Study on plant characters, fiber quality and cytology of some abaca (Musa textilis Nee) hybrids
1999
Moreno, L.O. (Visayas State Coll. of Agriculture, 6521-A 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 and their parents, determine their meiotic behavior and chromosome number, pollen fertility and spore formation, and to compare their 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 occurring predominantly. Generally, meiosis in abaca varieties and hybrids was normal, although, chromosomal aberrations like laggards and clumping or sticking of chromosomes were also observed. High pollen fertility (85 to 98 percent) and normal tetrad spore formation (72.39 percent) were observed in all the test hybrids and varieties. More than fifty percent (55.61 percent) of the morphological characters (vegetative and inflorescence) studied were inherited by all the hybrids from both parents. In general, the hybrids performed better than the parents/varieties in terms of horticultural parameters and yield and yield components
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