scholarly journals EFFECT OF SOWING DATES AND SEED TREATMENTS ON PRODUCTIVITY AND SEED QUALITY OF SOME WHEAT CULTIVARS

2014 ◽  
Vol 5 (2) ◽  
pp. 227-240
Author(s):  
M. Badawi ◽  
S. El-Moursy ◽  
S. Seadh ◽  
M. El-Emery ◽  
A. Shalaby
Keyword(s):  
Seed Quality ◽  
Wheat Cultivars ◽  
Seed Treatments ◽  
Sowing Dates

EFFECT OF ADDED MOISTURE ON THE QUALITY OF STORED HARD RED WINTER WHEAT SEED

1987 ◽  
Vol 67 (2) ◽  
pp. 403-408 ◽  
Author(s):  
ERROL G. RHODEN ◽  
LAVOY I. CROY
Keyword(s):  
Seed Quality ◽  
Wheat Cultivars ◽  
Moisture Uptake ◽  
Stored Grain ◽  
Water Imbibition ◽  
Key Words Wheat ◽  
Hard Red Winter Wheat ◽  
Polyethylene Bags ◽  
Red Winter Wheat

The objective of this study was to determine what effect adding moisture to stored grain would have on seed quality. Wheat cultivars were tempered to varying moisture levels (12.5, 13.5, 15.5 and 17.5%) and stored in polyethylene bags for 12 wk. Grains tempered to high moisture levels (15.5 and 17.5%) declined in quality during storage as indicated by decreased germination and increased electrolyte leakage of the seeds. Wheat tempered to 13.5% moisture for 12 wk did not show a deterioration in quality. Rates of water imbibition of wheat cultivars were also studied by sequentially weighing imbibing seeds. Cultivars differed significantly in their rates of imbibtion over 36 h, ranging from 18.5 to 24.25 mg g−1 h−1. Moisture uptake for the seven wheat cultivars can be estimated by the following equation[Formula: see text]where T = time (R2 = 0.96).Key words: Wheat (winter), seed quality, tempering, water-imbibition

scholarly journals Yield and Physical and Physiological Quality of Salvia hispanica L. Seeds Grown at Different Sowing Dates

2018 ◽  
Vol 10 (8) ◽  
pp. 182 ◽  
Author(s):  
Patrícia Carine Hüller Goergen ◽  
Ubirajara Russi Nunes ◽  
Raquel Stefanello ◽  
Isabel Lago ◽  
Anderson Rodrigues Nunes ◽  
...  
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Sowing Date ◽  
Main Stem ◽  
Salvia Hispanica ◽  
Sowing Dates ◽  
Physiological Quality ◽  
Salvia Hispanica L ◽  
Physiological Tests

Variations in the sowing date of chia (Salvia hispanica L.) reflect directly on the physiological potential of the produced seeds. This study aimed to analyze the yield and the physical and physiological quality of seeds from the main stem and branches of Salvia hispanica plants grown at different sowing dates. A field experiment was conducted in the crop year of 2016/2017 in five sowing dates (16/09/22, 16/10/28, 17/01/03, 17/02/08 and 17/03/24) in a randomized complete block design with four replicates. Harvest at each sowing date was done when 80% of the leaves of each plant exhibited a darker color, indicating that they were dry. Seed yield was determined in each plant compartment (main stem and branches) and final ear length (cm) and diameter (cm) were also measured at all sowing dates. The following physical and physiological tests were performed to determine seed quality: water content, mass of one thousand seeds, germination test, first count germination, length (root and hypocotyl) and dry matter of the seedlings. Chia can be sown from September to February providing seed yield with high physical and physiological quality. The physical and physiological quality of the chia seeds does not differ between main stem and branches. In late sowing, there is the risk of frost occurrence what may impair the physiological quality and the yield of chia seeds. The best sowing month for obtaining higher yield of chia seeds in a south subtropical region is January.

scholarly journals EFFECT OF SOWING DATES AND IRRIGATION INTERVALS ON GROWTH, YIELD AND SEED QUALITY OF FABA BEAN.

