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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (649) Last page : (660)
Article doi: : http://dx.doi.org/10.18782/2320-7003

Biochemical Changes in Source and Sink of Chickpea Influenced by Foliar Application of Ethrel, Kinetin and Boron

P. Menaka*,Y. Ashoka Rani, K. L. Narasimha Rao and Lal Ahamed M.

Department of Crop Physiology, Agricultural College, Bapatla 522 101, ANGRAU, Guntur, Andhra Pradesh
*Corresponding Author E-mail: menaka.agbsc @ gmail.com
Received: 1.08.2018  |  Revised: 30.08.2018   |  Accepted: 12.09.2018  

 ABSTRACT

Worldwide among the pulse crops, the production of chickpea is one of most important thrust research area needs to be addressed seriously.The present investigation focused on biochemical changes in chickpea (kak 2 variety) source and sink with foliar applications oftwo plant growth regulators (Ethrel, Kinetin) and one micronutrient (Boron), applied in concentrations of 250 ppm,10 ppm and 0.25% respectively, alone and in combinations. Field experiment was conducted during rabi 2013-14 at college form, agricultural college bapatla, Andhra pradesh in clay loam soils in randomized block design with eight treatments in three replications. Chickpea highly responded to foliar applications and there was significant changes in source biochemical changes viz., relative water content (RWC), photosynthetic pigments (chl a, b, carotenoid and total chlorophyll), nitrate reductase activity (NR) and sink biochemical changes viz., total soluble protein, total starch, iron and zinc content. The results of experiment indicated that RWC significantly increased 16.5, 13.1 and 12.2 percent with Ethrel, Kinetin and Ethrel + Kinetin sprays respectively at 45 DAS compared to control. Chlorophylls and carotenoids are important pigments involved in photosynthetic activity. These levels in chickpea leaves increased up to 45 DAS and later decreased due to leaf senescence. At 45 DAS, all photosynthetic pigment contents were observed maximum with 10 ppm Kinetin at 35DAS,followed by the sprays of Ethrel at 25 DAS + Kinetin at 35 DAS and Ethrel at 25 DAS. Maximum increase in Nitrate reductase activity (NRA) was observed in Kinetin sprayed plants. The protein content of seed recorded maximum in combined foliar sprays of Ethrel, Kinetin andBoron(T7), which was 17 percent higher than that in seeds of control plants. The highest value of starch content was recorded with spray of 0.25% Boron at 45 DAS (T3) followed by the sprays of Kinetin + Boron (T5) and Ethrel + Kinetin + Boron (T7). Increase in Fe and Zn content in seeds was observed with spray of 0.25% Boron at 45 DAS (T3). In conclusion, present review indicates thatthe pattern of response of both growth hormones and micronutrients were greatly influenced the biochemical factors in chickpea source and sink.

Key words:Plant growth regulators, Nutrients, Chickpea leaf and Seed and Quality characteristics

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Menaka, P.,Ashoka Rani, Y., Narasimha Rao, K.L. and Lal Ahamed, M., Biochemical Changes in Source and Sink of Chickpea Influenced by Foliar Application of Ethrel, Kinetin and Boron, Int. J. Pure App. Biosci.6(5): 649-660 (2018). doi: http://dx.doi.org/10.18782/2320-7051.7003