The effect of Alar on vegetative growth and fruiting behaviour of three varieties of apples in the Central Tablelands of New South Wales

1968 ◽  
Vol 8 (33) ◽  
pp. 450 ◽  
Author(s):  
Margaret A Oldham ◽  
WJ Greenhalgh
Keyword(s):  
Succinic Acid ◽  
Vegetative Growth ◽  
Shoot Growth ◽  
Fruit Set ◽  
New South ◽  
New South Wales ◽  
Fruit Size ◽  
Growth Retardant ◽  
Apple Varieties ◽  
South Wales

Trials were conducted in three successive years to test the response of Granny Smith, Jonathan, and Delicious apple varieties to Alar (succinic acid 2, 2-dimethyl hydrazide) applied at various times and concentrations. The results confirmed overseas reports of reduced shoot growth, increased fruit set, reduced fruit size, reduced pre-harvest drop, and, in some cases, increased blossoming the following spring. The Jonathan variety was less responsive to the growth retardant than Delicious, which was, in turn, less responsive than Granny Smith.

Effects of bunch trimming and double bunch covering on yield of bananas during winter in New South Wales

1996 ◽  
Vol 36 (2) ◽  
pp. 229 ◽  
Author(s):  
GG Johns
Keyword(s):  
Average Length ◽  
New South ◽  
New South Wales ◽  
Fruit Size ◽  
Double Covering ◽  
Finger Length ◽  
South Wales ◽  
Commercial Plantation

Bunch trimming (removal of male bud and several distal hands from bunches soon after flowering), and double covering (use of 2 bunch covers simultaneously) of banana bunches that emerge during winter in northern New South Wales could have the potential to increase the size, and hence grade and price of harvested fruit. Consequently bunches were either trimmed to 6, 8 or 10 hands or left untrimmed (male bud retained), and either single or double bunch covers were applied on a commercial plantation on 3 occasions during winter, and the effects on fruit size and quality were recorded. Bunch emergence to bunch harvest interval was reduced by an average of 5 days by bunch trimming. Finger length increased with increasing severity of bunch trimming, with the average length for the top 6 hands increased by 2.3% (P<0.01) for the 10-hand treatment to 6.1% (P<0.001) for the 6-hand treatment. Finger weight increased with increasing severity of bunch trimming, with weights for the top 6 hands increased by up to 14% (P < 0.001) on the 6-hand treatment. Double covering increased finger weight of the top 6 hands by 4% (P < 0.01). Trimming to 10, 8 and 6 hands increased the yield per bunch of extra large grade fruit by 18, 23 and 39% respectively. Double covering did not affect the yield of extra large fruit significantly. After excluding hands suffering from the mixed ripe condition, the 6-hand treatment yielded 51% more marketable extra large fruit than untrimmed bunches. Potential profitability of the treatments depended on price scenario. When prices were low the 6-hand treatment appeared most profitable, but at higher prices the 10-hand treatment would be preferable. Double covering appeared not to be worthwhile for all price scenarios used.

The effect of time and sowing and row spacing on the maturity and yield of three groundnut cultivars under irrigation

1985 ◽  
Vol 36 (4) ◽  
pp. 615 ◽  
Author(s):  
DK Muldoon
Keyword(s):  
Arachis Hypogaea ◽  
Harvest Index ◽  
Shoot Growth ◽  
Clay Soil ◽  
New South ◽  
New South Wales ◽  
Kernel Weight ◽  
Row Spacing ◽  
South Wales ◽  
Arachis Hypogaea L

White Spanish, Red Spanish and Virginia Bunch cultivars of Arachis hypogaea L. were sown at two row spacings (30 and 60 cm) and two times (29 October and 3 December) on an alkaline clay soil in western New South Wales. The crops were furrow irrigated between raised beds 1 m wide. Maximum oven dry pod yields were 3.0, 2.3 and 3.3 t ha-1 for white Spanish, Red Spanish and Virginia Bunch respectively. Corresponding shelling percentages were 65, 68 and 57%. White Spanish and Virginia Bunch matured 180-190 days after early sowing and Red Spanish after 210 days when frost stopped growth. The late sown crop failed to mature before the frosts, and yielded 15-25% less than the early sowing. The late crop had a shorter period for the production of pods and also a slightly lower rate of pod production because of reduced shoot growth; kernel weight per pod was similar at both sowings. Differences between cultivars were accounted for by differences in the rate of pod filling and hence ultimate kernel weight per pod, and furthermore, the harvest index differed among cultivars. White Spanish or Virginia Bunch sown in 30 cm rows before December can be recommended for irrigated groundnut production in western New South Wales.

