Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest

Weak neck is the physiological weakening at the pedicel of Musa sp. fruit that causes individual fruits to be released prematurely from the hand. The level of resistance to weak neck is different among groups of Musa sp. with A and B genomes, diploid, triploid and tetraploid. Musa sp. cv. Rastali is...

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Main Authors: Putra, E. T. S, Wahab , Zakaria, Abdullah, Nur Ashikin Psyquay, Saleh, Ghizan
Format: Article
Language:English
English
Published: Asian Network for Scientific Information 2010
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/17628/
http://psasir.upm.edu.my/id/eprint/17628/1/weak_neck.pdf
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author Putra, E. T. S
Wahab , Zakaria
Abdullah, Nur Ashikin Psyquay
Saleh, Ghizan
author_facet Putra, E. T. S
Wahab , Zakaria
Abdullah, Nur Ashikin Psyquay
Saleh, Ghizan
author_sort Putra, E. T. S
building UPM Institutional Repository
collection Online Access
description Weak neck is the physiological weakening at the pedicel of Musa sp. fruit that causes individual fruits to be released prematurely from the hand. The level of resistance to weak neck is different among groups of Musa sp. with A and B genomes, diploid, triploid and tetraploid. Musa sp. cv. Rastali is AAB genome, but this cultivar is sensitive to weak neck. Sensitivity to weak neck comes from the two A genomes. There is high probability that application of Magnesium (Mg), Boron (B) and Silicon (Si) may solve weak neck on Musa sp. cv. Rastali. Magnesium application increases chlorophyll synthesis and photosynthesis rate. Assimilate accumulation on fruit cells triggers cell elongation and cell wall thickening, especially in the neck zone. Boron plays an important role in regulating hormone and enzyme levels in plants. Sufficient boron in plant tissue impedes synthesis and activities of Pectate Lyase (PL) and pectinmethylesterase (PME), thus decreasing cell wall hydrolysis. Plant cells and tissues become stronger with Si application. This is caused by the formation of silica-cuticle double layer on the epidermis. Low temperature along with low relative humidity during storage and ripening decreases the activities of PL and PME. The reduction of PL and PME activities result in a decrease in pectin degradation rate and cell wall hydrolysis, thus reducing the occurrence of weak neck.
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spelling upm-176282013-05-27T07:56:18Z http://psasir.upm.edu.my/id/eprint/17628/ Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest Putra, E. T. S Wahab , Zakaria Abdullah, Nur Ashikin Psyquay Saleh, Ghizan Weak neck is the physiological weakening at the pedicel of Musa sp. fruit that causes individual fruits to be released prematurely from the hand. The level of resistance to weak neck is different among groups of Musa sp. with A and B genomes, diploid, triploid and tetraploid. Musa sp. cv. Rastali is AAB genome, but this cultivar is sensitive to weak neck. Sensitivity to weak neck comes from the two A genomes. There is high probability that application of Magnesium (Mg), Boron (B) and Silicon (Si) may solve weak neck on Musa sp. cv. Rastali. Magnesium application increases chlorophyll synthesis and photosynthesis rate. Assimilate accumulation on fruit cells triggers cell elongation and cell wall thickening, especially in the neck zone. Boron plays an important role in regulating hormone and enzyme levels in plants. Sufficient boron in plant tissue impedes synthesis and activities of Pectate Lyase (PL) and pectinmethylesterase (PME), thus decreasing cell wall hydrolysis. Plant cells and tissues become stronger with Si application. This is caused by the formation of silica-cuticle double layer on the epidermis. Low temperature along with low relative humidity during storage and ripening decreases the activities of PL and PME. The reduction of PL and PME activities result in a decrease in pectin degradation rate and cell wall hydrolysis, thus reducing the occurrence of weak neck. Asian Network for Scientific Information 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17628/1/weak_neck.pdf Putra, E. T. S and Wahab , Zakaria and Abdullah, Nur Ashikin Psyquay and Saleh, Ghizan (2010) Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest. Journal of Agronomy, 9 (2). pp. 45-51. ISSN 1812-5379 http://scialert.net/qredirect.php?doi=ja.2010.45.51&linkid=pdf Banana - Analysis Bananas - Diseases - Genetic aspects 10.3923/ja.2010.45.51 English
spellingShingle Banana - Analysis
Bananas - Diseases - Genetic aspects
Putra, E. T. S
Wahab , Zakaria
Abdullah, Nur Ashikin Psyquay
Saleh, Ghizan
Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title_full Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title_fullStr Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title_full_unstemmed Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title_short Weak neck of Musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
title_sort weak neck of musa sp. cv. rastali : a review on it’s genetic, crop nutrition and post harvest
topic Banana - Analysis
Bananas - Diseases - Genetic aspects
url http://psasir.upm.edu.my/id/eprint/17628/
http://psasir.upm.edu.my/id/eprint/17628/
http://psasir.upm.edu.my/id/eprint/17628/
http://psasir.upm.edu.my/id/eprint/17628/1/weak_neck.pdf