Comparison of vegetative growth and tuber yield of potato (solanumtuberosum l.) from seedling tubers derived from true potato seed (TPS) with those from conventional seed tubers of parental clones
Abstract
A study to show potato (Solanum tuberosum) tuber yield from seedling
tubers derived from true potato seeds (TPS) as planting material was
carried out between March 1994 and January 1995 at the Kabete Field
Station University of Nairobi. Seedling tubers of hybrids and openpollinated
progenies were compared with the conventional seed tubers
of the parental lines and local standard clones on the basis of
vegetative growth, total and marketable tuber yields and tuber
characteristics (size, shape and colour). A split plot design experiment
with three replicates was used in the study.
Vigour of plants from local standard clones was higher at the early
stage of .growth, whereas plants from the advanced imported varieties
had higher vigour in the later slages of growth.
Seed tuber size, sprout uniformity and seasonal changes had
significant effects on the number of main stems per hill. Plants
derived from hybrid seedling and convenlional seed tubers showed
significantly higher number than the rcsl.
Tuber yields from hybrid seedling tubers were significantly (P=O.05)
higher than those from the open pollinated seedling tubers and
convenlional seed tubers. Marketable yield indicated that conventional
seed tubers out yielded seedling tubers. However, local standard clones
gave significantly (P=O.05) lower yield than seedling tubers despite
their tuber uniformity.
Results of tuber characteristics showed that there was segregation
for skin colour, size and shape of the tubers from seedling tubers. The
uniformity of the tubers from conventional seed tubers was better than
that from seedling tubers. Tuber uniformity from the hybrids tended to
be better than that from open pollinated progenies.
Citation
Kidane, A.G.M(1998).Comparison of vegetative growth and tuber yield of potato (solanumtuberosum l.) from seedling tubers derived from true potato seed (TPS) with those from conventional seed tubers of parental clonesSponsorhip
University of NairobiPublisher
Department of Plant Science and Crop Protection, University of Nairobi
Subject
Vegetative growthTuber yield
Potato (Solanumtuberosum L.)
Seedling tubers
True potato seed
Conventional seed tuber
Parental clones
Description
Msc- Thesis
Collections
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