Effect of. phosphorus and plant-growth regulators on blackgram (Phaseolris mungo)

Abstract

The field experiment was conducted at randomized block design with 3 replications. Research farm of Rajasthan College of Agri- Blackgram variety T 9 was sown on 7 July culture, Udaipur, during the rainy season, 1990. (kharif) of 1990 to study the effect of plant- Application of 40 kg P,O,/ha significant- growth regulators and phosphorus on black- ly increased the number of podslplant, test gram (Phaseolus rnungo L.). The soil was weight, grain yield, stover yield and biologi- clay loam in texture and alkaline in reaction cal yield (Table 1). There was 22, 15 and (pH 8.2). The available P was 16.8 kgha in 17% increase in grain, stover and biological the soil. Ten treatment combinations com- yields, respectively with the application of - i prised 2 levels of P (0 and 40 kg P,O,/ha) 40 kg P,O,/ha over the control. These results and 5 levels of plant-growth regulators, viz. are in confirmity to the findings of 2 levels of morphactin (10 and 20 ppm) 2 Venkateshwarlu et al. (1988). The signifi- levels of etheral (120 and 240 ppm) and a cant effect of plant-growth regulators was water spray as control, were tried in observed on number of podslplant, test