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Article
Cytological study of a male-sterile Cryptomeria japonica that does not release microspores from tetrads
To determine the mechanism of male-sterility Cryptomeria japonica tree Shindai3, the process of microspore development was observed under light and fluorescence microscopy. Microspore development in the Shindai3 ...
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Article
Plus tree of Cryptomeria japonica D. Don with a heterozygous male-sterility gene
To find plus tree clones of Cryptomeria japonica that are heterozygous for a male-sterility gene (Aa), we crossed a homozygous male-sterile tree (aa) with 63 clones. Male sterility in this case is controlled by a...
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Article
Stand structure and composition of a 60-year-old larch (Larix kaempferi) plantation with retained hardwoods
Tree retention is understood as a key practice in creating complexity, leading to heterogeneity in resources and habitats in managed stands. In this article, we clarify the long-term effects of tree retention ...
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Article
Study of sugi (Cryptomeria japonica D. Don) with male-sterility gene using CAPS markers
The frequency of open-pollinated male-sterile seedlings from a male-sterile mother tree in Cryptomeria japonica D. Don was determined in 765 open-pollinated seedlings. Pollen was not formed by 29 out of the 765 s...
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Article
Effects of stand density on the productivity ofCryptomeria japonica male flowers
We have studied male flower production and relative illumination in clonal sugi (Cryptomeria japonica) forests planted at densities of 1,500/ha, 3,000/ha, and 5,000/ha, to clarify the effects of forest management...
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Article
Inheritance of the trait of male sterility inCryptomeria japonica
Matings of male-sterileC. japonica and fertile eliteC. japonica, as well as backcross seedlings of male-sterile trees, were carried out to clarify the genetic trait of male sterility of theC. japonica. The seeds ...
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Article
Cytological and genetical studies on male sterility inCryptomeria japonica D. Don
Genetic male sterility is a useful trait in plant breeding, especially in angiosperm crops such as corn, onion and carrot. We found a male sterile sugi (Cryptomeria japonica D. Don) tree in Toyama, Japan. Pollen ...