scholarly journals Effect of different water regimes and organic manures on indole acetic acid (IAA), oxidase activity, leaf area, light transmission ratio, chlorophyll stability index, relative water content and yield attributes of noni (Morinda citrifolia L.)

2015 ◽  
Vol 9 (16) ◽  
pp. 550-560
Author(s):  
Muthu Kumar S ◽  
Ponnuswami V
2015 ◽  
Vol 8 (1) ◽  
pp. 139-145
Author(s):  
AM Khaled ◽  
S Sikder ◽  
MR Islam ◽  
MA Hasan ◽  
MM Bahadur

The experiment was conducted at research field and laboratory of the Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during the period of December 2013 to April 2014. The experiment was laid out in two factors randomized complete block design with three replications including three concentrations of Indole Acetic Acid (0, 100 and 200 ppm) and three tomato varieties (BARI tomato 7, Manik and Ratan). Plant height, number of leaves and number of branches, days required for first flower initiation, days required for 50% flowering, days required for fruit setting, fruit cluster plant-1, fruit plant-1, weight tomato-1, yield plant-1, yield plot-1 and yield hectare-1 were significant influenced by the combined application of IAA and varieties of tomato. BARI Tomato-7 had the highest fruit yield with 100 ppm IAA and the lowest yield was observed in Ratan with 0 ppm IAA. IAA treated plots showed better performance for growth parameters and yield compared to control condition and 100 ppm IAA was more suitable than the 200 ppm IAA for higher yield of tomato cultivation. Among the treatment combinations, BARI Tomato-7 with 100 ppm IAA was superior, Ratan with 0 ppm IAA was inferior and BARI Tomato-7 with 200 ppm IAA, Manik with 200 ppm IAA and Ratan with 200 ppm IAA treated plots showed the intermediate results for yield and yield components.J. Environ. Sci. & Natural Resources, 8(1): 139-145 2015


1977 ◽  
Vol 55 (20) ◽  
pp. 2630-2635 ◽  
Author(s):  
O. P. Srivastava ◽  
R. B. van Huystee

Two methods were used to separate heme and apoenzyme from the holoenzyme of peroxidase (EC 1.11.1.7) isolated from medium of cultured peanut cells. Apoenzyme prepared by either method lacked peroxidase activity but possessed indole acetic acid (IAA) oxidase and poly phenol oxidase (PPO) (EC 1.14.18.1) activity. When the holoenzyme was reconstituted with heme and apoenzyme, peroxidase activity was restored. The studies on the active site revealed that PPO and IAA oxidase share the same active site on the apoenzyme.


2016 ◽  
Vol 5 (12) ◽  
pp. 5179
Author(s):  
Ilahi Shaik* ◽  
P. Janakiram ◽  
Sujatha L. ◽  
Sushma Chandra

Indole acetic acid is a natural phytohormone which influence the root and shoot growth of the plants. Six (GM1-GM6) endosymbiotic bacteria are isolated from Gracilaria corticata and screened for the production of IAA out of six, three bacterial strains GM3, GM5 and GM6 produced significant amount of IAA 102.4 µg/ml 89.40 µg/ml 109.43 µg/ml respectively. Presence of IAA in culture filtrate of the above strains is further analyzed and confirmed by TLC. As these bacterial strains, able to tolerate the high salinity these can be effectively used as PGR to increase the crop yield in saline soils.


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