Impact of Growth Regulating Substances in Improving Crop
Establishment and Harvest Index in
Blackgram and Greengram under Sodicity
-
Author:S. Nithila
p-ISSN:0024-9602, Vol:105, Issue:4-6, Page No:238
DOI:10.29321/MAJ.2018.000181
Abstract
Field study was conductedunder sodic soil conditions with two crop varieties of greengram
VBN (Gg) 2 andblackgram VBN (Bg) 6 with ten treatment combinations were employed by seed
treated with cowpea sprout extract (2%), GA3 50 ppm and ammonium molybdate 0.05 % followed
by foliar spray with ZnSO4
(0.5%), panchagavya(1%) and KCl(1%) along with control to improve
the establishment under sodicity stress. The foliar spray was imposed on 30th and 45th day after
sowing. Among the treatment combinations, seed treatment with cowpea sprout extract (2%)+
foliar spray of panchagavya (1%) treatment recorded higher grain yield (785.3 Kg/ha) and harvest
Index (29.6%) under sodicity compared with control. In blackgram also same treatmentrecorded
higher grain yield and harvest index but the crop establishment and yield was lesser than
greengram. From this study, it was concluded that,seed treatment with cowpea sprout extract
(2%) + foliar spray of panchagavya (1%) was more effective to increase theseedling establishment,
physiological traits and yield under sodic soil.
Key words : SPAD, Salt stress,Cowpea sprout extract, Harvest index.
.
