RESPONSE OF POPLAR CLONES TO TRIACONTANOL APPLICATION AND DIFFERENT TYPES OF SOILS ON NUTRIENT CONTENT AND PHYSIOLOGICAL CHARACTER AT NURSERY STAGE

MITU BALA; AVTAR SINGH

Volume : IV, Issue : XI, November - 2015

RESPONSE OF POPLAR CLONES TO TRIACONTANOL APPLICATION AND DIFFERENT TYPES OF SOILS ON NUTRIENT CONTENT AND PHYSIOLOGICAL CHARACTER AT NURSERY STAGE

Mitu Bala, Avtar Singh

Abstract :

The present investigation was aimed to study the response of poplar clones toward physiological parameter and nutrient contents in leaves of Poplar grown on different types of soils and Triacontanol (growth regulator) application at nursery stage. The effect of two types of soils (Sandy loam and Sandy clay loam soil) and foliar application of growth regulator i.e. Triacontanol at 0ppm, 3ppm, 5ppm was investigated on nine poplar clones (PL–1, PL–2, PL–3, PL–4, PL–5, PL–6, PL–7, L–47/88, L–48/89). Various attributes were recorded at different interval of growth. The results of the study revealed that physiological characters like chlorophyll content, soil types showed non–significant results and growth regulator showed significant results. Triacontanol at 5ppm concentration showed higher chlorophyll content during July and October 2013 by 30.88 and 36.21 SPAD units respectively. For nutrient content analysis like nitrogen, potassium and phosphorus in leaves of poplar clones, growth regulator and different soil types showed significant results.