Wheat variety prefixes and breeding institutes:
HD stands for "Hybrid Delhi", designating wheat cultivars bred and released by the ICAR-Indian Agricultural Research Institute (IARI), New Delhi (e.g., HD-2967, HD-3086, HD-3226, HD-3385).
DBW: ICAR-IIWBR, Karnal (Directorate of Bread Wheat / Karnal).
WH: CCSHAU, Hisar.
PBW: PAU, Ludhiana.

Groundnut (Arachis hypogaea L.), belonging to the family Fabaceae (subfamily Papilionaceae), is commonly known by several vernacular and English names:
Peanut (most common in North America and international trade)
Monkey nut (widely used in the UK)
Earthnut / Goober
It is geocarpic, developing its underground pods after aerial flowering through peg elongation.

Planting methods in crops:
Double transplanting is a cultural practice specific to Rice (paddy), particularly in flood-prone or waterlogged areas where seedlings are transplanted into a secondary nursery before final field transplanting.
Sugarcane planting methods include:

• Partha method: Developed by S.V. Parthasarathy (1961) for waterlogged/coastal heavy soils in Tamil Nadu and Andhra Pradesh, using 3-budded setts planted in a slanting position ($45^\circ$) on ridges/raised beds.
• Ring pit method: Circular pits (90 cm diameter, 45 cm depth) for high yield.
• Rayungan / Seblang method: Indonesian nursery technique for rapid multiplication of seed cane.