ABSTRAK<br />Amrasca biguttula (Ishida) adalah serangga hama pengisap daun<br />yang sangat potensial menurunkan produktivitas kapas. Pengendaliannya<br />secara kimiawi menimbulkan banyak masalah lingkungan, seperti<br />pencemaran dan peningkatan resistensi hama terhadap insektisida kimia<br />sintetis. Salah satu solusi dalam masalah tersebut adalah penggunaan<br />varietas tahan (resisten) yang juga merupakan bagian dari pengendalian<br />hama terpadu (PHT) pada kapas. Penelitian ketahanan beberapa aksesi<br />kapas terhadap A. biguttula (Ishida) dilakukan di Kebun Percobaan Balai<br />Penelitian Tanaman Tembakau dan Serat di Asembagus, Situbondo, mulai<br />Januari hingga Desember 2006. Tujuannya adalah untuk mengetahui<br />ketahanan beberapa aksesi kapas terhadap serangan hama pengisap daun,<br />A. biguttula. Sebagai perlakuan adalah 30 aksesi kapas yang ditanam<br />dalam plot berukuran 10 m x 3 m, dengan jarak tanam 100 cm x 25 cm,<br />satu tanaman per lobang. Setiap aksesi disusun dalam rancangan acak<br />kelompok dengan tiga kali ulangan. Parameter yang diamati adalah jumlah<br />nimfa A. biguttula per daun, jumlah bulu daun per cm 2 luas daun, dan<br />posisi bulu terhadap lamina (tegak/rebah), serta skor kerusakan tanaman.<br />Hasil penelitian menunjukkan bahwa setiap aksesi kapas berpotensi<br />terserang A. biguttula, meskipun tingkat populasi hama ini tidak<br />menunjukkan perbedaan nyata antar aksesi. Terjadi korelasi negatif (R 2 =<br />0,2425) antara jumlah bulu daun dan populasi nimfa A. biguttula dan<br />antara jumlah bulu daun dan skor kerusakan tanaman (R 2 = 0,2027).<br />Berdasarkan jumlah bulu daun, aksesi kapas yang termasuk kategori<br />sedikit berbulu dengan kriteria ketahanan sedikit tahan adalah: AC 134,<br />Stoneville 7, Fai Nai, SHR, CRDI-1, Kanesia 5, Kanesia 8, dan Kanesia 9.<br />Sedangkan aksesi lainnya termasuk kategori tidak berbulu dan peka<br />terhadap serangan A. biguttula.<br />Kata kunci : Kapas, Gossypium hirsutum, aksesi, hama, Amrasca<br />biguttula (Ishida), toleran, peka, kerusakan, Jawa Timur<br />ABSTRACT<br />Resistance of several cotton accessions to sucking insect<br />pest, Amrasca biguttula (Ishida)<br />Amrasca biguttula (Ishida) is a sucking insect pest which potentially<br />reduces cotton productivity. Its chemical control often cause environ-<br />mental problems mainly air pollution and increase of pest resistance to<br />certain chemical insecticides. One solution can be used to solve these<br />problems is by using resistant variety that is also an integral part of the<br />integrated pest management (IPM). Study on the resistance of several<br />cotton accessions to sucking insect pest, Amrasca biguttula (Ishida) was<br />conducted at the Experimental Station of the Indonesian Tobacco and<br />Fiber Crops Research Institute (IToFCRI) in Asembagus, Situbondo, East<br />Java, from January to December 2006. The objective of the study was to<br />find out the resistance of cotton accessions to sucking insect pest. Thirty<br />accessions of cotton were used as treatment and were planted in plots 10 m<br />x 3 m with plant spacing 100 cm x 25 cm, one plant per hole. Each<br />accession was arranged in a randomized block design with three<br />replications. Parameters observed were number of nymph of A. biguttula,<br />number of leaf hair, leaf hairs position (erect or lie down), and score of<br />damage. The result showed that every accession of cotton can be attacked<br />by A. biguttula although the insect population was not significantly<br />different among accessions. There is negative correlation (R 2 = 0.2425)<br />between number of leaf hair and population of A. biguttula and between<br />number of leaf hair and score of plant damage (R 2 = 0.2027). Accessions<br />that categorized as lightly hairy and moderately resistant to A. biguttula<br />were AC 134, Stoneville 7, Fai Nai, SHR, CRDI-1, Kanesia 5, Kanesia 8,<br />and Kanesia 9, while the others were categorized as glabrous and<br />susceptible to the sucking pest.<br />Key words: Cotton, Gossypium hirsutum, accession, insect pest, Amrasca<br />biguttula (Ishida), tolerant, sensitive, damage, East Jav
