(C) Gibberellins were first discovered by Japanese scientists $E. Kurosawa$ from the rice seedlings infected with the fungus $Gibberella$ $fujikuroi$.

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(C) Gibberellins were first discovered by Japanese scientists $E. Kurosawa$ from the rice seedlings infected with the fungus $Gibberella$ $fujikuroi$. This fungus is a parasitic ascomycete that causes 'bakanae' (foolish seedling) disease in rice plants. Therefore,the correct option is $C$.

Class 11 Biology Plant Growth and Development Gibberellins

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The gibberellins are plant growth hormones. They cause elongation of stems. Gibberellin was first isolated by Japanese workers from

AIEEE 2003 All AIEEE

A
Endosperm of barley
B
Sporophyte of moss
C
$A$ parasitic fungus
D
Scutellum of rice

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Plant Growth and Development

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Gibberellins

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The gibberellins are plant growth hormones. They cause elongation of stems. Gibberellin was first isolated by Japanese workers from

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To make stored food available for germination,with which hormone should a seed be treated?

Which enzyme is synthesized by gibberellins to break seed dormancy in wheat and barley?

During seed germination,its stored food is mobilized by

All $GAs$ are .............

The process of increasing the length of internodes prior to flowering is called $........$.

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