1Department of Environmental Science, Mahatma Gandhi University, Ribhoi-793 101, Meghalaya, India
2Department of Genetics and Plant Breeding, School of Plant Sciences, Pandit Deen Dayal Upadhyay Institute of Agricultural Sciences, Bishnupur, Utlou-795 134, Manipur, India
3Department of Plant Pathology, School of Plant Sciences, Pandit Deen Dayal Upadhyay Institute of Agricultural Sciences, Bishnupur, Utlou-795 134, Manipur, India
4Department of Biotechnology, Mahatma Gandhi University, Ribhoi-793 101, Meghalaya, India
*Corresponding Author: Ionebala Devi Hanglem, Department of Environmental Science, Mahatma Gandhi University, Ribhoi-793 101, Meghalaya, India, Email: ionebalahanglem@gmail.com
Online published on 1 July, 2025.
The primary objective of the study was to find out the effect of Weather parameters on the Chakhao production. Reports postulated that crop productivity is impacted by agricultural practises rather than climate. However, yield is very much dependent on environmental and cultural conditions which are less studied and not yet defined. Since Chakhao is traditionally a low yielding crop of Manipur. Despite of being their great values in nutrition, medicinally and economically, the farmers of Manipur neglect the cultivation of the black scented rice in large scale due its low yield. Thus, the current study was taken to have a better understanding of the growth and yield with effect to weather parameters of the three Chakhao cultivars viz. Poireiton, Amubi, Angouba.
The present investigation was conducted to study the effect of various weather parameters on growth and yield of black scented and aromatic rice cultivars of Manipur. During this study, three local rice cultivars of Manipur was cultivated in kharif crop season (June-July to November-December) during the year 2019, 2020 and 2021 at PDDUIAS, Research farm of Utlou, Manipur. The experimental field is located at 24°43'78”N Latitude, 93°51'60”E Longitude and the elevation or altitude of 2513 feet above mean sea level. During these experiments different major growth stages were recorded, while all other input parameters were kept constant. For this study the spacing adopted was 25 cm × 25 cm. After harvesting, the agro-morphological characters compared to analyse the effect of weather parameters were Temperature, Relative Humidity, Rainfall and Wind speed for the period of 3 years i.e., 2019, 2020, 2021.
It was observed that the rice variety Chakhao Angouba resulted the highest yield followed by Chakhao Poireiton and Chakhao Amubi. The correlation between weather parameters and agro-morphological growth and yield related parameters were estimated by Pearson correlation coefficient and degree of dependencies of these agro-morphological parameters on weather parameters were analysed by using linear regression analysis. All the yield attributing characters i.e., number of panicles per plant, number of grains per panicle and 1000 grain weight (g) were taken but they do not showed significant correlation except average rainfall and the number of leaves.
Chakhao amubi, Chakhao angouba, Chakhao poireiton, Correlation, Crop-weather relations, Growth parameter, Variety, Yield
