Seed Coating and Tillage Effects on Sesame Stand Establishment and Planter Performance for Single Seed Sowing

Sesame seed treatments consisted of 2 different coatings and uncoated seeds. These were tested to determine their effect on accuracy of plant spacing after emergence in single-seed sowing under different field conditions. Seedbed treatments were composed of traditional tillage without crop residue and conservative tillage with wheat stubble. To quantify plant spacing accuracy and emergence uniformity, spacing between plants within a row and plant emergence per day were measured. The measurements were used to calculate the quality of feed index, multiples index, skip index, precision, emergence rate index, mean emergence date and the percentage of emergence. It was concluded that seed treatments had a significant effect on multiples index and skip index of horizontal distribution pattern and emergence rate index, mean emergence date and the emergence percentage. The coating acted negatively on seed germination and led to missing plants and less plant spacing uniformity in the row. The shortest emergence date and maximum percentage of emergence and quality of feed index were obtained with uncoated sesame seeds. The parameters, except emergence rate index, were not affected statistically by tillage treatments. It was found that all seeds emerged in less time on conservation tillage plots with stubble.

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Cotton Emergence and Yield Response to Planter Depth and Downforce Settings in Different Soil Moisture Conditions

AgriEngineering ◽

10.3390/agriengineering3020022 ◽

2021 ◽

Vol 3 (2) ◽

pp. 323-338

Author(s):

Simerjeet Virk ◽

Wesley Porter ◽

John Snider ◽

Glen Rains ◽

Changying Li ◽

...

Keyword(s):

Soil Moisture ◽

Field Studies ◽

Field Conditions ◽

Yield Response ◽

Stand Establishment ◽

Cultivar Selection ◽

Study Results ◽

N Treatment ◽

Planter Performance ◽

Moisture Conditions

US cotton producers are motivated to optimize planter performance to ensure timely and uniform stand establishment early in the season, especially when planting in sub-optimal field conditions. Field studies were conducted in 2017, 2018 and 2019 to evaluate the effect of seeding depth and planter downforce on crop emergence and yield in cotton planted in different soil moisture conditions. Field conditions representative of dry, normal and wet soil moisture conditions were attained by applying 0, 1.27 and 2.54 cm of irrigation within the same field. Two cotton cultivars (representing a small-seeded and a large-seeded cultivar, 9259–10,582 and 11,244–14,330 seeds kg−1, respectively), were planted at seeding depths of 1.3, 2.5 and 3.8 cm with each seeding depth paired with three different planter downforces of 0, 445 and 890 N in each block. Cotton was planted in plots that measured 3.66 m (four-rows) wide by 10.67 m long. Results indicated that crop emergence was affected by the seeding depth across most field conditions and higher crop emergence was observed in the large-seeded cultivar at 1.3 and 3.8 cm seeding depths in dry and wet field conditions, respectively. Lint yield was also higher for the large-seeded cultivar at the 3.8 cm seeding depth across all field conditions in 2017, and in dry field conditions in 2018. Planter downforce effect on crop emergence varied among the cultivars where the large-seeded cultivar exhibited higher crop emergence than the small-seeded cultivar at 445 and 890 N downforce. Planter downforce of 445 N yielded greater than the 0 and 890 N treatment in dry field conditions in 2017. The study results suggest that matching planter depth and downforce settings for prevalent soil moisture conditions at planting along with appropriate cultivar selection can help in achieving optimal emergence and yield in cotton.

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Evaluation of seed coating treatment on maize (Zea mays L.) stand establishment and seed rot caused by Pythium species at early planting season

10.31274/rtd-180813-11687 ◽

1994 ◽

Author(s):

Berto Arias-Rivas

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Seed Coating ◽

Pythium Species ◽

Stand Establishment ◽

Early Planting ◽

Seed Rot ◽

Planting Season

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Single-seed sowing increased pod yield at a reduced seeding rate by improving root physiological state of Arachis hypogaea

Journal of Integrative Agriculture ◽

10.1016/s2095-3119(19)62712-7 ◽

2020 ◽

Vol 19 (4) ◽

pp. 1019-1032

Author(s):

Xiao-yan LIANG ◽

Feng GUO ◽

Ye FENG ◽

Jia-lei ZHANG ◽

Sha YANG ◽

...

Keyword(s):

Arachis Hypogaea ◽

Physiological State ◽

Seeding Rate ◽

Pod Yield ◽

Single Seed ◽

Seed Sowing

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Seed Coating: A Tool for Stand Establishment; a Stimulus to Seed Quality

HortTechnology ◽

10.21273/horttech.1.1.98 ◽

1991 ◽

Vol 1 (1) ◽

pp. 98-102 ◽

Cited By ~ 18

Author(s):

Glen Kaufman

Keyword(s):

Seed Quality ◽

Quality Standards ◽

Seed Coating ◽

Stand Establishment ◽

Coating Industry ◽

Standard Product ◽

Establishment Potential

Seeds are coated for ease of handling, singulation, precise placement, and the incorporation of beneficial chemicals or microbials. Coated seeds are accepted widely as a standard product for many crops. Quality demands for seed suitable for coating have improved knowledge of physiological seed quality. Higher, better-defined quality standards in the seed and coating industry, combined with additional quality demand for enhanced seed, will continue to improve stand establishment potential for growers.

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Drip Irrigation and Stand Establishment Affect Yield and Quality of Cantaloupe

HortScience ◽

10.21273/hortsci.33.3.545d ◽

1998 ◽

Vol 33 (3) ◽

pp. 545d-545

Author(s):

D.I. Leskovar ◽

J.C. Ward ◽

R.W. Sprague ◽

A. Meiri

Keyword(s):

Field Experiments ◽

Irrigation System ◽

Fruit Size ◽

Growth Yield ◽

Vegetable Production ◽

Silty Clay ◽

Dry Land ◽

Stand Establishment ◽

Yield And Quality

Water pumping restrictions of high-quality irrigation water from underground aquifers is affecting vegetable production in Southwest Texas. There is a need to develop efficient deficit-irrigation strategies to minimize irrigation inputs and maintain crop profitability. Our objective was to determine how growth, yield, and quality of cantaloupe (Cucumis melo L. cv. `Caravelle') are affected by irrigation systems with varying input levels, including drip depth position and polyethylene mulch. Stand establishment systems used were containerized transplants and direct seeding. Field experiments were conducted on a Uvalde silty clay loam soil. Marketable yields increased in the order of pre-irrigation followed by: dry-land conditions, furrow/no-mulch, furrow/mulch, drip-surface (0 cm depth)/mulch, drip-subsurface (10-cm depth)/mulch, and drip-subsurface (30 cm depth)/mulch. Pooled across all drip depth treatments, plants on drip had higher water use efficiency than plants on furrow/no-mulch or furrow/mulch systems. Transplants with drip-surface produced 75% higher total and fruit size No. 9 yields than drip-subsurface (10- or 30-cm depth) during the first harvest, but total yields were unaffected by drip tape position. About similar trends were measured in a subsequent study except for a significant irrigation system (stand establishment interaction for yield. Total yields were highest for transplants on drip-subsurface (10-cm depth) and direct seeded plants on drip-subsurface (10 and 30 cm depth) with mulch.

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