A Meghalaya scheme aimed at boosting horticulture production is:

Mission Organic Value Chain Development for North East Region (MOVCDNER)
Paramparagat Krishi Vikas Yojana
Rashtriya Krishi Vikas Yojana
Pradhan Mantri Kisan Samman Nidhi

The correct answer is: a) Mission Organic Value Chain Development for North East Region (MOVCDNER).

MOVCDNER is a scheme launched by the Government of India in 2015 to promote organic farming in the North East region. The scheme aims to increase the production of organic crops, improve the quality of organic produce, and develop the organic value chain in the region.

The scheme provides financial assistance to farmers for adopting organic farming practices, setting up organic processing units, and marketing organic produce. The scheme also provides training and extension support to farmers.

MOVCDNER has been successful in promoting organic farming in the North East region. The area under organic cultivation has increased significantly since the launch of the scheme. The quality of organic produce has also improved. The scheme has also helped to develop the organic value chain in the region.

The other options are incorrect because they are not schemes aimed at boosting horticulture production in Meghalaya.

b) Paramparagat Krishi Vikas Yojana (PKVY) is a scheme launched by the Government of India in 2015 to promote traditional agriculture practices. The scheme aims to increase the production of traditional crops, improve the quality of traditional produce, and develop the traditional value chain.

c) Rashtriya Krishi Vikas Yojana (RKVY) is a scheme launched by the Government of India in 2007 to promote agricultural development. The scheme aims to increase the production of crops, improve the productivity of land, and develop the agricultural infrastructure.

d) Pradhan Mantri Kisan Samman Nidhi (PM-KISAN) is a scheme launched by the Government of India in 2019 to provide financial assistance to farmers. The scheme aims to provide income support to farmers and improve their livelihood.