Pollination of Banksia spp. by non-flying mammals in north-eastern New South Wales

2001 ◽  
Vol 49 (5) ◽  
pp. 637 ◽  
Author(s):  
Damian J. Hackett ◽  
Ross L. Goldingay
Keyword(s):  
Fruit Set ◽  
New South ◽  
New South Wales ◽  
Exclusion Experiment ◽  
South Wales ◽  
North Eastern ◽  
Nocturnal Pollinators ◽  
Additional Support ◽  
Effective Pollinators

Despite the accumulating evidence that non-flying mammals are effective pollinators, further research is required to clarify how widespread this phenomenon is. The role of non-flying mammals as pollinators of four species of Banksia was investigated in north-eastern New South Wales. Nine species of non-flying mammals were captured amongst flowering Banksia and all carried variable amounts of Banksia pollen on their fur or in their faeces. Although not captured, feathertail gliders (Acrobates pygmaeus) were observed foraging at Banksia inflorescences. Squirrel gliders (Petaurus norfolcensis) visiting B. integrifoliaand pale field-rats (Rattus tunneyi) visiting B. ericifolia, carried substantial loads of pollen. Fur pollen loads for these species were of a magnitude similar to those of nectarivorous birds that were sampled closer to the time of foraging. Assessment of newly opened flowers indicated that considerable amounts of pollen were removed at night. The results of a pollinator exclusion experiment were inconclusive but B. ericifolia inflorescences exposed to nocturnal pollinators had consistently high fruit-set. This study lends additional support to the notion that pollination of Banksia by non-flying mammals is widespread.

Reduced early growth of direct drilled wheat in southern New South Wales: causes and consequences

1987 ◽  
Vol 27 (6) ◽  
pp. 869 ◽  
Author(s):  
PS Cornish ◽  
JR Lymbery
Keyword(s):  
Water Use ◽  
Shoot Growth ◽  
New South ◽  
New South Wales ◽  
Dry Weight ◽  
Early Growth ◽  
Plant Population ◽  
Root Extension ◽  
South Wales ◽  
Direct Drilling

In five experiments with wheat over 4 years on a red earth soil in southern New South Wales, direct drilling reduced plant population by an average of 15% and individual plant dry weight at 10- 11 weeks by an average maximum of 33% compared with sowing into a cultivated seed bed. The maximum reduction in dry weight per unit area averaged 44% (at tillering), but compensatory growth reduced this to 17% by anthesis. Time to emergence was not reduced and differences in plant weight soon after emergence were very small, which suggests that the effect on plant growth occurred only after emergence. Effects of direct drilling on soil surface (0- 10 cm) temperature and water content were not important factors reducing plant population or early growth but high soil strength seemed the most likely cause of reduced root extension in the direct drilled seedbed (0-1 5 cm). Reduced root extension had no direct effect on plant water relations or nitrogen concentration in leaves, but there was a small effect on phosphorus concentration. Reduced root growth appears to reduce shoot growth but the mechanisms require further study. The reduced shoot growth led to reduced preanthesis water-use. After anthesis direct drilled crops generally used more water and had higher leaf water potentials than crops in cultivated soil, leading to yield increases in 2 of the years with dry spring conditions. Only in a drought year (1982) was there evidence of direct drilling reducing the maximum depth of rooting and therefore reducing total water-use resulting in lower grain yield (8%). Overall, direct drilling increased grain yields by 2.4% (2.514 v. 2.576 t/ha) compared with conventional tillage, despite the large reduction in early growth.

scholarly journals Thinning and Growth Control of Apples Treated with BAS-125 10W

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 558C-558
Author(s):  
Duane W. Greene
Keyword(s):  
Plant Growth ◽  
Vegetative Growth ◽  
Fruit Set ◽  
Fruit Size ◽  
Growth Control ◽  
Growth Retardant ◽  
Light Penetration ◽  
Red Color ◽  
The Us

BAS-125 10W is a new plant growth retardant that was evaluated on `McIntosh' apples to control excessive vegetative growth. When applied at concentrations between 0 and 375 ppm, it significantly reduced terminal growth. As a result, light penetration into the tree was increased and fruit at harvest had more red color, and more were graded into the US Extra Fancy category. BAS-125 increased fruit set; thus, fruit were smaller, but firmer, at harvest. Treated fruit were firmer and had less decay following 20 weeks of regular air storage. Several different thinning strategies were employed to thin BAS-125-treated `Delicious' trees. In one experiment, the best thinning treatment was a combination spray containing 10 ppm NAA plus carbaryl at petal fall followed by 8 ppm NAA when fruit size averaged 10 mm. The best treatment in another experiment was a Wilthin application at 80% bloom followed by 8 ppm NAA plus carbaryl at petal fall. Recommendations for the successful use of BAS-125 10W in the Northeast will be discussed.

Effect of clipping on yield of wheat

1968 ◽  
Vol 8 (35) ◽  
pp. 731 ◽  
Author(s):  
PR Dann
Keyword(s):  
Grain Yield ◽  
Vegetative Growth ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Yield Component ◽  
Grain Yields ◽  
South Wales

Wheat (CV. Heron) was subjected to various clipping treatments at Yanco, New South Wales, in 1963 and 1964. Clipping of vegetative growth decreased straw and grain yields in both years, but the decline in yield was much greater in 1963 than in 1964. Weight per grain was the major grain yield component reduced by clipping. Highly significant correlation; were obtained between dry matter removed at clipping, weight per grain, and grain yield.

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