The book Agricultural Botany, Theoretical And Practical was written by author Percival John Here you can read free online of Agricultural Botany, Theoretical And Practical book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Agricultural Botany, Theoretical And Practical a good or bad book?
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4. Wild Radish {Raphanus Raphanistrum L.). 5. Black Mustard {Brassica nigra Koch.). WILD RADISH : JOINTED CHARLOCK 387 The siliques, which are from i to 3 inches long, have long slender beaks and are constricted above and below each seed (4, Fig. 123) ; they are indehiscent, but separate at the 'joints' into barrel-shaped pieces, each containing a single seed. The seeds are oval and reddish-brown in colour. The whole plant somewhat resembles ordinary Charlock, but may be distinguished from the ...latter by its erect sepals, usually veined petals, and smooth ' jointed ' siliques. Ex. 191. — Examine seeds of cabbage, swede and turnip in bulk, and indi- vidually with a lens. Compare them with seeds of black mustard and charlock. Taste all of them separately in the above order and note any differences in flavour. Ex. 192. — Grow seedlings of cabbage, swede turnip, black mustard, white mustard, and charlock. Note the shape of the cotyledons and first leaves of each. Ex. 193.— Compare the external appearance of a full grown swede with that of a white turnip.
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