<p>ABSTRAK<br />Program perbaikan varietas kapas bertujuan meningkatkan<br />produktivitas dan mutu serat. Sembilan hasil persilangan kapas tahun 1997<br />dan 1998 yang melibatkan dua tetua dari Amerika Serikat (Deltapine<br />Acala 90 dan Deltapine 5690), tiga tetua dari India (LRA 5166, Pusa 1,<br />dan SRT 1), dan satu tetua dari Asia Tengah (Tashkent 2) telah melalui<br />tujuh pengujian di Jawa Timur, Nusa Tenggara Barat, dan Sulawesi<br />Selatan untuk menilai potensi produksi, mutu serat, dan tingkat ketahanan<br />terhadap beberapa hama di lahan tadah hujan dengan atau tanpa diproteksi<br />dengan insektisida. Perlakuan disusun dalam rancangan acak kelompok<br />(RAK) yang diulang tiga kali dalam kondisi diproteksi ataupun tanpa<br />diproteksi dengan insektisida pada petak-petak percobaan berukuran 40-50<br />m2 dengan jarak tanam (100 x 25) cm. Pengendalian hama pada ulanganulangan<br />yang diproteksi dengan insektisida adalah penambahan insektisida<br />benih Imidachloprit 10 ml/kg benih dan pengendalian hama H. armigera<br />sebanyak 5-6 kali menggunakan pestisida nabati Organeem (Azadirachtin<br />1%). Hasil pengujian menunjukkan bahwa Kanesia 10 – Kanesia 13<br />mampu berproduksi lebih tinggi apabila diproteksi dengan insektisida<br />dengan potensi produksi berturut-turut 19,32, 21,75, 17,05, dan 21,7%<br />lebih tinggi dari Kanesia 8, dan rata-rata produktivitas berturut-turut<br />adalah 2.457,2, 2.507,3, 2.410,5, dan 2.506,8 kg kapas berbiji per hektar.<br />Kanesia 10 dan Kanesia 11 memiliki kandungan serat berturut-turut 27,2%<br />dan 8,11% lebih tinggi dibandingkan Kanesia 8. Pada rekayasa Kanesia<br />10 - Kanesia 13 ini tidak diperoleh kemajuan genetik yang nyata pada<br />parameter mutu serat, akan tetapi mutu serat dari empat galur tersebut di<br />atas memenuhi kriteria industri tekstil yaitu dengan rata-rata karakteristik<br />mutu serat yaitu panjang serat 26,92 – 29,34 mm, kekuatan 27,13 – 29,50<br />g/tex, kehalusan 4,38-5,08 micronaire, dan keseragaman serat 83,3 –<br />84,6%.<br />Kata kunci : Gossypium hirsutum, kemajuan genetik, produktivitas, mutu<br />serat</p><p><br />ABSTRACT<br />Kanesia 10- Kanesia 13: Four New High Yielding Cotton Varieties<br />The cotton breeding program is focusing on the increase of<br />productivity and fiber properties. The 1997 and 1998 crossing program<br />involving two parents introduced from the United States of America<br />(Deltapine Acala 90 and Deltapine 5690), three parents introduced from<br />India (LRA 5166, Pusa 1, and SRT 1), and one variety originated from<br />Central Asia (Tashkent 2), have resulted in nine crosses which had been<br />tested in seven locations at East Java, West Nusa Tenggara, and South<br />Sulawesi to evaluate their yield potentials, fiber properties, and resistance<br />level to insect pests on rainfed areas with or without protection.<br />Experiments were arranged in randomized block design (RBD) with three<br />replications either with or without insecticide spray on 40-50 m2 plots with<br />(100 x 25) cm planting space. Insect controls were done by treating cotton<br />seed with 10 ml Imidachloprit per kg seed and 5-6 applications of<br />botanical pesticide Organeem (Azadirachtin 1%). Experimental results<br />showed that Kanesia 10-Kanesia 13 yield better when insects are<br />controlled. Their yield potentials are 19.32, 21.75, 17.05, and 21.7%<br />higher than Kanesia 8, respectively, and means of yield are 2,457.2,<br />2,507.3, 2,410.5, and 2,506.8 kg seed cotton, respectively. Kanesia 10 and<br />Kanesia 11 have 27.2 and 8.11% higher gin turnout, respectively than<br />Kanesia 8. On the engineering of Kanesia 10-Kanesia 13, there is no<br />improvement on the fiber properties, although they meet the textile<br />industries’ criteria i.e. staple length 26.92 – 29.34 mm, fiber strength 27.13<br />– 29.50 g/tex, fiber fineness 4.38-5.08 micronaire, and uniformity ratio<br />83.3 – 84.6%.<br />Key words : Gossypium hirsutum, genetic improvement, productivity,<br />fiber properties</p>
