Abstract
Maize (Zea mays L.) is one of the world’s most important cereal crops, but its productivity is frequently limited by water stress. Seed priming with biostimulants has proven to be an effective technique for increasing seed vigour, germination, and crop establishment in adverse environmental conditions. The study was conducted during the pre-kharif season of 2024 at Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal, to evaluate the effect of seed priming with a seaweed-based biostimulant (Ascophyllum nodosum extract) on growth, physiological parameters, and yield of maize under water stress conditions. The experiment was conducted in a randomised block design with seven treatments and six replications of the maize variety Vikram. Before sowing, seeds were treated with varying concentrations of A. nodosum extract and a bio-enzyme (Seedplus). The findings revealed that seed priming had a significant effect on field emergence, chlorophyll content (SPAD value), plant height, root length, cob characteristics, and maize yield attributes. Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98), root length (78.42 cm), cob length (25.07 cm), number of seeds per cob (386.67), and seed weight per cob (132.50 g). This treatment produced the highest seed yield (12.22 kg plot-1 and 10.18 t ha-1), indicating superior performance under water stress conditions. The seaweed extract contains growth-promoting substances, micronutrients, and phytohormone-like compounds that improve metabolic activity, nutrient uptake, and stress tolerance, which may explain the increased growth and yield. The study suggests that seed priming with Ascophyllum nodosum extract at 1.5 mL/kg seed is an effective and sustainable strategy to improve maize productivity under water stress conditions. It may be recommended for cultivation in regions with limited water availability.
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Claims 9
Claim · model-written summary
Seed priming significantly affected maize field emergence, chlorophyll, height, root length, cob traits and yield attributes.
- Treatment
- seed priminge0
- Outcome
- field emergence, chlorophyll content (SPAD value), plant height, root length, cob characteristics, and maize yield attributese0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings revealed that seed priming had a significant effect on field emergence, chlorophyll content (SPAD value), plant height, root length, cob characteristics, and maize yield attributes”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Priming with A. nodosum at 1.5 ml kg-1 seed yielded the highest field emergence, 49.67%.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- field emergencee0
- Direction
- higheste0
- Value
- 49.67%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest SPAD value, 37.98.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- SPAD valuee0
- Direction
- higheste0
- Value
- 37.98e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest root length, 78.42 cm.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- root lengthe0
- Direction
- higheste0
- Value
- 78.42 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98), root length (78.42 cm)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest cob length, 25.07 cm.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- cob lengthe0
- Direction
- higheste0
- Value
- 25.07 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98), root length (78.42 cm), cob length (25.07 cm)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest number of seeds per cob, 386.67.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- number of seeds per cobe0
- Direction
- higheste0
- Value
- 386.67e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98), root length (78.42 cm), cob length (25.07 cm), number of seeds per cob (386.67)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest seed weight per cob, 132.50 g.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede0
- Outcome
- seed weight per cobe0
- Direction
- higheste0
- Value
- 132.50 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming with A. nodosum at 1.5 ml kg-1 seed (T4) resulted in the highest field emergence (49.67%), SPAD value (37.98), root length (78.42 cm), cob length (25.07 cm), number of seeds per cob (386.67), and seed weight per cob (132.50 g)”
e1“Maize (Zea mays L.)”
Claim · model-written summary
That priming treatment yielded the highest seed yield, 12.22 kg plot-1 and 10.18 t ha-1.
- Treatment
- Seed priming with A. nodosum at 1.5 ml kg-1 seede1
- Outcome
- seed yielde0
- Direction
- higheste0
- Value
- 12.22 kg plot-1 and 10.18 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment produced the highest seed yield (12.22 kg plot-1 and 10.18 t ha-1)”
e1“Seed priming with A. nodosum at 1.5 ml kg-1 seed”
e2“Maize (Zea mays L.)”
Claim · model-written summary
The authors suggest priming maize seed with Ascophyllum nodosum extract at 1.5 mL/kg seed for water limited regions.
- Outcome
- seed priming with Ascophyllum nodosum extract at 1.5 mL/kg seede0
- Qualifier
- regions with limited water availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study suggests that seed priming with Ascophyllum nodosum extract at 1.5 mL/kg seed is an effective and sustainable strategy to improve maize productivity under water stress conditions. It may be recommended for cultivation in regions with limited water availability.”
e1“Maize (Zea mays L.)”
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See all 267 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.