Introduction
摘要
Okra (Abelmoschus esculentus L. Moench) is an important vegetable crop belonging to the family Malvaceae. Okra is grown throughout the tropical and subtropical regions of the world and in the warmer parts of the temperate zone. India is the largest producer of okra globally, contributing more than 72% (six million tonnes) from an area of 0.5 million hectares (NHB 2020). Okra has vast potential for earning foreign exchange, as it has a significant share in fresh vegetable exports (APEDA 2020). Tender pods of okra are used as a delicious vegetable. Its leaves, buds, and flowers are also consumed, especially in West Africa. It is used in canned, dehydrated, and frozen forms to a limited extent. Okra mucilage is used in food, nonfood, and medicinal products. Okra dry seeds are a rich source of oil (18–20%) and protein (20–23%). During the sugar production process, okra roots and stems are used to clean the cane juice. Okra development in India had taken pace with the release of Pusa Sawani, the first YVMV (Yellow Vein Mosaic Virus) resistant variety by Dr. Harbhajan Singh at IARI, New Delhi, in the late 50s. Pusa Sawani remained a ruling variety for several decades worldwide. Many private seed companies in India, like Mahyco, started their seed business with this variety. In the last few years okra has now become the number one crop in India as per seed revenue which is over 700 crores plus.