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Fitting Pineapple ( Ananas comosus L.) with Rainfed Rice in the Cropping Sequence in Eastern India
National Academy Science Letters ( IF 1.2 ) Pub Date : 2019-07-17 , DOI: 10.1007/s40009-019-00820-2
O. P. Verma , S. Roychowdhury , S. K. Rautaray , M. Raychaudhuri , E. Antony , S. K. Ambast , P. S. Brahmanand

In eastern India, the majority of areas under rainfed ecosystem are left fallow after kharif rice mainly due to lack of availability of irrigation water. Under this situation, pineapple is a suitable crop due to its adaptation system of crassulacean acid metabolism for photosynthetic carbon fixation. Pineapple is a long-duration crop (16–18 months) with irregular flowering behaviour. Hence, the present study was undertaken to study the feasibility of growing pineapple crop after harvest of kharif rice in a yearly sequence at the Research Farm of ICAR-Indian Institute of Water Management, Mendhasal, Khurda (Odisha), for two consecutive years (2009–2010 and 2010–2011). Ethephon hormone was applied at 10-month stage of crop to induce uniform and early flowering. In addition to this general treatment, spray of planofix at 50 mg l−1 (after 15 days of ethephon application at 20 mg l−1) resulted in the maximum flowering (81.2%). Similarly, 79.9% flowering was recorded when the plants were grown under shade. Also, spray of planofix resulted in the highest fruit yield (16.9 t ha−1) of pineapple due to increased fruit size. Fruit quality in terms of total soluble solids (14.85%) and vitamin C (150.18 mg kg−1) content was improved, and fruit acidity (0.58%) was decreased with spray of planofix. Therefore, pineapple can be grown in rice-based cropping system after harvest of kharif rice with suitable hormonal treatment, which will bring down the duration of pineapple crop to about 14 months (8 months in nursery and 6 months in main field).

中文翻译:

在印度东部的种植顺序中,将菠萝(Ananas comosus L.)与雨养稻米配合使用

在印度东部,海里发水稻后,大部分处于雨育生态系统的地区都处于休耕状态,这主要是由于缺乏灌溉水。在这种情况下,菠萝是适合的农作物,因为它具有适应性的克拉苏糖酸代谢系统,可以固定光合作用的碳。菠萝是一种长时期的作物(16-18个月),开花行为不规则。因此,本研究旨在研究收获哈里夫后种植菠萝作物的可行性。连续两年(2009–2010年和2010–2011年)在库尔达(奥里萨邦,门达萨尔)的ICAR印度水资源管理研究所的研究农场每年一次。在作物的10个月阶段施用乙烯利激素,以诱导均匀和早开花。除此一般处理外,以50 mg l -1喷洒Planofix (在施加20 mg l -1的乙烯利15天后)可达到最大开花(81.2%)。类似地,当植物在阴凉处生长时,记录的开花率为79.9%。此外,由于果实尺寸的增加,使用Planofix喷雾可以使菠萝的果实产量最高(16.9 t ha -1)。总可溶性固形物(14.85%)和维生素C(150.18 mg kg -1)的水果品质)的含量提高了,而喷洒了平果固定剂则降低了水果酸度(0.58%)。因此,在收获了卡里夫大米之后,可以通过适当的激素处理在基于水稻的种植系统中种植菠萝,这将使菠萝的种植时间缩短至大约14个月(苗圃为8个月,主田为6个月)。
更新日期:2019-07-17
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