Prin ISSN 0253-8040
Online ISSN 0974-8164

Indian Journal of

Weed Science

Editorial Board

Chief Editor


Dr. J.S. Mishra
Principal Scientist, Division of Crop Research,
ICAR Research Complex for Eastern Region,
Bihar Veterinary College, Patna - 800014 (Bihar)
Mobile - +91 9494240904
Email- editorisws@gmail, jsmishra31@gmail.com

Associate editors

&
Dr. Bhagirath Singh Chauhan
Hydarabad, INDIA
Email: b.chauhan@uq.edu.au
Dr. A.N. Rao
Hydarabad, INDIA
Mobile Number: +91 9440372165
Email: adusumilli.narayanarao@gmail.com

Editor- News Letter-Electronic


Dr. S.K. Guru
Pant Nagar, UK, INDIA
Mobile - +91 9411195441
Email- skguru123@yahoo.com

Editors

Dr. A.S. Rao
Mobile Number: 9959347340
Email: atlurisrao@gmail.com
Dr. Anil Duhan
Mobile - +91 9466051639
Email- a.duhan@rediffmail.com
Dr. Ashok Yadav
Mobile - +91 9416995523
Email- aky444@gmail.com
Dr. B. Duary
Mobile Number: +91 9434326193
Email: bduary@yahoo.co.in
Dr. C.R. Chinnamuthu
Mobile - +91 9442014373
Email- crchinnamuthu@yahoo.com
Dr. I.C. Barua
Mobile - +91 9435094326
Email- iswar_barua@yahoo.co.in
Dr. M.K. Singh
Mobile - +91
Email-
Dr. P. Janaki (Coimbatore)
Mobile Number: 9443936160
Email: janakibalamurugan@rediffmail.com
Dr. R. Poonguzhalan
Mobile Number: 9994556988
Email: poonguzhalan@yahoo.com
Dr. R.S. Chhokar
Mobile Number: 9416296262
Email: rs_chhokar@yahoo.co.in
Dr. V.S.G.R. Naidu (Rajahmundry)
Mobile - +91 8790819002
Email- naidudwsr@gmail.comm
Dr. Vijay Kumar Choudhary
Mobile - +91 9425244075
Email- ind_vc@rediffmail.com
Dr. Virender Sardana
Mobile Number: 9463747125
Email: virsardana@gmail.com
Dr. Yogita Gharde
Mobile - +91 9425412748
Email- yogitagharde@gmail.com

Overseas editors

Email: jpacific10@gmail.com
Email: amit.jhala@unl.edu
Email: asad.iags@pu.edu.pk
Email: zahoorganie11@huskers.unl.edu
Email: haider3993@gmail.com
The Evolution of Weed Control as a Science
Author Name: B. P. Upchurch
DOI:                  IJWS-1969-1-3&4-1 Page No:77-82
Volume: 1 1969 Full length articles
Keywords:
Abstract:
Address: Special lecture delivered to weed specialists at T. A, R. I.. New Delhi.
Email:
Mode of action of Simazine [2-Chloro-4, 6-bis (ethylamino) S-Triazine] in relation to Phyto-toxicity
Author Name: D. J. Chadnra Singh and J. C. Frazier
DOI:                  IJWS-1969-1-3&4-2 Page No:83-94
Volume: 1 1969 Full length articles
Keywords:
Abstract:

Many investigations have been conducted on hormonal herbicides like 2, 4-Dichlorophenoxy acetic acid and similar compounds but relatively few studies have been made on 2-chloro 4, 6-bis (ethylamino)-S-triazine (simazine). The general processes of absorption, translocation, growth regulation, and mechanism of herbicidal action of a broad spectrum of herbicides have been reviewed recently (9, 10,22,25,30,33,37). Most of the investigations with sima. zine have dealt primarily with corn and have been largely concerned with symptomatology and toxicology. The chemistry, absorption, translocation, metabol-ism and toxicity of triazine herbicides have been summarised (17, 26). A few investigations have dealt wholly with the absorption and translocation aspects of. simazine (6, 11, 31). It was' estab lishad by Exer (12) and Moreland et at, (27) that simazine acts as a c;trong inhibitor of the Hlll reaction (Phototysis of water). A series of studies by Gysin and associates (16 & 17) have given Impetus to relating chemical structure to phytotoxicity.

Address: Plant Physiologist and Professor in Plant Physiology, Dept, of Biological Sciences. Kansas fitate University, Manhattan (Kans.) U. S. A
Email:
Weed Control in the Fodder Crops of Teosinte & Maize
Author Name: R. K. Panday, R. P. Singh and M. Singh
DOI:                  IJWS-1969-1-3&4-3 Page No:95-102
Volume: 1 1969 Full length articles
Keywords:
Abstract:

A field exper irnent on the control of weeds in teosinte and maize fodders was conducted at the Central Farm of the Indian Grassland & Fodder Research Institute, Jhansi during 1967-68 and 1968-69. The treatments included preemergerce application of slrnaz in e (0.75 and 1.50 kg a.i./ha) alone and in combination with post-emergence application of amine salts of 2, 4-0 and MCPA and mechanical weeding, in addition to mechanical weeding alone, intercropoing with cowpeas and untreated control. The residual effect of treatments was studied on the mbi crops of potato and berseem. Treatment effects were observed on weeds and the fodder yields. Application of simazine @ 1.50 kg a i /ha in combination with mechanical weeding proved most effective in controlling weeds and increasing the yield of fodders. This treatment was also found suitable for the cultivation of potato or berseem crops during the rabi season.

