Browsing by Author "Chavan, Dnyaneshwar Laxman"
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ThesisItem Open Access Heterosis and combining ability studies in newly developed hybrids of chilli (capsicum annuum L.)(Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2019-08-23) Chavan, Dnyaneshwar Laxman; Waskar, D.P.A study was undertaken to estimate heterosis and combining ability in sixteen diverse genotypes of chilli viz., BSPRL-066, BSPRL-171, BSPRL-188, BSPRL-189, BSPRL-224, BSPRL-226, Parbhani Tejas, PBNC-1, Kokan Kirti, Phule Jyoti, G-4, Bydagi, Bydagi-341, Teja, Pusa Jwala and Pusa Sadabahar and their hybrids by following line x tester cross analysis. Sixty hybrids along with sixteen genotypes and three standard checks (BSS-273, BSS-355 and BSS-378) were evaluated during 2017-2018 at Beej Sheetal Research Farm and All India Coordinated Research Project on Vegetable Crops in VNMKV, Parbhani. Observations were recorded for nineteen quantitative characters Viz., plant height, number of primary branches per plant, days to first flowering, days to 50% flowering, days to first fruit repining, number of fruit per plant, fruit weight (g), fruit length(cm), fruit diameter (mm), pedicel length (cm), fruit weight per plant (g), dry fruit weight per plant (g), fruit yield per plot, dry fruit weight, number of seed per fruit, number picking per plant, dry fruit yield per plot, green fruit yield per hectare, dry fruit yield per hectare. The heterosis estimates revealed that significant positive heterosis over M.P, B.P and S.C observed for plant height, fruit diameter, number of seed per fruit, and green fruit yield per plot characters. -41.63 per cent to 42.37 percent heterosis over M.P, -47.46 per cent to 41.23 percent heterosis over B.P and -47.80 per cent to 3.43 per cent heterosis over S.C was observed for green fruit yield per plot. Hybrids BSPRL-171 x Phule Jyoti, BSPRL-171 x PBNC-1, BSPRL-171 x Parbhani Tejas and BSPRL-188 x Phule Jyoti showed maximum heterosis over B.P and S.C for green fruit yield per plot and other contributing characters. For the combining ability analysis, the variance due to g.c.a and s.c.a were significant for all the characters except fruit diameter characters of s.c.a variance are non significant variance. Among the parents BSPRL-171, BSPRL-066, BSPRL-188, Phule Jyoti, Pusa Sadabahar, PBNC-1, and Parbhani Tejas were found good general combiner and for fruit yield and yield contributing characters. Hybrids BSPRL-066 x Phule Jyoti, BSPRL-171 x Phule Jyoti, BSPRL-171 x Bydagi, BSPRL-171 x G-4, BSPRL-226 x Kokan Kirti, BSPRL-188 x Bydagi and BSPRL-189 x Bydagi were found to be having good s. c. a effects for fruit yield and yield contributing characters and useful in further breeding programme. The fruit yield per plot had significant positive genotypic and phenotypic correlation with plant height, number of primary branches per plant, days to first flower, days to 50% flower, number of fruit per plant, fruit weight per plant, number of picking per plant and dry fruit yield per plot. The fruit yield per plot exhibited desirable negative genotypic and phenotypic correlation with fruit weight, fruit length and fruit diameter.ThesisItem Open Access Studies on effect of different organic manures on growth yield and quality of onion (allium cepa L.)(Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2015-05-30) Chavan, Dnyaneshwar Laxman; Chavan, N.H.The present investigation entitled “Studies on effect of different organic manures on growth, yield and quality of onion {Allium cepa L.)” was carried out during kharif season-2014 at the Instructional-Cum-Research Farm, Department of Horticulture, College of Agriculture, Latur. The experiment framed was intended to study the effect of different organic manures on growth, yield and quality of onion. The onion variety ‘N-53’ was used for the study. The experiment was laid out in Randomized Block Design (RBD) with eleven treatments of different organic manures comprises Control 100% N through urea (Ti), 100% N through FYM (T2), 100% N through vermicompost (T3), 100% N through poultry manure (T»), 100% N through neem cake (T5), 50% N through FYM + 50% N through vermicompost (Tg), 50% N through FYM + 50% N through poultry manure (T7), 50% N through FYM + 50% N through neem cake (Tg), 50% N through vermicompost + 50% N through poultry manure (T9), 50% N through vermicompost + 50% N through neem cake (T10) and 50% N through poultry manure + 50% N through neem cake (Tn) replicated thrice. The periodical observations on growth yield and quality parameters were recorded. The results of the present investigation indicated that, the combined application of organic manures has significant influence the growth, yield and quality CONTD parameters of onion as regards to the treatment 50% N through poultry manure + 50% N through neem cake (Tn) was found superior for most of the traits under study and it was at par with treatment T9, T7 and Tj. The maximum values of growth parameters like plant height (57.18 cm) and number of leaves (9.90) at harvest were recorded in treatment (Tn). The yield contributing characters like weight of bulb (126.64 g), yield per plot (19.49 kg), yield per hectare (54.13 t) and quality parameters like total soluble solid (12.73%), total sugar (11.41%), were maximum in treatment 50% N through vermicompost + 50% N through poultry manure (T9) and found significantly superior over other treatments. The economic study showed that, for an area of one hectare the higher values of gross monetary returns (Rs. 5,41,300) and net monetary returns (Rs.3,49,194) in treatments (T9) and maximum B: C (3.23) ratio were observed in the treatment Ti and it was closely followed by (2.81) in treatment of (T9). Hence, it can be concluded that, for getting optimum growth, higher yield, better quality with maximum monetary returns and B: C ratio in respect of organic manures from the onion, the crop should be supplied with the recommended dose of N,P,K, fertilizers (100:50:50 kg/ha), in which the 50% quantity of N should applied through vermicompost and 50% N through poultry manure.