Benyamin Lakitan | Universitas Sriwijaya (original) (raw)
Papers by Benyamin Lakitan
Annual Report of the Bean Improvement Cooperative. Bean Improvement Cooperative, 1989
Annual Report of the Bean Improvement Cooperative. Bean Improvement Cooperative, 1989
Springer eBooks, Aug 11, 2008
Agriculture, Ecosystems & Environment, Sep 1, 1993
Biovalentia: biological research journal, May 10, 2023
Journal of Tropical Life Science, Oct 14, 2022
Ridge gourd (Luffa acutangula) is a climbing vegetable that produces edible fruits. Young fruits ... more Ridge gourd (Luffa acutangula) is a climbing vegetable that produces edible fruits. Young fruits are harvested at a time when the seed coats have been established, but cotyledons have not yet formed. This study covered morphological characteristics, growth behavior, and cultivation practices suitable for increasing the production of the ridge gourd in urban ecosystems. Results of observation revealed the heart-shaped leaf of the ridge gourd was very uniform, and the leaf surface was flat so that their leaf area could be accurately estimated using leaf length and/or width (R2 > 0.97). Yet, leaf thickness was not a reliable predictor for the leaf area (R2 < 0.34). The length of petioles was not correlated with the leaf blade area. All single leaves, multiple tendrils, an inflorescence of male flowers and/or a single female flower, and a branch could be formed at each stem node. Water content in the leaf blade was lower than in the petiole. This phenomenon is related to water favor loss due to transpiration activity. Nevertheless, the total conserved water within the leaf blade was 6.26 times more than those within the petiole. The process of fruit enlargement followed the Sigmoid curve. The upper end of the curve started to flatten 10 days after the female flower bloomed. Moreover, at the age of 10 days, cotyledon has not yet formed, so it can be used as a guide to determine the harvest time of the gourd ridge fruit. Based on the leaf SPAD value, by the time the fruit began to enlarge, 4-5 leaves at the stem base were instigated to show symptoms of senescence. Ridge gourd fruit fresh weight can be best estimated using the length × diameter of the plants as a predictor. Keywords: Climbing vegetable, Fruit age, Leaf shape, Sigmoid curve, Urban olericulture
AGRIVITA Journal of Agricultural Science
Chaya (Cnidoscolus aconitifolius (Mill.) I.M. Johnst.) is a perennial leafy vegetable. Since the ... more Chaya (Cnidoscolus aconitifolius (Mill.) I.M. Johnst.) is a perennial leafy vegetable. Since the leaf blade is the most crucial component of the Chaya, it should be advantageous to estimate the leaf area non-destructively. This research aimed to (a) develop a beneficial non-destructive model for leaf area estimation, and (b) ascertain the impact of stem cutting diameter when used as planting material on chaya growth rate. The results demonstrated that utilizing the length x width (LW) of the middle lobe as the predictor and the zero intercepts linear regression LA = 1.679 LW with R2=0.947 determination coefficient was the most dependable model for Chaya plant leaf area estimation. The stem diameter, which ranged from 9.9 to 17.3 mm, had affected the shoot length, number of leaves, and canopy area between 5 and 7 weeks after planting (WAP). The variations in growth metrics diminished along with the age of plants. The diameter of the stem cutting used as planting material had no effec...
Biodiversitas Journal of Biological Diversity
Annual Report of the Bean Improvement Cooperative. Bean Improvement Cooperative, 1989
Annual Report of the Bean Improvement Cooperative. Bean Improvement Cooperative, 1989
Springer eBooks, Aug 11, 2008
Agriculture, Ecosystems & Environment, Sep 1, 1993
Biovalentia: biological research journal, May 10, 2023
Journal of Tropical Life Science, Oct 14, 2022
Ridge gourd (Luffa acutangula) is a climbing vegetable that produces edible fruits. Young fruits ... more Ridge gourd (Luffa acutangula) is a climbing vegetable that produces edible fruits. Young fruits are harvested at a time when the seed coats have been established, but cotyledons have not yet formed. This study covered morphological characteristics, growth behavior, and cultivation practices suitable for increasing the production of the ridge gourd in urban ecosystems. Results of observation revealed the heart-shaped leaf of the ridge gourd was very uniform, and the leaf surface was flat so that their leaf area could be accurately estimated using leaf length and/or width (R2 > 0.97). Yet, leaf thickness was not a reliable predictor for the leaf area (R2 < 0.34). The length of petioles was not correlated with the leaf blade area. All single leaves, multiple tendrils, an inflorescence of male flowers and/or a single female flower, and a branch could be formed at each stem node. Water content in the leaf blade was lower than in the petiole. This phenomenon is related to water favor loss due to transpiration activity. Nevertheless, the total conserved water within the leaf blade was 6.26 times more than those within the petiole. The process of fruit enlargement followed the Sigmoid curve. The upper end of the curve started to flatten 10 days after the female flower bloomed. Moreover, at the age of 10 days, cotyledon has not yet formed, so it can be used as a guide to determine the harvest time of the gourd ridge fruit. Based on the leaf SPAD value, by the time the fruit began to enlarge, 4-5 leaves at the stem base were instigated to show symptoms of senescence. Ridge gourd fruit fresh weight can be best estimated using the length × diameter of the plants as a predictor. Keywords: Climbing vegetable, Fruit age, Leaf shape, Sigmoid curve, Urban olericulture
AGRIVITA Journal of Agricultural Science
Chaya (Cnidoscolus aconitifolius (Mill.) I.M. Johnst.) is a perennial leafy vegetable. Since the ... more Chaya (Cnidoscolus aconitifolius (Mill.) I.M. Johnst.) is a perennial leafy vegetable. Since the leaf blade is the most crucial component of the Chaya, it should be advantageous to estimate the leaf area non-destructively. This research aimed to (a) develop a beneficial non-destructive model for leaf area estimation, and (b) ascertain the impact of stem cutting diameter when used as planting material on chaya growth rate. The results demonstrated that utilizing the length x width (LW) of the middle lobe as the predictor and the zero intercepts linear regression LA = 1.679 LW with R2=0.947 determination coefficient was the most dependable model for Chaya plant leaf area estimation. The stem diameter, which ranged from 9.9 to 17.3 mm, had affected the shoot length, number of leaves, and canopy area between 5 and 7 weeks after planting (WAP). The variations in growth metrics diminished along with the age of plants. The diameter of the stem cutting used as planting material had no effec...
Biodiversitas Journal of Biological Diversity
IPK tinggi itu penting. Saya percaya itu. Tapi ada beberapa catatan. Pertama, IPK itu harus di... more IPK tinggi itu penting. Saya percaya itu. Tapi ada beberapa catatan. Pertama, IPK itu harus diperoleh dengan menjunjung tinggi kejujuran akademik, tidak boleh nyontek dan plagiat; sehingga IPK tersebut memang merupakan indikator kemampuan intelektual dari yang bersangkutan. Kedua, IPK tinggi tidak dapat menjamin kesuksesan karir seseorang dalam jangka panjang. Oleh sebab itu masih perlu dilengkapi dengan kemampuan komunikasi dan interaksi sosial (atau bahasa kerennya ‘kecerdasan emosional’). Kemampuan ini bisa diasah selama kuliah melalui kegiatan ekstra kurikuler dan lebih perlu ditajamkan lagi pada saat sudah bekerja. Ketiga, sebetulnya yang lebih penting adalah seberapa banyak ilmu pengetahuan yang berhasil diserap selama kuliah, seberapa luas dan intensif jaringan yang mampu dibangun selama kuliah, dan citra positif yang terekam dalam benak orang-orang di sekitar kita.