Early planting and 50 ppm IBA spray significantly increased seed cotton yield per feddan in both seasons.

indole-3-butyric acid · yield · Gossypium hirsutum (cotton)Results agree

2 papers in the same direction as this claim

1. positive
   IBA at 20 ppm significantly enhanced boll traits.

   Response of cotton plant to the indole-3-butyric acid application under n fertilization rates. · 2013

   Same directionCited by this paper

2. positive
   0.6% IBA increased boll number per plant and boll weight of cotton.

   Effect of 0.6% IBA Solution on Yield and Quality of Cotton · 2015

   Same direction

sowing time · yield · Gossypium hirsutum (cotton)Positive and negative results

65 papers in the same direction as this claim · 28 in the opposite direction · 1 reporting no difference from an alternative

1. no effect
   Delayed sowing did not increase Bollgard II yield through greater leaf area at flowering.

   Managing yields of high fruit retention in transgenic cotton (Gossypium hirsutum L.) using sowing date · 2008 · compared with normal sowing dates

   Opposite directionCited by this paper

2. positive
   Early planted cotton yielded 10% more than normal planted cotton in four of five years.

   Improved Yield Potential with an Early Planting Cotton Production System · 2002 · compared with normal planted crop

   Same directionCited by this paper

3. positive
   Late sowing increased height, nodes, dry weight, leaves and leaf area at specified ages.

   AIR THERMAL UNITS IN RELATION TO GROWTH AND DEVELOPMENT OF COTTON PLANTS THROUGH DIFFERENT SOWING DATES · 2011

   Same directionCited by this paper

4. positive
   Bolls per plant increased under late planting.

   Tolerance of Egyptian Cotton Varieties (G. barbadense L.) to Late Planting · 2017

   Same directionCited by this paper

5. positive
   Early planting lowered the thermal units needed to produce one cotton boll.

   Performance Evaluation of Three Egyptian Cotton Genotypes under Different Thermal Units Related to Different Planting Dates · 2019

   Same directionCited by this paper

6. negative
   Late planting reduced cotton yield in one of three years and two of three genotypes.

   Planting Date and Potassium Fertility Effects on Cotton Yield and Fiber Properties · 1998

   Opposite direction

7. negative
   Cotton yield declined with later planting dates.

   Effect of cultivars and sowing dates on yield and quality of Gossypium hirsutum L. crop · 2009

   Opposite direction

8. negative
   Delayed planting reduced cotton yields.

   Effect of Planting Date on the Yield and Fiber Properties of Three Cotton Cultivars¹ · 1973

   Opposite direction

86 papers more in this group

application · yield · Gossypium hirsutum (cotton)Positive and negative results

252 papers in the same direction as this claim · 27 in the opposite direction · 3 reporting no difference from an alternative

1. no effect
   Foliar methanol did not increase cotton yield at any location.

   Foliar Methanol Applications to Cotton in the Southeastern United States: Leaf Physiology, Growth, and Yield Components · 1995

   Opposite direction

2. negative
   Fluazifop at four weeks gave cotton 93% of weed-free yield.

   Growth and Interaction of Bermudagrass (Cynodon dactylon) by Cotton (Gossypium hirsutum) · 1991 · compared with weed-free cotton

   Opposite direction

3. negative
   Peak flowering spraying somewhat reduced weight of late opening bolls.

   Cotton Flowering and Fruiting Responses to Application Timing of Chemical Growth Retardants¹ · 1975

   Opposite direction

4. no effect
   Foliar fertilizers produced no significant yield response.

   Effects of foliar fertilization of texas southern high plains cotton: Leaf phosphorus, potassium, zinc, iron, manganese, boron, calcium, and yield distribution · 1999

   Opposite direction

5. no effect
   First-harvest lint yield was generally unaffected by foliar treatments.

   Influence of surfactants on potassium uptake and yield response of cotton to foliar potassium nitrate · 1995

   Opposite direction

6. no effect
   Foliar fertilizers did not significantly affect lint or seed yield.

   Effects of Foliar Fertilization of Texas Southern High Plains Cotton: Leaf Nitrogen and Growth Parameters · 1998

   Opposite direction

7. negative
   A single 1 mL water spray reduced cotton seed set by 55%.

   Sprinkler‐Induced Flower Losses and Yield Reductions in Cotton (Gossypium hirsutum L.) · 2003

   Opposite direction

8. no effect
   Lint yields were similar with early or early plus midseason glyphosate sprays.

   Timing of Glyphosate Application on Control of Silverleaf Nightshade and Glyphosate-Resistant Cotton Yield · 2006

   Opposite direction

274 papers more in this group