Browsing by Author "Kalpana, M."
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Item Coconut + Cocoa intercropping -for doubling farmer's income(2017-11) Madhavi Latha, P.; Maheswarappa, H.P.; Kalpana, M.; Dilip Babu J.Item Coconut - Beyond copra, oil and water(2012-03) Dorajee Rao, A.V.D.; Ramakrishna, Y.; Kalpana, M.Item Coconut variety Kalpa Pratibha(2009-05) Niral, V.; Augustine Jerard, B.; Samsudeen, K.; Arunachalam, V.; Kumaran, P.M.; Ratnambal, M.J.; Rao, E.V.V.B.; Pillai, R.V.; Satyabalan, K.; Nampoothiri, K.U.K.; Nair, M.K.; Bavappa, K.V.A.; Nair, R.V.; George V. Thomas; Reddy, V.S.K.; Goutham, B.; Kalpana, M.; Raghava Rao, D.V.; Nageswarao, M.B.; Srinivasulu, B.; Vaithilingam, R.; Natarajan, C.; Kumar, M.; Meenakshi Ganesan, N.; Nagwekar, D.D.; Arulraj, S.;Item Evaluation of Certain Coconut Crosses for Heterosis(2002) Rao, D.V.R.; Hameed Khan, H.; Srinivasulu, B.; Rao, N.B.V.C.; Kalpana, M.The extent of heterotic effects in coconut crosses involving different parent combinations of 16 crossess and 7 characters was studied. The studies revealed the prevalence of wide range of variability and heterosis in the coconut crosses. The level of heterosis with respect to different characters in the crosses studied and its. significance in the coconut breeding programme are discussed in this paper.Item Evaluation of Promising Hybrids and Varieties of Coconut in East Coast Region of Andhra Pradesh(2018) Ramanandam, G.; Padma, E.; Kalpana, M.; Ravindra Kumar, K.; Rao, N.B.V.C.Item Performance of coconut based cropping systems for sustainable productivity under Coastal Ecosystem of Andhra Pradesh(2004-12) Rao, D.V.R.; Kalpana, M.; Srinivasulu, B.; Khan, H.H.Two coconut based multispecies cropping systems consisting of Model-I (Coconut + Cinnamon + Pepper + Cocoa + Banana + Pineapple + E.F.Yam + Colocasia + Turmeric) and Model-II (Coconut + Pepper + Banana + Pineapple + E.F.Yam + colocasia + Turmeric) were evaluated comparing with coconut monocropping system (Model-III) for coconut yield, nut quality and sustained productivity and economic viability for four consecutive years (1999-2003) at ARS, Ambajipeta. Data on mean nut yield/palm/year revealed that the highest yields were registered by the palms of Model-I (102.7 nut/palm/ year) followed by Model-II (96.47 nut/palm/year) compared to only 7 1.14 nut/palm/year in Model-III (monocropping) accounting for an yield increase of 35.60 to 44.36 per cent. Data on annual nut yield exhibited a gradual increase year after year from 1999- 2000 up to 2002-03 indicating the sustainability of the cropping system. The nut yield increased, by 27.04 per cent in Model-I and 18.47 per cent in Model-II compared to only 3.63 per cent in Model-III prior to the experimental values. The economic analysis and employment generation studies revealed that the maximum returns and maximum number of mandays/ha/year were obtained from Model-I (Rs.47,589 and 680 mandays) followed by Model-II (Rs. 39,496 and 569 mandays) with Model-III putting up the lowest returns and mandays (Rs. 9,477 and 166 mandays). Considering the monetary returns and sustainability of the coconut yields, cropping system Model-I followed by Model-II were found suitable and these models may be recommended to the coastal ecosystem of AP.Item Performance of Medicinal and Aromatic Crops as Intercrops in Coconut Garden under East Coast of Andhra Pradesh(2018) Padma, E.; Ramanandam, G.; A.V.D. Dorajee Rao; Kalpana, M.; Maheswarappa, H.P.Item Potential coconut (Cocos nucifera) hybrids for yield and quality for coastal region of Andhra Pradesh (India)(2017-08) Ramanandam, G.; Ravindra Kumar, K.; Padma, E.; Kalpana, M.; Maheswarappa, H.P.Item Screening of coconut germplasm against coconut eriophyid mite, Aceria guerreronis Keifer in Andhra Pradesh(2010) Sujatha, A.; Chalam, M.S.V.; Kalpana, M.Eight tall coconut varieties (45 years age) and 17 new hybrids (15 years age) available at HRS, Ambajipeta were screened for resistance against coconut eriophyid mite, Aceria guerreronis Keifer for four years [2004 to 2007] under natural conditions of coastal ecosystem ofAndhra Pradesh. Out ofthe eight varieties; the lowest mite damage index was recorded in Laccadive Ordinary (LO) -1.99, Andaman Ordinary (AO) -2.10, Philippines Ordinary (PO) -2.23 and East Coast Tall (ECT) -2.24 and West Coast Tall (WCT) -2.54 while Laccadive Micro (LM) -2.43 recorded the highest damage index. Among the 17 coconut hybrids screened, ECT x GB (Godavari Ganga-the first hybrid from AndhraPradesh) -1.87, LO x COD -1.95, VHC-I (ECTx MGD) -2.08 recorded the lowest mite damage whereas, LM x GB -2.88, Java x GB -2.83 and Fiji x GB -2.75 recorded the highest damage among the crosses.Item Standardization of fertilizer requirement through fertigation for coconut under Krishna Godavari zone of Andhra Pradesh(2019-12) Padma, E.; Ramanandam, G.; Ravindra Kumar, K.; Kalpana, M.; N.B.V. Chalapathi Rao; Maheswarappa, H.P.