<p>ABSTRAK<br />Rekomendasi cara pengendalian hama pengisap daun, Amrasca<br />biguttula (ISHIDA) pada tanaman kapas masih mengandalkan<br />penggunaan kombinasi varietas tahan dan perlakuan benih dengan<br />insektisida kimia sistemik imidakloprid. Namun, tidak jarang petani<br />melakukan penyemprotan insektisida kimia pada kanopi tanaman yang<br />juga dapat membunuh serangga berguna, termasuk musuh alami. Tujuan<br />penelitian adalah untuk mengetahui keefektifan teknik pengendalian A.<br />biguttula pada kapas menggunakan varietas dan insektisida. Penelitian<br />dilakukan di KP Asembagus mulai Januari sampai dengan Nopember<br />2010. Perlakuan petak utama, yaitu teknik pengendalian: (1) perlakuan<br />benih dengan imidakloprid (PB), (2) tanpa perlakuan benih maupun<br />penyemprotan kanopi tanaman atau kontrol (TPB), (3) perlakuan benih +<br />penyemprotan kanopi (PBS), dan (4) penyemprotan kanopi (S). Perlakuan<br />anak petak adalah tiga galur/varietas kapas, yaitu: (1) galur 98050/9/2/4,<br />(2) KI 645, dan (3) Kanesia 10. Pola tanam yang diterapkan adalah<br />tumpangsari kapas dan kacang hijau yang ditanam di antara baris kapas.<br />Setiap perlakuan disusun dalam rancangan petak terbagi dengan tiga kali<br />ulangan. Ukuran anak petak adalah 10 m x 15 m. Pengamatan dilakukan<br />terhadap (1) populasi nimfa A. biguttula dan predatornya, (2) frekuensi<br />pencapaian populasi ambang ekonomi, (3) skor kerusakan tanaman kapas,<br />(4) hasil kapas berbiji dan kacang hijau, dan (5) analisis ekonomi<br />perlakuan. Hasil penelitian menunjukkan bahwa setiap teknik<br />pengendalian yang diuji berpengaruh terhadap perkembangan populasi A.<br />biguttula dan predatornya. Rata-rata pencapaian populasi ambang<br />ekonomi pada perlakuan benih (PB) dan kontrol lebih rendah (0,5–2 kali)<br />dibandingkan dengan kombinasi perlakuan benih dan penyemprotan<br />kanopi (PBS) serta penyemprotan kanopi saja (S) yang mencapai 3–4 kali.<br />Pada galur/varietas kapas yang diuji, pencapaian populasi ambang<br />ekonomi paling rendah terjadi pada galur 98050/9/2/4, diikuti oleh Kanesia<br />10 dan KI 645. Perlakuan benih saja (PB) selain menurunkan populasi A.<br />biguttula dan tidak menurunkan populasi predator, juga lebih efisien<br />dibanding perlakuan lainnya dengan nilai marginal rate of return 1,38 dan<br />peningkatan bersih 14,3%. Makna dari hasil yang diperoleh adalah<br />pengendalian A. biguttula pada kapas dengan cara menyemprot kanopi<br />lebih baik dihindari apabila benih masih dapat diperlakukan, sedapat<br />mungkin dikombinasikan dengan penggunaan varietas tahan/toleran.<br />Kata kunci : Amrasca biguttula, imidakloprid, ambang ekonomi, galur/<br />varietas, kapas, predator, marginal rate of return (MRR)</p><p>ABSTRACT<br />Effectiveness and Efficiency of Different Control<br />Techniques of Cotton Jassid, Amrasca biguttula<br />Recommendation for controlling jassid (A. biguttula) of cotton still relies<br />on the use of combination of resistant variety and seed treatment<br />(imidachloprid). Farmers, however, often spray chemical insecticides over<br />plant canopy that also kill beneficial insects, including natural enemies.<br />This study was conducted at Asembagus Experimental Station from<br />January to November 2010. The objective of the study was to find out the<br />effectiveness and efficiency of control techniques against cotton jassid, A.