Influence of growth regulators on nutrient concentrations, nutrient uptake and quality parameters of cluster bean varieties

Abstract

A field experiment was conducted during the season kharif 2008 and 2009 to find out response of cluster bean varieties to growth regulators. RGC-936 recorded in significantly higher amount of total nitrogen (N), phosphorus (P) uptake and protein content during both the years over RGC-1017, RGC-1003 and RGC-1002. Seed + foliar application with thiourea @ 500 ppm recorded maximum total N and P uptake. Quality parameters viz. gum and protein in seed, were found highest in cultivar RGC 1017 which was at par with RGC-1002 and RGC-1003 and all these three varieties were significantly superior over RGC 936. Variety RGC-1017 recorded 15.3% higher gum content over RGC-936. Among the growth regulators. maximum gum content in seed were recorded with the seed + foliar application of thiourea @ 500 ppm. However, it was found statistically at par with the seed + foliar application of TGA @ 100 ppm and significantly superior to rest of the treatments in current study.Key words: Clusterbean, Cultivars, Nutrient content, Quality, TGA, Thiourea, Uptake. INTRODUCTIONGuar (cluster bean) is generally grown in India as fodder, feed, food and cover crops mainly in complex, diverse, risky and under-invested rainfed (arid and semi-arid) regions. However, in recent past a vast range of value added products or derivatives appeared in the market with more than one lakh patents globally and, thus, guar has now become an important commercial crop of Rajasthan, Haryana and Gujarat. India contributes about 80% to global guar seed production. Guar gum is extracted from the seed and its derivatives have very unique properties of solubility over wide range of temperatures, as hydrocolloid, emulsifier, thickener, stabilizer, coating/filming agent, binder, thyrotrophic, non-ionic, cross-linking, gelling, preservation, non-calorific fibrous food etc. Guar gum and its derivatives are critical ingredients in about 100 products or processes in 21 sectors of food, petroleum/gas exploration, explosives, pharmaceuticals, cosmetics, paper industry, textile, paints/ distempers, and aerial firefighting etc. Rajasthan alone contributes to 83% area and 65% to the production in India.

Potential Mechanisms of Abiotic Stress Tolerance in Crop Plants Induced by Thiourea

“…In another study, TU (500 ppm) seed treatment and foliar application improved nitrogen (15%) and phosphorus (21%) uptake in cluster bean. Improved nutrient uptake enhanced the yield and quality (higher protein and gum content) of cluster bean under drought conditions (Meena et al, 2016). Beside root proliferation, evidence suggests that TU imparts changes in root physiology and biochemistry leading to better uptake of nutrients (N, P, K), resulting in an increase in yield and net-economic return (56%) under drought conditions in urdbean ( Vigna mungo ) (Choudhary et al, 2017).…”

Response of sowing dates and bio regulators on yield of clusterbean under current climate in alley cropping system in eastern U.P., India

“…Cluster bean is grown in India on 2.20 Mha and produces of 0.60 million Mg (Singh et al, 2013), with a low national average yield of merely 273 kg/ha. Climate trends globally and in India have undergone moderate changes because of the anthropogenic emissions of greenhouse gases (Lal, 2012;Meena et al, 2016). During the last several decades, an increasing trend has been observed in air temperatures in most of the major cropping regions around the world (Meena et al, , 2014aEasterling and Wehner, 2009).…”

A Study on Atomic Spectroscopic Term Symbols for Nonequivalent Electrons of (n-1) d 1 s 1 p 1 Configuration Using RussellSaunders Coupling Scheme

“…Ford 2 configuration, the number of microstates is given by (5) The number of microstate [8] increase with increase in the number of electrons in orbital but in the nonequivalent electronic system the number of microstates are much greater than the similar equivalent electronic system and the coupling of angular momentum of nonequivalent electrons is straight forward than for equivalent electrons [9]. The equivalent electrons are those which have same values of l such as np 2 , nd 4 , nf 2 , etc.…”

“…The equivalent electrons are those which have same values of l such as np 2 , nd 4 , nf 2 , etc. In the present work, the atomic terms have been determined for nonequivalent electrons [10]of (n-…”