Correlative Analysis of Yield and its Components in Maize
- 1 January 1974
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 10 (2) , 81-86
- https://doi.org/10.1017/s0014479700009480
Abstract
SUMMARY At Pantnagar, India, linear response in maize to nitrogen application was observed up to 150 kg. of N/ha. with some of the most promising hybrids and composites released by the All India Co-ordinated Maize Improvement Programme. Increase in grain yield, and total nitrogen accumulation in grain, were substantially more in Ganga 2 than in the local cultivar or the composites, at higher rates of N application. In absolute terms, the local cultivar accumulated more nitrogen in its grain, but the relative amounts declined at higher rates of N application. Among the yield components influencing ultimate grain yield, barrenness exerted a negative influence on grain yield through the number of cobs per plot. Among cob characters, such as thousand grain weight and number of grains per cob, the former exerted a substantial influence on grain yield.Keywords
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