30.01.2015 Views

(IPPM) in Vegetables - Vegetableipmasia.org

(IPPM) in Vegetables - Vegetableipmasia.org

(IPPM) in Vegetables - Vegetableipmasia.org

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Resource Manual on <strong>IPPM</strong> <strong>in</strong> Vegetable<br />

World Education Philipp<strong>in</strong>es, Inc.<br />

This family of plants has a wide variety of economic uses, most importantly as a<br />

vegetable crop. Most cultivated edible varieties <strong>in</strong>clud<strong>in</strong>g Brussels sprouts, cabbage,<br />

broccoli, and cauliflower were developed by plant breeders from a s<strong>in</strong>gle species,<br />

Brassica oleracea. Many crucifers are used as condiments and garnishes such as mustard<br />

and cress. Important crops are propagated from seed. Only m<strong>in</strong>or crops such as<br />

watercress, horseradish and sea kale are vegetatively propagated. Although desired by the<br />

market <strong>in</strong> the case of crops such as mustard, radish and horseradish, crucifers may also be<br />

responsible for toxic manifestations when used as animal feed or <strong>in</strong> human nutrition.<br />

Recently, some cultivated varieties such as broccoli have been thought to help prevent<br />

cancer. Cruciferous oil seeds rank fifth <strong>in</strong> importance beh<strong>in</strong>d soybeans, cottonseeds,<br />

groundnut and sunflower seed. Animal feeds are provided by cruciferous crops <strong>in</strong> the<br />

form of silage, seed meal, forage crops (grazed <strong>in</strong> the field) and root fodder (used for<br />

w<strong>in</strong>ter feeds).<br />

The Brassicaceae or Cruciferae Family conta<strong>in</strong>s both annual and perennial herbs but<br />

rarely small shrubs. Leaves are usually alternate, exstipulate, with unicellular, simple or<br />

branched hairs. The basic floral structure is highly characteristic and constant, conta<strong>in</strong><strong>in</strong>g<br />

four sepals, four petals, six stamen (four long and two short, a condition called<br />

tetradynamous), and an ovary with two parietal placenta. The form of the cruciferous<br />

flower unites the group more perhaps than any other character. This is always regular,<br />

perfect, and cruciform, especially for the cole crops such as broccoli. The older family<br />

name "Cruciferae" derives from the Maltese cross shape of the four petals. As <strong>in</strong> most of<br />

the crucifers, poll<strong>in</strong>ation is accomplished by nectar secretions <strong>in</strong>to the bases of the<br />

pouched sepals which attracts <strong>in</strong>sects and promotes cross-poll<strong>in</strong>ation; however, selfpoll<strong>in</strong>ation<br />

of the flowers is a frequent occurrence.<br />

C. CUCURBITACEAE FAMILY<br />

The Cucurbitaceae, commonly known as the gourd<br />

or melon family, <strong>in</strong>cludes a number of popular and<br />

important vegetables. The other crops of<br />

Cucurbitaceae are watermelon, summer squash,<br />

w<strong>in</strong>ter squash, and pumpk<strong>in</strong>. Among m<strong>in</strong>or crops are<br />

citron, gherk<strong>in</strong>, and chayote. The last crop is<br />

propagated by large s<strong>in</strong>gle-seeded fruits and is of no<br />

importance to the seed trade. The family is<br />

characterized briefly by the rather vigorous leafy<br />

prostrate v<strong>in</strong>e habit, although some, notably the<br />

summer squash, have bush-type plants. The<br />

<strong>in</strong>florescence and flowers, although dist<strong>in</strong>ct for each<br />

vegetable, are nevertheless similar to each other <strong>in</strong><br />

color, general form, and arrangement of their parts.<br />

The Cucurbitaceae are mostly prostrate or climb<strong>in</strong>g<br />

herbaceous annuals compris<strong>in</strong>g about 90 genera and<br />

700 species that are further characterized by<br />

commonly hav<strong>in</strong>g 5-angled stems and coiled tendrils.<br />

The leaves are alternate and usually palmately 5-<br />

59

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!