The Study of Growth and Its Polyembryonic Properties of Porang Seeds (Amorphophallus muelleri Blume) from Various Fruit Colors in Different Planting Media

Abstract

The ripening of Porang compound fruit (Amorphophallus muelleri Blume) in one cob does not occur simultaneously but moves forward from the distal region to proximal. The ripe fruit is red, almost ripe is yellow and unripe is green. The study aimed to examine the growth potential and polyembryonic properties of Porang seeds derived from red, yellow and green fruits. These seeds were grown in different media with the expectation the best plant growth can be obtained. This research was a factorial experiment which was arranged in a completely random design and each unit observation has three replication. The factor I was the source of seeds. Seeds came from various fruit colors. Each of them is red (R), yellow (Y) and green (G). Factor II is a planting medium which had 4 types, M1, M2, M3, and M4. M1 is combination of soil and husk charcoal (70%: 30%), M2 = soil: cocopeat (70%: 30%), M3 = soil: husk charcoal: cocopeat (70%: 15%: 15%) and M4 = just soil (100%). The results showed that the seeds derived from red fruit and planted on medium 2 (soil: cocopeat = 70%: 25%) potentially producing the best plant. The seeds also showed 100% polyembryony at 182 days after planting. In addition, the first, second and third shoots (originating from one seed) have different in height, canopy diameters, and petiole diameter.

SELECTING SEEDING TECHNIQUES AND PLANT MEDIA TO PRODUCE GENERATION ZERO (G0) TUBERS OF PORANG (Amorphophallus muelleri Blume)

“…Previous research stated that yellow and green seeds (physiologically immature) planted on soil-containing media only produced poor vegetative growth (Wardani et al, 2019). These conditions turned out to have an impact on the formation of G0 tubers A. muelleri.…”

“…Previous study stated that seeds derived from red fruit (called red seeds) planted on media consisting of soil, husk charcoal and cocopeat showed the best results on the growth parameters which included height of petiol, crown diameter and petiol (Wardani et al, 2019). The higher the petiol and the width of the crown of a plant it will make it easier for plants to capture sunlight, where the function of the leaves is as the main organ in the process of photosynthesis.…”

“…Previous studies have reported that the growth of porang seedlings and plants is influenced by the planting medium and seed type. Seeds derived from red, yellow and green fruits (then each called red, yellow, and green seeds) in one cob turned out to have a different level of maturity while the planting media used also affects the humidity and weakness of the planting media that will have an impact on seed germination and growth of seedlings A. muelleri (Wardani et al, 2019).…”