Leaves of Gossypium hirsutum

A total of 27 cotton Gossypium hirsutum genotypes were field evaluated during 2018-19 at Regional Agricultural Research station Nandyal under AICRP-Cotton programme for their reaction towards sucking pests, leaf hopper Amrasca devastans Distant in particular and bollworms. Results revealed that all the test genotypes were moderately tolerant towards sucking pest particularly leaf hoppers and exhibited below economic threshold level populations but among them, genotype CNH-2052 had recorded lowest leafhopper population of 2.

7p chauchaungayxua11 23-03-2021 8 1   Download

A total of 19 bacterial endophytes were isolated from leaves of cotton (Gossypium hirsutum) and characterized for plant growth promoting traits viz., siderophores production, phosphate solubilization, IAA and ammonia production; and preliminarily screened for chitinase, gelatinase, protease and lipase.

13p gaocaolon9 22-12-2020 27 3   Download

Present study was investigated to elucidate the role of antioxidative enzymes in imarting resistance to sucking pest attack. Antioxidative enzymes viz. SOD, CAT, POX, GR and APX were estimated in the leaves (2nd leaf & 6th leaf) of cotton genotypes infected by sucking pests at 50, 60 and 68 days after sowing (DAS) stage. The antioxidative enzyme activity before infection was maximum in 2nd & 6 th leaves of G. arboreum genotypes followed by G. hirsutum resistant genotypes and minimum in G. hirsutum susceptible genotypes.

14p nguathienthan3 27-02-2020 18 0   Download