INTERACTIVE EFFECT OF PH AND TEMPERATURE ON GROWTH AND BIOCHEMICAL PARAMETERS IN T. aestivum and T.

Extreme temperature and pH have a negative impact on wheat productivity. In addition, the interaction of temperature and pH has a significant impact on plant growth and development. Seven days old wheat varieties of Triticum aestivum (HI1418, HI1500, HI1531, HI1544, HI1563, HD2932) and Triticum durum (HD4672, HI8381, HI8498, HI8627, HI8663, HI8737) were assessed for nine various pH (4.0, 5.0, 6.0) and temperature (10°, 20°, 30°C) combinations in this study. In a static hydroponic setting, seedlings were supplied with one-fourth strength hoag land nutrient solution. The effect of temperature on fresh tissue weight, length, and chlorophyll concentration was more pronounced. At 20°C and 30°C, the weight, length, and chlorophyll content of new shoot tissue increased for all T. aestivum and T. durum types. Both species' root weight and length were only slightly altered. The effect of pH on NR activity, protein, and proline content could be seen. At pH 6, NR activity declined as temperature increased, whereas at pH 4 and 5, activity increased up to 20°C in T. aestivum and T. durum types. Except for HI1544, protein content in T. aestivum shoot tissue was high at pH 4 temperature 10°C, but in root tissue it was pH 5 temperature 20°C. T. durum, on the other hand, had a high protein concentration at pH 6 and a temperature of 20°C. At 10°C, both species had high proline content, which declined as temperature increased, with the exception of HI1544, HI1563, and HD2932 at pH4. T. durum had high protein and low proline content when compared to T. aestivum. Furthermore, HD 4672, HI 8498, and HI 8737 cultivars had low proline and high protein content at pH 5, suggesting that they might be grown on non-arable land.

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