<br />biguttula. This field study consisted of two factors. First factor consisted<br />of three different control techniques i.e. (1) seed treatment (PB), (2)<br />without seed treatment and foliar application or control (TPB), (3)<br />combination between seed treatment and foliar application (PBS), and (4)<br />foliar application alone (S). Second factor consisted of three cotton<br />varieties, e.g. 98050/9/2/4, KI 645, and Kanesia 10. Treatments were<br />arranged in a split plot design with three replicates. Cotton intercropped<br />with mung bean planted in between cotton rows. Population of A. biguttula<br />and its predator, economic threshold achievement, score of plant injury,<br />yields of cotton and mung bean were observed. Economic analysis of the<br />treatments was evaluated at the end of the experiment. Results showed that<br />each control techniques caused different effect on jassid and its predator<br />development. The average of economic threshold achievement in seed<br />treatment application (PB) and control (TPB) were lower (0.5-2.0 times)<br />compared to combination between seed treatment and foliar sprayed<br />(PBS), also only foliar sprayed (3-4 times). Averaged of economic<br />threshold achievement on 98050/9/2/4 line was the lowest, followed by<br />Kanesia 10 and KI 645. Application of seed treatment (PB) not only<br />reduced jassid population but also less effective on predator population. It<br />was more efficient than other treatments with marginal rate 1.38 and did<br />increase net income by 14.3%. It means that foliar sprays to control A.<br />biguttula on cotton should be ignored, if applying seed treatment and<br />resistant/tolerant varieties.<br />Key words: Amrasca biguttula, imidachloprid, economic threshold,<br />cotton cultivar/variety, predator, marginal rate of return<br />(MRR)</p>
<p>ABSTRAK<br />Hingga kini teknik perakitan varietas kapas tahan hama masih<br />dilakukan secara konvensional berdasarkan beberapa karakter morfologi<br />tanaman, seperti: bulu daun, daun okra, braktea berpilin, nektar, dan<br />gosipol tinggi. Karakter-karakter ini diketahui erat hubungannya dengan<br />ketahanan terhadap hama, khususnya H. armigera. Berkaitan dengan<br />serangan H. armigera pada buah, diduga ada bagian-bagian buah kapas<br />yang berkontribusi secara langsung pada serangan hama ini, misalnya<br />braktea buah. Namun demikian, besarnya pengaruh braktea terhadap<br />kerusakan buah kapas perlu dipelajari dalam upaya meminimalkan<br />kerusakan. Penelitian ini bertujuan untuk mengetahui pengaruh ukuran<br />braktea terhadap tingkat kerusakan buah oleh H. armigera pada beberapa<br />aksesi kapas. Penelitian dilaksanakan di Kebun Percobaan Balai Penelitian<br />Tanaman Tembakau dan Serat, di Asembagus, Situbondo, Jawa Timur<br />mulai bulan Januari hingga Desember 2006. Sebanyak 18 aksesi dari 50<br />aksesi kapas dengan berbagai variasi ukuran braktea digunakan sebagai<br />perlakuan. Setiap perlakuan (aksesi) disusun dalam rancangan acak<br />kelompok (RAK), dengan tiga kali ulangan. Lima tanaman kapas dari<br />masing-masing aksesi ditentukan secara acak, dan sebanyak 5 buah kapas<br />muda (diameter ± 4 cm) dipetik dari masing-masing tanaman sampel,<br />kemudian dibawa ke laboratorium untuk diukur luas braktea dan buahnya.<br />Selain itu dilakukan pula pengamatan kerusakan buah dan hasil kapas<br />berbiji di lapang. Hasil penelitian menunjukkan bahwa ukuran braktea<br />berkorelasi positif dengan tingkat kerusakan buah (R 2 = 0,9014), sehingga<br />braktea berukuran besar dan lebar serta menutupi buah secara total<br />berpotensi mengalami kerusakan akibat serangan H. armigera lebih tinggi<br />dibanding braktea berukuran kecil dan sempit. Ukuran panjang dan lebar<br />braktea pada 18 aksesi kapas bervariasi antar aksesi dan masing-masing<br />berkorelasi positif dengan luas (R 2 = 0,876; R 2 = 0,894). Hasil penelitian<br />ini dapat dimanfaatkan dalam merakit varietas tahan hama, dan<br />kombinasinya dengan karakter-karakter morfologi kapas yang sudah ada<br />untuk menghasilkan varietas kapas baru dengan tingkat ketahanan yang<br />lebih tinggi terhadap hama penggerek buah H. armigera.