Among the oilseed plants, physic nut stands out for its yield potential and for the quality of its oil for biodiesel and biokerosene production. Currently, low seed yield, uneven fruit maturation and the lack of high yielding genotypes limit the viability of this crop. Here we evaluated the yield performance of a population, structured in 16 half-sib families, in the 2nd, 3rd and 4th years after planting (2009-11). Seed yield showed variability. The families maintained their relative performance over time. Contrary to expectations, seed yield was lower in the 4th year, probably due the increased competition between plants and leafhopper (Empoasca spp) incidence. Temporal yield stability and adaptability estimates indicated a trend toward maintaining plant superiority over time, and families 7 (1059 kg ha-1) and 12 (984 kg ha-1) showed the best stability and yield performance. Physic nut has the potential for greater yield gains.
展开▼
机译：在油料种子植物中，物理坚果因其潜在的产量以及其用于生物柴油和生物煤油生产的油的质量而脱颖而出。当前，低种子产量，不成熟的果实成熟和缺乏高产基因型限制了这种作物的生存能力。在这里，我们评估了种植后第二年，第三年和第四年（2009-11年）按16个半同胞家庭构成的种群的产量表现。种子产量显示出变异性。这些家庭会随着时间的推移保持相对表现。与预期相反，第4年种子产量下降，这可能是由于植物与叶蝉（Empoasca spp）发病率之间的竞争加剧所致。时间产量稳定性和适应性估计值表明了随着时间的推移保持植物优势的趋势，第7族（1059 kg ha-1）和12族（984 kg ha-1）显示出最佳的稳定性和产量表现。物理坚果具有提高产量的潜力。
展开▼