2007 ◽  
Vol 32 (7) ◽  
pp. 5155-5166
Author(s):  
A. El - Metwally ◽  
Gamalat Mohamoud ◽  
Eman El-Haggan
Keyword(s):  
Faba Bean ◽  
Seed Quality ◽  
Growth Yield ◽  
Sowing Dates

scholarly journals Effect of Planting Windows for Seed Production of Soybean (Glycine max L.) in off Season under Kaylan Karnataka Region

2020 ◽  
pp. 130-138
Author(s):  
K. Lokesh ◽  
. Basavegowda ◽  
Mallikarjun Reddy ◽  
. Siddaram ◽  
P. D. Suhas ◽  
...  
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Agricultural Research ◽  
Research Station ◽  
Planting Time ◽  
Agricultural Research Station ◽  
Yield And Quality ◽  
Sowing Dates

Aim: To identify the best planting time for obtaining higher seed yield and quality of Soybean in off season. Study Design: Randomized completely block design (RCBD) Place and Duration of Study: Agricultural Research Station, Halladkere, Bidar, Karnataka between 2016 and 2017. Methodology: A field experiment was conducted at Agricultural Research Station, Halladkere, Bidar to find out the best off season planting time for quality seed production of Soybean. The certified seeds of soybean varieties, JS-335 and Dsb-21 were sown with recommended package of practices at appropriate field condition from November to February at every fortnight with a spacing of 30 cm X 10 cm. The quality parameters related to seed were carried out in the laboratory of seed science department. Further, soybean seeds were treated with fungicide (carbendazim 25% + mancozeb 75%) at the rate of 3 gram per kg of seeds. Results: From the present investigation, it was observed that among the different sowing dates, soybean varieties (JS 335 and DSb 21) sown during 1st fortnight of November recorded significantly higher plant growth parameters as well as seed yield followed by 2nd fortnight of November during off season. Further, climatic factors like rainfall, maximum and minimum temperature and relative humidity played a major role in the off season to produce higher seed yield and quality of Soybean. Conclusion: Among various sowing dates, November 1st Fortnight sowing resulted in highest seed yield with better seed quality in both cultivars (JS-335 and Dsb-21) of soybean.

Effect dates of sowing and cutting time on seed yield and quality of alfalfa (Medicago sativa L.) CV. RL-88

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
P.R. Arvind Kumar ◽  
B. C. Channakeshava ◽  
R. Siddaraju
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Seedling Vigour ◽  
Yield And Quality ◽  
Seedling Length ◽  
Sowing Dates ◽  
Vigour Index

An experiment was carried to find out the effect of sowing dates and cutting time on seed yield and quality of alfalfa cv. RL-88. The results of the experiment revealed that, the significantly higher seed yield per plant (1.491 g), seed yield per plot (161.07 g) and seed yield (355.00 kg ha-1) was noticed in 15th August sowing and the cutting carried out at 60 days after sowing. Whereas, the seed quality parameters of the resultant seeds viz., highest seed germination (95.00 %), seedling length (13.90 cm), seedling dry weight (412.69 mg) and seedling vigour index (1320) found highest in15th August sowing and the cutting followed at 60 days after sowing.

scholarly journals Does the substrate affect the germination of soybean seeds treated with phytosanitary products?

2020 ◽  
Vol 44 ◽  
Author(s):  
Debora Kelli Rocha ◽  
Everson Reis Carvalho ◽  
Raquel Maria de Oliveira Pires ◽  
Heloisa Oliveira dos Santos ◽  
Amanda Carvalho Penido ◽  
...  
Keyword(s):  
Seed Quality ◽  
Soybean Seeds ◽  
Water Restriction ◽  
Seed Treatments ◽  
Randomized Design ◽  
Physiological Quality ◽  
Seedling Germination ◽  
Germination Experiment ◽  
Phytosanitary Products

ABSTRACT The use of an appropriate method that accurately expresses physiological seed quality and minimizes possible phytotoxicity by chemical products in laboratory testing with soybean seeds is relevant. The objective of this work was to evaluate the influence and infer the method adequacy for the representative evaluation of physiological quality of soybean seeds treated with phytosanitary products. Two experiments were carried out in a completely randomized design, with trial 1 in a 9×5 factorial scheme involving nine seed treatments, including fungicides and insecticides, and solutions with five osmotic potentials (0, -0.25, -0.5, -0.75 and -1.0 MPa) for wetting a paper substrate in a germination experiment, with evaluation of the normal seedlings at five and eight days after sowing. The second experiment consisted of a 9×7 factorial, with nine seed treatments and seven methods for germination evaluation at 5 days (between paper - BP, between sand - BS, between paper with water restriction - BPWR, between paper with preconditioning - BPC, sand between paper - SBP and vermiculite between paper - VBP). Treatments with insecticides affect seedling germination and evaluation, with greater phytotoxicity in relation to fungicides. Methods with readily available water led to greater phytotoxicity than methods with low water availability. For soybean germination evaluation of seeds treated with phytosanitary products, the BPC, SBP and VBP methods were optimal.

