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PERFORMANCE OF GROUNDNUT VARIETIES UNDER DIFFERENT PLANT POPULATIONS DURING EARLY KHARIF

KrishiKosh

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Field Value
 
Title PERFORMANCE OF GROUNDNUT VARIETIES UNDER DIFFERENT PLANT POPULATIONS DURING EARLY KHARIF
 
Creator BHAGAVATHA PRIYA, T
 
Contributor SUBRAMANYAM, D
 
Subject bacteria, diseases, antibiotics, microbial flora, biological phenomena, fertilizers, sampling, byproducts, polysaccharides, sexual reproduction, PERFORMANCE, GROUNDNUT, VARIETIES UNDER, DIFFERENT, PLANT POPULATIONS, DURING, EARLY, KHARIF
 
Description A field experiment was conducted in sandy loam soils at Sri Venkateswara Agricultural College Farm, Tirupati campus of Acharya N.G. Ranga Agricultural University, Andhra Pradesh, during early kharif, 2013, to study the ?Performance of groundnut varieties under different plant populations?. The treatments consisted of four groundnut varieties viz., Abhaya, TAG-24, Dharani and Kadiri-6 and four plant populations viz., 3.33, 4.44, 5.00 and 6.66 lakh ha-1. The experiment was laidout in a randomized block design with factorial concept and replicated thrice.
The results indicated that among the four varieties evaluated, the growth characters viz., plant height, leaf area index and total dry matter production were significantly higher with the variety Kadiri-6 compared to rest of the varieties. The lowest values of these growth parameters were registered with TAG-24. The SPAD chlorophyll meter readings were significantly higher with Dharani, while at their lowest with Kadiri-6. Among the plant populations tested, the highest plant height, leaf area index and total dry matter production were recorded with plant population of 6.66 lakh ha-1, while all these growth parameters were the lowest with the plant population of 3.33 lakh ha-1. The interaction was found significant with respect to plant height and leaf area index at 75 DAS and dry matter production at harvest. The highest values of these growth parameters were registered with Kadiri-6 at plant population of 6.66 lakh ha-1.
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Days to 50 per cent flowering and days to maturity were the minimum with groundnut variety, TAG-24 and these parameters were maximum with Abhaya. The minimum and maximum number of days to 50 per cent flowering and days to maturity were registered with 6.66 and 3.33 lakh ha-1, respectively. The interaction was found significant between varieties and plant populations with respect to 50 per cent flowering, whereas Abhaya variety took maximum number of days for 50 per cent flowering at plant population of 3.33 lakh ha-1. Pegs plant-1 and total number of pods plant-1 were significantly higher with TAG-24, while the lowest values were recorded with Kadiri-6. The maximum and minimum number of pegs plant-1 and total pods plant-1 were recorded with 3.33 and 6.66 lakh plants ha-1, respectively. The highest values of these two parameters were registered with TAG-24 at plant population of 3.33 lakh ha-1 and at their lowest with the groundnut variety Kadiri-6 at plant population of 6.66 lakh ha-1. The groundnut variety, Dharani resulted in the highest values of filled pods plant-1, peg to pod percentage, hundred pod and kernel weight, which were significantly higher than rest of the varieties tried. The lowest values of these yield characters were produced with TAG-24 except filled pods plant-1 and peg to pod percentage, where Kadiri-6 recorded the lowest values of these parameters. The highest values of the yield parameters were recorded with plant population of 3.33 lakh ha-1, while the lowest values were recorded with plant population of 6.66 lakh ha-1. The interaction was found significant only for filled pods plant-1 and peg to pod percentage. The highest number of filled pods plant-1 and peg to pod percentage was obtained with Dharani at plant population of 3.33 lakh ha-1, while the lowest with Abhaya at plant population of 6.66 lakh ha-1. The highest pod yield was obtained with Dharani followed by TAG-24, Kadiri-6 and Abhaya, with a significant disparity between any two of them. The highest pod yield was obtained with plant population of 5.00 lakh ha-1 followed by 3.33, 4.44 and 6.66 lakh ha-1 with significant disparity between any two of them. The groundnut variety, Dharani recorded significantly higher pod yield at plant population of 5.00 lakh ha-1 followed by the same variety at plant population of 3.33 lakh ha-1. The oil yield of groundnut showed the similar trend as that of the pod yield with different magnitude. The oil content was significantly higher with TAG-24 and the lowest with Dharani. There is no significant influence of plant population and interaction effect on oil content. The groundnut variety Kadiri-6 resulted in the highest haulm yield, while it was the lowest with TAG-24. Among the plant populations, the haulm yield was increased with increasing in plant population from 3.33 to 6.66 lakh ha-1 and the highest haulm yield was obtained with 6.66 lakh ha-1.
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The highest harvest index was computed with TAG-24, which was significantly higher than rest of the varieties. The next best variety in recording higher harvest index was the Dharani. The lowest harvest index was registered with Abhaya. The harvest index was decreased with increasing plant population from 3.33 to 6.66 lakh ha-1 and the lowest harvest index was obtained with higher plant population of 6.66 lakh ha-1. The highest harvest index was computed with TAG-24 at plant population of 3.33 lakh ha-1, whereas the lowest harvest index was obtained with Kadiri-6 at plant population of 6.66 lakh ha-1. The groundnut variety Dharani resulted in the highest shelling percentage while the lowest was registered with Kadiri-6. The maximum and minimum shelling percentages were computed with plant population of 3.33 and 6.66 lakh ha-1, respectively. The highest shelling percentage was registered with Dharani at plant population of 3.33 lakh ha-1.
The highest gross and net returns with highest benefit-cost ratio were realized with Dharani, which was significantly higher than rest of the varieties. The next best variety in obtaining higher economic returns was TAG-24. The lowest values of these economic parameters were realized with Abhaya. Among the plant populations studied, the highest gross and net returns were realized with plant population of 5.00 lakh ha-1. The benefit-cost ratio was significantly higher with plant population of 3.33 lakh ha-1. The lowest values of the economic parameters viz., gross and net returns and benefit-cost ratio were obtained with plant population of 6.66 lakh ha-1. The groundnut variety Dharani at plant population of 5.00 lakh ha-1 resulted in the highest gross and net returns, while the highest benefit-cost ratio was obtained with Dharani at plant population of 3.33 lakh ha-1. The lowest values of gross and net returns as well as benefit-cost ratio were realized with variety Abhaya at plant population of 6.66 lakh ha-1 followed by Kadiri-6 at the same plant population. The present investigation revealed that the highest pod yield and the economic returns were obtained with the cultivation of groundnut variety Dharani at plant population of 5.00 lakh ha-1 in sandy loam soils of Southern Agro-climatic Zone of Andhra Pradesh during early kharif.
 
Date 2016-10-28T15:22:03Z
2016-10-28T15:22:03Z
2014
 
Type Thesis
 
Identifier 148P.
http://krishikosh.egranth.ac.in/handle/1/82820
 
Language en_US
 
Relation D5011;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY