Define - Node, Internode, Axil

Green leaf-like one internode long stem branches are called

[A] : Thorns may bear nodes and internodes in some plants. [R] : Thorns are modified stems as they arise in the axil of a leaf or at the apex a branch.

A stem with distinct solid nodes and hollow internodes is

A stem with jointed stem is called culm. It has distinct nodes and internodes. It is a characteristic of

A plant having 24 cm long internodes is crossed with a plant having 12 cm long internodes. The hybrids have 18 cm long internodes due to

In sugarcane, length of internodes invariable due to

_____produce elongation of stem by increasing the length of internodes in plants.

Match the lists {:(,"I",,"II"),((a),"Food storing condensed branches develop in the axils of bracts on the inflorescence",1.,"Oxalis"),((b),"A group of bulbils arises from ground level at the apex of tuberous root ",2.,"Bryophyllum"),((c),"Bulbils develop from axils of leaves ",3.,"Agave americana "),((d),"One or more internodes of stem stores food and water, becomes tuberous ",4.,"Discorea bulbifera"),(,"",5.,"Cocoloba"):}

Which of the following statements is/are true (A) It the stem is jointed with solid nodes and hollow internodes, it is called caudex (B) In Tridax the stem is decumbent (C) Corn is a condensed form of rhizome growing more or less in vertical direction (D) Sucker is an underground modification of stem (E) Biparous type of cymose branching is seem in Saraca.

Growth of internode of the short node plant genetically is done by ____hormone.