สืบค้นงานวิจัย
Do Twin Stock Plants Perform Better Than Single Stock Plants in Hevea?
Thomson Abraham - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Do Twin Stock Plants Perform Better Than Single Stock Plants in Hevea?
ผู้แต่ง / หัวหน้าโครงการ (EN): Thomson Abraham
บทคัดย่อ (EN): A splice approach grafting to produce a tree with double root system is commonly carried out on some fruit trees for early fruiting. The resultant tree has more than one root system for better intake of nutrients and water which in turn enhances faster growth and better yield. The present study was undertaken to compare the performance of plants having single stock (single root system) and twin stock (double root system) in terms of growth and yield in Hevea. Planting materials with single root system were produced as per the standard techniques while plants with two root system were produced by twin-grafting two stock plants at one whorl stage. Clone RRII 105 was used for the study. The trial was laid out at CES Chethackal and the design was RBD with three replications having a plot size of nine plants. Seven treatments were included viz; (1) twin stocks raised in polybags, (2) single stocks raised in polybags, (3) twin stocks raised in field by seed-at-stake planting, (4) single stocks raised in field by seed-at-stake planting, (5) twin stocks raised in seedling nursery, transplanted to the field as budded stumps, (6) single stocks raised in seedling nursery, transplanted to the field as budded stumps and (7) polybag plants planted in the field, as control. To study the performance of the plants data was recorded on survival rate in the field, annual girth for 13 years and monthly dry rubber yield for a period of five years. The growth parameters included girth increment during the immature phase for seven years, girth at opening and girth increment under tapping estimated based on five years of tapping. Survival rate of plants raised in field by seed at stake planting in both twin and single stock seedlings was significantly lower compared to respective polybag plants as well as budded stump plants. Casualty due to wind damage was comparable between the treatments. The girth increment between plants having single stock and twin stock was found to be comparable statistically during immature phase as well as at the time of opening and after tapping for five years. Among the treatments highest girth increment during the immature phase before tapping was 30.8cm, recorded by single stocks raised in polybags and lowest of 23.6cm by twin stocks raised in field by seed-at-stake planting. At the time of opening for tapping the highest girth increment of 52.7cm was recorded by control plants and lowest of 44.9cm by twin stocks raised in field by seed-at-stake planting. After tapping for five years highest girth increment of 62.8cm was recorded by single stocks raised in polybags and lowest of 52.6cm by twin stocks raised in field by seed-at-stake planting. The mean yield between plants having single stock and twin stock was also found to be comparable statistically after tapping for five years. The highest mean yield was recorded by control plants (61.0g/t/t) and the plants raised in field by seed-at-stake planting showed the lowest mean yield (43.6g/t/t). The present studies showed that twin stock plants and single stock plants do not differ significantly in growth and yield and having two root system may not give the plant any added advantage in Hevea.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): planting materials
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Thomson Abraham. "Do Twin Stock Plants Perform Better Than Single Stock Plants in Hevea?". ไม่ระบุหน่วยงาน. ม.ป.ป.

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Do Twin Stock Plants Perform Better Than Single Stock Plants in Hevea?
Thomson Abraham
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
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