Effect of Different Plant Spacings on Growth and Yield of Blackgram Varieties (Vigna mungo (L.) Hepper)

A field investigation entitled as Evaluation of blackgram varieties (Vigna mungo (L.) Hepper) under different plant spacings was conducted at Department of Agronomy, College of Agriculture, Badnapur. The experimental field was levelled and well drained. The soil was clay loam in texture, low in available nitrogen, medium in available phosphorus, very high in available potassium and alkaline in reaction. The environmental conditions were moderately congenial for normal growth and maturity of blackgram crop. The experiment was laid out in a Factorial Split plot Design with and four different spacings, three different varieties which comprised twelve treatment combinations. Each experimental unit was repeated three times 5.4 m x 5.0 m size in gross plot and it was of 4.5 m x 4.6 m size in net plot. Sowing was done on 14th July, 2015 with three varieties BDU-1, TAU-1 and AKU-15. Sowing was done by dibbling method with different spacings of 30 cm x 10 cm, 30 cm x 20 cm, 45 cm x 10 cm and 45 cm x 20 cm. The RDF was applied before sowing. The recommended cultural practices and plant protection measures were under taken as per recommendation. Among différent varieties of blackgram, BDU-1 (V1) produced significantly higher growth characters such as plant height, number of functional leaves, number of branches, number of pods per plant, number of seeds per pod, pod length, pod weight per plant, seed yield per plant and test weight (1000 seed weight g). The interaction effects of varieties x spacings were foundto be non-significant.