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Morphological characterization of four peanut (Arachis hypogaea L.) varieties under Lal-lo, Cagayan condition: Its phenotypic changes to type II climate of the Philippines

Angelina T. Gonzales, Marissa Isnec

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Int. J. Biosci.14(6), 397-404, June 2019

DOI: http://dx.doi.org/10.12692/ijb/14.6.397-404


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The study was conducted to characterize the four peanut varieties during wet season with type II climatic condition in terms of its morphological characteristics. The treatments used were: T1 – Luna Seeded, T2 – BPIPn9, T3 – NSICPn11, T4 – NSICPn17. These were randomly allocated in the different plots following the Randomized Complete Block Design (RCBD). The results of the study are: (1) erect growth habit, stem pigmentation, glabrous type of hairiness, alternate types of branching pattern, opposite leaf arrangement, yellow-orange flower color in all varieties were noticed; (2) leaflet shape: luna Seeded and NSIC11 exhibited elliptic while BPI Pn9 and NSIC17 exhibited lanceolate; (3) leaf color: luna Seeded and NSIC17 exhibited a dark-green while BPI Pn 9 and NSIC 11 exhibited light-green (3) pod Beak.: Luna Seeded and BPI Pn 9 exhibited prominent types, however, NSIC 11 and NSIC 17 has slight type; (3) pod constriction: Luna Seeded, BPI Pn 9 and NSIC 17 exhibited prominent types, while NSIC 11 has a moderate type (4) pod reticulation: Luna Seeded, BPI Pn 9 and NSIC 11 gave prominent types, however, NSIC 17 has a slight type; and (5) primary seed color: pink were predominantly noticed in Luna Seeded, BPI Pn9 and NSIC17, while NSIC11 has a tan seed color. The four peanut varieties are suitable under type II climatic condition. However, it is important that genetic purity and viability of the germplasm is maintained as a separate activity of agricultural R & D agencies.


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