Allelopathic Belongings of Dried Walnut Leaf on Seed Germination and Seedling Growth of Mustard (Brassica campestris) in Agri-silvi System of Uttarakhand Himalaya, India

2014 ◽  
Vol 9 (3) ◽  
pp. 172-179 ◽  
Author(s):  
Sandhya Bahuguna ◽  
Abhishek Bahuguna ◽  
Narendra Singh
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Brassica Campestris ◽  
Uttarakhand Himalaya

SEED GERMINATION AND SEEDLING GROWTH CHARACTERISTICS OF ATRAZINE-SUSCEPTIBLE AND RESISTANT BIOTYPES OF Brassica campestris

1982 ◽  
Vol 62 (3) ◽  
pp. 733-739 ◽  
Author(s):  
L. R. MAPPLEBECK ◽  
V. SOUZA MACHADO ◽  
B. GRODZINSKI
Keyword(s):  
Seed Germination ◽  
Water Content ◽  
Seedling Growth ◽  
Dry Matter ◽  
Brassica Campestris ◽  
Early Stage ◽  
Growth Characteristics ◽  
Significant Difference ◽  
Seedling Characteristics ◽  
Germinated Seeds

Seed germination and seedling characteristics of atrazine-susceptible and resistant wild turnip rape biotypes (Brassica campestris L.) were examined. Seeds of the susceptible biotype germinated earlier, and the germinated seeds grew faster and emerged earlier than seeds of the resistant biotype. Seedlings of the susceptible biotype emerged from greater planting depths than the resistant seedlings. Emerged susceptible seedlings were larger, with longer hypocotyls and greater cotyledon area, and produced more dry matter than the resistant biotype seedlings. Differences in water content of germinated seeds of the two biotypes were noted, with the susceptible biotypes consistently showing a higher water content. There was no significant difference in the respiration rate of the two biotypes at the early stage of seedling growth.

scholarly journals Chlortetracycline inhibits seed germination and seedling growth in Brassica campestris by disrupting H2O2 signaling

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Mi Sun Cheong ◽  
Young-Eun Yoon ◽  
Jin Wook Kim ◽  
Young Kyu Hong ◽  
Sung Chul Kim ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Brassica Campestris ◽  
Production Systems ◽  
Primary Root ◽  
Veterinary Drug ◽  
Agricultural Field ◽  
Production Of Hydrogen ◽  
New Type ◽  
Chlorophyll Level

AbstractAntibiotics have been identified as a new type of environmental contaminant because of their increased use in farm animal production systems. Those drugs that animals are not absorbed mostly are excreted in the feces and urine and contaminates soils. However, the effects of antibiotics on crop plants are still largely unknown. In this study, we determined the effects of chlortetracycline (CTC), a veterinary drug released into the agricultural field by grazing animals or through manure application, on the growth and physiology of Brassica campestris seedlings. Differently from animals, Brassica campestris seedlings have accumulated 5–10-fold higher CTC during cultivation rather than excretion. Morphologically, CTC delays seed germination and inhibits seedling growth such as shortening primary root length and decreasing chlorophyll level. At the molecular level, CTC accumulation in plants downregulated the expression of superoxide dismutase (SOD) genes and decreased the production of hydrogen peroxide (H2O2). Since H2O2 is one of the signaling components involved in the regulation of root growth, exogenous application of H2O2 partially restored the growth and physiology of CTC-treated seedlings. These results suggest that application of CTC-containing manure or compost to soil delays seed germination and inhibits plant growth.

scholarly journals Effect of aqueous extract and compost of invasive weed Ageratina adenophora on seed germination and seedling growth of some crops and weeds

2018 ◽  
Vol 4 (2) ◽  
pp. 11-20 ◽  
Author(s):  
MBB Das ◽  
BD Acharya ◽  
M Saquib ◽  
MK Chettri
Keyword(s):  
Triticum Aestivum ◽  
Seed Germination ◽  
Seedling Growth ◽  
Brassica Campestris ◽  
Cyperus Rotundus ◽  
Root Extract ◽  
Bidens Pilosa ◽  
Invasive Weed ◽  
Weed Seeds ◽  
Ageratina Adenophora

