RPSC Agriculture Research Officer (Horticulture) - 2022

While the vast majority of leguminous seeds are non-endospermic (exalbuminous), Fenugreek (Trigonella foenum-graecum) and clusterbean are distinctive endospermic legumes storing food as galactomannan gum inside a persistent endosperm layer.

• Fenugreek: Possesses a well-developed, persistent mucilaginous endosperm surrounding the embryo to store food reserves.
• Chickpeas: Classical exalbuminous pulse where food reserves are entirely stored in fleshy cotyledons.
• Soybean: Non-endospermic legume seed.
• Pigeon pea: Non-endospermic pulse seed.

Vellaikolumban is a polyembryonic South Indian mango rootstock uniquely recognized as an allotetraploid (and an exceptionally potent dwarfing rootstock imparting size reduction to scion varieties).

• Kurukkan: Polyembryonic diploid rootstock tolerant to salt stress.
• Olour: Polyembryonic diploid rootstock.
• Nekkare: Polyembryonic rootstock tolerant to salinity.
• Vellaikolumban: Natural allotetraploid rootstock used in mango research for extreme dwarfing and vigor control.

Salvadora oleoides and S. persica (Pilu / Khara Jhal) are evergreen, deep-rooted halophytic xerophytes forming dense bushy crowns ideal for shelterbelts against desert sandstorms, while their foliage provides highly palatable, mineral-rich fodder for camels.

• Both statement I and statement II are true: Pilu is highly effective in stabilizing dunes and mitigating wind erosion, and its leaves are celebrated as nutritious camel feed.
• Both statement I and statement II are false: Incorrect evaluation.
• Statement I is true but statement II is false: Overlooks camel grazing value.
• Statement I is false but statement II is true: Overlooks windbreak utility.