N Save Nature to Survive 11(4): 2323-2326, 2016 (Supplement on Agronomy) www.thebioscan.com 2323 GROWTH AND YIELD OF SPROUTING BROCCOLI ( GROWTH AND YIELD OF SPROUTING BROCCOLI ( GROWTH AND YIELD OF SPROUTING BROCCOLI ( GROWTH AND YIELD OF SPROUTING BROCCOLI ( GROWTH AND YIELD OF SPROUTING BROCCOLI ( BRASSICA BRASSICA BRASSICA BRASSICA BRASSICA OLERA OLERA OLERA OLERA OLERA CEA L CEA L CEA L CEA L CEA L . V . V . V . V . V AR AR AR AR AR . IT . IT . IT . IT . IT ALIC ALIC ALIC ALIC ALIC A A A ) V ) V ) V ) V ) VARIETIES UNDER OPEN FIELD ARIETIES UNDER OPEN FIELD ARIETIES UNDER OPEN FIELD ARIETIES UNDER OPEN FIELD ARIETIES UNDER OPEN FIELD AND NA AND NA AND NA AND NA AND NATURALL TURALL TURALL TURALL TURALLY VENTILA Y VENTILA Y VENTILA Y VENTILA Y VENTILATED POL TED POL TED POL TED POL TED POLYHOUSE CONDITION YHOUSE CONDITION YHOUSE CONDITION YHOUSE CONDITION YHOUSE CONDITION RIYA THAKUR*, S. S. KUSHWAH, R. K. SHARMA AND O. P. SINGH College Of Horticulture, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Mandsaur - 458 001, Madhya Pradesh e-mail: riyath29@gmail.com INTRODUCTION Sprouting broccoli (Brassica oleracea var. italica L.) is a native of eastern Mediterranean region, derived from ancient forms of Brassica oleracea. Italy is a centre of diversification (Singh and Nath, 2012). Broccoli is an Italian word originated from Latin ‘Brachium’ meaning an arm or branch (Thamburaj and Singh, 2013). It is known for its taste, flavor, nutritive and medicinal properties. Broccoli and other cole crop like cauliflower contain the compound namely, glucoraphanin, which can be processed into an anti-cancer compound sulphoraphane (Shiwani et al., 2016). The curd of broccoli contains following nutrients per 100 g of edible portion; moisture 89.9 g, carbohydrates 5.5g, fat 0.2g, protein 3.3g, vitamin A 3500 IU, thiamine 0.05 mg, riboflavin 0.12 mg, phosphorous 79 mg, calcium 80 mg, iron 0.8 mg, ascorbic acid 137 mg and calories 37g (Singh and Nath, 2012). Protected cultivation is a most existing approach to produce high value vegetables. Controlled Environment Agriculture (CEA) is highly productive, conservative of water, fertilizers and land and also protective of the environment like the temperature, humidity, light. By adopting protected cultivation technology, the growers can look forward to a better and additional remuneration for high quality produce (Ughade et al., 2016). In recent years sprouting broccoli cultivation has gained momentum in India, because of its high nutritive values and popularity among tourist. Sprouting broccoli is a cool season crop and very sensitive to high temperature which causes the heads to be distorted and unevenly-sized flower buds on inflorescence, making it a high-risk crop (Bjorkman and Pearson, 1998). The environmental factor like temperature has great influence on yield and yield attributing characters (Kumar et al. 2013). Different cultivars have different growth and yield parameters varying with growing conditions (Thapa et al. 2013). Open field cultivation is often affected with sudden adverse changes in weather conditions. Whereas natural ventilated polyhouses provides protection from such conditions. Therefore, present study was conducted to evaluate the growth and yield of sprouting broccoli varieties under open field and naturally ventilated polyhouse condition. MATERIALS AND METHODS The investigation was carried out at the Research Field of the Department of Vegetable Science, College of Horticulture, Mandsaur, (M.P), during 2014-15. The experiment was laid out in a Factorial Randomized Block Design having two environmental conditions viz, Open field (E 1 ) and naturally ventilated polyhouse (E 2 ) with six varieties i.e. Palam Haritika (V 1 ), Palam Kanchan (V 2 ), Palam Samridhi (V 3 ), Palam Vichitra (V 4 ), MSB-12 (V 5 ) and Ganesh (V 6 ) with three replications. The seeds were sown in raised beds on 4 th Sep 2014. One month old seedlings were transplanted at spacing of 50cm×45 cm. Fertilizer was applied at the rate of 100 kg N, 80 kg P 2 O 5 and ABSTRACT An experiment was conducted to study the performance of six varieties (Palam Haritika, Palam Kanchan, Palam Samridhi, Palam Vichitra, MSB-12 and Ganesh) of broccoli with two environmental conditions (open field and naturally ventilated polyhouse) during Rabi season 2014-15 at College of Horticulture, RVSKVV, Mandsaur (M.P.). The experiment was laid out in Factorial Randomized Block Design with three replications. The E 2 environmental condition has maximum curd yield of 256.82q/ha. Among the varieties maximum dry weight of plant at curd stage (161.92g) and harvesting stage (279.33g), SPAD value (67.10) and curd yield (375.41q/ha) were found in Palam Kanchan whereas plant spread (10852.40cm 2 ) in Palam Vichitra. Highest stem diameter was recorded in case of Palam Haritika at curd initiation (3.33cm) and harvesting stage (3.79cm). Interaction effect of varieties with environmental conditions was significant for all the characters except curd yield. Treatment combination E 2 V 2 showed superior performance for curd yield. Therefore, it may be concluded that the performance of varieties is better in polyhouse than the open field. KEYWORDS Sprouting broccoli Environmental Condition Polyhouse Open field Varieties Received on : 10.07.2016 Accepted on : 20.10.2016 *Corresponding author