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Agricultural Reviews
Year : 2000, Volume : 21, Issue : 2
First page : ( 97) Last page : ( 103)
Print ISSN : 0253-1496.

Knob pattern and its relationship with quantitative characters in maize: A review

Mandal S.S.*, Akhtar S.A., Verma D.K.1

Maize Section, T.C.A., Dholi, Muzaffarpur, Bihar - 848 121, India.

*Corresponding author.

1Division of Plant Breeding, ICAR (RC) NEH, Umiam, Meghalaya-793 103.

Abstract

The present review on knob pattern and its quantitative character relationship in maize (Zea mays L) has been written covering the research work done on its various aspects. The topics included, pachytene analysis, global distribution of knob (knobs in Indian maize; knobs in exotic maize and knobs in relation to altitude); combining ability in relation to knob; gene action and degree of dominance for knob, heterosis in relation to knob number and grain yield, knob inheritance, cytoplasmic effects, correlation studies among knob and agronomical traits in maize in rainfed. Knob and its relation with other aspects have been critically reviewed.

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