry and physiology of tolerance in the context of advancing the development of salt-tolerant crops.

Sign in / Sign up

Export Citation Format

Share Document