<br />Katakunci : Braktea, Helicoverpa armigera, aksesi kapas, karakter<br />morfologi.</p><p><br />ABSTRACT<br />Effects of bract size of several cotton accessions to<br />American bollworm injury level<br />Conventional method by crossing technique based on<br />morphological characters of plant is now still used in providing resistant<br />varieties of cotton against insect bollworms. A number of genetic<br />characters are now available and have been studying for their assosiation<br />with insect pests resistance such as hairiness, okra leaf, frego bract,<br />nectariless, and high gossypol. Regarding to boll damage by H. armigera,<br />it can be mentioned that there are many other morphological characters of<br />cotton attributable to bollworm damage, such as floral bract. As a part of<br />boll, it is estimated that bracts assosiated with bollworm attacked due to<br />their larger size compared with boll size. Objective of the study was to find<br />out the effect of bract size in relation to bollworm damage on cotton<br />accessions. The study was conducted at Experimental Station of<br />Indonesian Tobacco and Fiber Crops Research Institute in Asembagus,<br />Situbondo, East Java from January to December 2006. Eighteen of fifty<br />cotton accessions were used as treatment and they were arranged in<br />Randomized Block Design (RBD) with three replications. Five randomly<br />cotton plants from each accession and five young bolls were sampled<br />from the selected plant with about 4 cm of diameter were brought in the<br />laboratory to collect information on bract and boll sizes. Bollworm<br />damage was determined by counting the damaged bolls in the field as well<br />as the seed cotton yield. Result showed that bract size was positively<br />correlated with boll damage (R 2 = 0.9014). Higher damaged bolls occured<br />on bolls which is covered completely by bracts. There is variation between<br />length and wide size of bracts among cotton accessions and both showed<br />positive correlation to bract area (R 2 = 0.876; R 2 = 0.894). Based on this<br />study, higher resistance of cotton variety against H. armigera will<br />possiblly be provided through combination between bract size and any<br />other morphological characters of cotton.<br />Key words : Floral bract, Helicoverpa armigera, cotton accession,<br />morphological character</p>
ABSTRAK<br />Areal pertanaman kapas di Indonesia tersebar di enam propinsi yaitu<br />Jawa Tengah, Jawa Timur, Bali, Nusa Tenggara Barat, Nusa Tenggara<br />Timur, dan Sulawesi Selatan. Pengembangan kapas 70% berada di lahan<br />tadah hujan dan 30% di lahan sawah sesudah tanaman padi. Di lahan tadah<br />hujan biasanya kapas ditanam setelah jagung, kedelai atau kacang hijau<br />dan selalu mengalami kendala kekurangan air selama pertumbuhannya.<br />Karena kendala tersebut, produksi kapas berbiji ditingkat petani umumnya<br />hanya mencapai 200 – 500 kg per hektar. Penelitian uji multilokasi<br />dilaksanakan di Asembagus dan Wongsorejo (Jawa Timur), Bayan (Nusa<br />Tenggara Barat), dan Bantaeng serta Bulukumba (Sulawesi Selatan), di<br />lahan tadah hujan pada tahun 2004 – 2006. Sebanyak 9 galur dan varietas<br />Kanesia 8 disusun dalam rancangan acak kelompok yang diulang 4 kali<br />(tiga ulangan tidak mendapatkan tambahan pengairan setelah tanaman<br />berumur 42 hari atau setelah pemupukan kedua), satu ulangan diberi<br />pengairan optimal sampai panen, yang digunakan untuk menghitung<br />Indeks Kepekaan Terhadap Kekeringan. Kapas ditanam secara monokultur<br />pada petak percobaan berukuran 50m 2 dengan jarak tanam 100 cm x 25<br />cm, satu tanaman per lubang. Pengamatan yang dilakukan adalah : hasil<br />kapas berbiji pada kondisi keterbatasan air, hasil kapas