Vol. 12, Issue 4 (2023)

Author(s):
Renu, Anil Kumar, CS Dagar and Raj Singh

Abstract:
The field study was conducted in rabi 2019-20, experiment was comprised of four growing environment under Hisar condition i.e. as factor (A) namely (D1) -15^th November, (D2) – 30^th November, (D3) – 15^th December and (D4) – 30^th December, comprising four different cultivars factor (B) viz. (V1)- BH 393, (V2)-BH 902, (V3)- BH 946 and (V4)-BH 885. As prevailed weather condition which has been influenced the positive and negative relationship during crop growth, development and productivity under the semi-arid region. The mainly diurnal variable weather parameters are much influenced the crop growth, nutrient uptake and assimilation in the barley crop. The experiment was laid out in factorial RBD design with three replications. The crop sown on the first fortnight of November (D1) demonstrated high growth in terms of yield and yield-contributing characteristics, and the variety BH 393(V1) produced superior grain and biological yield in comparison to other varieties. Using correlation analysis, the correlations between growth, weather and agrometeorological indices, and yield and yield attributes were investigated at various crop growth stages. Plant growth parameters; the association between plant height or LAI and GDD, HTU, or PTU is significantly stronger than that between TUE and RUE. Total dry matter exhibits a stronger correlation with all agrometeorological indices after the Booting stage; significant negative association with GDD, HTU, and PTU, or significant positive association with RUE and TUE. Correlation between agrometeorological indices or weather parameters reveals that GDD, HTU, or PTU were significant positive association with Tmax or Tmin, and RUE or TUE were significant negative association with Tmax or Tmin. Among yield and yield attributes awn length and straw yield shows the significant association with weather parameters.