Comparative studies on the chlorophyll content, growth, N uptake and yield of groundnut varieties of different habit groups

Singh, A.L. and Joshi, Y.C. (1993) Comparative studies on the chlorophyll content, growth, N uptake and yield of groundnut varieties of different habit groups. Oleagineux, 48 (1). pp. 27-33.

[img] PDF - Published Version
Restricted to ICRISAT researchers only

Abstract

In field trials at Junagadh, India during the dry and wet seasons of 1985, 5 erect (Spanish bunch) and 3 Virginia runner (spreading) groundnut cultivars were evaluated for chlorophyll content, DM production, growth rate, nodule weight, N uptake, pod number and pod and haulm yields. Chlorophyll content peaked soon after emergence and was lowest at 4 weeks after emergence due to low N levels. Nodules developed 3 weeks after emergence and started to fix N and so increased chlorophyll content again. Chlorophyll content was higher in runner (cv. Robut 33-1, Punjab 1, GAUG 10) than in erect cultivars (GAUG 1, Kisan, TMV 2, JL 24, GG 2) and the runners accumulated more N and fixed more N. The Virginia runner cultivars had a higher pod number and yield than the erect types due to more DM and N accumulation and higher crop growth rate. The runner types also had a larger leaf area and higher percentage of N in their leaves throughout the season. Pod yield and DM production were greater in the dry season than in the wet season due to the longer duration of the crop.

Item Type: Article
Additional Information: SNNigam Collections
Uncontrolled Keywords: Groundnut, erect and runner, chlorophyll, crop growth rate, dry matter production, nodulation, nitrogen uptake, yields
Author Affiliation: National Research Centre for Groundnut, Junagadh 362015, India.
Subjects: Plant Production
Plant Protection
Statistics and Experimentation
Plant Physiology and Biochemistry > Biochemistry
Divisions: Groundnut
Depositing User: Mr Arbind Seth
Date Deposited: 08 Aug 2013 10:58
Last Modified: 08 Aug 2013 10:58
URI: http://eprints.icrisat.ac.in/id/eprint/11380

Actions (login required)

View Item View Item