ISSN:
1435-0653
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Helianthus annuus L.) have not been systematically screened as a source of new favorable alleles for enhancing hybrid performance. The objective of this study was to assess the merits of a sample of three hybrids (HA383 × RHA373, HA372 × RHA377, and HA89 × RHA373). The net gain of favorable alleles and several other statistics were estimated from the seed yield means of 14 sterility maintainer (B) lines, four fertility restorer (R) lines, 81 B × B hybrids, and 42 B × R hybrids in field tests at Corvallis, OR and Casselton, ND in 1996 and 1997. HA383 × RHA373, HA372 × RHA377, and HA89 × RHA373 were the highest-yielding hybrids from three heterotic patterns. HA383 × RHA373 had the highest seed yield across years and locations (3285 kg ha-1) among all hybrids. The most promising donors for increasing the seed yield of HA383 × RHA373 were HA822, HA851, and HA372. Similarly, the most promising donors for increasing the seed yield of HA372 × RHA377 were HA821 and HA384, and the most promising donors for increasing seed yield of HA89 × RHA373 were HA383, HA384, and HA821. The elite gene pool of sunflower seems to be a rich source of favorable alleles for increasing hybrid seed yields.
Type of Medium:
Electronic Resource
