Studies on evaluation of IR64-AG line under different methods of establishment of direct seeded rice in Eastern India.
| dc.contributor.advisor | Singh, U. P. | |
| dc.contributor.author | Kushwaha, Navin Kumar | |
| dc.date.accessioned | 2019-08-09T10:40:56Z | |
| dc.date.available | 2019-08-09T10:40:56Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Rice is commonly grown by transplanting seedlings into puddled soil which is labour, water, and energy intensive and is becoming less profitable. It also deteriorates the physical properties of soil adversely and affects the performance of succeeding upland crops, and contributes to methane emissions. These are the major reasons to shift from transplanting towards direct seeded rice (DSR). Though rice growing by DSR in lowland areas often encounter flooding and water logging conditions when it rains immediately after direct seeding which cause drastic reduction in yield or even crop failure because of high sensitivity of rice to the anaerobic conditions. So the varieties that have ability of anaerobic germination could be beneficial which increases production and productivity of farmers. So in this context, IR64 AG is one of such lines and is tested in this experiment. The experiment was laid out in split-plot design with three replications. The treatments consisted of three establishment methods of direct seeding i.e. direct dry seeding in unpuddled condition (D1), drum seeding in puddled wet condition (D2) and broadcasting in puddled wet condition (D3) in main plot and seven rice varieties i.e. IR64 AG (V1), IR64 AG2 (V2), IR64 AG1 (V3), IR64 SUB1 (V4), IR64 (V5), Sarjoo 52 (V6) and NDR 97 (V7) were kept in sub-plot. After sowing the field was submerged for 21 days. The initial plant population observed was more under D2 method after desubmergence of water. The height of varieties were non-significant under different methods of establishment but the no. of tillers m-2 was significantly more in D2 and it was less in D1. Among varieties V3 followed by V6 and V1 had more height and tillers than other varieties. Yield and yield attributes influenced by different establishment methods were comparable. However, V3, V6 and V1 produced more yield than other tested varieties. Hence, direct seeding of rice by drum seeding and broadcasting under puddled soil with IR64 AG lines and Sarjoo 52 may be helpful under anaerobic condition for enhancing production and profit. | en_US |
| dc.identifier.citation | Direct seeded rice | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810120669 | |
| dc.keywords | Direct seeded rice, anaerobic germination, and IR64 AG. | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 71p. | en_US |
| dc.publisher | Department of Agronomy Institute of Agricultural Sciences Banaras Hindu University, Varanasi | en_US |
| dc.sub | Agronomy | en_US |
| dc.subject | null | en_US |
| dc.theme | Direct seeded rice | en_US |
| dc.these.type | M.Tech. | en_US |
| dc.title | Studies on evaluation of IR64-AG line under different methods of establishment of direct seeded rice in Eastern India. | en_US |
| dc.type | Thesis | en_US |