scholarly journals PRODUCTIVITY AND SEED QUALITY OF SOME SOYBEAN CULTIVARS AS AFFECTED BY SOME SEED TREATMENTS

2013 ◽  
Vol 4 (6) ◽  
pp. 999-1017
Author(s):  
A. Attia ◽  
A. Salama ◽  
S. Seadh ◽  
M. El-Emery ◽  
R. El-Khiary
Keyword(s):  
Seed Quality ◽  
Seed Treatments ◽  
Soybean Cultivars

scholarly journals Importance of biological seed treatment to improve vegetables seed quality

2019 ◽  
Vol 34 (01) ◽  
Author(s):  
Pramod Sharma ◽  
Ashok Kumar Thakur ◽  
Sunil A. Nair
Keyword(s):  
Seed Treatment ◽  
Seed Quality ◽  
Biocontrol Agents ◽  
Seed Treatments ◽  
Beneficial Microbes ◽  
Crop Establishment ◽  
Vegetable Seed

Seed treatment with beneficial microbes or biocontrol agents is called biological seed treatment. Vegetable seed quality includes the physical, pathological, genetic and physiological that leads to successful crop establishment and yield . Use of BCA’s as seed treatments can play an important role in most aspects of seed quality, and be of particular benefit for improved seeding growth under stressful conditions. It not only improve the quality of seed but also protect seed from different seed borne diseases and make the seed healthy.

scholarly journals Coincidence of flowering time and the productivity and quality of cauliflower hybrid seeds

2001 ◽  
Vol 58 (3) ◽  
pp. 533-539
Author(s):  
Marcelo Fontanetti Verdial ◽  
Antonio Ismael Inácio Cardoso ◽  
Márcio Santos de Lima ◽  
Francisco Célio Maia Chaves
Keyword(s):  
Flowering Time ◽  
Seed Quality ◽  
Standard Test ◽  
Genetic Purity ◽  
Plant Weight ◽  
Flowering Season ◽  
Sowing Dates ◽  
Hybrid Seeds ◽  
Number Of Seeds

The missing of flowering synchronization between the self-incompatible lines in a crop field of cauliflower hybrid seeds besides making the seed production smaller can compromise the genetic purity of them. The coincidence of the flowering time between two cauliflower lines was examined to study its effect on the productivity and quality of hybrid seeds. The treatments consisted of six different sowing dates, every fifteen days, using a self-incompatible tropical line pollinated by a winter line which does not present self-incompatibility. The following characteristics were evaluated: leaf average area and number of flowers per plant, number of siliques per plant, number and weight of seeds per plant, weight of thousand seeds and average number of seeds per silique. The germination standard test and genetic seed purity were determined for each treatment. The coincident flowering season between cauliflower lines affects directly the productivity and the genetic quality of the produced hybrid seeds. The closer the flowering time coincidence between the lines, the greater the number of seeds per silique and the smaller the percentage of non-hybrid seedlings. However, the coincidence of the flowering season between lines was found to influence physiological seed quality.

scholarly journals Effect of Sowing Dates and Nitrogen Levels on Popula-tion of Okra Jassids (Amrasca biguttula biguttula Ishida)

2020 ◽  
Vol 3 (2) ◽  
pp. 127-135
Author(s):  
Rajendra Regmi ◽  
Sujata Poudel ◽  
Ram Chandra Regmi ◽  
Jiban Shrestha
Keyword(s):  
Seed Quality ◽  
Insect Pests ◽  
Block Design ◽  
Sowing Date ◽  
Vegetable Crops ◽  
Damage Score ◽  
Amrasca Biguttula Biguttula ◽  
Nitrogen Levels ◽  
Sowing Dates

Okra (Abelmoschus esculentus L. (Moench) is one of the most important vegetable crops grown in Nepal. The crop is susceptible to various insect pests of which jassids (Amrasca biguttula biguttula Ishida.) is most predominant which reduces production and deteriorates seed quality of okra. A field study was conducted at Horticulture Farm, Agriculture and Forestry University, Rampur, Chitwan, Nepal to elucidate the effect of sowing date and nitrogen levels on the population and damage of jassids from April to September 2018. Three levels of nitrogen (100, 200 and 300 kg N ha-1) and five sowing dates (8th April, 20th April, 2nd May, 14th May and 26th May, 2018) were evaluated in randomized complete block design with three replications. Results indicated that the highest damage score was recorded in okra which was sown on 8th April (2.39) followed by 20th April (2.31) and 2nd May (1.26). The highest damage score of jassids was obtained with the use of nitrogen at the rate of 200 kg ha-1 (1.94) followed by 300 kg/ha (1.72) and 100 kg ha-1 (1.54). Mean population of jassids was maximum with okra sown on 20th April (29.91) and minimum with okra sown on 26th May (6.95). This study showed that late planting i.e. 26th May and applying low level of nitrogen i.e. 100 kg N ha- 1is an effective approach for reducing the jassids population and its damage in okra.

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