Tropical crops.
India, G. B. Pant University of Agriculture and Technology: Annual report of research 1974-75. : 164 pp.
Abstract : Bananas: Collection and evaluation of germplasm; effects of Zn and B on Basrai Dwarf; effect of planting method on growth and yield; and the effect of NPK on yield and fruit quality in Basrai Dwarf. Guavas: Studies on the cropping pattern and its regulation; and the effect of different NPK rates on the cv. Allahabad Safeda in unirrigated conditions. Mangoes: Efficacy of banding materials against mealy bug [Drosicha stebbingi]; biology, bionomics and control of leaf weevil (Rhynchaenus mangiferae); effect of insecticide injection into the main branches on the control of gall formation by Apsylla cistellata; development and description of NPK deficiency symptoms; investigations into the cause and control of internal necrosis; studies on causes of low fruit set in commercial cvs; studies on gummosis; investigations into the causes and control of rosetting in seedlings; control and flowering and fruit drop in the cv. Samer-Behist-Chausa; physiology of bearing and non-bearing shoots with special reference to natural hormones; investigation into the cause and control of alternate bearing and chemical treatments; control of little leaf with Zn + Ca; survey of mango diseases in unirrigated areas and causes and control of mango malformation caused by virus or mycoplasma. Pawpaws: Breeding; effect of planting date on the growth and yield of the cv. Co.1; survey of pawpaw diseases in unirrigated areas; and control of damping off or collar rot [unspecified]. Sugarcane: Collection and multiplication of cvs; cv. trials; intercropping in spring and autumn cane; effects of harvesting dates on yield and quality; flat vs vertical planting under late-sown conditions; effect of management on the performance of ratoon crop; comparative study of single and double planting under flat and trench methods with and without tying; germination of setts; production potential of sugar cane; response of different cvs to N with and without gamma BHC; response of ratoon crop to N and K; effect of different herbicides on weed control and yield of spring-planted cane; requirement of weed-free period in autumn planted cane; weed control in autumn planted cane; intercropping sugarbeet with autumn planted cane; soil application of systemic insecticides for control of cane borer [Chilo sp. ]; incidence of early shoot borer (Chilo infuscatellus) and termites on spring-planted cane; incidence of stalk borer (C. auricilius) in spring-planted cane; efficacy of some systemic insecticides for control of cane borer; foliar application of insecticides for control of stalk borer; screening cvs for resistance to borers; mode of transmission and control of red rot [Glomerella tucumanensis]; screening of cvs against red rot; and disease control [unspecified] by sett and soil treatment.