Vol. 11, Issue 5 (2022)

Author(s):
Indrajeet Singh, Arun Kumar, Arvind Malik and Jitendra Kumar

Abstract:
Rice (Oryza sativa L., 2n= 24) is a plant belonging to the family Poaceae (Gramineae). It is one of the three major food crops of the world and forms the staple diet of about half of the world’s population. Uttar Pradesh is an important rice growing state in the country. The area and production of rice in the state is about 5.09 million ha. and production of 15.30 million tones, with productivity of 2573 kg/ha. (Anonymous, 2014). Nearly, 6.73mha of soil in India is salt affected and categorized into two broad groups’ alkaline and saline soils. Recent estimates indicate that more than 1.5mha of salt affected area has been reclaimed and is contributing about 10 million tonnes additional food grains to the central pool. The simple correlations between different characters at genotypic (g) and phenotypic (p) levels were estimated as below according to Searle (1961) ^[2]. Correlation coefficient studies indicated biological yield per plant, plant height, panicle length and spikelets fertility were positively correlated with each other. On the other hand, panicle bearing tillers per plant, panicle length, biological yield, harvest index and grains per panicle were found to be positively and significantly associated with grain yield per plant possessing direct impact on yield.