ISHS Acta Horticulturae 425: II International Pineapple Symposium
PERFORMANCE AND STABILITY OF PINEAPPLE HYBRIDS IN G X E TRIALS IN MALAYSIA |
| Author: | Y.K. Chan |
| Abstract:
Six potential pineapple hybrids developed from a hybridization programme at MARDI were tested with two check varieties at three environments. The environments covered two agroclimatic zones i.e. Zone 1 (2–3 months distinct annual drought) and Zone 3 (no distinct drought). They also covered two soil types i.e. peat and mineral soil. The peat environment was favourable for development of strong vegetative vigour in terms of production of suckers and slips, crown size, and "D" leaf weight. The yield was also 50 % higher compared with mineral soils because of the concomitantly larger fruit size. However, fruit quality in terms of TSS % was lower and fruits matured later at the peat environment. Strong genotype x environment interactions were found in the majority of characters. When the interactions were analysed and genotypic stabilities computed, it was found that three of the hybrids i.e. A20–3, D4–37 and A25–34 showed good potential. A20–3 and D4–37 have high, stable yields over environments and may be suitable selections for canning while A25–34 had mediocre yield but high, stable TSS % which made it suitable for table fruit. | |
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