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Table 3 P-values of the F ratios from ANOVA for the effects of pruning time, fraction of plants pruned and their interaction on average pineapple fruit quality attributes and variation in quality (CV) in two experiments for data based on all plants and on plants with slips only

From: Selective pruning in pineapple plants as means to reduce heterogeneity in fruit quality

Fruit quality/Factor

Effect on average fruit quality

Effect on variation in fruit quality

All plants

Plants with slips

All plants

Plants with slips

Expt 1

Expt 2

Expt 1

Expt 2

Expt 1

Expt 2

Expt 1

Expt 2

Fruit weight (kg)

        

  Pruning time (PT)

0.923

0.754

0.995

0.740

0.048 *

0.392

0.194

0.183

  Fraction plants pruned (FP)

0.974

0.363

0.953

0.286

0.917

0.758

0.693

0.342

  PT × FP

0.515

0.287

0.668

0.132

0.388

0.570

0.717

0.032 *

Infructescence weight (kg)

        

  Pruning time (PT)

0.892

0.791

0.968

0.776

0.106

0.358

0.170

0.152

  Fraction plants pruned (FP)

0.985

0.465

0.959

0.395

0.886

0.851

0.606

0.490

  PT × FP

0.507

0.281

0.661

0.120

0.335

0.347

0.678

0.028 *

Crown weight (kg)

        

  Pruning time (PT)

0.021 *

0.528

0.002 **

0.553

0.058

0.691

0.141

0.954

  Fraction plants pruned (FP)

0.158

0.510

0.178

0.657

0.120

0.735

0.111

0.699

  PT × FP

0.395

0.686

0.434

0.845

0.448

0.790

0.666

0.950

Fruit length (cm)

        

  Pruning time (PT)

0.923

0.890

0.954

0.886

0.070

0.930

0.016 *

0.891

  Fraction plants pruned (FP)

0.995

0.404

0.986

0.520

0.295

0.699

0.755

0.772

  PT × FP

0.961

0.356

0.966

0.495

0.995

0.247

0.841

0.672

Infructescence length (cm)

        

  Pruning time (PT)

0.744

0.796

0.819

0.783

0.344

0.573

0.972

0.909

  Fraction plants pruned (FP)

0.973

0.557

0.915

0.478

0.425

0.811

0.903

0.767

  PT × FP

0.906

0.524

0.972

0.370

0.683

0.311

0.737

0.360

Crown length (cm)

        

  Pruning time (PT)

0.297

0.551

0.177

0.613

0.353

0.795

0.655

0.559

  Fraction plants pruned (FP)

0.897

0.609

0.893

0.687

0.041 *

0.765

0.134

0.678

  PT × FP

0.716

0.713

0.697

0.846

0.297

0.247

0.200

0.505

Ratio crown length: infructescence length

  Pruning time (PT)

0.543

0.422

0.587

0.404

0.865

0.898

0.910

0.489

  Fraction plants pruned (FP)

0.830

0.681

0.750

0.645

0.337

0.671

0.606

0.572

  PT × FP

0.754

0.754

0.858

0.678

0.294

0.064

0.241

0.130

Total soluble solids (°Brix)

        

  Pruning time (PT)

0.914

0.868

0.901

0.914

0.700

0.353

0.858

0.418

  Fraction plants pruned (FP)

0.531

0.332

0.587

0.302

0.973

0.143

0.816

0.076

  PT × FP

1.000

0.416

0.998

0.477

0.966

0.498

0.871

0.589

Juice pH

        

  Pruning time (PT)

0.838

0.810

0.691

0.796

0.606

0.359

0.706

0.312

  Fraction plants pruned (FP)

0.011 *

0.781

0.013 *

0.742

0.775

0.273

0.703

0.347

  PT × FP

0.339

0.397

0.291

0.447

0.806

0.776

0.848

0.775

Flesh translucency

        

  Pruning time (PT)

0.911

0.947

0.817

0.967

0.871

0.987

0.994

0.970

  Fraction plants pruned (FP)

0.722

0.324

0.842

0.283

0.903

0.935

0.807

0.778

  PT × FP

0.072

0.140

0.113

0.274

0.151

0.142

0.184

0.163

  1. Values in bold indicate significant P-values, P < 0.05.
  2. *Significant at the 0.05 probability level; **Significant at the 0.01 probability level.