taproot

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taproot

a primary ROOT structure in which one main root forms the major part of the underground system. Taproots are often swollen, serving as storage organs of perennation. Many vegetable crops, such as carrot, swede, sugar beet, have taproots.
References in periodicals archive ?
Taproots of all cultivars reached the Al-toxic bottom layer 3 d after planting.
Correlation coefficients between fall dormancy and the five root traits showed that dormant PIs tended to have greater fibrous root mass, more lateral roots and smaller taproots than less dormant Pis (Table 3).
All plants along 2 m of row were harvested (including taproots from the first 20 cm of soil) and then sorted according to taproot diameter.
Cunningham and Volenec (1996) recently described three polypeptides present in alfalfa taproots that are extensively degraded after defoliation and in spring when shoot growth resumes.
solani could not be recovered from surface sterilized taproots suggesting infection had not yet taken place.
Figure 4-2 shows the three basic types of root systems: taproots, which have a main central root, and a storage taproot, which acts as a food reservoir to retain surplus food during the winter or adverse periods, fibrous roots, which have many roots of equal size.
Keep on top of weeds, especially those with deep taproots such as dandelions, which suck up precious moisture.
Some QTLs were associated with both basal and taproots, and others only with one or the other, while some QTLs for these traits were associated with specific RL and others were not.
This will encourage the plant to send strong taproots looking for moisture.
Harmon recommends sowing seeds directly into the ground, rather than in pots, because many wildflowers develop long taproots.