Vol. 11, Issue 7 (2022)

Author(s):
G Sandeep, Dr. U Vijaya Bhaskar Reddy, Dr. PV Ramesh Babu, Dr. P Kavitha and Dr. M Srinivasa Reddy

Abstract:
A field investigation on “Cultivar and sowing date effect on productivity of redgram (Cajanus cajan L.)” was conducted during kharif, 2019 at college farm, Agricultural College, Mahanandi of Acharya N. G. Ranga Agricultural University. The experimental site was sandy loam soil and it was neutral in reaction with a pH of 7.38, EC of 0.20 ds m^-1. The experiment was laid out in randomized block design with factorial concept (FRBD) having twelve treatments and three replications. The experiment comprised three redgram cultivars viz., C₁: LRG-52; C₂: PRG-176 and C₃: ICPL-87119 and four sowing dates viz., D₁: 2^nd FN of June; D₂: 1^st FN of July; D₃: 2^nd FN of July and D₄: 1^st FN of August. Among the cultivars tried, C₃ (ICPL-87119) recorded significantly highest plant height (287.0 cm), number of branches plant^-1 (21.1), dry matter accumulation (7698 kg ha^-1) and leaf area index (3.49), seed yield (1405 kg ha^-1) and haulm yield (5352 kg ha^-1) than other cultivars, which is on par with C₁ (LRG-52) at harvest.. The highest harvest index (15.51%) was found in C₂ (PRG-176) than other cultivar, which is on par with C₃ (ICPL-87119). Among the sowing dates, D₁ (2^nd fortnight of June) produced significantly higher plant height (294.2 cm) and number of branches plant^-1 (22.1), which was however on par with D₂ (1^st fortnight of July). Dry matter accumulation (7684 kg ha^-1), leaf area index (3.32) seed yield (1432 kg ha^-1), haulm yield (5342 kg ha^-1) and harvest index (15.66%) recorded significantly higher in the crop sown during D₂ (1^st fortnight of July), which was however on par D₁ (2^nd fortnight of June).