VARIETAL PERFORMANCE OF WHEAT (Triticum aestivum L.) CULTIVARS TO DIFFERENT IRRIGATION SCHEDULES UNDER HAT ZONE CONDITIONS OF A.P.
| dc.contributor.advisor | D. SEKHAR | |
| dc.contributor.author | P. VENKATA SWAMI RAMUNAIDU | |
| dc.date.accessioned | 2023-11-16T13:04:51Z | |
| dc.date.available | 2023-11-16T13:04:51Z | |
| dc.date.issued | 2023-11-15 | |
| dc.description.abstract | A field experiment entitled “VARIETAL PERFORMANCE OF WHEAT (Triticum aestivum L.) CULTIVARS TO DIFFERENT IRRIGATION SCHEDULES UNDER HAT ZONE CONDITIONS OF A.P.” was carried out on sandy clay soils of the Regional Agricultural Research Station, Chintapalle of Acharya N. G. Ranga Agricultural University, Guntur during rabi, 2021-22. The experiment was laid out in split-plot design with three irrigation schedules as main plots and four varieties as sub plots with a total of twelve treatments and replicated thrice. Three irrigation schedules i.e., irrigation at CRI, maximum tillering, jointing, flowering and milking stages (M1), irrigation at CRI, flowering and milking stages (M2) and irrigation at CRI and milking stages (M3) were imposed in main plots and four varieties i.e., DBW-252(V1), HI-1544 (V2), HI-8759 (V3) and HI-8713 (V4) as subplots. Wheat crop was sown on thoroughly prepared experimental plot. The crop was supplied with recommended fertilizer dose of 120 kg N, 60 kg P2O5 and 40 kg K2O ha-1. At basal 60 kg of N and entire dose of P2O5 and K2O were applied. Remaining 60 kg of N was applied in two splits at 25 DAS and 45 DAS. Application of irrigation was done to the respective treatments as specified. Field operations such as weeding and plant protection measures were taken as per recommendations of ANGRAU. The data on plant height (cm), number of tillers m-2, drymatter production (kg ha-1), CGR (g m-2 day-1), days to 50 % flowering, spike length (cm), spike weight (g), number of productive tillers m-2, number of grains spike-1, number of filled grains spike-1, 1000 grain weight (g), grain, straw xv and biological yield (kg ha-1), harvest index (%), consumptive use (mm), soil moisture use rate (mm day-1), moisture use efficiency (kg ha-mm-1) and economics were recorded as per standard procedures. Data were analyzed using ANOVA and the significance was tested by Fisher's least significance difference. Plant height, number of tillers m-2, drymatter production (kg ha-1) and CGR (g m-2 day-1) values were found superior with five irrigations scheduled at CRI, maximum tillering, jointing, flowering and milking stages and among the varieties HI-8759 recorded the higher growth parameters which were on a par with HI-8713. Number of days taken to 50 per cent flowering was found early with application of irrigations scheduled at CRI, maximum tillering, jointing, flowering and milking stages. There was no significant difference among the varieties for number of days taken to 50 per cent flowering. Spike length and spike weight were found significantly higher with five irrigations scheduled at CRI, maximum tillering, jointing, flowering and milking stages and among the varieties DBW-252 recorded the maximum spike length and spike weight was highest with the variety DBW-252 and was at par with HI-8759. Number of productive tillers m-2, number of grains spike-1, number of filled grains spike-1 and 1000 grain weight were significantly highest in five irrigation schedules and lowest were recorded with two irrigation schedules and it remained on a par to three irrigation schedules in terms of number of grains spike-1 and number of filled grains spike-1. However, among the varieties significantly highest number of productive tillers and test weight were recorded with the variety HI-8759 and the lowest were recorded with DBW-252. Although DBW-252 recorded significantly highest number of grains and filled grains spike-1 and remained on a par with HI-8759 in terms of grains spike-1. Higher grain, straw and biological yields were recorded under five irrigation schedules. Despite of lower grain yield observed with two irrigations but straw yield remained statistically on a par with three irrigations. Biological yield was recorded significantly highest with five irrigation schedules and lowest with two irrigation schedules. The harvest index (%) was significantly highest with five irrigations and lowest with two irrigations. However, among the varieties HI-8759 recorded significantly higher grain and straw yield. Straw & biological yields remained at par with HI-8713. Harvest index of HI-8759 was significantly superior over all the varieties. Lowest grain, straw and biological yields were recorded with HI-1544. Consumptive use of water and soil moisture use rate were higher with five irrigation schedules followed by three and two irrigation schedules which were on par to each other. Among the varieties HI-8759 recorded significantly the higher consumptive use and on a par with HI-8713. xvi Scheduling two irrigations resulted in higher water use efficiency which was on par with three irrigation schedules. Among the varieties HI-8759 resulted in higher water use efficiency. Among different irrigation schedules, five irrigations scheduled at CRI, maximum tillering, jointing, flowering and milking stages recorded higher gross returns, net returns and benefit cost ratio over rest of the treatments. While, among the varieties HI-8759 recorded the higher gross returns, net returns and benefit cost ratio over rest of the varieties. The overall results of the experiment revealed that irrigation at five critical phenological stages viz., CRI, maximum tillering, jointing, flowering and milking stages for wheat resulted higher productivity in the High Altitude and Tribal Area zone of Andhra Pradesh. Wheat cultivar HI-8759 performed better in terms of economics and proved to be beneficial for the farmers of High Altitude and Tribal Area zone of Andhra Pradesh. | |
| dc.identifier.other | D6390 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810201275 | |
| dc.keywords | VARIETAL PERFORMANCE | |
| dc.keywords | WHEAT | |
| dc.keywords | IRRIGATION SCHEDULES | |
| dc.language.iso | English | |
| dc.pages | 152 | |
| dc.publisher | Acharya N G Ranga Agricultural University | |
| dc.relation.ispartofseries | D6390; D6390 | |
| dc.sub | Agronomy | |
| dc.theme | VARIETAL PERFORMANCE OF WHEAT (Triticum aestivum L.) CULTIVARS TO DIFFERENT IRRIGATION SCHEDULES UNDER HAT ZONE CONDITIONS OF A.P. | |
| dc.these.type | M.Sc | |
| dc.title | VARIETAL PERFORMANCE OF WHEAT (Triticum aestivum L.) CULTIVARS TO DIFFERENT IRRIGATION SCHEDULES UNDER HAT ZONE CONDITIONS OF A.P. | |
| dc.type | Thesis |