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Title: Factors affecting concentration of nitrogenous compounds in plants
Researcher: Sarma, Hem Chandra
Guide(s): Boissya, Champok Lall
Keywords: Concentration
University: Gauhati University
Completed Date: 31/12/1984
Abstract: Gibberellic acid, kinetin and IAA were applied on to the leaves of phaseolus vulgaris L and pisum sativum L ver Local plants to study their effects on the morphology, reproduction and physiology of these plants. Gibberellic acid and IAA were stimulatory to both leaf growth and height of P. vulgaris plants. Kinetin was slightly effective on leaf growth while it had no effect on plant height. Kinetin and IAA, particularly at higher concentrations, were more effective than gibberellic acid in regard to initiation of branching. Gibberellic acid was an affective agent for reversal of dwarfism and in producing increased number of internodes. It also reduced girth of stem. Kinetin was exhibitory while gibberellic acid and IAA were inhibitory so far as the length of the roots in Pisum sativum plant was concerned. Kinetin caused an early initia-tion of root nodules in P. sativum plants but gibberellic acid and IAA did not help in early initiation of root nodules. Kinetin enchanced nodule size in roots. GA3 at higher concentrations stimulated production of flower buds and pods in P.vulgeris plants. Kinetin caused enhanced pod size and greater number of seeds. Each of GA3 (lower concentration), kinetin (higher concentration) and IAA (lower concentration) caused increase in fresh and dry weights of both nodules and roots of P.sativum plants. Nitrogen contents of roots and nodules of P.sativum plants in-creased in lower concentrations of GA3 or IAA and at higher concentrations of kinetin. Number and quantity of amino acids increased in the nodules of P.sativum plants treated with GA3 , kinetin or IAA. Alteration in the sugar contents of P.vulgaris leaves occurred in response to GA3, kinetin or IAA. Loss of chloro-phyll content was delayed in P.vulgaris leaves by GA3, kinetin or IAA. The rate of respiration was affected by these chemicals ; kinetin caused a slight depression in the respiration rate. Deta-ched P.vulgaris leaves were treated in dark and red light in presence or absence of BZI. BZI and red light had a positive...
Appears in Departments:Department of Botany

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02_certificate.pdf19.31 kBAdobe PDFView/Open
03_acknowledgement.pdf21.18 kBAdobe PDFView/Open
04_dedicated.pdf3.46 kBAdobe PDFView/Open
05_content.pdf8.04 kBAdobe PDFView/Open
06_abstract.pdf43.05 kBAdobe PDFView/Open
07_chapter 1.pdf417.85 kBAdobe PDFView/Open
08_chapter 2.pdf183.23 kBAdobe PDFView/Open
09_chapter 3.pdf2.6 MBAdobe PDFView/Open
10_discussion.pdf426.68 kBAdobe PDFView/Open
11_summary.pdf47.3 kBAdobe PDFView/Open
12_bibliography.pdf420.65 kBAdobe PDFView/Open

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