Vol. 7, Issue 5 (2019)
Study on association of yield and yield attributes with grain yield in sorghum genotypes under post flowering moisture stress conditions
Author(s): D Dev Kumar, Dr. V Padma, Dr. HS Talwar and Dr. Farzana Jabeen
Abstract: An experiment entitled “Physiological basis of key adaptive traits associated with post flowering drought tolerance in rabi Sorghum†was conducted during rabi 2012-13 at research farm of Directorate of Sorghum Research, Rajendranagar, Hyderabad. The experiment was laid out in a split plot design, replicated thrice, with 10 Sorghum genotypes as main treatment (Well Watered (WW) and Water Stress (WS) conditions) and with 10 genotypes are sub treatments CRS 4, CRS 19, CRS 20, PEC 17, CSV 18, M 35-1, Phule chitra, Phule moulee, EP 57 and CRS 1). Among the yield components, panicle length, 1000 grain weight and harvest index (HI) are significantly and positively correlated with grain yield and therefore it can be ascribed that the genotypes, which partitioned more assimilates into economic parts and in which grain filling is high, recorded more grain yield. panicle length, 1000 seed weight, HI and registered higher grain yield (1137 kg ha-1) and maintained its superiority over the other genotypes followed by M 35-1 (1134 kg ha-1) and CSV 18 (1082 kg ha-1). The cultivar CRS 1 recorded significantly least grain yield (824 kg ha-1) and had lowest values for all the above parameters. The overall yield reduction due to moisture stress during the post flowering drought was 10 per cent and it ranged between 8-12 per cent among the genotypes. This indicates that the genotypes used in the present study are relatively drought tolerant. The genotypes CSV 18 and Phule moulee registered least yield reduction (8 per cent) in grain yield due to post flowering drought followed by PEC 17 and M 35-1 which registered 9 per cent yield reduction. However, the overall grain yield of PEC 17 and M 35-1 was more than CSV 18 and Phule moulee even under moisture stress conditions.
Pages: 1410-1414 | 253 Views 52 Downloads
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How to cite this article:
D Dev Kumar, Dr. V Padma, Dr. HS Talwar, Dr. Farzana Jabeen. Study on association of yield and yield attributes with grain yield in sorghum genotypes under post flowering moisture stress conditions. Int J Chem Stud 2019;7(5):1410-1414.
