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Issue DateTitleAuthor(s)
2012-06-30The variability of reproductive traits was studied in Gynandropsis pentaphylla (Capparaceae), an important medicinal herb of tropical distribution believed to have originated from Africa, and found that there was no significant difference between the traits in a natural stand and the control. The hierarchical emergence was bisexual homogamous (hermaphrodite) and heterogamous flowers interspersed by unisexual male flowers at a plant level irrespective of branching. Pollination is by vibrations either through anemophily directly or entomophily indirectly. Apis cerena indica and anthophorid bee visit both the anthers and the petals and former was most helpful as a pollinating agent (73% visits to petals), and as they land on the petal they cause vibrations which in turn result to pollen dehiscence. The anthophorid bee is a pollen thief (95.85% visits to anthers without touching stigma of gynophore). The bisexual homogamous flowers had high female success (58.33%) as against anthers clipped (x = 39.01) indicate high selfing ability supports reproductive assurance hypothesis. The bisexual protogynous flowers had same fruit-set when their anthers were removed or intact (x = 71.78 and x = 66.35 respectively). Intriguingly, seed number per pod of selfed pods was higher than those outcrossed. Fresh seeds (2 months old) had more dormancy compared to older seeds (12 months old), which indicates that the older seeds germinate readily compared to fresh seeds. Priming with water, GA3 (250ppm) and Ethrel (50ppm and 100ppm) could improve the germinability of old and fresh seeds up to 16% and 10% respectively compared to control (6.77 and 2.92 respectively). Supplementation of sucrose with 15 per cent had good pollen germination for all types of flowers whilst 30 % was better for pollen from protogynous flowers. The molecular analysis, using OPB – 15 primer of RAPD, confirmed siring of seeds by foreign pollen as compared to selfed homogamous seeds.Dr. S N. VASUDEVAN; DEEPAK S. AIRANI
2013-06-30COMBINING ABILITY OF INBRED LINES DERIVED FROM DIFFERENT POPULATIONS OF MAIZE (Zea mays L.)P. H. KUCHANUR; MUTTAPPA HOSAMANI
2012-06-30STUDIES ON ISOLATION AND SELECTION OF EFFICIENT PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) FOR IMPROVING THE GROWTH AND YIELD OF TOMATO (Solanum lycopersicum L.)MAHADEVASWAMY; VISHWANATH UPPERI
2013-06-30PLANT GROWTH PROMOTIONAL ACTIVITY OF FREE LIVING NITROGEN FIXERS ISOLATED FROM RHIZOSPHERE SOILS OF INTEGRATED FARMING SYSTEMMAHADEVA SWAMY; SIDDAPPA H. MELLIGERI
2012-06-30A STUDY ON LIVELIHOOD SYSTEMS OF MARGINAL FARMERS AND LANDLESS LABOURERS IN RAINFED ECOSYSTEM OF KOPPAL DISTRICT OF KARNATAKA STATEG. N. MARADDI; SUNIL KUMAR GOWDA
2014-06-30STUDIES ON BIO-EFFICACY AND PHYTOTOXICITY OF PENOXSULAM + CYHALOFOP –BUTYL 6% OD IN DIRECT DRY SEEDED RICE (Oryza sativa L.)B.G. MASTHANA REDDY; VINAY B. PATIL; B.K. DESAI, UMESH, M.R,MD. IBRAHIM
2012-06-30STUDIES ON THE EFFECT OF ORGANIC SEED TREATMENT ON SEED QUALITY OF CEREALS DURING STORAGEN. M. SHAKUNTALA; SHANKRAYYA
2015-06-30SEED POLYMERIZATION WITH Zn AND Fe NANOPARTICLES IN PIGEONPEAS. N. VASUDEVAN; PRADEEP KORISHETTAR; N. M. SHAKUNTALA, S. R. DODDAGOUDAR,SHARANAGOUDA HIREGOUDAR,KISAN B.
2014-07-30SOIL FORMATION ALONG A TOPOSEQUENCE OVER A SCHIST LANDSCAPEH. V. RUDRAMURTHY; VEERESH; K. BASAVARAJ, SATYANARAYANA RAO,N. L. RAJESH)
2013-06-30SURVEY AND MANAGEMENT OF MAJOR INSECT PESTS OF SWEET ORANGEPRAMOD KATTI, A. NAGANAGOUD, A. C. HOSAMANI; SHWETHA SURPUR