SCI-TECH & AGRI

Green brinjal with high yield potential

By Our Agriculture Correspondent

The new brinjal variety can be grown all through Tamil Nadu in April and October.

The new brinjal variety can be grown all through Tamil Nadu in April and October.  

SCIENTISTS AT the Horticultural Research Station (HRS) of the Tamil Nadu Agricultural University (TNAU) at Pechiparai in Kanyakumari district have developed a long green brinjal variety with a high yield potential.

This improved variety has been recently released for commercial cultivation by TNAU, Coimbatore, as `PPI (B) brinjal'. PPI (B) brinjal is a pure line selection from `Karungal local' of Kalkulam taluk in Kanyakumari district.

This is one among the 17 accessions maintained at the HRS, Pechiparai. It is a high yielding long green variety suitable for cultivation in all the brinjal growing tracts of Tamil Nadu, especially Kanyakumari district, according to scientists.

It can be successfully grown in both irrigated and rainfed conditions in Kanyakumari district. It has been found to do well in a wide range of soil and climatic conditions.

The new variety is an erect plant, with semi-spreading and determinate habit. It can grow to about 140 cm in height. Borne as solitary fruits, the oblong green fruits have minimum seeds, and no bitterness.

The fruits have good cooking quality. Each plant will bear 30 to 35 fruits. About 15 harvests can be had from this variety in a duration of 185 days, and the average yield of 45 to 50 tonnes per hectare can be got from the variety.

The variety is moderately tolerant to Fusarial wilt disease. It recorded a 23 per cent higher yield than the ruling brinjal variety Arka Shirish. The fruit quality is good with less fibre, high protein, high vitamin A and vitamin C content than Arka Shirish.

With its good cooking and storing quality, this high yielding brinjal variety has won the admiration of the consumers. This variety has been found highly suitable for commercial cultivation and also for raising in the home gardens.

This variety will do well in well drained loamy soil enriched with organic manure. It can be grown in April-May and October-November seasons. About 400 g seeds will be needed to raise nursery to cover a hectare of main field.

The seeds should be ideally treated 4 g of Pseudomonos fluorescens and Azosprillum at 100 g per kg seed. About 100 sq. metre elevated nursery bed is sufficient to prepare seedlings to cover a hectare of main field. The seedlings should be retained in the nursery for 40 to 45 days. The main field should be thoroughly worked to fine tilth and thrown into ridges and furrows 60 cm apart.

The seedlings should be planted on the sides of the ridges at an espacement of about 30 cm. Liberal quantities of well ripe organic manure should be sprinkled along with about 50 kg each of nitrogen and phosphorus and 30 kg potash per hectare.

Roughly 200 kg of powdered neem cake should be added and 2 kg of Azospirillum should be applied for each hectare for getting good results from this variety.

A second round of 50 kg nitrogen should be applied when the plants are 30 days old in the main field. The variety responds well to regular irrigation and sound plant protection strategies using the botanical insecticides and beneficial microbes and friendly insects.

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