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A study was conducted during the period of June 2015 to January 2017 at college orchard of Tamil Nadu Agricultural University, Coimbatore with an objective to evaluate tomato (Solanum lycopersicum L.) genotypes suitable for polyhouse condition. Fifty one genotypes received from diverse agro climatic regions were used for evaluation of twenty characters in a randomized block design with two replications. The genotypes were assessed for plant height, days to first flowering, number of flowers per truss, number of fruits per cluster, number of fruits per plant, fruit setting percentage, number of harvest, individual fruit weight and yield per plant. The analysis of variance showed that there existed significant differences among the genotypes with all character tested. Among the genotypes, plant height ranged from 84.0 (IIVR EC 620464) to 476.0 cm (NBPGR HYD EC 165700). Early flowering was recorded in IIVR PB Kaghri (26.88 days). Number of flowers per truss ranged from 4.00 (Punjab Gourav) to 8.65 (IIHR 2042). The highest number of fruits per cluster was recorded in IIHR 2042 (7.61). Number of fruits per plant ranged between 5.00 in Punjab Gourav and 48.50 in NBPGR HYD IC 249514.The individual fruit weight ranged from 3.50 to 125.50 g in NBPGR HYD IC 249514 and in Pant Polyhouse Hybrid Tomato1 respectively. Yield per plant ranged from 0.20 kg (NBPGR HYD EC 145057) to 3.63 kg (IIVR EC 521038). From the study it was concluded that the tomato genotypes NBPGR HYD EC 165700 (476.0 cm) IIVR EC 521038 (3.63 kg) and IIHR 2042 (2.36 kg) could be most promising in terms of growth and yield under poly house condition.

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Cassava or tapioca (Manihot esculenta Crantz.) is one of the most important tuber crops belongs to the family Euphorbiaceae which is grown widely in tropical countries. This crop is cultivated both in irrigated and rainfed conditions and has wider adaptability to poor soil condition, tolerance to drought, pest and diseases. A field experiment was conducted at Tapioca and Castor Research Station, Yethapur with an objective to identify the suitable K efficient lines of cassava with maximum growth, tuber yield and starch content. The trial was laid out in Randomized Block Design (RBD). The eight K efficient accessions are evaluated along with Sree Athulya and local check (YTP 1) for its growth parameters viz., plant height (cm), stem girth (cm), and yield traits viz., number of tubers, tuber yield plant -1 (kg) and quality parameters viz., starch content (%) and HCN content (ppm). The recommended dose of fertilizer for cassava is 90:90:240 kg of NPK ha -1 . In this experiment, K fertilizer was not applied to the plots and N and P fertilizers were applied as per the recommendations. The results revealed that the maximum plant height (217.80 cm) and stem girth (14.3 cm) was recorded in YTP 1. The maximum number of tubers (10.2) was recorded in TCa14-4 and the lengthiest tuber (40.6 cm) was observed in YTP 1. Among the K efficient lines evaluated, maximum tuber yield (42.90 t ha -1 ) and minimum tuber yield (31.47 t ha -1 ) was recorded in TCa14-6 and TCa14-8 respectively. The highest starch content (30.90%) was recorded in TCa14-5 and the lowest starch content (26.0%) was recorded in TCa14-2. The maximum K uptake was exhibited by TCa 14-6.

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