Improvement of Seed Germination and Seedling Growth of Papaya (Carica Papaya L.) Through Different Pre-Sowing Seed Treatments

Influence of priming with exogenous boron on the seed vigour of alfalfa (Medicago sativa L.)

“…These results showed that low concentrations of boron have promoted the germination capacity of alfalfa seeds, which might be due to the enhancement of the energy metabolisms during priming (Chen and Arora, 2013). Similarly, previous studies had shown that boron priming could effectually facilitate the germination of seeds (Deb et al, 2010;Iqbal et al, 2017). Expectedly, germination percentage of alfalfa seeds only primed 3 h was significantly (P<0.05) higher than the control when boron concentration was 2.4 % and 4.8 %, beyond this, germination percentage of alfalfa seeds primed for 3 and 6 h only reached the maximum level at 0.1% boron, but they showed a decline trend with the enhancement of boron concentration in those primed for 9 and 12 h. These suggested that suppression in germination of alfalfa seeds was caused by high concentration of boron for a long priming time.…”

Improvement of Papaya Seed Germination by Different Growth Regulator and Growing Media under Net House Condition

“…Treatment combination G 3 M 1 also recorded significantly highest germination percentage (84.00% and 95.00%) at 10 and 20 DAS, respectively as compared to rest of the combinations. Similar results were also obtained by Deb et al, (2010) and Kumawat et al, (2014) in papaya and Patil et al, (2012) in Rangpur lime. It might be due to GA 3 acts on the embryo and causes synthesis of hydrolysing enzymes particularly amylase and protease and this hydrolysed food is utilized for grown of embryo and thereby enhanced the germination (Paleg, 1965) and retention of more water and air by media helped in quick and early enzymatic action for synthesis of metabolites for cell multiplication and also enhanced the breakdown of the seed coat resulting in the transformation of embryo into a seedling early enough (Hasan et al, 2010) which is helpful for increasing germination of seeds ( Table 2).…”

“…This treatment also recorded significantly highest germination percentage (77% and 87% at 10 and 20 DAS, respectively). Similar trends were also obtained by Deb et al, (2010). It might be due to GA 3 helped in physically breaching, thereby removing physiological barriers associated with the impermeable seed coats that cause seed dormancy (Mayer and mayber 1963) (Table 1).…”

Micronutrient application through seed treatments: a review

“…Stand establishment improved substantially from seed priming in 0.001 and 0.01% solutions; beyond this, emergence was suppressed (Farooq et al, 2011a). However in papaya, substantial improvement in germination and early seedling growth was observed when seeds were primed in 2 mg L -1 B solution for 6 h (Deb et al, 2010).…”