Rdrl is the first monogenic dominant resistance gene described in the genus Rosa that is active against black spot of roses caused by Diplocarpon rosae, a facultative biotrophic parasitic ascomycete.... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.