Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique

By applying soil injection technique using carrier-free 32P as a tracer in 'Robusta' banana (Musa sp. 'AAA') planted at 1.5m x 1.5m spacing, during the 8th leaf stage of growth, 52.04 and 62.96% of active roots were present at 25cm across and 15cm depth, respectively. At the 16th...

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Autores principales:	S C Kotur, V Ramachandran
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2015
Materias:	banana high-density planting inter-plant root competition tracer technique 32p Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/2275395e6c3c4ea7900e7222821d6c06
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spelling	oai:doaj.org-article:2275395e6c3c4ea7900e7222821d6c062021-12-02T12:52:11ZRoot Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique0973-354X2582-4899https://doaj.org/article/2275395e6c3c4ea7900e7222821d6c062015-12-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/141https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899By applying soil injection technique using carrier-free 32P as a tracer in 'Robusta' banana (Musa sp. 'AAA') planted at 1.5m x 1.5m spacing, during the 8th leaf stage of growth, 52.04 and 62.96% of active roots were present at 25cm across and 15cm depth, respectively. At the 16th leaf stage, only 40.5% of active roots were traced at 25cm across, and root activity increased at wider distances and deeper layers. At flower-initiation stage, a significant gain in root activity was seen at 45cm depth. Distance-wise distribution, however, did not change appreciably. At the shooting stage, 46.89% and 43.98% of the active roots were present closest to the pseudostem (25cm distance) and soil surface (15cm), respectively. However, the greatest depth (45cm) gained active roots (38.51%) at shooting-stage, creating an hour-glass pattern of root distribution, mainly owing to migration of roots from the surface (15cm deep) soil. However, a strong presence of active roots persisted close to the base of the plant, and in the surface-soil. A small proportion (>1%) of phosphorus applied to the main plant was absorbed by the orthogonal neighbour located at 1.5m distance, indicating practically insignificant competition with its closest neighbour. None of the diagonal neighbours located farthest (at 2.1m distance from the main plant) showed any activity of the tracer indicating that the root competition with the main plant was absent. Results indicate that a spacing of 1.5m × 1.5m in high-density planting of 'Robusta' banana raised in sandy-loam is optimum, with practically no untoward competition from the root for nutrients applied to each plant.S C KoturV RamachandranSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlebananahigh-density plantinginter-plant root competitiontracer technique32pPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 10, Iss 2, Pp 250-253 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	banana high-density planting inter-plant root competition tracer technique 32p Plant culture SB1-1110
spellingShingle	banana high-density planting inter-plant root competition tracer technique 32p Plant culture SB1-1110 S C Kotur V Ramachandran Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
description	By applying soil injection technique using carrier-free 32P as a tracer in 'Robusta' banana (Musa sp. 'AAA') planted at 1.5m x 1.5m spacing, during the 8th leaf stage of growth, 52.04 and 62.96% of active roots were present at 25cm across and 15cm depth, respectively. At the 16th leaf stage, only 40.5% of active roots were traced at 25cm across, and root activity increased at wider distances and deeper layers. At flower-initiation stage, a significant gain in root activity was seen at 45cm depth. Distance-wise distribution, however, did not change appreciably. At the shooting stage, 46.89% and 43.98% of the active roots were present closest to the pseudostem (25cm distance) and soil surface (15cm), respectively. However, the greatest depth (45cm) gained active roots (38.51%) at shooting-stage, creating an hour-glass pattern of root distribution, mainly owing to migration of roots from the surface (15cm deep) soil. However, a strong presence of active roots persisted close to the base of the plant, and in the surface-soil. A small proportion (>1%) of phosphorus applied to the main plant was absorbed by the orthogonal neighbour located at 1.5m distance, indicating practically insignificant competition with its closest neighbour. None of the diagonal neighbours located farthest (at 2.1m distance from the main plant) showed any activity of the tracer indicating that the root competition with the main plant was absent. Results indicate that a spacing of 1.5m × 1.5m in high-density planting of 'Robusta' banana raised in sandy-loam is optimum, with practically no untoward competition from the root for nutrients applied to each plant.
format	article
author	S C Kotur V Ramachandran
author_facet	S C Kotur V Ramachandran
author_sort	S C Kotur
title	Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
title_short	Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
title_full	Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
title_fullStr	Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
title_full_unstemmed	Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique
title_sort	root activity distribution and inter-plant root competition in 'robusta' banana (musa sp., 'aaa') under high-density planting determined by tracer technique
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2015
url	https://doaj.org/article/2275395e6c3c4ea7900e7222821d6c06
work_keys_str_mv	AT sckotur rootactivitydistributionandinterplantrootcompetitioninrobustabananamusaspaaaunderhighdensityplantingdeterminedbytracertechnique AT vramachandran rootactivitydistributionandinterplantrootcompetitioninrobustabananamusaspaaaunderhighdensityplantingdeterminedbytracertechnique
_version_	1718393611771445248

Root Activity Distribution and Inter-plant Root Competition in 'Robusta' Banana (Musa Sp., 'AAA') under High-Density Planting Determined by Tracer Technique

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