Advertisements
Advertisements
Question
‘Endothecium is associated with dehiscence of anther’ Justify the statement.
Solution
The inner tangential wall develops bands (sometimes radial walls also) of cellulose (sometimes also slightly lignified). The cells are hygroscopic. The cells along the junction of the two sporangia of an anther lobe lack these thickenings. This region is called stomium. This region along with the hygroscopic nature of endothecium helps in the dehiscence of anther at maturity.
RELATED QUESTIONS
If one can induce parthenocarpy through the application of growth substances, which fruits would you select to induce parthenocarpy and why?
An eminent Indian embryologist is
The scar left by funiculus in the seed is
Ruminate endosperm is found in
Coelorhiza is found in
Parthenocarpic fruits lack
Mention the contribution of Hofmeister towards Embryology.
Highlight the milestones from the history of plant embryology.
‘The endosperm of angiosperm is different from gymnosperm’. Do you agree? Justify your answer.
Define the term Diplospory.
Why does the zygote divides only after the division of Primary endosperm cell?
Give examples for the Helobial endosperm.
What is endosperm? Explain the types.
Differentiate the structure of Dicot and Monocot seed.
During which of the following free nuclear divisions occurs in angiosperms?
Following figure represents monocot embryo Identify labels P, Q, Rand S.