Search

Field experiments were conducted to study the effect of fly ash seed pelleting in rice under aerobic agriculture which can be recommended for better crop growth and establishment. The study was conducted with three concentrations viz., 200, 250 and 300g per kg of seed. Observations on growth and yield parameters viz., plant height, dry matter production, leaf area, root weight, number of productive tillers/plant, number of grains/panicle, 1000 grain weight, and single plant yield were recorded. Gas exchange parameters viz., net photosynthetic rate, leaf transpiration rate, stomatal conductance and intercellular CO2 concentration were also recorded. The experimental results revealed that aerobic rice seeds treated with fly ash @ 250 g kg-1 performed better due to increased growth, gas exchange parameters and seed yield. [ABSTRACT FROM AUTHOR]

The present study was conducted to identify rice varieties suitable for aerobic agriculture and to formulate the seed hardening and pelleting treatment that can be recommended for better crop growth and establishment under aerobic condition. The seeds of four rice varieties viz., ADT 43, ADT 38, ADT 36 and ADT 39 were treated with KCl, KH2PO4, Thiourea and CaCl2, @ 1.0 % and subsequently pelleted with pongam (Pongamia glabra) leaf powder @ 200g/kg, along with a control. The physiological parameters viz., leaf area, leaf photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentration, root dry weight and seed quality parameters were recorded. Among the varieties tested, ADT 43 was found more suitable for aerobic agriculture and, even though all the treatments performed better as compared to control, the seeds hardened with KCl (1%) followed by pelleting with pongam leaf powder @ 200 g kg-1 recorded higher physiological parameters and seed yield and better seed quality. [ABSTRACT FROM AUTHOR]