Address: *Asstt. Agronomist (Weed Control), Agronomist (Weed Control), Indian Grassland & Fodder Research Institution, Jhansi, and Director, Central Potato Research Institution, Simla
Email:
Relative efficiency of Weedicides with and without hand weeding in Maize
Author Name: S. C. Chaurasia and N. N. Sharma
DOI:                  IJWS-1969-1-3&4-4 Page No:103-109
Volume: 1 1969 Full length articles
Keywords:
Abstract:

Important findings from the investigation are, summarised below :- Yield attributes such as length and girth of cob, number of grains per cob and 1000-grain weight were significantly influenced by pre-emergence application of the full dose, irrespective of the weedicides. However, among the weedicides, Tafazine 50 W (Simazine) proved to be the best Maximum grain and stover yields were obtained with full dose pre-emergence application of Tafazine 50 W (Simazine). In almost all the characters two hand. weeding was superior to one hand weeding.

Address: Division of Agronomy, Bihar Agricultural College, S!lbour (Bhagalpur),
Email:
Comparative Efficiency of Afalon, Tafazine 50-W and 2,4-D in controlling weeds in Jowar (Andropogon sorghum Brot.)
Author Name: G. K. Patro and G. C. Tosh
DOI:                  IJWS-1969-1-3&4-5 Page No:110-114
Volume: 1 1969 Full length articles
Keywords:
Abstract:

The investigation was carried out on jowar crop with the variety CSH-1 in the 'A' block of the Agronomy Research Farm. Bhubaneswar during the winter season of the year 1968-69 in a sandy loam soil of average fertil ity status with eight treatments and three replications in a randomised block design. Afalon [N-(3, 4-dichlorophenyl)-Nl-methoxy-Nl-methYI urea] @ 1.0 kg a e./ha, Tafazine 50 W [Simazine i e, 2-chloro 4, 6-bis-(ethyl amino)-s-triazine] @ 1.0 kg a.e /ha and Na salt of 2, 4-0 @ 1.68 kg a.e.jha were tried aione and in combination with one hoeing and earthing comprising of six herbicidal treatments. The other two treatments 'Cu Itivators' practice' (Two hoeings, two weedings and two earthings) and un-weeded control. All the herbicides were tried as pre-emergence sprays, immediately on the next day of sowing mixing in water @ 1124 litres/ha. The salient results obtained are given below:

1. Afalon and Tafazine SOW appeared to have no adverse effect on germination. Na salt of 2, 4·0 significantly reduced germination over all the rest of the treatments.

2. All the treatments Significantly reduced the weed population over un-weeded control. Afalon and Tafazine 50 W when supplemented with one hoeing and earthing recorded the minimum weed population count.

 

3. Maximum grain yield/ha was recorded with Afalon, whensuoolemented with one hoeing and earthing.

Address: Contribution from the weed research scheme, Orissa University of Agriculture & Technology, Bhubaneswar-J,
Email:
Auxin Mediated Nucleic Acid and Protein Synthesis in Simazine Treated Maize Plants
Author Name: O. S. Singh, B. K. Sinha and S. K. Madan
DOI:                  IJWS-1969-1-3&4-6 Page No:115-118
Volume: 1 1969 Full length articles
Keywords:
Abstract:

Maize plants (var. Ganga Hybrid 1) were treated with 0, 0.5x19-soM, 0.5x 10-,1"M. 0.5x10_-10M concentrations of simazi ne. Treated plants exh ioited higher level-of chlorophyll auxin, DNA, RNA and protein and a decreased activity of proxidas. Impact of increased level of auxin in simazine treated plants on nucleic acid and protein synthesis has been discussed.

Address: Assisiant Professor of Botany. Assistant Professor of f'oils and Graduate student. Punjab Agricultural University, Ludhiana
Email:
Chemical Weed Control in Cotton
Author Name: G. Hunsigi, B. H. Katarki and S. B. Hunnikeri
DOI:                  IJWS-1969-1-3&4-7 Page No:119-122
Volume: 1 1969 Full length articles
Keywords:
Abstract:

The investigations were carried out at Dharwar and Gadag during 1968-69 to study the efficacy of herbicides applied either in the. crop rowan in the entire plot on seed cotton yield. Substituted-urea compounds like Diuron and Cotoron applied in the crop row at 0.625 Kg./ha controlled weeds effictively and produced more seed cotton yield. Weed index (W. I.) values were low in plot where diuron and cotoron were applied in the crop rows, suggessting that reduction in seed cotton yield due to weed competition is considerably less. Tire application of herbicides for cotton in the crop row seems to be better than in the entire plot.

