International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 1
First page : (444) Last page : (452)
Article doi: http://dx.doi.org/10.18782/2320-7051.2540
Performance of Different Basmati Cultivars and Nitrogen Scheduling on Growth Parameters in North Western India
Mohinder Singh1* and Dharam Bir Yadav2
1Faculty of Agricultural Science, SGT University, Hisar-122504, India
2Professor and Project Director, CCSHAU, Hisar
*Corresponding Author E-mail: mohinder27481@rediffmail.com
Received: 2.02.2017 | Revised: 14.02.2017 | Accepted: 15.02.2017
ABSTRACT
An experiment was conducted at the Rice Research Station, CCSHAU, Karnal, to study the effects of nitrogen fertilizer with different basmati rice (Oryza sativa L.) cultivars on growth parameters, yield attributes and yield. The observation were recorded on dry matter accumulation (DMA), leaf area index (LAI), growth rate (CGR), leaf area duration (LAD) at 40, 60, 80 DAS and maturity. The relationship between grain yield with growth indexes measured by correlation coefficient (r) and regression coefficients (R2). Results of growth analysis indicated that, nitrogen increasing rates and number of split application caused the increment of DMA, LAI, LAD, CGR and AGR. HB 2 and PB 1121 showed higher growth indices rather than PB 1 and PB 1509. Results indicated that cultivar and nitrogen fertilizer significantly effected on dry matter accumulation, LAI, LAD, AGR and CGR. Cultivars differed significantly in respect to dry matter accumulation at all the stages. Basmati cultivar HB-2 recorded maximum dry weight per meter-2 but statistically alike with PB-1121 which was significantly higher than PB-1 and PB-1509 at maturity. Maximum LAI was recorded at 80 DAS with cultivar HB-2 followed by PB-1121, PB-1 and PB-1509. At 80 DAS, PB-1121 showed maximum LAD (120.7 & 121.2) which was statistically alike with HB-2 (121.7 & 124.7) and statistically higher than PB-1 (110.7 & 111.9) and PB-1509 (107.2 & 109.5) during 2014 & 2015. At 40 and 60 DAS, there was no significant difference in AGR among all cultivars. AGR increased with advancement of crop growth period up to 80 DAS and thereafter decreased at maturity among all the cultivars. At maturity, maximum AGR was recorded with cultivar PB-1509 (1.25 & 1.30 g day-1) which was significantly higher than rest of cultivars while lowest AGR was recorded with PB-1 (0.94 & 0.96 g day-1). Cultivar HB-2 recorded maximum CGR (23.69 & 24.11 g m-2 day-1) which was statistically alike with PB-1121 (20.36 & 23.18 g m-2 day-1) and significantly higher than PB-1 (19.70 & 19.69 g m-2 day-1) and PB-1509 (16.00 & 17.03 g m-2 day-1) at 80 DAS during successive years of study. Dry matter accumulation, LAI, LAD, AGR and CGR increased with increased in nitrogen application up to 110 kg N ha-1. Four split timings results in higher growth parameters than three split.
Key words: Dry matter accumulation, Direct seeded rice, Nitrogen application, leaf area index, crop growth rate
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Singh, M. and Yadav, D.B., Performance of Different Basmati Cultivars and Nitrogen Scheduling on Growth Parameters in North Western India , Int. J. Pure App. Biosci.5(1): 444-452 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2540
