A comparison of soil core sampling and minirhizotrons to quantify root development of field-grown potatoes

1996 ◽  
Vol 182 (2) ◽  
pp. 301-312 ◽  
Author(s):  
F. J. De Ruijter ◽  
B. W. Veen ◽  
M. Van Oijen
Keyword(s):  
Root Development ◽  
Soil Core ◽  
Core Sampling

Trifluralin—Systemic Insecticide Interactions on Seedling Cotton

Weed Science ◽  
1968 ◽  
Vol 16 (4) ◽  
pp. 430-432 ◽  
Author(s):  
H. Fred Arle
Keyword(s):  
Gossypium Hirsutum ◽  
Seedling Growth ◽  
Root Development ◽  
Inhibitory Effect ◽  
Soil Core ◽  
Systemic Insecticide ◽  
Treated Soil ◽  
Secondary Root ◽  
Greenhouse Experiments ◽  
Secondary Roots

In greenhouse experiments, soil-incorporated combinations of 0,0-diethyl S-[2-(ethylthio)-methyl]-phosphorodithioate (phorate) or 0,0-diethyl S-[2-(ethylthio)-ethyl]-phosphorodithioate (disulfoton) with a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) resulted in increased cotton (Gossypium hirsutum L.) seedling growth as compared to trifluralin used alone. This result apparently was due to the greater numbers of secondary roots in the zone of incorporation. Phorate was more effective than disulfoton in overcoming the inhibitory effect of trifluralin on secondary root development. A comparison of granular and emulsifiable phorate showed no advantage for either formulation. The combination of phorate and trifluralin in a 1-inch soil core, into which seeds of cotton were planted and surrounded by trifluralin-treated soil, also increased secondary root development as compared to using trifluralin alone.

Improvement of a human-portable underwater robot for soil core sampling

2014 ◽  
Author(s):  
Kenshirou Yokoi ◽  
Michitaka Kawabata ◽  
Sonoko Sakai ◽  
Sadao Kawamura ◽  
Norimitsu Sakagami ◽  
...  
Keyword(s):  
Underwater Robot ◽  
Soil Core ◽  
Core Sampling

Development of a human-portable underwater robot for soil core sampling

2013 ◽  
Author(s):  
Norimitsu Sakagami ◽  
Shinnosuke Sasaki ◽  
Michitaka Kawabata ◽  
Kenshirou Yokoi ◽  
Shinji Matsuda ◽  
...  
Keyword(s):  
Underwater Robot ◽  
Soil Core ◽  
Core Sampling

scholarly journals Fine Root Biomass in Pinus densiflora Stands using Soil Core Sampling and Minirhizotrons

2014 ◽  
Vol 103 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Seung Hyun Han ◽  
Tae Kyung Yoon ◽  
Saerom Han ◽  
Soon Jin Yun ◽  
Sun Jeoung Lee ◽  
...  
Keyword(s):  
Root Biomass ◽  
Fine Root ◽  
Pinus Densiflora ◽  
Fine Root Biomass ◽  
Soil Core ◽  
Core Sampling

A technique for estimating below-stump biomass of mature loblolly pine plantations

1995 ◽  
Vol 25 (2) ◽  
pp. 355-360 ◽  
Author(s):  
P.R. Kapeluck ◽  
D.H. Van Lear
Keyword(s):  
Loblolly Pine ◽  
Root Biomass ◽  
Lateral Roots ◽  
Pine Plantations ◽  
Soil Core ◽  
Diameter At Breast Height ◽  
Breast Height ◽  
Core Sampling ◽  
Large Trees ◽  
Diameter Classes

A technique was developed for estimating below-stump biomass of mature loblolly pine (Pinustaeda L.). The technique required complete excavation of only three trees and partial excavation (taproot only) of 12 others. A regression methodology for roots > 0.6 cm diameter and traditional soil-core sampling for roots < 0.6 cm diameter formed the main elements of the technique. Strong relationships were found (1) between biomass of three diameter classes of lateral roots and their proximal end diameter and (2) between diameter at breast height and estimated below-stump biomass for roots > 0.6 cm diameter. This technique should be useful for estimating root biomass of plantations of loblolly pine and may be effective for large trees of other species.

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