Cluster analysis revealed that scion grafted on Kurukkan rootstock clustered together except ‘Pusa Arunima’ on Olour rootstock. Maximum and minimum PIC value was found for NMSPS10, and NMTPS9 primers (0.58). A total of 33 alleles were amplified among carbohydrate metabolism-specific markers, which varied from 2 to 3 alleles with a mean of 2.53 per locus. Further, a total of 30 carbohydrate metabolism-specific primers were designed and validated in 15 scion/rootstock combinations.
Stomatal density in ‘Dashehari’ scion variety was found higher on Olour rootstock (700.40/mm 2), while the rootstock fails to modify stomatal density in the scion variety regular bearer ‘Amrapali’. While Olour rootstock upregulated the reducing sugar in leaves of ‘Amrapali’ (43.56 mg/g) and promoted K (1.34%) and B (78.58 ppm) content in reproductive buds of ‘Dashehari’. The rootstock “Kurukkan” promoted starch content in leaves of both alternate bearing varieties ‘Dashehari’ (5.62 mg/g) and regular ‘Amrapali’ (5.49 mg/g) and encouraged higher protein content (6.71 mg/g) and C/N ratio (37.94) in buds of alternate bearing ‘Dashehari’. The present investigation was carried out to understand the effect of rootstocks on the physiochemical traits of leaf, and bud and nutrient content in regular and alternate bearing varieties of mango.
In addition to that rootstock can alter the carbohydrate reserve and nutrient acquisition of scion varieties in fruit crops. There are many external and internal factors assigned, among them carbohydrate reserves, and nutrient content plays important roles in the floral induction process in many crop species. Most of the popular scion varieties of mango possess alternate/irregular bearing.
0 kommentar(er)
