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AbstractSorghum hybrid seed production involves restorer (R) and maintainer (B) lines as pollen donors. In the Mexican Highlands, R‐lines produce more viable pollen than B‐lines. The influence of this characteristic on stigma receptivity and seed set (seeds/flowers) of A‐lines is unknown. Six pairs of A/B lines and four R‐lines were sown. In the A‐lines, length of stigma, style and...
Ethical, political, and technical aspects of the protection of plant-related innovations are currently being much debated. This article reviews the existing laws and treaties providing or affecting protection for such innovations, including the US Plant Patent Act of 1930, the UPOV Convention, TRIPS agreement and the European Regulation on the Protection of Plant Varieties. After looking at some landmark...
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