Breeding new rice varieties for California: Effects of planting dates, seeding methods, low water temperatures
AuthorJoseph R. Thysell
Author AffiliationsJoseph R. Thysell is Research Agronomist, Crops Research Division, Agricultural Research Service, USDA, and Rice Breeder, California Cooperative Rice Research Foundation, Rice Experiment Station, Biggs.
Hilgardia 17(8):8-9. DOI:10.3733/ca.v017n08p8. August 1963.
ONE OF THE important considerations in the development of any new rice variety is its optimum range of seeding dates. The response to seeding date of present commercial rice varieties in California is well known, hut must be determined for new and introduced varieties. The commercial rice crop in California is sown directly into the water. In the past, however, the rice-breeding nurseries have been drilled rather than water-seeded. Recent studies have demonstrated that rice sown directly into the water produces higher yields than rice that is drilled.
Also in this issue:Rice — and research
Watergrass control in California rice fields
Rice varietal improvement in California
Rice plant injury: By invertebrate pests
Nitrogen fertilization of rice in California
Environmental influences on seed and oil characteristics of: Flax
Poor drainage and excess soil moisture encourage spread of: Avocado root rot
Cutting dates affect cooking quality of dark red kidney beans
Sod webworms and other lawn pests in California