साधन चिह्नित: Vernalization
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20-01-2013 Currently, seeds of all carrot varieties grown in hot sub-Saharan Africa are imported from regions with temperate climates such as Europe and USA. It has not been easy to produce carrot seeds in hot Africa, because carrots require exposure to cold temperatures (vernalization) to induce flowering....
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20-01-2010 Carrots are normally biennial (life cyclecompleted the second year after planting seeds) and require a period of cold temperatures (vernalization) for flowering and subsequent seed production to occur. So any variety that readily sets seed in a single growing season in warm climates would be of...