Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(12): 2233-2246
DOI: https://doi.org/10.20546/ijcmas.2018.712.254


Review on Morpho–physiological Attributes of Groundnut at Various Growth Stages
P. Sreelatha*, P. Sudhakar and V. Umamahesh
Department of Crop Physiology, S.V. Agricultural College, Tirupati-517502, A.P, India
*Corresponding author
Abstract:

The crop phenology, growth and productivity are strongly influenced by changing the cropping season. The kharif (June-Oct.) is the major groundnut- growing season. The CGR is higher in kharif crop than rabi season crop, but the average per day dry matter production is similar in both the seasons. Flowering and fruiting, in groundnut, are of an indeterminate type, which generally has an effect on yield and quality. Ideal type of groundnut would be one that sets all its young fruits within 4-5 days and spends the rest of the growing season filling them. The apparent photosynthesis AP of well- developed canopies may reach values of 6 to 8 gCO2 m-2h-1. The CO2 enrichment from 400 to 800 μ mol mol-1 had positive effects on growth and yield, but not above 800 μmol mol-1. The rate of translocation is positively correlated with net photosynthetic rate and the yield improvement in groundnut, is mainly due to partitioning of assimilates between vegetative and reproductive parts, length of grain-filling period and rate of fruit development. As the light interception is about 95% complete at an LAI of 3, the extinction coefficient for visible radiation was about 1. CGR, RGR and NAR between 60-90 DAS were significantly correlated with pod yield. NAR was negatively correlated with LAI, specific leaf area and the distribution of DM to the pod and was positively correlated with leaf N content Water stress delayed pod initiation, and the major cause of variability in pod yield and harvest index was the delay between peg initiation and onset of rapid pod growth. Under water stress there is poor pod filling that reduced kernel size, shelling percentage, SMK % and lipid content of kernel. Depending upon the stage, moisture stress causes 22-47 % yield reductions.


Keywords: Morpho–physiological attributes, Groundnut, Growth stages
Download this article as Download

How to cite this article:

Sreelatha, P., Sudhakar, P. and Umamahesh, V. 2018. Review on Morpho–physiological Attributes of Groundnut at Various Growth Stages.Int.J.Curr.Microbiol.App.Sci. 7(12): 2233-2246. doi: https://doi.org/10.20546/ijcmas.2018.712.254