Volume 41, Issue 2
February 1955, pages 47-95
pp 47-64 February 1955
pp 65-68 February 1955
Data on the effect of spraying Sodium MCPA to suppressCyperus rotundus, Linn. a perennial weed, on the ultimate yield of wheat crop grown in the area are presented.
Spraying at the rate of 200 gallons of 0.2% spray liquid per acre has shown that the herbicide has no deleterious effect on the germination of wheat.
Spraying for control of nut-grass has resulted in a 34% increase in the yield of grain over the control.
pp 69-73 February 1955
A rapid colorimetric field test for the evaluation of organic matter in soils of the State has been evolved. Two c.c. of 2·5 N potassium dichromate and 2·5 c.c. of strong sulphuric acid for 1 gm. of soil have been found to give a fairly good estimate of the organic matter content. The method works well within the limits of ·7–3% of organic matter, and gives a bright green colour for soils containing 3% or more of organic matter, a dark-brown for soils with 1·5% and a reddish brown for soils with 0·7% or below.
pp 74-78 February 1955
The non-genitical nature of bud-abnormalities of various types has been universally admitted except in one case reported by Jeswiet in which triple buds persisted in a clone even after vegetative propagation for 4 years. Their occurrence is ascribed to hormones, minor elements or diminished apical dominance by different workers.
Out of 69 stalks belonging to 24 varieties with multiple buds, several had insect injury in immediate neighbourhood while in many others no outward manifestation of any disturbance was descernible. Greater number of stalks found in one variety than in the other, indicates a varietal propensity towards such malformations.
In 8 cases beloging to 5 varieties, occarance of multiple bud was found associated with curvature in that portion of the stalks while in 3 of these and 7 others such buds were formed on alternate nodes.
Geotropic disturbance of stalk is discussed as a plausible explanation to account fir these observed facts.
pp 79-81 February 1955
pp 82-85 February 1955
pp 86-95 February 1955