You need JavaScript to view this

Male sterility in chestnuts. A tentative plan for the seed propagation of fruit trees

Journal Article:

Abstract

A tentative plan was proposed for chestnuts based on their pollination system, male sterility and restoration. The studies on the male sterility of 1,063 cultivars and clones suggested that there were three types of male sterility. The first type (S-1) was characterized by antherless florets. In the second type (S-2), the catkins fell before anthesis, and the third type (S-3) appeared to develop normally in gross floral morphology, but the pollen grains were abnormal in shape and did not have germinating power. In an interspecific hybrid clone CS which belonged to S-1, fertility was restored in an open pollinated progeny. The use of CS and CSO-3 with its restored fertility, permitted the planning of breeding the chestnut hybrid cultivars propagated by seeds. The inbred clones with either male sterility or restorer genes are first bred mainly by back crossing with parents with favorable pollen. The clones are selected individually for early bearing, wasp and disease resistance, and restoration. Then, the hybrid seedling lines between male sterile and restorer inbreds are evaluated for homogenity in nut characters and tree habits. Next, the hybrid seedling lines selected will be examined for crop yield, vigor and cross compatibility. The superior seedling lines are  More>>
Authors:
Omura, Mitsuo; Akihama, Tomoya [1] 
  1. Fruit Tree Research Station, Yatabe, Ibaraki (Japan)
Publication Date:
Mar 01, 1982
Product Type:
Journal Article
Reference Number:
AIX-15-033280; EDB-84-095448
Resource Relation:
Journal Name: Gamma Field Symp.; (Japan); Journal Volume: 19
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CHESTNUTS; PLANT BREEDING; STERILITY; BIOLOGICAL RECOVERY; MALES; PLANNING; POLLEN; PROGENY; SEEDS; VEGETATIVE PROPAGATION; CLONING; FOOD; FRUITS; GAMETES; GERM CELLS; NUTS; RECOVERY; 560142* - Radiation Effects on Plants- Applications- (-1987)
OSTI ID:
6905175
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: GFSYA
Submitting Site:
HEDB
Size:
Pages: 77-88
Announcement Date:

Journal Article:

Citation Formats

Omura, Mitsuo, and Akihama, Tomoya. Male sterility in chestnuts. A tentative plan for the seed propagation of fruit trees. Japan: N. p., 1982. Web.
Omura, Mitsuo, & Akihama, Tomoya. Male sterility in chestnuts. A tentative plan for the seed propagation of fruit trees. Japan.
Omura, Mitsuo, and Akihama, Tomoya. 1982. "Male sterility in chestnuts. A tentative plan for the seed propagation of fruit trees." Japan.
@misc{etde_6905175,
title = {Male sterility in chestnuts. A tentative plan for the seed propagation of fruit trees}
author = {Omura, Mitsuo, and Akihama, Tomoya}
abstractNote = {A tentative plan was proposed for chestnuts based on their pollination system, male sterility and restoration. The studies on the male sterility of 1,063 cultivars and clones suggested that there were three types of male sterility. The first type (S-1) was characterized by antherless florets. In the second type (S-2), the catkins fell before anthesis, and the third type (S-3) appeared to develop normally in gross floral morphology, but the pollen grains were abnormal in shape and did not have germinating power. In an interspecific hybrid clone CS which belonged to S-1, fertility was restored in an open pollinated progeny. The use of CS and CSO-3 with its restored fertility, permitted the planning of breeding the chestnut hybrid cultivars propagated by seeds. The inbred clones with either male sterility or restorer genes are first bred mainly by back crossing with parents with favorable pollen. The clones are selected individually for early bearing, wasp and disease resistance, and restoration. Then, the hybrid seedling lines between male sterile and restorer inbreds are evaluated for homogenity in nut characters and tree habits. Next, the hybrid seedling lines selected will be examined for crop yield, vigor and cross compatibility. The superior seedling lines are finally selected, and the parental inbreds are grafted to be propagated for seed production orchards.}
journal = {Gamma Field Symp.; (Japan)}
volume = {19}
journal type = {AC}
place = {Japan}
year = {1982}
month = {Mar}
}