| Summary: | 碩士 === 國立中興大學 === 園藝學系 === 84 === In order to investigated the growth of tissue culture plants in
passionfruit ''Tainong No.1'' (P. edulis Sims ×P. edulis F.
flavicarpa Deg.), own-rooted tissue culture plants, tissue
culture scions grafted on the seedling stock of P. edulis f.
foavicarpa Deg. and common scions grafted on the same stock
were used as material in this study. Potted passionfruit plants
were grown in field of the Viticulture Research Station, NCHU
in autumn of 1994, and their growth was investigated as well as
the virus infection was traced. It was found that whether the
diameter and length of the main branch, number of branches,
number of nodes, fresh weight and length of branches, total
area and weight of leaves, number of flowers and fruits, root
system and yield of tissue culture own-rooted and tissue
culture grafting plants common- scioned plants. The tissue
culture owned-root plants had the highest products and their
fresh weight of branches and leaves was two times more than
commom-scioned plants. Nevertheless the yield of per plant in
tissue culture grafting plants was 1.5 times more than the
tissue culture own-rooted plants and two times more than common-
scioned plants. However the fruit sizes and quality of the
three tested plants did not show difference. By observing the
sections of leaf, stem and root via microscope, it was shown
that the array of cells was in good order and tight.
Additionally, the PWV and PaMV virus were traced and
determined, the results showed that the virus infection percent
of tissue culture own-rooted plants was the lowest and the
infected time was the shortest, while the infection percent of
common scioned plants was the highest and the infected time was
the longest.
|
|---|
