Overview
D152 Katak is a large durian variety from Kedah whose name means "Frog" in Malay. The origin of this name is not definitively documented, but it is most plausibly linked to the fruit's appearance -- its round, bulbous exterior has been compared to the squat, swollen shape of a frog. In Malaysian agricultural naming, animal references for durian varieties are not uncommon (D170 Kepala Babi means "Pig Head," for instance), and they typically describe the fruit's visual impression rather than any flavor association.
Registered in 1986 by the Jabatan Pertanian (Department of Agriculture), D152 originates from Jitra in northern Kedah. It is a genuinely large durian, averaging 3.5 kg with a range of 3 to 4 kg, with an elongated elliptic shape. The DOA description is notably detailed for a Tier 2 variety: it records large arils measuring up to 7 cm in length, thick and smooth yellow flesh, a large stem averaging 7 cm, and vestigial seeds (biji kesep).
The vestigial-seed characteristic is particularly significant. Like its fellow Kedah variety D183 Kop Besar, which was registered five years later, D152 Katak produces seeds that are small and undeveloped -- meaning each aril consists almost entirely of edible flesh. Combined with the large aril size, this makes Katak a variety where the ratio of edible flesh to total fruit weight is unusually favorable.
Origin & History
D152 was registered on 14 July 1986, making it one of the earlier entries in the Malaysian national durian registry. It was reported by the Jabatan Pertanian (Department of Agriculture) rather than an individual grower, indicating that agricultural officers identified the variety during fieldwork in the Jitra area. Jitra is the administrative capital of the Kubang Pasu district in northern Kedah, situated roughly 50 km from the Thai border -- an area with a long and deeply established durian cultivation tradition.
The DOA's registration of D152 is part of a broader pattern in which government officers actively surveyed and documented regional durian diversity during the 1980s. Kedah, which was Malaysia's largest durian-producing state in the 1970s before being overtaken by Pahang, harbored considerable varietal diversity that was at risk of being lost as commercial pressures began favoring a smaller number of high-profile clones. The registration of varieties like D152 Katak served to formally document this diversity, even if few of these varieties would go on to achieve commercial prominence.
The Jitra origin places D152 in the same northern Kedah durian-growing zone as D183 Kop Besar, which comes from the broader Kedah region and was registered in 1991. Both varieties share vestigial seeds and are products of the same general area -- a corridor of durian cultivation running through northern Kedah where Thai and Malay agricultural influences intersect. Whether the two varieties are genetically related is not documented, but their geographic proximity and shared trait of vestigial seeds is noteworthy.
The name "Katak" (frog) has been attributed by some sources to the round, somewhat lumpy exterior of the fruit. The DOA description itself does not explain the name, recording only the physical characteristics. The elongated elliptic shape described officially does not immediately evoke a frog, which may suggest that the name predates the formal registration and was applied to the tree or its fruit by local growers based on characteristics not fully captured in the DOA entry -- perhaps the appearance of the unopened fruit from a particular angle, or the shape of the individual arils.
Characteristics
Size and weight. The DOA classifies D152 as large (besar), with an average weight of 3.5 kg and a range of 3 to 4 kg. This places it among the heavier durian varieties in the registry, though it is somewhat smaller than its Kedah counterpart D183 Kop Besar, which averages 4 kg and can reach 5 kg.
Shape. The fruit is described as elongated elliptic (eliptik panjang), distinguishing it from the more common round or ovoid shapes. This elongated form may contribute to the visual impression that inspired the "Katak" name, particularly if the fruit narrows toward one end.
Stem. The DOA records a large stem (tangkai besar) with an average length of 7 cm. A robust stem is a practical consideration for orchard management, as it affects how the fruit hangs and how it detaches when ripe. A thick, long stem may also indicate a strong connection between the fruit and the branch, potentially affecting drop patterns during natural ripening.
Arils and flesh. The arils are described as large (besar) with an average length of 7 cm. The flesh within is thick (tebal), smooth in texture (halus), and yellow in color. Seven-centimeter arils are substantial -- this is a durian with genuinely large segments of edible flesh. Combined with the vestigial seeds, each aril is predominantly flesh with only a tiny, undeveloped seed at its center.
Seeds. D152 has vestigial seeds (biji kesep). This is the same trait found in D183 Kop Besar, and it means that the seeds have not developed to their full potential size. Practically, this translates to more flesh per aril and a better yield of edible fruit relative to total weight. The presence of vestigial seeds in both D152 and D183, both from Kedah, raises the question of whether certain Kedah durian populations carry a genetic predisposition toward reduced seed development.
Taste and aroma. The DOA description does not specify taste or aroma characteristics for D152, which is a notable omission given the detail provided for other physical attributes. Some independent sources describe the flesh as sweet, which is consistent with the yellow color and smooth texture, but no official tasting profile exists.
Availability
D152 Katak is a regional Kedah variety with very limited availability outside its area of origin. It is not among the DOA-recommended varieties for commercial planting, and it does not feature in the national durian trade that centers on Musang King, Black Thorn, and other widely cultivated clones.
The Jitra area in the Kubang Pasu district of northern Kedah is the most likely place to find D152 Katak. This region maintains a traditional durian culture that includes numerous locally significant varieties not widely known outside the state. During Kedah's durian season, small-scale growers and roadside sellers in the Jitra, Changlun, and Kodiang areas may offer Katak alongside other regional varieties.
D152's large arils, vestigial seeds, and smooth yellow flesh make it an appealing variety for those who can locate it. Together with D183 Kop Besar, it represents a distinctive element of Kedah's durian heritage -- varieties bred or selected in the northern borderland zone that prioritize flesh volume and minimal seed development. For durian enthusiasts planning a trip to northern Kedah, seeking out both D152 Katak and D183 Kop Besar offers an opportunity to taste two vestigial-seed varieties from the same region, each with its own distinctive shape and character.