Vol. 11, Issue 8 (2022)

Author(s):
BK Farkade, VM Bhale, VK Kharche and MR Deshmukh

Abstract:
A field experiment was undertaken at Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra, India to study the influence of iron and manganese biofortification on growth, yield and development stages of upland irrigated rice cultivars during Kharif 2017 and 2018. The experiment was laid out in factorial randomized block design (FRBD) with three replications. The testing variables consisted of three cultivars i.e. Kamesh (CR Dhan-40), Avishkar (PBNR 93-1) and Sindewahi-1 (Sye-1) and seven combinations of nutrient sources of recommended dose of fertilizers (NPK) with Fe and Mn levels. Two years a result reveals that, significantly highest plant height was recorded in variety Kamesh (78.77cm). Significantly highest no. of tillers and dry matter accumulation were recorded by variety Parbhani Avishkar. However, highest no. of functional leaves was recorded by genotype Sindewahi-1 at Akola condition. The significantly highest plant height, no. of tillers, no. of functional leaves, dry matter and yield were recorded by nutrients treatment of RDF with FeSO₄ @ 25 Kg ha^-1 and MnSO₄ @ 5 Kg ha^-1. The maximum grain yield and straw yield were recorded by variety Avishkar and found significantly superior over other varieties. The development stages show little more variation. This variation in attaining phenotypic stages might be due to genetic makeup of cultivars. Response to growth Fe and Mn in growth and nutrition of the rice plant has been reported (Chiu, 1967, Alam 1982). Fe and Mn were essential for better plant growth and efficient utilization of these nutrients by rice plants.