Heredity And Eugenics : a Course of Lectures Summarizing Recent Advances in Knowledge in Variation, Heredity, And Evolution ...
The book Heredity And Eugenics : a Course of Lectures Summarizing Recent Advances in Knowledge in Variation, Heredity, And Evolution ... was written by author William E William Ernest Castle Here you can read free online of Heredity And Eugenics : a Course of Lectures Summarizing Recent Advances in Knowledge in Variation, Heredity, And Evolution ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Heredity And Eugenics : a Course of Lectures Summarizing Recent Advances in Knowledge in Variation, Heredity, And Evolution ... a good or bad book?
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Webber, therefore, set himself the definite problem of producing a frost-resisting orange. He made several reciprocal crosses between the com- mon orange and the hardy but worthless trifoliate orange {Citrus trijoliata). Among the seedlings ob- tained, several have proven \'aluable. They form a new class of citrus fruits and have been called Citranges. Three of these varieties have been named the Rusk, the \Mllits, and the JNIorton. The Rusk, which is a hybrid of orange crossed by trijoliata, i...s a small fruit with a bitter tang like the pomelo. It makes excellent marmalade and preserves. The Willits, coming from a Fig. 55. — Intermediate character an Fi hybrid. At left, Nicoliana panicu- lala; in center, hybrid; at right, Niiolid)hi alula. Application of Biological Principles to Plant Breeding 129 cross of orange upon trifoliata, is a rough, but thin-skinned fruit, resembling an orange in appearance but a lemon in flavor. It is used as a condiment or for citrangeade. The Morton, coming from the same kind of cross as the Willits, is a large, juic}', almost seedless fruit, only slightly more bitter than the sweet orange.
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