Effect of organics along with azosprillum (Root and Soil Isolate) on growth and leaf yield in Gymnema (Gymnema sylvestre R.Br)

Abstract

The experiment on the effect of organics along with Azospirillum (Root and soil isolate) on growth and leaf yield in Gymnema (Gymnema sylvestre R.Br) was carried out at the Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalai Nagar. There were totally seventeen treatments viz., T1-Vermicompost (0.5kg) + Azospirillum (Root isolate), T2-Vermicompost (1.0kg) + Azospirillum (Root isolate), T3- Decomposed coir pith (2.5kg) + Azospirillum (Root isolate), T4- Decomposed coir pith (5.0kg) + Azospirillum (Root isolate),T5- FYM (5.0kg) + Azospirillum (Root isolate), T6- FYM (10.0kg) + Azospirillum (Root isolate), T7- Pressmud (2.5 kg)+ Azospirillum (Root isolate), T8- Pressmud (5.0 kg)+ Azospirillum (Root isolate), T9-Vermicompost (0.5kg) + Azospirillum (Soil isolate), T10-Vermicompost (1.0kg) + Azospirillum (Soil isolate), T11- Decomposed coir pith (2.5kg) + Azospirillum (Soil isolate), T12- Decomposed coir pith (5.0kg) + Azospirillum (Soil isolate), T13- FYM (5.0kg) + Azospirillum (Soil isolate), T14- FYM (10.0kg) + Azospirillum (Soil isolate), T15- Pressmud (2.5 kg)+ Azospirillum (Soil isolate), T16- Pressmud (5.0 kg)+ Azospirillum (Soil isolate), T17-Control. There were established in the pot culture and observed for certain growth characters like Plant height, Number of laterals plant-1, Number of leaves lateral-1, Leaf length (cm),Leaf breadth(cm), Leaf area(cm2), Single leaf weight(gm.), 100 Leaves weight(gm.), Fresh leaf yield plant-1(gm.) and dry leaf yield were recorded four months of planting. The Treatment T2-Vermicompost (1.0kg) + Azospirillum (Root isolate(10gm.)) recorded highest plant height (264.36), Number of laterals/plant (52.19), Number of leaves/lateral (110.13), Leaf length (7.88cm), Leaf breath (5.87cm), Leaf area (17.55cm2), Single leaf weight (0.44gm.), 100 leaves weight (44.18gm.), Fresh leaves yield/plant (3.86kg.) and Dry leaves/plant (2.91kg.). This was followed by T4- Decomposed coir pith (5.0kg) + Azospirillum (Root isolate 10 gm.).