Philippine Journal of Science
149 (S1): 101-105, Special Issue on Nuclear S&T
ISSN 0031 – 7683
Date Received: 18 Jun 2019

 

Radiation-modified Kappa-carrageenan Improves
Productivity of Peanut (Arachis hypogaea L.)
in Bukidnon, Northern Mindanao, Philippines

 

Jerald B. Bongalos¹, Lorena V. Duna², Jemseal R. Tigbao², and Fernando B. Aurigue¹*

 

¹Department of Science and Technology–Philippine Nuclear Research Institute
(DOST-PNRI), Quezon City, Metro Manila 1101 Philippines
²Department of Agriculture–Northern Mindanao Agricultural Crops and
Livestock Research Complex (DA-NMACLRC), Malaybalay City, Bukidnon 8700 Philippines

 

*Corresponding author: fbaurigue@pnri.dost.gov.ph

 

[Download]
Bongalos J et al. 2020. Radiation-modified Kappa-carrageenan
Improves Productivity of Peanut (Arachis hypogaea L.) in Bukidnon,
Northern Mindanao, Philippines. Philipp J Sci 149(S1): 101–105. https://doi.org/10.56899/149.S1.12

 

 

ABSTRACT

The use of radiation-modified kappa-carrageenan (RMKC) solution as a foliar spray to supplement the Farmer’s Practice in Bukidnon, Northern Mindanao, Philippines was tested in peanut with or without the inoculant Nitroplus® for two seasons. During the wet season (Sep–Dec 2017), the combination of RMKC and inoculant gave the highest yield advantage of 33.5% and 99.7% over the Farmer’s Practice for Ilocos Pink (3,113.33 kg/ha) and Namnama 2 (2,176.70 kg/ha), respectively. For the dry season (Jan–Apr 2018), a similar trend was observed. The combination of RMKC and inoculant resulted in a yield increase of 41.9% and 55.6% for Ilocos Pink (1,790 kg/ha) and Namnama 2 (1,690 kg/ha), respectively. The increase in weight of pods per plot and 100-seed weight, which contributed to higher yield could be attributed to the plant growth-promoting effect of RMKC that has been analyzed to contain significant amounts of micro-nutrients and gibberellic acid (GA3). Thus, Carrageenan PGP as RMKC should be supplemented to the Farmer’s Practice in Northern Mindanao, Philippines as foliar spray at 100 ppm 7–10 d after seedling emergence and every 7–10 d after the previous application for a total of four applications during the entire growing season to increase yield.