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 |