Effect of different seed priming treatments on yield attributes of wheat (Triticum aestivum)

Abstract

The effect of different priming treatments were evaluated during 2015–16 and 2016–17 with two wheat (Triticum aestivum L.) varieties V1: GW 496 and V2: Lok 1. The seeds of both the varieties were primed with different priming treatments, viz. P1, GA3 (50 ppm); P2, IAA (100 ppm); P3, KNO3 (3%); P4, KCl (2%); P5, Tricoderma harzianum @10 g/kg and P6, Tricoderma viride @10 g/kg along with unprimed seeds as a control (P7). The variety Lok 1 (V2) showed positive response to different priming treatments and seeds of Lok 1 primed with KNO3 (3%) recorded significantly higher pooled average field emergence (96.42%), number of effective tillers (7.75), spike length (12.99 cm), seed yield per plant (13.55 g), seed yield per plot (2.45 kg) during both the years followed by GA3 (50 ppm) primed seeds which recorded at par values for almost all the seed yield attributes. The unprimed seeds of wheat variety GW 496 recoded significantly lower values for all the observed characters for both the experimental years.

Effect of seed soaking with kinetin on seed germination and seedling growth of five barley cultivars (Hordeum vulgare L.)

“…The interactions of (Alhadher x 120 ppm) and (Buraq x 60 ppm) gave the highest germination vigor values (70.00 and 62.75%, respectively) followed by the interactions of (Rihan x 60,120 ppm) and (Buraq x 120, 180 ppm), while the interactions of (Alwarkaa x 0, 60 ppm) gave the lowest germination vigor 0.00%. These findings confirmed the present of high genetic variation among evaluated cultivares, and confirmed the concept of the importance of kinetin in increasing the germanation vigor of the treated seed [20,27,40].…”

“…The interactions of the Buraq cultivar with concentrations 60 and 180 ppm of kinetin gave the highest germination percentage (full germination) 100% followed by the interaction of (Rihan x 60 ppm) with value 99.25% of germination percentage, while the interaction of (Arifat x 0 ppm) gave the lowest germination percentage, which amounted to 54.00%. These results confirmed the high genetic variation among evaluated barley cultivars as well as the effective role of kinetin, at low concentration, in increasing seed germination percentage through the role of this plant growth regulator in the induction of latent genes that contribute to the representation of nucleic acids (DNA and RNA), increase cell division, increase the activity of the α-amylase enzyme, and increase the efficiency and number of mitochondria [20,21,23,38,39,40]. Germination speed is one of the important germination parameters, which the high value means that there is a speed and a high germination percentage [41].…”