Standardization of Halo-priming and Nutri-priming for enhancing seed quality parameters in wheat (Triticum aestivum L.)

Abstract

An experiment was conducted under the Seed Testing Laboratory of the Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) during Rabi season 2017-18 and 2018-19. Dry seed moisture 13% of wheat Kharchiya-65 and KRL-210 were primed with KNO3 (1000 mg/l), CAN (2%), NaCl (50 ml), CaCl2 (50 ml), K2So4 (200 mM), Na2Sio3 (40 mM), C7H6O3 (25 mM), C7H6O3 (50 mM) for 8, 16, and 24 hrs. Dehydrated seed (moisture 13%) of each treatment were viz. germination, root length, shoot length, seedling length, seedling dry weight, speed of germination, and seedling vigour index, were placed in BOD incubator at 22 ± °C and conducted in Factorial Completely Randomized Design (FCRD) with three replications. The maximum, root length (17.87 cm), shoot length (18.92cm), seedling length (35.29cm), seedling dry weight (0.18 mg), speed of germination (16.58) were obtained during 8 hrs and germination (88.83%) during 16 hrs primed with KNO3(1000 mg/l)in Kharchiya-65 whereas the maximum seedling length (35.29cm), speed of germination (17.08) was obtained during 8 hrs and germination (90.50%), seedling vigour index (3045), shoot length (22.23 cm) primed with KNO3(1000 mg/l)for in KRL-210. Besides the maximum result in root length (18.79 cm) with 8 hrs and seedling dry weight (0.24 g) with 16 hrs of priming with K2So4 (200 mM), was recorded in KRL-210. The influences of halo-priming as well as Nutri-priming treatments were recorded as per standard ISTA rule. The halo-priming KNO3 (1000 mg/l) and nutria-priming K2So4 (200 mM), were successfully be exploited seed enhancement even in most suitable wheat varieties even developed for the alkaline-saline condition.