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Subject: Vegetable Science × Author: Thapliyal, Alok × End date: 2009 × Start date: 2004 × Type: Thesis ×
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    ThesisItemOpen Access
    Efficacy of bio-composts on yield and quality of cabbage (brassica oleracea var. capitata)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-07) Thapliyal, Alok; Uniyal, S.P.
    The present investigation was conducted during Kharif 2004-05 at Vegetable Research Block (GBPUA&T), Hill Campus, Ranichauri, Tehri Garhwal (Uttaranchal), to study the efficacy of biocomposts on growth, yield and quality of cabbage cv. S-96. The experiment was laid out in Randomized Block Design, having nine treatment combinations with three replications. The combinations were consisted of FYM, vermicompost, FYM along with urea as nitrogen source and bioagents viz. Pseudomonas fluorescens and Trichoderma harzianum. During the course of investigation observation for stalk length, number and weight of non wrapper leaves, leaf area index, net head weight, core volume, yield per hectare, ascorbic acid & chlorophyll content, photosynthesis and disease incidence were recorded. All treatments were differed in their yield potential. Highest yield of heads of 415.83 q ha-1 was obtained in treatment T8, to which 120 kg nitrogen ha-1 (recommended dose) was supplied through Pseudomonas fluorescens inoculated recommended dose of FYM (20 t ha-1) along with balance 20 kg nitrogen ha-1 as basal urea. The higher yield in the treatment was obtained due to more weight of heads. The same treatment also showed more ascorbic acid content in their heads. Similarly, more chlorophyll content along with highest rate of photosynthesis was also noticed in treatment T8. In general, Trichoderma harzianum inoculated biocomposts showed better control of Rhizoctonia solani in the experiment. So, based on the findings of present investigation it can be concluded that for more head weight along with higher ascorbic acid content and yield, the S-96 cv. of cabbage should supplied 120 kg nitrogen dose in form of Pseudomonas fluorescens inoculated 20 t FYM along with 20 kg nitrogen ha-1 as basal urea. But considering the importance of completely organically grown cabbage crop in Uttaranchal, the vegetable growers can opt an alternative recommendation i.e. the farmer should apply 120 kg nitrogen ha-1 in the form of Pseudomonas fluorescens or Trichoderma harzianum inoculated FYM in order to get higher yield and return from the crop.
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    ThesisItemOpen Access
    Stability analysis for growth, yield and quality characters in tomato (Solanum lycopersicum L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-08) Thapliyal, Alok; Singh, J.P.
    Thirty three genotypes of tomato were evaluated in Randomized Block Design (RBD) with three replications to study the stability behaviour of tomato genotypes at Vegetable Research Centre, Pantnagar under three environmental conditions (summer and winter of 2006 and winter of 2007) for thirteen characters namely, plant height, number of primary branches per plant, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), locules per fruit, number of fruits per plant, weight of fruits per plant, fruit yield (q/ha) and TSS (%). The analysis of variance revealed the presence of genotype-environment interaction for ten characters namely, plant height, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), fruit weight per plant, number of fruits per plant and yield (q/ha). The linear component of G × E interaction were highly significant for days to 50% flowering, number of flower clusters per plant, average fruit weight, fruit weight per plant, number of fruits per plant and yield (q/ha), The non-linear component of G × E interaction were highly significant for plant height, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), weight of fruits per plant, number of fruits per plant and fruit yield (q/ha). The deviation from regression was significant for most of the genotypes for plant height, days to first harvest, days to last harvest, fruit weight per plant, number of fruits per plant and yield (q/ha). Two genotypes namely, Ajeet-11 and VR-20 were adjudged superior and also stable for the character mean fruit weight. For number of fruits per plant, BCTH-62, BSS-437, KS-227, KS-229 and Pant T-7 were found to be suitable for high yielding environments. For yield (q/ha), Ajeet-11, PTH-68, BSS-571, HATH-9, Pant T-8 and Pant T-7 appeared promising under favorable environment. The genotypes Aruna, ATL-02-39, Pant T-7 and Pant T-10 were found promising for TSS (%) over a wide range of environments. The genotype Pant T-8 and Pant T-7 was found most stable with regards to yield. Despite of yield Pant T-8 also showed stability for fruit weight per plant, however, Pant T-7 showed stability for another yield attributing character i.e., number of fruits per plant. Similarly, the genotypes CLN 2413R and CLN 2026M also exhibited stability for two important yield contributing traits i.e., mean fruit weight and fruit weight per plant.