สืบค้นงานวิจัย
POLYCROSS BREEDING TOWARDS EVOLVING GENETICALLY DIVERSE HEVEA CLONES FOR SUSTAINABILITY
Kavitha K. Mydin - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): POLYCROSS BREEDING TOWARDS EVOLVING GENETICALLY DIVERSE HEVEA CLONES FOR SUSTAINABILITY
ผู้แต่ง / หัวหน้าโครงการ (EN): Kavitha K. Mydin
บทคัดย่อ (EN): Systematic efforts on polycross breeding in rubber were initiated in India in the late 1980s recognizing the significance of maintaining genetic diversity in rubber plantations and the challenge faced by plant breeders to provide the rubber grower with a diversity of planting material without compromising on yield. This paper discusses the results of a polycross breeding programme that was initiated in 1989 at the RRII. Open pollinated fruits of 20 promising parent clones were collected and the respective progenies were evaluated in a nursery. The superior progenies were identified and 15 clones per progeny from 10 parents were raised in a field trial adopting a compact family block design. The 150 clones were evaluated for rubber yield, timber yield and related attributes. Out of 27 promising selections made from this population, 23 clones were promising with respect to rubber yield . The selections were classified as latex-timber clones, latex clones, timber –latex clones and timber clones. Nine latex- timber clones with 12.20 to 81.36 per cent improvement in rubber yield over the high yielding check, RRII 105 coupled with high timber yield potential, nine high latex yielding clones with 12.56 -47.07 percent yield improvement and five timber latex clones with high timber yield coupled with rubber yield comparable to RRII 105 were selected. These promising clones belonged to seven different progenies, the parent clones of which were genetically diverse. The most promising 12 selections in the pipeline, with estimated rubber yields of 2210 to 3254 kg ha-1year-1 are now in the final stage of evaluation in farmer participatory multi locational trials.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): Timber yield
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Kavitha K. Mydin. "POLYCROSS BREEDING TOWARDS EVOLVING GENETICALLY DIVERSE HEVEA CLONES FOR SUSTAINABILITY". ไม่ระบุหน่วยงาน. ม.ป.ป.

Kavitha K. Mydin. "POLYCROSS BREEDING TOWARDS EVOLVING GENETICALLY DIVERSE HEVEA CLONES FOR SUSTAINABILITY". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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POLYCROSS BREEDING TOWARDS EVOLVING GENETICALLY DIVERSE HEVEA CLONES FOR SUSTAINABILITY
Kavitha K. Mydin
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
PERFORMANCES OF POLYCROSS PROGENIES AND THE IMPLICATION IN HEVEA BREEDING Early Performance of some Clones of Hevea brasiliensis In Dry Sub humid Region of North Konkan Evaluation of Rubber (Hevea brasiliensis) Modern Clones under Certain Stressful Climatic Conditions of Odisha Recombination Breeding of Hevea brasiliensis in India: Clones Evolved From the 1983 Hybridization Programme DEVELOPMENT OF DWARF CLONES OF HEVEA BRASILIENSIS Reaction of the Polycross Progeny of Prepotent Clones to Two Major Leaf Diseases of Rubber (Hevea brasiliensis) Plant Hormones and Oxidative Stress in Hevea brasiliensis Localization of Peroxidase Enzyme in the Bark of Hevea brasiliensis Non-Structural Carbohydrate Variability in Hevea Clones Effect of Temperature Constraints on Photosynthesis of Rubber (Hevea brasiliensis)
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