berbiji pada<br />kondisi pengairan optimal, indeks kerentanan terhadap kekeringan, skor<br />kerusakan daun akibat serangan Amrasca biguttula, dan mutu serat. Pada<br />kondisi tidak mendapatkan tambahan pengairan, rata-rata potensi hasil<br />galur-galur yang diuji tidak berbeda nyata dengan varietas Kanesia 8 serta<br />toleran terhadap A biguttula dan mutu seratnya memenuhi syarat untuk<br />industri tekstil di Indonesia. Galur-galur yang produktivitasnya mencapai<br />lebih dari 1.500 kg kapas berbiji/ha adalah (135x182)(351x268)9,<br />(135x182)(351x268)10, dan (135x182)10. Dilihat dari produktivitas, keta-<br />hanan terhadap A. biguttula, ketahanan terhadap kekeringan dan mutu<br />serat, terdapat dua galur harapan yang dapat dilepas sebagai varietas baru<br />yang sesuai untuk dikembangkan di lahan tadah hujan pada kondisi keter-<br />batasan air yaitu galur {(135x182)(351x268)}9 dan galur (339x448)2.<br />Keunggulan galur {(135x182)(351x268)}9 adalah lebih toleran terhadap<br />kondisi dengan ketersediaan air terbatas dibandingkan dengan Kanesia 8,<br />sedangkan produktivitas, ketahanannya terhadap A biguttula, serta mutu<br />seratnya tidak berbeda. Keunggulan galur (339x448)2 dibandingkan<br />dengan Kanesia 8 adalah mutu seratnya lebih tinggi, sedangkan produk-<br />tivitas serta ketahanannya terhadap keterbatasan air dan A. biguttula tidak<br />berbeda.<br />Kata kunci : Kapas, produktivitas, mutu serat, tahan terhadap kekeringan<br />ABSTRACT<br />New cotton lines adaptive to rain-fed<br />Cotton growing area in Indonesia extended in six provinces i.e.<br />East Java, Middle Java, Bali, West Nusa Tenggara, East Nusa Tenggara<br />and South Sulawesi. Cotton area in Indonesia is mostly (70%) in rain-<br />fed, and the rest is on rice-field after paddy (30%). On rain-fed areas,<br />cotton is commonly grown after maize, soybean, or greenbean, that it<br />suffers from drought. This condition has resulted low yield ranging 200 –<br />500 kg seed cotton per hectare. As a result, farmers income and farmers<br />interest in cotton cultivation are low . Multilocations trial were conducted<br />in Asembagus and Wongsorejo (East Java), Bayan (West Nusa Tenggara),<br />and Bantaeng as well as Bulukumba (South Sulawesi), on rain-fed area in<br />2004 to 2006. 9 lines of cotton and Kanesia 8 were arranged in randomized<br />block design with four replications three replications without irrigation 42<br />days after planting and one replication with optimal irrigation for the<br />estimation of drought susceptibility index. Monoculture cotton was grown<br />in plots sized 50 m 2 with 100 cm x 25 cm plant spacing, one plant per<br />hole. Parameters observed were seed cotton yield on water limited<br />condition, seed cotton yield on full irrigation, drought susceptibility index,<br />score of leaf damage caused by Amrasca biguttula, and fibre quality.<br />Means of productivity level of the cotton lines on water limited condition<br />were not significantly different to Kanesia 8, all of them were tolerant to<br />A biguttula with fiber quality was suitable for textile industries in<br />Indonesia. There were three lines reached productivity more than 1,500<br />kg/ha i.e. (135x182)(351x268)9, (135x182) (351x268)10, and (135x<br />182)10. From the trials, there were two promising lines i.e. lines<br />(135x182) (351x268) 9 and (339x448) 2 which can be released as new<br />varieties tolerant to water limited condition. Lines (135x182)(351x268) 9<br />was more tolerant to water limited condition than Kanesia 8, and it was not<br />significantly different in productivity, tolerancy to A biguttula, and fibre<br />quality. Lines (339x448)2 was superior on its fiber quality than Kanesia 8<br />and its productivity as well as its tolerancy to water limited condition and<br />A biguttula were not significantly different.
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