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ThesisItem Open Access Growth, yield and water productivity of bed-planted summer moong in relation to irrigation regimes(Punjab Agricultural University, Ludhiana, 2014) Navneet Kaur; Mahal, S. S.A field experiment entitled “Growth, yield and water productivity of bed-planted summer moong in relation to irrigation regimes” was conducted at Students’ Research Farm, Department of Agronomy, Punjab Agricultural University, Ludhiana, during Rabi 2014. The soil of the experimental site was loamy sand in texture, normal in soil reaction and electrical conductivity, low in organic carbon and available nitrogen, medium in available phosphorous and potassium. The field capacity and permanent wilting point of 0-180 cm soil profile were 37.88 and 13.13 cm, respectively, with an average bulk density of 1.59 g cm-3. The field experiment was laid out in randomized complete block design with four replications. There were three dates of sowing; D1 (20 March), D2 (30 March) and D3 (10 April) and four irrigation schedules; I1 (0.6 IW/CPE), I2 (0.8 IW/CPE), I3 (1.0 IW/CPE) and I4 (1.2 IW/CPE) with IW=5.0 cm. The results revealed that D1 recorded significantly higher plant height, dry matter accumulation and leaf area as compared to D3. All the yield attributing characters viz. pods per plant, pod length, number of seeds per pod and 1000-seed weight were significantly more in D1 than D3 sowing date. Maximum seed yield was observed under D1 sowing date which was significantly higher than D2 and D3. The seed yield increase in D1 was 9.3 and 20.9 per cent as compared to D2 and D3, respectively. Crop water use was to be higher under D3 sowing date due to higher temperature conditions prevailing at that time. Likewise, water use efficiency and apparent water productivity were also higher under D1. Among the various irrigation schedules, higher values of all the growth characters were found under I4 irrigation schedule which was significantly more than I2 and I1 and statistically at par with I3. Similar trends were observed under various yield attributing characters viz; pods per plant, pod length, number of seeds per pod and 1000-seed weight. I4 was at par with I3 and produced the highest seed yield which was significantly better than I2 and I1. Crop water use was more under I4 due to more number of applied irrigations. However, apparent water productivity was higher under I1 irrigation schedule.