A study was conducted to investigate the effects of invasive weed Ageratina adenophora on the seed germination and seedling growth of Triticum aestivum, Brassica campestris and on weeds Ageratum conyzoides, Bidens pilosa, Galinsoga parviflora and Cyperus rotundus. The aqueous extracts of Ageratina plant’s part root, stem and leaf; and compost extract of Ageratina on different concentrations (control, 1, 2.5, 5 and 10%) were used to determine its effect on the seed germination, shoot and root length of Triticum aestivum, Brassica campestris and some common weed seeds under laboratory condition. The compost of A. adenophora at different doses viz. 0, 10, 20, 40 and 50g compost/kg soil was also applied to study the effect on the seed germination and seedling growth of B. campestris and T. aestivum and some weed seeds. The aqueous and compost extracts of Ageratina caused significant reduction in the seed germination and seedling length (shoot and root) which increased progressively on increasing the concentration of invasive plant's extract. The stem and leaf extracts of A. adenophora have more inhibitory effect on the germination percentage of winter crops as compared to root extract on the test crop seeds under study. In the compost of A. adenophora, the weeds showed more reduction in comparison to the crop plants B. campestris and T. aestivum. J. Biodivers. Conserv. Bioresour. Manag. 2018, 4(2): 11-20

IMPACT OF FERTILIZERS APPLICATION ON SEED GERMINATION AND SEEDLING GROWTH OF VIGNA RADIATA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA
Keyword(s):  
Seed Germination ◽  
Leaf Area ◽  
Seedling Growth ◽  
Vigna Radiata ◽  
Agricultural Research ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Research Field ◽  
Chemical Fertilizer ◽  
Seedling Length

Currently, a real challenge for the workers in the agricultural research field is to stop or reduce the use of expensive agrochemicals/ chemical fertilizers which are hazardous to the environment as well as human health. Present study was aimed to improve the growth and obtain optimum yield of Vigna crop with eco-friendly, non-toxic way and to reduce the use of agrochemical/chemical fertilizer application in agricultural activities. A pot experiment was conducted to study the effect of chemical fertilizer (DAP) and biofertilizer ( Rhizobium strain) separately and in combination on seed germination and seedling growth (at 30 days) based on morphological parameters such as seedling length (cm), fresh weight (g), dry weight (g) and leaf area (cm)2 of Vigna radiata (L.) Wilczek. After one month (30 Days) observations, it was found that seedling length, fresh and dry weights and leaf area were maximum in T4 and minimum in T15, T7 and T8 favored improved seedling length and leaf area whereas T7, T8, and T9 favored improved fresh and dry weights as compared to control.

Effects of nitrogen on sweet sorghum seed germination, seedling growth and physiological traits under NaCl stress

2013 ◽  
Vol 20 (10) ◽  
pp. 1303-1309 ◽  
Author(s):  
Jing MU ◽  
Xiao-Jing LIU ◽  
Jin XU ◽  
Ren-Zhao MAO ◽  
Wei WEI ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Sweet Sorghum ◽  
Nacl Stress ◽  
Physiological Traits

scholarly journals Effects of exogenous silicon on maize seed germination and seedling growth

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yankun Sun ◽  
Jiaqi Xu ◽  
Xiangyang Miao ◽  
Xuesong Lin ◽  
Wanzhen Liu ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Crop Yields ◽  
Dry Weight ◽  
Membrane System ◽  
Water Soluble ◽  
Current Status ◽  
Antioxidant Enzyme Activities ◽  
Chlorophyll Contents ◽  
Antioxidant Defence System

AbstractAs the global population continues to increase, global food production needs to double by 2050 to meet the demand. Given the current status of the not expansion of cultivated land area, agronomic seedlings are complete, well-formed and strong, which is the basis of high crop yields. The aim of this experiment was to study the effects of seed germination and seedling growth in response to silicon (from water-soluble Si fertilizer). The effects of Si on the maize germination, seedling growth, chlorophyll contents, osmoprotectant contents, antioxidant enzyme activities, non-enzymatic antioxidant contents and stomatal characteristics were studied by soaking Xianyu 335 in solutions of different concentrations of Si (0, 5, 10, 15, 20, and 25 g·L−1). In this study, Si treatments significantly increased the seed germination and per-plant dry weight of seedlings (P < 0.05), and the optimal concentration was 15 g·L−1. As a result of the Si treatment of the seeds, the chlorophyll content, osmotic material accumulation and antioxidant defence system activity increased, reducing membrane system damage, reactive oxygen species contents, and stomatal aperture. The results suggested that 15 g·L−1 Si significantly stimulated seed germination and promoted the growth of maize seedlings, laying a solid foundation for subsequent maize growth.

Does N deposition mitigate the adverse impacts of drought stress on plant seed germination and seedling growth?

2020 ◽  
Vol 109 ◽  
pp. 103650
Author(s):  
Shu Wang ◽  
Mei Wei ◽  
Bingde Wu ◽  
Huiyuan Cheng ◽  
Kun Jiang ◽  
...  
Keyword(s):  
Drought Stress ◽  
Seed Germination ◽  
Seedling Growth ◽  
N Deposition ◽  
Plant Seed ◽  
Adverse Impacts
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