Address: *Agronomist, Cotton Specialist and Research Assistant respectively University of Agricultural Sciences, Dharwar.
Email:
Weed Control in Sugarcane by Pre-emergence Application of Some Weedicides and their Effect on Sugarcane
Author Name: Onkar Singh, H. S. Gill and C. N. Babu
DOI:                  IJWS-1969-1-3&4-8 Page No:123-128
Volume: 1 1969 Full length articles
Keywords:
Abstract:

Experiments were conducted to studv the comparative efficacy of pre-emergence (to crop) spray of six weedicides viz: s~azin~, atra~ine, prometryne. ametryne. desmetryne and sodium 2. 4-0 each at 3..82 kg./ha for control of weeds in sugarcane and their effects on cane yield and juice quality. Maximum weed mortality was attained under simlzine '(73 6%) followed by atraz lne (69.8%,. There were indications of early disintegration in soil of prometryne, ametryne, and desmetryne. than simazine and atrazine. Germination percentage was not affected but the tillering capacity was favourably influenced by the weedicidal treatments. Height of cane was found to be significantly greater under all the weedicides except 2. 4-0. Hi hest cane yield of 420.2 q/ha. was obtainAd under simazine. followed by atrazine (410.4 q/ha). Difference between simazine and atrazine was not significant. The quality of cane juice i. e. Sucrose and purity percentage was not influenced C1ythe weedicidal treatments.

Address: Contribution from Sugarcane Physiology Section, Department of Plant Breeding, P. A. U. Ludhiana (Pb).
Email:
Weed Flora of Malpura
Author Name: A. S. Faroda
DOI:                  IJWS-1969-1-3&4-9 Page No:129-140
Volume: 1 1969 Full length articles
Keywords:
Abstract:
Address: "'Central She~p & Wool Research Institution, Avikanagar (Rajasthan).
Email:
Sensitivity of dwarf and desi wheats at different growth stages to the application of 2.4-D
Author Name: N. K. Behl and M. K. Moolani
DOI:                  IJWS-1969-1-3&4-10 Page No:141-148
Volume: 1 1969 Full length articles
Keywords:
Abstract:

Experimental trials were laid out at the Agronomy Reserch Farm of Punjab Agricultural Univer sliy, Hissarfor two' years in the rabi season 9f 1~67-68and 1968-69 to study the response of 2, 4-0ichlorophenoxy acetic acide applied at " different crop stages to wheat (Kalyan-227 andC-306) ..The soil of the experimental area l s of sandy loam type and received about 118 and 36 mm of rainfall during the crop seoson for the year 1967-68 and 1968-69 respectively; Results of the exper lrnentclear lyIndtcate that" senstive stage of the wheat  crop to the .aoplic atio n of 2.4-D is at seedling'stage (Spray 15 daysafter so..yin:g). At this stage, ths leaves of the pl ant s were oniontike in nature, Various abnormalities of the spikelets like numerous sterile spikes, curvature of the soikelets, erect spikes occured due to which the yield of the wheat crop was reduced si{J-Oificantely as compared to all other treatments. The best tlrne for spraying 2, 4-D appl ication was found from 30-45 days in ~alyan 227 and 45 days after sowing. In C·306 varieties of wheat. At earlier and Iaterstaqes, the weed mortalities' was found to be less as compared to optimum stages and thus had competition with wheat crop 'resulting in reduced crop yield. .

Address: Research Assistant (Agronomy) and Professor and Head. Department of Agronomy. Punjab Agricultural University, Hissar,
Email:
Herbicidal Control of Weeds in Potato
Author Name: O. N. Mehrotra, R. C. Garg and I. Singh
DOI:                  IJWS-1969-1-3&4-11 Page No:149-156
Volume: 1 1969 Full length articles
Keywords:
Abstract:

An experiment was carried out at Kanour for two seasons, 1967-68 and 1968-69 to determine the comparative efflciency of some pre and post emergence her~icides sprayed in aqueous solution' b'y a knapsack sprayer, for the contra of weeds in potato var iety kufri shakti, Apal ic atlo n of Tok E-25 at the rate of 1.5 kg a. i./ha as pre-emergence treatment gave the highest tuber yield of potato (420.4 quintals/ha); this was followed by Stam F-34 (370.8) and Eotarn (330.4). Tok E-25, gave 39.1% higher tuber yield and when compared with control and other treatments the differences were significant. Weeds were controlled to the extent of 61.9% by Tok E-25. Eptarn as a pre-planting treatment, gave an overall 90.1% weed control and was found most effective in controlling Cyperus rotusulus, Stam F-34 showed only 42.8 percent control of the weeds.' Tok E-25 and Stam F-34 appeared promising and most economical herbicides for controlling weeds in potato. They not only gave signiflcantly higher yield, but also effectively controlled majority of the weeds. However, where Cyperus rotumdus is the problem, Eptam seems better. The highest income of Rs. 2936.00 per hectare was obtained with Tok E-25, followed by Starn F-34 (Rs. 2006.50) and Eptarn (Rs, 728.10)

Address: Contribution from U. P. Institute of Agricultural Sciences, Kanpur-2.
Email: