Establishment of Seed Production Area of Tectona grandis Linn. f. in Gujarat (original) (raw)

Annals of Arid Zone, 2017

Abstract

Teak is a slow growing species and any tree improvement programme will take 15-40 years before the timber from the first rotation of improved planting stock is harvested. Ten to fifteen years may pass from the initiation of an improvement programme before improved seed is available. Developing seed production areas (SPAs) is one of the first steps in tree improvement programme that can be used to obtain genetically improved seed for immediate planting but it is usually for the short term in nature. Though seeds obtained from this method do not yield large volume of genetic gain, it sometimes greatly improves tree quality. After survey of nearly 940ha plantations of Tectona grandis at 15 locations in Gujarat, 85ha at six sites were converted into seed production areas (SPAs) after inter-comparing with various other seed stands. After culling of inferior trees from these six stands, the average height, clear bole, girth at breast height, diameter at breast height and volume were shifted towards the higher side in all the stands. Seeds collected from these seed production area performed better in seed attributes than un-culled stands.

V P Tewari hasn't uploaded this paper.

Let V P know you want this paper to be uploaded.

Ask for this paper to be uploaded.