Thumbnail Image

Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

Browse

20161
Reset filters
Subject: Agricultural Meteorology × Author: Amit Singh × Start date: 1996 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of fertility levels and plant spacing on light interception and its efficiency in Bt cotton
    (CCSHAU, 2016) Amit Singh; Khichar, M.L.
    The present study entitled “Effect of fertility levels and plant spacing on light interception and its efficiency in Bt cotton”, was conducted at the Research Farm of Cotton Section, Department of Genetics & Plant Breeding, CCS HAU, Hisar (Lat 290 10' N, Long 750 46' E and 215.2 m msl) during kharif season of 2015. The experiment was conducted in split split plot design with three replications. The experiment consist of three varieties viz.V1=RCH 602, V2= RCH 650 and V3= Bunty were kept in main plots while three spacing viz. S1= 67.5 cm x 75 cm, S2=67.5 cm x 60 cm and S3= 67.5 cm x 45 cm with three fertilizer levels i.e.F1= RDF,F2= 125% of RDF and F3= 150% of RDF application of the recommended dose were kept in subplots. Recommended dose of fertilizer is (RDF) N:P:K=175:60:60 kg ha-1. Maximum plant height and leaf area index was recorded with narrow spacing of 67.5 cm x 45 cm which was significantly higher than rest of spacing. However, wider spacing (67.5 cm x 75 cm) had lesser plant density resulted into higher dry matter accumulation. Significantly higher number of sympodial branches plant-1 was recorded with RDF but further increase in fertilizer had on significant effect sympodial branches plant-1. Number of bolls plant-1 increased with increasing levels of fertilizer from RDF to 150 % of RDF. Seed cotton yield was found highest with 125% of RDF followed by 150% of RDF and RDF. Periodic growth parameters viz. plant height and leaf area index were increased significantly with increasing levels of fertilizer up to 150% of RDF. The cultivar RCH 602 consumed highest thermal and radiation indices. Radiation and heat use efficiency were also highest in this cultivar as compared to RCH 650 and Bunty. Cotton cultivar, RCH 602 consumed highest heat units, heliothermal units and photothermal units as compared to RCH 650 and Bunty under different treatments. Among spacing, wider spacing 67.5 cm x 75 cm consumed highest heat units, heliothermal units and photothermal units as compared to narrow spacing 67.5 cm x 60 and 67.5 cm x 45 cm. However, the radiation use efficiency is maximum in spacing 67.5 cm x 75 cm as compared to 67.5 cm x 60 cm and 67.5 cm x 45 cm. But maximum IPAR observed in narrow spacing 67.5 cm x 45 cm as compared to 67.5 cm x 60 cm and 67.5 cm x 75 cm. In case of fertilizer levels, 150% of RDF consumed highest heat units, heliothermal units, photothermal units, thermal and radiation indices as compared to 125% of RDF and RDF.