Study on plant characters, fiber quality and xytology of some abaca (Musa textilis Nee) fibers
2002
Moreno, L.O. (Leyte State Univ., ViSCA, Baybay, Leyte (Philippines) National Abaca Research Center)
A study on plant characters, fiber and cytology of some abaca hybrids was conducted to determine the relationship of plant and fiber characters of abaca hybrids, their parents, determine their meiotic behaviour and chromosome number, pollen fertility and spore formation and to compare fiber yield. Four abaca varieties and 11 hybrids/progenies were studied. The results revealed that chromosome associations in the cells of these varieties and hybrids were variable. The chromosome counts ranged from n=6 to n=11, and 2n=12 to 2n=20 with n=10 and 2n=20 occuring predominantly. Generally, meiosis in abaca varieties and hybrids was normal, although, chromosomal aberrations like Laggards and clumping or sticking of chromosome was also observed. High pollen fertility (85-98%) and normal tetrad formation (72.39%) were observed in all the test hybrids and varieties. More than fifty percent (55.61%) of the morphological characters (vegetative and inflourescence) studied were inherited by all the hybrids from both parents. In general, the hybrids performed better than the parents in terms of horticultural parameters and yield and yield components.
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